From c10a0a62c3537fbcf899358e3c3d6be9507fa18c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= Date: Fri, 26 Nov 2021 13:26:03 +0200 Subject: [PATCH] eth: request id dispatcher and direct req/reply APIs (#23576) * eth: request ID based message dispatcher * eth: fix dispatcher cancellation, rework fetchers idleness tracker * eth/downloader: drop peers who refuse to serve advertised chains --- cmd/utils/flags.go | 2 +- core/blockchain.go | 24 +- core/blockchain_repair_test.go | 224 ++-- core/blockchain_sethead_test.go | 240 ++-- core/blockchain_test.go | 2 +- core/chain_makers.go | 22 + core/rawdb/accessors_chain.go | 18 - core/rawdb/accessors_snapshot.go | 8 - eth/downloader/downloader.go | 1132 ++++++----------- eth/downloader/downloader_test.go | 1088 ++++++---------- eth/downloader/fetchers.go | 115 ++ eth/downloader/fetchers_concurrent.go | 381 ++++++ eth/downloader/fetchers_concurrent_bodies.go | 104 ++ eth/downloader/fetchers_concurrent_headers.go | 95 ++ .../fetchers_concurrent_receipts.go | 103 ++ eth/downloader/metrics.go | 3 - eth/downloader/modes.go | 9 +- eth/downloader/peer.go | 269 +--- eth/downloader/queue.go | 164 ++- eth/downloader/queue_test.go | 10 +- eth/downloader/statesync.go | 518 +------- eth/downloader/testchain_test.go | 227 ++-- eth/downloader/types.go | 79 -- eth/fetcher/block_fetcher.go | 42 +- eth/fetcher/block_fetcher_test.go | 85 +- eth/handler.go | 131 +- eth/handler_eth.go | 94 -- eth/handler_eth_test.go | 28 +- eth/handler_test.go | 2 +- eth/peer.go | 7 +- eth/protocols/eth/dispatcher.go | 247 ++++ eth/protocols/eth/handlers.go | 81 +- eth/protocols/eth/peer.go | 158 ++- eth/protocols/snap/handler.go | 552 ++++---- eth/protocols/snap/peer.go | 4 +- eth/protocols/snap/protocol.go | 6 +- eth/protocols/snap/sync.go | 44 +- eth/sync.go | 31 +- eth/sync_test.go | 65 +- ethclient/ethclient.go | 18 +- graphql/graphql.go | 64 +- graphql/schema.go | 6 - interfaces.go | 18 +- internal/ethapi/api.go | 20 +- internal/jsre/deps/bindata.go | 6 +- internal/jsre/deps/web3.js | 16 +- les/downloader/downloader.go | 10 +- les/downloader/downloader_test.go | 4 +- les/downloader/statesync.go | 3 +- les/fetcher/block_fetcher_test.go | 4 +- mobile/ethereum.go | 20 +- p2p/peer.go | 10 +- 52 files changed, 3213 insertions(+), 3400 deletions(-) create mode 100644 eth/downloader/fetchers.go create mode 100644 eth/downloader/fetchers_concurrent.go create mode 100644 eth/downloader/fetchers_concurrent_bodies.go create mode 100644 eth/downloader/fetchers_concurrent_headers.go create mode 100644 eth/downloader/fetchers_concurrent_receipts.go delete mode 100644 eth/downloader/types.go create mode 100644 eth/protocols/eth/dispatcher.go diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go index 63f8d105b..ffff2c92c 100644 --- a/cmd/utils/flags.go +++ b/cmd/utils/flags.go @@ -215,7 +215,7 @@ var ( defaultSyncMode = ethconfig.Defaults.SyncMode SyncModeFlag = TextMarshalerFlag{ Name: "syncmode", - Usage: `Blockchain sync mode ("fast", "full", "snap" or "light")`, + Usage: `Blockchain sync mode ("snap", "full" or "light")`, Value: &defaultSyncMode, } GCModeFlag = cli.StringFlag{ diff --git a/core/blockchain.go b/core/blockchain.go index 0ecad07dd..68388ec40 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -629,9 +629,9 @@ func (bc *BlockChain) setHeadBeyondRoot(head uint64, root common.Hash, repair bo return rootNumber, bc.loadLastState() } -// FastSyncCommitHead sets the current head block to the one defined by the hash +// SnapSyncCommitHead sets the current head block to the one defined by the hash // irrelevant what the chain contents were prior. -func (bc *BlockChain) FastSyncCommitHead(hash common.Hash) error { +func (bc *BlockChain) SnapSyncCommitHead(hash common.Hash) error { // Make sure that both the block as well at its state trie exists block := bc.GetBlockByHash(hash) if block == nil { @@ -736,30 +736,24 @@ func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error { // // Note, this function assumes that the `mu` mutex is held! func (bc *BlockChain) writeHeadBlock(block *types.Block) { - // If the block is on a side chain or an unknown one, force other heads onto it too - updateHeads := rawdb.ReadCanonicalHash(bc.db, block.NumberU64()) != block.Hash() - // Add the block to the canonical chain number scheme and mark as the head batch := bc.db.NewBatch() + rawdb.WriteHeadHeaderHash(batch, block.Hash()) + rawdb.WriteHeadFastBlockHash(batch, block.Hash()) rawdb.WriteCanonicalHash(batch, block.Hash(), block.NumberU64()) rawdb.WriteTxLookupEntriesByBlock(batch, block) rawdb.WriteHeadBlockHash(batch, block.Hash()) - // If the block is better than our head or is on a different chain, force update heads - if updateHeads { - rawdb.WriteHeadHeaderHash(batch, block.Hash()) - rawdb.WriteHeadFastBlockHash(batch, block.Hash()) - } // Flush the whole batch into the disk, exit the node if failed if err := batch.Write(); err != nil { log.Crit("Failed to update chain indexes and markers", "err", err) } // Update all in-memory chain markers in the last step - if updateHeads { - bc.hc.SetCurrentHeader(block.Header()) - bc.currentFastBlock.Store(block) - headFastBlockGauge.Update(int64(block.NumberU64())) - } + bc.hc.SetCurrentHeader(block.Header()) + + bc.currentFastBlock.Store(block) + headFastBlockGauge.Update(int64(block.NumberU64())) + bc.currentBlock.Store(block) headBlockGauge.Update(int64(block.NumberU64())) } diff --git a/core/blockchain_repair_test.go b/core/blockchain_repair_test.go index 231a83c09..eb5025ed5 100644 --- a/core/blockchain_repair_test.go +++ b/core/blockchain_repair_test.go @@ -79,10 +79,10 @@ func testShortRepair(t *testing.T, snapshots bool) { // already committed, after which the process crashed. In this case we expect the full // chain to be rolled back to the committed block, but the chain data itself left in // the database for replaying. -func TestShortFastSyncedRepair(t *testing.T) { testShortFastSyncedRepair(t, false) } -func TestShortFastSyncedRepairWithSnapshots(t *testing.T) { testShortFastSyncedRepair(t, true) } +func TestShortSnapSyncedRepair(t *testing.T) { testShortSnapSyncedRepair(t, false) } +func TestShortSnapSyncedRepairWithSnapshots(t *testing.T) { testShortSnapSyncedRepair(t, true) } -func testShortFastSyncedRepair(t *testing.T, snapshots bool) { +func testShortSnapSyncedRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // @@ -119,10 +119,10 @@ func testShortFastSyncedRepair(t *testing.T, snapshots bool) { // not yet committed, but the process crashed. In this case we expect the chain to // detect that it was fast syncing and not delete anything, since we can just pick // up directly where we left off. -func TestShortFastSyncingRepair(t *testing.T) { testShortFastSyncingRepair(t, false) } -func TestShortFastSyncingRepairWithSnapshots(t *testing.T) { testShortFastSyncingRepair(t, true) } +func TestShortSnapSyncingRepair(t *testing.T) { testShortSnapSyncingRepair(t, false) } +func TestShortSnapSyncingRepairWithSnapshots(t *testing.T) { testShortSnapSyncingRepair(t, true) } -func testShortFastSyncingRepair(t *testing.T, snapshots bool) { +func testShortSnapSyncingRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // @@ -203,14 +203,14 @@ func testShortOldForkedRepair(t *testing.T, snapshots bool) { // crashed. In this test scenario the side chain is below the committed block. In // this case we expect the canonical chain to be rolled back to the committed block, // but the chain data itself left in the database for replaying. -func TestShortOldForkedFastSyncedRepair(t *testing.T) { - testShortOldForkedFastSyncedRepair(t, false) +func TestShortOldForkedSnapSyncedRepair(t *testing.T) { + testShortOldForkedSnapSyncedRepair(t, false) } -func TestShortOldForkedFastSyncedRepairWithSnapshots(t *testing.T) { - testShortOldForkedFastSyncedRepair(t, true) +func TestShortOldForkedSnapSyncedRepairWithSnapshots(t *testing.T) { + testShortOldForkedSnapSyncedRepair(t, true) } -func testShortOldForkedFastSyncedRepair(t *testing.T, snapshots bool) { +func testShortOldForkedSnapSyncedRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3 @@ -250,14 +250,14 @@ func testShortOldForkedFastSyncedRepair(t *testing.T, snapshots bool) { // test scenario the side chain is below the committed block. In this case we expect // the chain to detect that it was fast syncing and not delete anything, since we // can just pick up directly where we left off. -func TestShortOldForkedFastSyncingRepair(t *testing.T) { - testShortOldForkedFastSyncingRepair(t, false) +func TestShortOldForkedSnapSyncingRepair(t *testing.T) { + testShortOldForkedSnapSyncingRepair(t, false) } -func TestShortOldForkedFastSyncingRepairWithSnapshots(t *testing.T) { - testShortOldForkedFastSyncingRepair(t, true) +func TestShortOldForkedSnapSyncingRepairWithSnapshots(t *testing.T) { + testShortOldForkedSnapSyncingRepair(t, true) } -func testShortOldForkedFastSyncingRepair(t *testing.T, snapshots bool) { +func testShortOldForkedSnapSyncingRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3 @@ -340,14 +340,14 @@ func testShortNewlyForkedRepair(t *testing.T, snapshots bool) { // crashed. In this test scenario the side chain reaches above the committed block. // In this case we expect the canonical chain to be rolled back to the committed // block, but the chain data itself left in the database for replaying. -func TestShortNewlyForkedFastSyncedRepair(t *testing.T) { - testShortNewlyForkedFastSyncedRepair(t, false) +func TestShortNewlyForkedSnapSyncedRepair(t *testing.T) { + testShortNewlyForkedSnapSyncedRepair(t, false) } -func TestShortNewlyForkedFastSyncedRepairWithSnapshots(t *testing.T) { - testShortNewlyForkedFastSyncedRepair(t, true) +func TestShortNewlyForkedSnapSyncedRepairWithSnapshots(t *testing.T) { + testShortNewlyForkedSnapSyncedRepair(t, true) } -func testShortNewlyForkedFastSyncedRepair(t *testing.T, snapshots bool) { +func testShortNewlyForkedSnapSyncedRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6 @@ -387,14 +387,14 @@ func testShortNewlyForkedFastSyncedRepair(t *testing.T, snapshots bool) { // this test scenario the side chain reaches above the committed block. In this // case we expect the chain to detect that it was fast syncing and not delete // anything, since we can just pick up directly where we left off. -func TestShortNewlyForkedFastSyncingRepair(t *testing.T) { - testShortNewlyForkedFastSyncingRepair(t, false) +func TestShortNewlyForkedSnapSyncingRepair(t *testing.T) { + testShortNewlyForkedSnapSyncingRepair(t, false) } -func TestShortNewlyForkedFastSyncingRepairWithSnapshots(t *testing.T) { - testShortNewlyForkedFastSyncingRepair(t, true) +func TestShortNewlyForkedSnapSyncingRepairWithSnapshots(t *testing.T) { + testShortNewlyForkedSnapSyncingRepair(t, true) } -func testShortNewlyForkedFastSyncingRepair(t *testing.T, snapshots bool) { +func testShortNewlyForkedSnapSyncingRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6 @@ -475,14 +475,14 @@ func testShortReorgedRepair(t *testing.T, snapshots bool) { // the fast sync pivot point was already committed to disk and then the process // crashed. In this case we expect the canonical chain to be rolled back to the // committed block, but the chain data itself left in the database for replaying. -func TestShortReorgedFastSyncedRepair(t *testing.T) { - testShortReorgedFastSyncedRepair(t, false) +func TestShortReorgedSnapSyncedRepair(t *testing.T) { + testShortReorgedSnapSyncedRepair(t, false) } -func TestShortReorgedFastSyncedRepairWithSnapshots(t *testing.T) { - testShortReorgedFastSyncedRepair(t, true) +func TestShortReorgedSnapSyncedRepairWithSnapshots(t *testing.T) { + testShortReorgedSnapSyncedRepair(t, true) } -func testShortReorgedFastSyncedRepair(t *testing.T, snapshots bool) { +func testShortReorgedSnapSyncedRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10 @@ -521,14 +521,14 @@ func testShortReorgedFastSyncedRepair(t *testing.T, snapshots bool) { // the fast sync pivot point was not yet committed, but the process crashed. In // this case we expect the chain to detect that it was fast syncing and not delete // anything, since we can just pick up directly where we left off. -func TestShortReorgedFastSyncingRepair(t *testing.T) { - testShortReorgedFastSyncingRepair(t, false) +func TestShortReorgedSnapSyncingRepair(t *testing.T) { + testShortReorgedSnapSyncingRepair(t, false) } -func TestShortReorgedFastSyncingRepairWithSnapshots(t *testing.T) { - testShortReorgedFastSyncingRepair(t, true) +func TestShortReorgedSnapSyncingRepairWithSnapshots(t *testing.T) { + testShortReorgedSnapSyncingRepair(t, true) } -func testShortReorgedFastSyncingRepair(t *testing.T, snapshots bool) { +func testShortReorgedSnapSyncingRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10 @@ -656,14 +656,14 @@ func testLongDeepRepair(t *testing.T, snapshots bool) { // sync pivot point - newer than the ancient limit - was already committed, after // which the process crashed. In this case we expect the chain to be rolled back // to the committed block, with everything afterwads kept as fast sync data. -func TestLongFastSyncedShallowRepair(t *testing.T) { - testLongFastSyncedShallowRepair(t, false) +func TestLongSnapSyncedShallowRepair(t *testing.T) { + testLongSnapSyncedShallowRepair(t, false) } -func TestLongFastSyncedShallowRepairWithSnapshots(t *testing.T) { - testLongFastSyncedShallowRepair(t, true) +func TestLongSnapSyncedShallowRepairWithSnapshots(t *testing.T) { + testLongSnapSyncedShallowRepair(t, true) } -func testLongFastSyncedShallowRepair(t *testing.T, snapshots bool) { +func testLongSnapSyncedShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // @@ -705,10 +705,10 @@ func testLongFastSyncedShallowRepair(t *testing.T, snapshots bool) { // sync pivot point - older than the ancient limit - was already committed, after // which the process crashed. In this case we expect the chain to be rolled back // to the committed block, with everything afterwads deleted. -func TestLongFastSyncedDeepRepair(t *testing.T) { testLongFastSyncedDeepRepair(t, false) } -func TestLongFastSyncedDeepRepairWithSnapshots(t *testing.T) { testLongFastSyncedDeepRepair(t, true) } +func TestLongSnapSyncedDeepRepair(t *testing.T) { testLongSnapSyncedDeepRepair(t, false) } +func TestLongSnapSyncedDeepRepairWithSnapshots(t *testing.T) { testLongSnapSyncedDeepRepair(t, true) } -func testLongFastSyncedDeepRepair(t *testing.T, snapshots bool) { +func testLongSnapSyncedDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // @@ -750,14 +750,14 @@ func testLongFastSyncedDeepRepair(t *testing.T, snapshots bool) { // process crashed. In this case we expect the chain to detect that it was fast // syncing and not delete anything, since we can just pick up directly where we // left off. -func TestLongFastSyncingShallowRepair(t *testing.T) { - testLongFastSyncingShallowRepair(t, false) +func TestLongSnapSyncingShallowRepair(t *testing.T) { + testLongSnapSyncingShallowRepair(t, false) } -func TestLongFastSyncingShallowRepairWithSnapshots(t *testing.T) { - testLongFastSyncingShallowRepair(t, true) +func TestLongSnapSyncingShallowRepairWithSnapshots(t *testing.T) { + testLongSnapSyncingShallowRepair(t, true) } -func testLongFastSyncingShallowRepair(t *testing.T, snapshots bool) { +func testLongSnapSyncingShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // @@ -800,10 +800,10 @@ func testLongFastSyncingShallowRepair(t *testing.T, snapshots bool) { // process crashed. In this case we expect the chain to detect that it was fast // syncing and not delete anything, since we can just pick up directly where we // left off. -func TestLongFastSyncingDeepRepair(t *testing.T) { testLongFastSyncingDeepRepair(t, false) } -func TestLongFastSyncingDeepRepairWithSnapshots(t *testing.T) { testLongFastSyncingDeepRepair(t, true) } +func TestLongSnapSyncingDeepRepair(t *testing.T) { testLongSnapSyncingDeepRepair(t, false) } +func TestLongSnapSyncingDeepRepairWithSnapshots(t *testing.T) { testLongSnapSyncingDeepRepair(t, true) } -func testLongFastSyncingDeepRepair(t *testing.T, snapshots bool) { +func testLongSnapSyncingDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // @@ -946,14 +946,14 @@ func testLongOldForkedDeepRepair(t *testing.T, snapshots bool) { // the side chain is below the committed block. In this case we expect the chain // to be rolled back to the committed block, with everything afterwads kept as // fast sync data; the side chain completely nuked by the freezer. -func TestLongOldForkedFastSyncedShallowRepair(t *testing.T) { - testLongOldForkedFastSyncedShallowRepair(t, false) +func TestLongOldForkedSnapSyncedShallowRepair(t *testing.T) { + testLongOldForkedSnapSyncedShallowRepair(t, false) } -func TestLongOldForkedFastSyncedShallowRepairWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncedShallowRepair(t, true) +func TestLongOldForkedSnapSyncedShallowRepairWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncedShallowRepair(t, true) } -func testLongOldForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncedShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3 @@ -998,14 +998,14 @@ func testLongOldForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) { // the side chain is below the committed block. In this case we expect the canonical // chain to be rolled back to the committed block, with everything afterwads deleted; // the side chain completely nuked by the freezer. -func TestLongOldForkedFastSyncedDeepRepair(t *testing.T) { - testLongOldForkedFastSyncedDeepRepair(t, false) +func TestLongOldForkedSnapSyncedDeepRepair(t *testing.T) { + testLongOldForkedSnapSyncedDeepRepair(t, false) } -func TestLongOldForkedFastSyncedDeepRepairWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncedDeepRepair(t, true) +func TestLongOldForkedSnapSyncedDeepRepairWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncedDeepRepair(t, true) } -func testLongOldForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncedDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3 @@ -1049,14 +1049,14 @@ func testLongOldForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) { // chain is below the committed block. In this case we expect the chain to detect // that it was fast syncing and not delete anything. The side chain is completely // nuked by the freezer. -func TestLongOldForkedFastSyncingShallowRepair(t *testing.T) { - testLongOldForkedFastSyncingShallowRepair(t, false) +func TestLongOldForkedSnapSyncingShallowRepair(t *testing.T) { + testLongOldForkedSnapSyncingShallowRepair(t, false) } -func TestLongOldForkedFastSyncingShallowRepairWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncingShallowRepair(t, true) +func TestLongOldForkedSnapSyncingShallowRepairWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncingShallowRepair(t, true) } -func testLongOldForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncingShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3 @@ -1101,14 +1101,14 @@ func testLongOldForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) { // chain is below the committed block. In this case we expect the chain to detect // that it was fast syncing and not delete anything. The side chain is completely // nuked by the freezer. -func TestLongOldForkedFastSyncingDeepRepair(t *testing.T) { - testLongOldForkedFastSyncingDeepRepair(t, false) +func TestLongOldForkedSnapSyncingDeepRepair(t *testing.T) { + testLongOldForkedSnapSyncingDeepRepair(t, false) } -func TestLongOldForkedFastSyncingDeepRepairWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncingDeepRepair(t, true) +func TestLongOldForkedSnapSyncingDeepRepairWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncingDeepRepair(t, true) } -func testLongOldForkedFastSyncingDeepRepair(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncingDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3 @@ -1252,14 +1252,14 @@ func testLongNewerForkedDeepRepair(t *testing.T, snapshots bool) { // the side chain is above the committed block. In this case we expect the chain // to be rolled back to the committed block, with everything afterwads kept as fast // sync data; the side chain completely nuked by the freezer. -func TestLongNewerForkedFastSyncedShallowRepair(t *testing.T) { - testLongNewerForkedFastSyncedShallowRepair(t, false) +func TestLongNewerForkedSnapSyncedShallowRepair(t *testing.T) { + testLongNewerForkedSnapSyncedShallowRepair(t, false) } -func TestLongNewerForkedFastSyncedShallowRepairWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncedShallowRepair(t, true) +func TestLongNewerForkedSnapSyncedShallowRepairWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncedShallowRepair(t, true) } -func testLongNewerForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncedShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1304,14 +1304,14 @@ func testLongNewerForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) { // the side chain is above the committed block. In this case we expect the canonical // chain to be rolled back to the committed block, with everything afterwads deleted; // the side chain completely nuked by the freezer. -func TestLongNewerForkedFastSyncedDeepRepair(t *testing.T) { - testLongNewerForkedFastSyncedDeepRepair(t, false) +func TestLongNewerForkedSnapSyncedDeepRepair(t *testing.T) { + testLongNewerForkedSnapSyncedDeepRepair(t, false) } -func TestLongNewerForkedFastSyncedDeepRepairWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncedDeepRepair(t, true) +func TestLongNewerForkedSnapSyncedDeepRepairWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncedDeepRepair(t, true) } -func testLongNewerForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncedDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1355,14 +1355,14 @@ func testLongNewerForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) { // chain is above the committed block. In this case we expect the chain to detect // that it was fast syncing and not delete anything. The side chain is completely // nuked by the freezer. -func TestLongNewerForkedFastSyncingShallowRepair(t *testing.T) { - testLongNewerForkedFastSyncingShallowRepair(t, false) +func TestLongNewerForkedSnapSyncingShallowRepair(t *testing.T) { + testLongNewerForkedSnapSyncingShallowRepair(t, false) } -func TestLongNewerForkedFastSyncingShallowRepairWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncingShallowRepair(t, true) +func TestLongNewerForkedSnapSyncingShallowRepairWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncingShallowRepair(t, true) } -func testLongNewerForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncingShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1407,14 +1407,14 @@ func testLongNewerForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) { // chain is above the committed block. In this case we expect the chain to detect // that it was fast syncing and not delete anything. The side chain is completely // nuked by the freezer. -func TestLongNewerForkedFastSyncingDeepRepair(t *testing.T) { - testLongNewerForkedFastSyncingDeepRepair(t, false) +func TestLongNewerForkedSnapSyncingDeepRepair(t *testing.T) { + testLongNewerForkedSnapSyncingDeepRepair(t, false) } -func TestLongNewerForkedFastSyncingDeepRepairWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncingDeepRepair(t, true) +func TestLongNewerForkedSnapSyncingDeepRepairWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncingDeepRepair(t, true) } -func testLongNewerForkedFastSyncingDeepRepair(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncingDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1552,14 +1552,14 @@ func testLongReorgedDeepRepair(t *testing.T, snapshots bool) { // expect the chain to be rolled back to the committed block, with everything // afterwads kept as fast sync data. The side chain completely nuked by the // freezer. -func TestLongReorgedFastSyncedShallowRepair(t *testing.T) { - testLongReorgedFastSyncedShallowRepair(t, false) +func TestLongReorgedSnapSyncedShallowRepair(t *testing.T) { + testLongReorgedSnapSyncedShallowRepair(t, false) } -func TestLongReorgedFastSyncedShallowRepairWithSnapshots(t *testing.T) { - testLongReorgedFastSyncedShallowRepair(t, true) +func TestLongReorgedSnapSyncedShallowRepairWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncedShallowRepair(t, true) } -func testLongReorgedFastSyncedShallowRepair(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncedShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1603,14 +1603,14 @@ func testLongReorgedFastSyncedShallowRepair(t *testing.T, snapshots bool) { // was already committed to disk and then the process crashed. In this case we // expect the canonical chains to be rolled back to the committed block, with // everything afterwads deleted. The side chain completely nuked by the freezer. -func TestLongReorgedFastSyncedDeepRepair(t *testing.T) { - testLongReorgedFastSyncedDeepRepair(t, false) +func TestLongReorgedSnapSyncedDeepRepair(t *testing.T) { + testLongReorgedSnapSyncedDeepRepair(t, false) } -func TestLongReorgedFastSyncedDeepRepairWithSnapshots(t *testing.T) { - testLongReorgedFastSyncedDeepRepair(t, true) +func TestLongReorgedSnapSyncedDeepRepairWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncedDeepRepair(t, true) } -func testLongReorgedFastSyncedDeepRepair(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncedDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1653,14 +1653,14 @@ func testLongReorgedFastSyncedDeepRepair(t *testing.T, snapshots bool) { // was not yet committed, but the process crashed. In this case we expect the // chain to detect that it was fast syncing and not delete anything, since we // can just pick up directly where we left off. -func TestLongReorgedFastSyncingShallowRepair(t *testing.T) { - testLongReorgedFastSyncingShallowRepair(t, false) +func TestLongReorgedSnapSyncingShallowRepair(t *testing.T) { + testLongReorgedSnapSyncingShallowRepair(t, false) } -func TestLongReorgedFastSyncingShallowRepairWithSnapshots(t *testing.T) { - testLongReorgedFastSyncingShallowRepair(t, true) +func TestLongReorgedSnapSyncingShallowRepairWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncingShallowRepair(t, true) } -func testLongReorgedFastSyncingShallowRepair(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncingShallowRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1704,14 +1704,14 @@ func testLongReorgedFastSyncingShallowRepair(t *testing.T, snapshots bool) { // was not yet committed, but the process crashed. In this case we expect the // chain to detect that it was fast syncing and not delete anything, since we // can just pick up directly where we left off. -func TestLongReorgedFastSyncingDeepRepair(t *testing.T) { - testLongReorgedFastSyncingDeepRepair(t, false) +func TestLongReorgedSnapSyncingDeepRepair(t *testing.T) { + testLongReorgedSnapSyncingDeepRepair(t, false) } -func TestLongReorgedFastSyncingDeepRepairWithSnapshots(t *testing.T) { - testLongReorgedFastSyncingDeepRepair(t, true) +func TestLongReorgedSnapSyncingDeepRepairWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncingDeepRepair(t, true) } -func testLongReorgedFastSyncingDeepRepair(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncingDeepRepair(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 diff --git a/core/blockchain_sethead_test.go b/core/blockchain_sethead_test.go index 27b6be6e1..b2b3a058a 100644 --- a/core/blockchain_sethead_test.go +++ b/core/blockchain_sethead_test.go @@ -194,10 +194,10 @@ func testShortSetHead(t *testing.T, snapshots bool) { // Everything above the sethead point should be deleted. In between the committed // block and the requested head the data can remain as "fast sync" data to avoid // redownloading it. -func TestShortFastSyncedSetHead(t *testing.T) { testShortFastSyncedSetHead(t, false) } -func TestShortFastSyncedSetHeadWithSnapshots(t *testing.T) { testShortFastSyncedSetHead(t, true) } +func TestShortSnapSyncedSetHead(t *testing.T) { testShortSnapSyncedSetHead(t, false) } +func TestShortSnapSyncedSetHeadWithSnapshots(t *testing.T) { testShortSnapSyncedSetHead(t, true) } -func testShortFastSyncedSetHead(t *testing.T, snapshots bool) { +func testShortSnapSyncedSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // @@ -236,10 +236,10 @@ func testShortFastSyncedSetHead(t *testing.T, snapshots bool) { // detect that it was fast syncing and delete everything from the new head, since // we can just pick up fast syncing from there. The head full block should be set // to the genesis. -func TestShortFastSyncingSetHead(t *testing.T) { testShortFastSyncingSetHead(t, false) } -func TestShortFastSyncingSetHeadWithSnapshots(t *testing.T) { testShortFastSyncingSetHead(t, true) } +func TestShortSnapSyncingSetHead(t *testing.T) { testShortSnapSyncingSetHead(t, false) } +func TestShortSnapSyncingSetHeadWithSnapshots(t *testing.T) { testShortSnapSyncingSetHead(t, true) } -func testShortFastSyncingSetHead(t *testing.T, snapshots bool) { +func testShortSnapSyncingSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // @@ -326,14 +326,14 @@ func testShortOldForkedSetHead(t *testing.T, snapshots bool) { // block. Everything above the sethead point should be deleted. In between the // committed block and the requested head the data can remain as "fast sync" data // to avoid redownloading it. The side chain should be left alone as it was shorter. -func TestShortOldForkedFastSyncedSetHead(t *testing.T) { - testShortOldForkedFastSyncedSetHead(t, false) +func TestShortOldForkedSnapSyncedSetHead(t *testing.T) { + testShortOldForkedSnapSyncedSetHead(t, false) } -func TestShortOldForkedFastSyncedSetHeadWithSnapshots(t *testing.T) { - testShortOldForkedFastSyncedSetHead(t, true) +func TestShortOldForkedSnapSyncedSetHeadWithSnapshots(t *testing.T) { + testShortOldForkedSnapSyncedSetHead(t, true) } -func testShortOldForkedFastSyncedSetHead(t *testing.T, snapshots bool) { +func testShortOldForkedSnapSyncedSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3 @@ -375,14 +375,14 @@ func testShortOldForkedFastSyncedSetHead(t *testing.T, snapshots bool) { // the chain to detect that it was fast syncing and delete everything from the new // head, since we can just pick up fast syncing from there. The head full block // should be set to the genesis. -func TestShortOldForkedFastSyncingSetHead(t *testing.T) { - testShortOldForkedFastSyncingSetHead(t, false) +func TestShortOldForkedSnapSyncingSetHead(t *testing.T) { + testShortOldForkedSnapSyncingSetHead(t, false) } -func TestShortOldForkedFastSyncingSetHeadWithSnapshots(t *testing.T) { - testShortOldForkedFastSyncingSetHead(t, true) +func TestShortOldForkedSnapSyncingSetHeadWithSnapshots(t *testing.T) { + testShortOldForkedSnapSyncingSetHead(t, true) } -func testShortOldForkedFastSyncingSetHead(t *testing.T, snapshots bool) { +func testShortOldForkedSnapSyncingSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3 @@ -478,14 +478,14 @@ func testShortNewlyForkedSetHead(t *testing.T, snapshots bool) { // The side chain could be left to be if the fork point was before the new head // we are deleting to, but it would be exceedingly hard to detect that case and // properly handle it, so we'll trade extra work in exchange for simpler code. -func TestShortNewlyForkedFastSyncedSetHead(t *testing.T) { - testShortNewlyForkedFastSyncedSetHead(t, false) +func TestShortNewlyForkedSnapSyncedSetHead(t *testing.T) { + testShortNewlyForkedSnapSyncedSetHead(t, false) } -func TestShortNewlyForkedFastSyncedSetHeadWithSnapshots(t *testing.T) { - testShortNewlyForkedFastSyncedSetHead(t, true) +func TestShortNewlyForkedSnapSyncedSetHeadWithSnapshots(t *testing.T) { + testShortNewlyForkedSnapSyncedSetHead(t, true) } -func testShortNewlyForkedFastSyncedSetHead(t *testing.T, snapshots bool) { +func testShortNewlyForkedSnapSyncedSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8 @@ -531,14 +531,14 @@ func testShortNewlyForkedFastSyncedSetHead(t *testing.T, snapshots bool) { // The side chain could be left to be if the fork point was before the new head // we are deleting to, but it would be exceedingly hard to detect that case and // properly handle it, so we'll trade extra work in exchange for simpler code. -func TestShortNewlyForkedFastSyncingSetHead(t *testing.T) { - testShortNewlyForkedFastSyncingSetHead(t, false) +func TestShortNewlyForkedSnapSyncingSetHead(t *testing.T) { + testShortNewlyForkedSnapSyncingSetHead(t, false) } -func TestShortNewlyForkedFastSyncingSetHeadWithSnapshots(t *testing.T) { - testShortNewlyForkedFastSyncingSetHead(t, true) +func TestShortNewlyForkedSnapSyncingSetHeadWithSnapshots(t *testing.T) { + testShortNewlyForkedSnapSyncingSetHead(t, true) } -func testShortNewlyForkedFastSyncingSetHead(t *testing.T, snapshots bool) { +func testShortNewlyForkedSnapSyncingSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8 @@ -634,14 +634,14 @@ func testShortReorgedSetHead(t *testing.T, snapshots bool) { // The side chain could be left to be if the fork point was before the new head // we are deleting to, but it would be exceedingly hard to detect that case and // properly handle it, so we'll trade extra work in exchange for simpler code. -func TestShortReorgedFastSyncedSetHead(t *testing.T) { - testShortReorgedFastSyncedSetHead(t, false) +func TestShortReorgedSnapSyncedSetHead(t *testing.T) { + testShortReorgedSnapSyncedSetHead(t, false) } -func TestShortReorgedFastSyncedSetHeadWithSnapshots(t *testing.T) { - testShortReorgedFastSyncedSetHead(t, true) +func TestShortReorgedSnapSyncedSetHeadWithSnapshots(t *testing.T) { + testShortReorgedSnapSyncedSetHead(t, true) } -func testShortReorgedFastSyncedSetHead(t *testing.T, snapshots bool) { +func testShortReorgedSnapSyncedSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10 @@ -686,14 +686,14 @@ func testShortReorgedFastSyncedSetHead(t *testing.T, snapshots bool) { // The side chain could be left to be if the fork point was before the new head // we are deleting to, but it would be exceedingly hard to detect that case and // properly handle it, so we'll trade extra work in exchange for simpler code. -func TestShortReorgedFastSyncingSetHead(t *testing.T) { - testShortReorgedFastSyncingSetHead(t, false) +func TestShortReorgedSnapSyncingSetHead(t *testing.T) { + testShortReorgedSnapSyncingSetHead(t, false) } -func TestShortReorgedFastSyncingSetHeadWithSnapshots(t *testing.T) { - testShortReorgedFastSyncingSetHead(t, true) +func TestShortReorgedSnapSyncingSetHeadWithSnapshots(t *testing.T) { + testShortReorgedSnapSyncingSetHead(t, true) } -func testShortReorgedFastSyncingSetHead(t *testing.T, snapshots bool) { +func testShortReorgedSnapSyncingSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10 @@ -829,14 +829,14 @@ func testLongDeepSetHead(t *testing.T, snapshots bool) { // back to the committed block. Everything above the sethead point should be // deleted. In between the committed block and the requested head the data can // remain as "fast sync" data to avoid redownloading it. -func TestLongFastSyncedShallowSetHead(t *testing.T) { - testLongFastSyncedShallowSetHead(t, false) +func TestLongSnapSyncedShallowSetHead(t *testing.T) { + testLongSnapSyncedShallowSetHead(t, false) } -func TestLongFastSyncedShallowSetHeadWithSnapshots(t *testing.T) { - testLongFastSyncedShallowSetHead(t, true) +func TestLongSnapSyncedShallowSetHeadWithSnapshots(t *testing.T) { + testLongSnapSyncedShallowSetHead(t, true) } -func testLongFastSyncedShallowSetHead(t *testing.T, snapshots bool) { +func testLongSnapSyncedShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // @@ -880,10 +880,10 @@ func testLongFastSyncedShallowSetHead(t *testing.T, snapshots bool) { // which sethead was called. In this case we expect the full chain to be rolled // back to the committed block. Since the ancient limit was underflown, everything // needs to be deleted onwards to avoid creating a gap. -func TestLongFastSyncedDeepSetHead(t *testing.T) { testLongFastSyncedDeepSetHead(t, false) } -func TestLongFastSyncedDeepSetHeadWithSnapshots(t *testing.T) { testLongFastSyncedDeepSetHead(t, true) } +func TestLongSnapSyncedDeepSetHead(t *testing.T) { testLongSnapSyncedDeepSetHead(t, false) } +func TestLongSnapSyncedDeepSetHeadWithSnapshots(t *testing.T) { testLongSnapSyncedDeepSetHead(t, true) } -func testLongFastSyncedDeepSetHead(t *testing.T, snapshots bool) { +func testLongSnapSyncedDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // @@ -926,14 +926,14 @@ func testLongFastSyncedDeepSetHead(t *testing.T, snapshots bool) { // sethead was called. In this case we expect the chain to detect that it was fast // syncing and delete everything from the new head, since we can just pick up fast // syncing from there. -func TestLongFastSyncingShallowSetHead(t *testing.T) { - testLongFastSyncingShallowSetHead(t, false) +func TestLongSnapSyncingShallowSetHead(t *testing.T) { + testLongSnapSyncingShallowSetHead(t, false) } -func TestLongFastSyncingShallowSetHeadWithSnapshots(t *testing.T) { - testLongFastSyncingShallowSetHead(t, true) +func TestLongSnapSyncingShallowSetHeadWithSnapshots(t *testing.T) { + testLongSnapSyncingShallowSetHead(t, true) } -func testLongFastSyncingShallowSetHead(t *testing.T, snapshots bool) { +func testLongSnapSyncingShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // @@ -977,14 +977,14 @@ func testLongFastSyncingShallowSetHead(t *testing.T, snapshots bool) { // sethead was called. In this case we expect the chain to detect that it was fast // syncing and delete everything from the new head, since we can just pick up fast // syncing from there. -func TestLongFastSyncingDeepSetHead(t *testing.T) { - testLongFastSyncingDeepSetHead(t, false) +func TestLongSnapSyncingDeepSetHead(t *testing.T) { + testLongSnapSyncingDeepSetHead(t, false) } -func TestLongFastSyncingDeepSetHeadWithSnapshots(t *testing.T) { - testLongFastSyncingDeepSetHead(t, true) +func TestLongSnapSyncingDeepSetHeadWithSnapshots(t *testing.T) { + testLongSnapSyncingDeepSetHead(t, true) } -func testLongFastSyncingDeepSetHead(t *testing.T, snapshots bool) { +func testLongSnapSyncingDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // @@ -1132,14 +1132,14 @@ func testLongOldForkedDeepSetHead(t *testing.T, snapshots bool) { // sethead point should be deleted. In between the committed block and the // requested head the data can remain as "fast sync" data to avoid redownloading // it. The side chain is nuked by the freezer. -func TestLongOldForkedFastSyncedShallowSetHead(t *testing.T) { - testLongOldForkedFastSyncedShallowSetHead(t, false) +func TestLongOldForkedSnapSyncedShallowSetHead(t *testing.T) { + testLongOldForkedSnapSyncedShallowSetHead(t, false) } -func TestLongOldForkedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncedShallowSetHead(t, true) +func TestLongOldForkedSnapSyncedShallowSetHeadWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncedShallowSetHead(t, true) } -func testLongOldForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncedShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3 @@ -1186,14 +1186,14 @@ func testLongOldForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { // full chain to be rolled back to the committed block. Since the ancient limit was // underflown, everything needs to be deleted onwards to avoid creating a gap. The // side chain is nuked by the freezer. -func TestLongOldForkedFastSyncedDeepSetHead(t *testing.T) { - testLongOldForkedFastSyncedDeepSetHead(t, false) +func TestLongOldForkedSnapSyncedDeepSetHead(t *testing.T) { + testLongOldForkedSnapSyncedDeepSetHead(t, false) } -func TestLongOldForkedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncedDeepSetHead(t, true) +func TestLongOldForkedSnapSyncedDeepSetHeadWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncedDeepSetHead(t, true) } -func testLongOldForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncedDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3 @@ -1239,14 +1239,14 @@ func testLongOldForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { // that it was fast syncing and delete everything from the new head, since we can // just pick up fast syncing from there. The side chain is completely nuked by the // freezer. -func TestLongOldForkedFastSyncingShallowSetHead(t *testing.T) { - testLongOldForkedFastSyncingShallowSetHead(t, false) +func TestLongOldForkedSnapSyncingShallowSetHead(t *testing.T) { + testLongOldForkedSnapSyncingShallowSetHead(t, false) } -func TestLongOldForkedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncingShallowSetHead(t, true) +func TestLongOldForkedSnapSyncingShallowSetHeadWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncingShallowSetHead(t, true) } -func testLongOldForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncingShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3 @@ -1293,14 +1293,14 @@ func testLongOldForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) { // that it was fast syncing and delete everything from the new head, since we can // just pick up fast syncing from there. The side chain is completely nuked by the // freezer. -func TestLongOldForkedFastSyncingDeepSetHead(t *testing.T) { - testLongOldForkedFastSyncingDeepSetHead(t, false) +func TestLongOldForkedSnapSyncingDeepSetHead(t *testing.T) { + testLongOldForkedSnapSyncingDeepSetHead(t, false) } -func TestLongOldForkedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) { - testLongOldForkedFastSyncingDeepSetHead(t, true) +func TestLongOldForkedSnapSyncingDeepSetHeadWithSnapshots(t *testing.T) { + testLongOldForkedSnapSyncingDeepSetHead(t, true) } -func testLongOldForkedFastSyncingDeepSetHead(t *testing.T, snapshots bool) { +func testLongOldForkedSnapSyncingDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3 @@ -1446,15 +1446,15 @@ func testLongNewerForkedDeepSetHead(t *testing.T, snapshots bool) { // side chain, where the fast sync pivot point - newer than the ancient limit - // was already committed to disk and then sethead was called. In this test scenario // the side chain is above the committed block. In this case the freezer will delete -// the sidechain since it's dangling, reverting to TestLongFastSyncedShallowSetHead. -func TestLongNewerForkedFastSyncedShallowSetHead(t *testing.T) { - testLongNewerForkedFastSyncedShallowSetHead(t, false) +// the sidechain since it's dangling, reverting to TestLongSnapSyncedShallowSetHead. +func TestLongNewerForkedSnapSyncedShallowSetHead(t *testing.T) { + testLongNewerForkedSnapSyncedShallowSetHead(t, false) } -func TestLongNewerForkedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncedShallowSetHead(t, true) +func TestLongNewerForkedSnapSyncedShallowSetHeadWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncedShallowSetHead(t, true) } -func testLongNewerForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncedShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1498,15 +1498,15 @@ func testLongNewerForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { // side chain, where the fast sync pivot point - older than the ancient limit - // was already committed to disk and then sethead was called. In this test scenario // the side chain is above the committed block. In this case the freezer will delete -// the sidechain since it's dangling, reverting to TestLongFastSyncedDeepSetHead. -func TestLongNewerForkedFastSyncedDeepSetHead(t *testing.T) { - testLongNewerForkedFastSyncedDeepSetHead(t, false) +// the sidechain since it's dangling, reverting to TestLongSnapSyncedDeepSetHead. +func TestLongNewerForkedSnapSyncedDeepSetHead(t *testing.T) { + testLongNewerForkedSnapSyncedDeepSetHead(t, false) } -func TestLongNewerForkedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncedDeepSetHead(t, true) +func TestLongNewerForkedSnapSyncedDeepSetHeadWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncedDeepSetHead(t, true) } -func testLongNewerForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncedDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1549,15 +1549,15 @@ func testLongNewerForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { // side chain, where the fast sync pivot point - newer than the ancient limit - // was not yet committed, but sethead was called. In this test scenario the side // chain is above the committed block. In this case the freezer will delete the -// sidechain since it's dangling, reverting to TestLongFastSyncinghallowSetHead. -func TestLongNewerForkedFastSyncingShallowSetHead(t *testing.T) { - testLongNewerForkedFastSyncingShallowSetHead(t, false) +// sidechain since it's dangling, reverting to TestLongSnapSyncinghallowSetHead. +func TestLongNewerForkedSnapSyncingShallowSetHead(t *testing.T) { + testLongNewerForkedSnapSyncingShallowSetHead(t, false) } -func TestLongNewerForkedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncingShallowSetHead(t, true) +func TestLongNewerForkedSnapSyncingShallowSetHeadWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncingShallowSetHead(t, true) } -func testLongNewerForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncingShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1601,15 +1601,15 @@ func testLongNewerForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) // side chain, where the fast sync pivot point - older than the ancient limit - // was not yet committed, but sethead was called. In this test scenario the side // chain is above the committed block. In this case the freezer will delete the -// sidechain since it's dangling, reverting to TestLongFastSyncingDeepSetHead. -func TestLongNewerForkedFastSyncingDeepSetHead(t *testing.T) { - testLongNewerForkedFastSyncingDeepSetHead(t, false) +// sidechain since it's dangling, reverting to TestLongSnapSyncingDeepSetHead. +func TestLongNewerForkedSnapSyncingDeepSetHead(t *testing.T) { + testLongNewerForkedSnapSyncingDeepSetHead(t, false) } -func TestLongNewerForkedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) { - testLongNewerForkedFastSyncingDeepSetHead(t, true) +func TestLongNewerForkedSnapSyncingDeepSetHeadWithSnapshots(t *testing.T) { + testLongNewerForkedSnapSyncingDeepSetHead(t, true) } -func testLongNewerForkedFastSyncingDeepSetHead(t *testing.T, snapshots bool) { +func testLongNewerForkedSnapSyncingDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12 @@ -1745,15 +1745,15 @@ func testLongReorgedDeepSetHead(t *testing.T, snapshots bool) { // side chain, where the fast sync pivot point - newer than the ancient limit - // was already committed to disk and then sethead was called. In this case the // freezer will delete the sidechain since it's dangling, reverting to -// TestLongFastSyncedShallowSetHead. -func TestLongReorgedFastSyncedShallowSetHead(t *testing.T) { - testLongReorgedFastSyncedShallowSetHead(t, false) +// TestLongSnapSyncedShallowSetHead. +func TestLongReorgedSnapSyncedShallowSetHead(t *testing.T) { + testLongReorgedSnapSyncedShallowSetHead(t, false) } -func TestLongReorgedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) { - testLongReorgedFastSyncedShallowSetHead(t, true) +func TestLongReorgedSnapSyncedShallowSetHeadWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncedShallowSetHead(t, true) } -func testLongReorgedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncedShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1797,15 +1797,15 @@ func testLongReorgedFastSyncedShallowSetHead(t *testing.T, snapshots bool) { // side chain, where the fast sync pivot point - older than the ancient limit - // was already committed to disk and then sethead was called. In this case the // freezer will delete the sidechain since it's dangling, reverting to -// TestLongFastSyncedDeepSetHead. -func TestLongReorgedFastSyncedDeepSetHead(t *testing.T) { - testLongReorgedFastSyncedDeepSetHead(t, false) +// TestLongSnapSyncedDeepSetHead. +func TestLongReorgedSnapSyncedDeepSetHead(t *testing.T) { + testLongReorgedSnapSyncedDeepSetHead(t, false) } -func TestLongReorgedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) { - testLongReorgedFastSyncedDeepSetHead(t, true) +func TestLongReorgedSnapSyncedDeepSetHeadWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncedDeepSetHead(t, true) } -func testLongReorgedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncedDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1850,14 +1850,14 @@ func testLongReorgedFastSyncedDeepSetHead(t *testing.T, snapshots bool) { // chain to detect that it was fast syncing and delete everything from the new // head, since we can just pick up fast syncing from there. The side chain is // completely nuked by the freezer. -func TestLongReorgedFastSyncingShallowSetHead(t *testing.T) { - testLongReorgedFastSyncingShallowSetHead(t, false) +func TestLongReorgedSnapSyncingShallowSetHead(t *testing.T) { + testLongReorgedSnapSyncingShallowSetHead(t, false) } -func TestLongReorgedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) { - testLongReorgedFastSyncingShallowSetHead(t, true) +func TestLongReorgedSnapSyncingShallowSetHeadWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncingShallowSetHead(t, true) } -func testLongReorgedFastSyncingShallowSetHead(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncingShallowSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 @@ -1903,14 +1903,14 @@ func testLongReorgedFastSyncingShallowSetHead(t *testing.T, snapshots bool) { // chain to detect that it was fast syncing and delete everything from the new // head, since we can just pick up fast syncing from there. The side chain is // completely nuked by the freezer. -func TestLongReorgedFastSyncingDeepSetHead(t *testing.T) { - testLongReorgedFastSyncingDeepSetHead(t, false) +func TestLongReorgedSnapSyncingDeepSetHead(t *testing.T) { + testLongReorgedSnapSyncingDeepSetHead(t, false) } -func TestLongReorgedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) { - testLongReorgedFastSyncingDeepSetHead(t, true) +func TestLongReorgedSnapSyncingDeepSetHeadWithSnapshots(t *testing.T) { + testLongReorgedSnapSyncingDeepSetHead(t, true) } -func testLongReorgedFastSyncingDeepSetHead(t *testing.T, snapshots bool) { +func testLongReorgedSnapSyncingDeepSetHead(t *testing.T, snapshots bool) { // Chain: // G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD) // └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26 diff --git a/core/blockchain_test.go b/core/blockchain_test.go index 0530496ec..6e542fe2f 100644 --- a/core/blockchain_test.go +++ b/core/blockchain_test.go @@ -2637,7 +2637,7 @@ func TestTransactionIndices(t *testing.T) { } } -func TestSkipStaleTxIndicesInFastSync(t *testing.T) { +func TestSkipStaleTxIndicesInSnapSync(t *testing.T) { // Configure and generate a sample block chain var ( gendb = rawdb.NewMemoryDatabase() diff --git a/core/chain_makers.go b/core/chain_makers.go index e1d9e6f78..c7bf60a4b 100644 --- a/core/chain_makers.go +++ b/core/chain_makers.go @@ -155,6 +155,28 @@ func (b *BlockGen) TxNonce(addr common.Address) uint64 { // AddUncle adds an uncle header to the generated block. func (b *BlockGen) AddUncle(h *types.Header) { + // The uncle will have the same timestamp and auto-generated difficulty + h.Time = b.header.Time + + var parent *types.Header + for i := b.i - 1; i >= 0; i-- { + if b.chain[i].Hash() == h.ParentHash { + parent = b.chain[i].Header() + break + } + } + chainreader := &fakeChainReader{config: b.config} + h.Difficulty = b.engine.CalcDifficulty(chainreader, b.header.Time, parent) + + // The gas limit and price should be derived from the parent + h.GasLimit = parent.GasLimit + if b.config.IsLondon(h.Number) { + h.BaseFee = misc.CalcBaseFee(b.config, parent) + if !b.config.IsLondon(parent.Number) { + parentGasLimit := parent.GasLimit * params.ElasticityMultiplier + h.GasLimit = CalcGasLimit(parentGasLimit, parentGasLimit) + } + } b.uncles = append(b.uncles, h) } diff --git a/core/rawdb/accessors_chain.go b/core/rawdb/accessors_chain.go index 4028191b7..82d3f5c0c 100644 --- a/core/rawdb/accessors_chain.go +++ b/core/rawdb/accessors_chain.go @@ -242,24 +242,6 @@ func WriteLastPivotNumber(db ethdb.KeyValueWriter, pivot uint64) { } } -// ReadFastTrieProgress retrieves the number of tries nodes fast synced to allow -// reporting correct numbers across restarts. -func ReadFastTrieProgress(db ethdb.KeyValueReader) uint64 { - data, _ := db.Get(fastTrieProgressKey) - if len(data) == 0 { - return 0 - } - return new(big.Int).SetBytes(data).Uint64() -} - -// WriteFastTrieProgress stores the fast sync trie process counter to support -// retrieving it across restarts. -func WriteFastTrieProgress(db ethdb.KeyValueWriter, count uint64) { - if err := db.Put(fastTrieProgressKey, new(big.Int).SetUint64(count).Bytes()); err != nil { - log.Crit("Failed to store fast sync trie progress", "err", err) - } -} - // ReadTxIndexTail retrieves the number of oldest indexed block // whose transaction indices has been indexed. If the corresponding entry // is non-existent in database it means the indexing has been finished. diff --git a/core/rawdb/accessors_snapshot.go b/core/rawdb/accessors_snapshot.go index df140de0c..1c828662c 100644 --- a/core/rawdb/accessors_snapshot.go +++ b/core/rawdb/accessors_snapshot.go @@ -208,11 +208,3 @@ func WriteSnapshotSyncStatus(db ethdb.KeyValueWriter, status []byte) { log.Crit("Failed to store snapshot sync status", "err", err) } } - -// DeleteSnapshotSyncStatus deletes the serialized sync status saved at the last -// shutdown -func DeleteSnapshotSyncStatus(db ethdb.KeyValueWriter) { - if err := db.Delete(snapshotSyncStatusKey); err != nil { - log.Crit("Failed to remove snapshot sync status", "err", err) - } -} diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go index dcdd739c7..95b90d3b5 100644 --- a/eth/downloader/downloader.go +++ b/eth/downloader/downloader.go @@ -35,7 +35,6 @@ import ( "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/metrics" "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/trie" ) @@ -45,7 +44,6 @@ var ( MaxHeaderFetch = 192 // Amount of block headers to be fetched per retrieval request MaxSkeletonSize = 128 // Number of header fetches to need for a skeleton assembly MaxReceiptFetch = 256 // Amount of transaction receipts to allow fetching per request - MaxStateFetch = 384 // Amount of node state values to allow fetching per request maxQueuedHeaders = 32 * 1024 // [eth/62] Maximum number of headers to queue for import (DOS protection) maxHeadersProcess = 2048 // Number of header download results to import at once into the chain @@ -56,11 +54,11 @@ var ( reorgProtThreshold = 48 // Threshold number of recent blocks to disable mini reorg protection reorgProtHeaderDelay = 2 // Number of headers to delay delivering to cover mini reorgs - fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during fast sync + fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during snap sync fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected fsHeaderForceVerify = 24 // Number of headers to verify before and after the pivot to accept it fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download - fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in fast sync + fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in snap sync ) var ( @@ -80,27 +78,28 @@ var ( errCancelStateFetch = errors.New("state data download canceled (requested)") errCancelContentProcessing = errors.New("content processing canceled (requested)") errCanceled = errors.New("syncing canceled (requested)") - errNoSyncActive = errors.New("no sync active") errTooOld = errors.New("peer's protocol version too old") errNoAncestorFound = errors.New("no common ancestor found") ) +// peerDropFn is a callback type for dropping a peer detected as malicious. +type peerDropFn func(id string) + type Downloader struct { mode uint32 // Synchronisation mode defining the strategy used (per sync cycle), use d.getMode() to get the SyncMode mux *event.TypeMux // Event multiplexer to announce sync operation events - checkpoint uint64 // Checkpoint block number to enforce head against (e.g. fast sync) + checkpoint uint64 // Checkpoint block number to enforce head against (e.g. snap sync) genesis uint64 // Genesis block number to limit sync to (e.g. light client CHT) queue *queue // Scheduler for selecting the hashes to download peers *peerSet // Set of active peers from which download can proceed stateDB ethdb.Database // Database to state sync into (and deduplicate via) - stateBloom *trie.SyncBloom // Bloom filter for fast trie node and contract code existence checks + stateBloom *trie.SyncBloom // Bloom filter for snap trie node and contract code existence checks // Statistics - syncStatsChainOrigin uint64 // Origin block number where syncing started at - syncStatsChainHeight uint64 // Highest block number known when syncing started - syncStatsState stateSyncStats + syncStatsChainOrigin uint64 // Origin block number where syncing started at + syncStatsChainHeight uint64 // Highest block number known when syncing started syncStatsLock sync.RWMutex // Lock protecting the sync stats fields lightchain LightChain @@ -117,12 +116,7 @@ type Downloader struct { ancientLimit uint64 // The maximum block number which can be regarded as ancient data. // Channels - headerCh chan dataPack // Channel receiving inbound block headers - bodyCh chan dataPack // Channel receiving inbound block bodies - receiptCh chan dataPack // Channel receiving inbound receipts - bodyWakeCh chan bool // Channel to signal the block body fetcher of new tasks - receiptWakeCh chan bool // Channel to signal the receipt fetcher of new tasks - headerProcCh chan []*types.Header // Channel to feed the header processor new tasks + headerProcCh chan []*types.Header // Channel to feed the header processor new tasks // State sync pivotHeader *types.Header // Pivot block header to dynamically push the syncing state root @@ -131,8 +125,6 @@ type Downloader struct { snapSync bool // Whether to run state sync over the snap protocol SnapSyncer *snap.Syncer // TODO(karalabe): make private! hack for now stateSyncStart chan *stateSync - trackStateReq chan *stateReq - stateCh chan dataPack // Channel receiving inbound node state data // Cancellation and termination cancelPeer string // Identifier of the peer currently being used as the master (cancel on drop) @@ -171,14 +163,14 @@ type LightChain interface { SetHead(uint64) error } -// BlockChain encapsulates functions required to sync a (full or fast) blockchain. +// BlockChain encapsulates functions required to sync a (full or snap) blockchain. type BlockChain interface { LightChain // HasBlock verifies a block's presence in the local chain. HasBlock(common.Hash, uint64) bool - // HasFastBlock verifies a fast block's presence in the local chain. + // HasFastBlock verifies a snap block's presence in the local chain. HasFastBlock(common.Hash, uint64) bool // GetBlockByHash retrieves a block from the local chain. @@ -187,11 +179,11 @@ type BlockChain interface { // CurrentBlock retrieves the head block from the local chain. CurrentBlock() *types.Block - // CurrentFastBlock retrieves the head fast block from the local chain. + // CurrentFastBlock retrieves the head snap block from the local chain. CurrentFastBlock() *types.Block - // FastSyncCommitHead directly commits the head block to a certain entity. - FastSyncCommitHead(common.Hash) error + // SnapSyncCommitHead directly commits the head block to a certain entity. + SnapSyncCommitHead(common.Hash) error // InsertChain inserts a batch of blocks into the local chain. InsertChain(types.Blocks) (int, error) @@ -218,20 +210,10 @@ func New(checkpoint uint64, stateDb ethdb.Database, stateBloom *trie.SyncBloom, blockchain: chain, lightchain: lightchain, dropPeer: dropPeer, - headerCh: make(chan dataPack, 1), - bodyCh: make(chan dataPack, 1), - receiptCh: make(chan dataPack, 1), - bodyWakeCh: make(chan bool, 1), - receiptWakeCh: make(chan bool, 1), headerProcCh: make(chan []*types.Header, 1), quitCh: make(chan struct{}), - stateCh: make(chan dataPack), SnapSyncer: snap.NewSyncer(stateDb), stateSyncStart: make(chan *stateSync), - syncStatsState: stateSyncStats{ - processed: rawdb.ReadFastTrieProgress(stateDb), - }, - trackStateReq: make(chan *stateReq), } go dl.stateFetcher() return dl @@ -241,7 +223,7 @@ func New(checkpoint uint64, stateDb ethdb.Database, stateBloom *trie.SyncBloom, // block where synchronisation started at (may have failed/suspended); the block // or header sync is currently at; and the latest known block which the sync targets. // -// In addition, during the state download phase of fast synchronisation the number +// In addition, during the state download phase of snap synchronisation the number // of processed and the total number of known states are also returned. Otherwise // these are zero. func (d *Downloader) Progress() ethereum.SyncProgress { @@ -254,19 +236,31 @@ func (d *Downloader) Progress() ethereum.SyncProgress { switch { case d.blockchain != nil && mode == FullSync: current = d.blockchain.CurrentBlock().NumberU64() - case d.blockchain != nil && mode == FastSync: + case d.blockchain != nil && mode == SnapSync: current = d.blockchain.CurrentFastBlock().NumberU64() case d.lightchain != nil: current = d.lightchain.CurrentHeader().Number.Uint64() default: log.Error("Unknown downloader chain/mode combo", "light", d.lightchain != nil, "full", d.blockchain != nil, "mode", mode) } + progress, pending := d.SnapSyncer.Progress() + return ethereum.SyncProgress{ - StartingBlock: d.syncStatsChainOrigin, - CurrentBlock: current, - HighestBlock: d.syncStatsChainHeight, - PulledStates: d.syncStatsState.processed, - KnownStates: d.syncStatsState.processed + d.syncStatsState.pending, + StartingBlock: d.syncStatsChainOrigin, + CurrentBlock: current, + HighestBlock: d.syncStatsChainHeight, + SyncedAccounts: progress.AccountSynced, + SyncedAccountBytes: uint64(progress.AccountBytes), + SyncedBytecodes: progress.BytecodeSynced, + SyncedBytecodeBytes: uint64(progress.BytecodeBytes), + SyncedStorage: progress.StorageSynced, + SyncedStorageBytes: uint64(progress.StorageBytes), + HealedTrienodes: progress.TrienodeHealSynced, + HealedTrienodeBytes: uint64(progress.TrienodeHealBytes), + HealedBytecodes: progress.BytecodeHealSynced, + HealedBytecodeBytes: uint64(progress.BytecodeHealBytes), + HealingTrienodes: pending.TrienodeHeal, + HealingBytecode: pending.BytecodeHeal, } } @@ -364,47 +358,33 @@ func (d *Downloader) synchronise(id string, hash common.Hash, td *big.Int, mode if atomic.CompareAndSwapInt32(&d.notified, 0, 1) { log.Info("Block synchronisation started") } - // If we are already full syncing, but have a fast-sync bloom filter laying + // If we are already full syncing, but have a snap-sync bloom filter laying // around, make sure it doesn't use memory any more. This is a special case - // when the user attempts to fast sync a new empty network. + // when the user attempts to snap sync a new empty network. if mode == FullSync && d.stateBloom != nil { d.stateBloom.Close() } - // If snap sync was requested, create the snap scheduler and switch to fast - // sync mode. Long term we could drop fast sync or merge the two together, + // If snap sync was requested, create the snap scheduler and switch to snap + // sync mode. Long term we could drop snap sync or merge the two together, // but until snap becomes prevalent, we should support both. TODO(karalabe). if mode == SnapSync { - if !d.snapSync { - // Snap sync uses the snapshot namespace to store potentially flakey data until - // sync completely heals and finishes. Pause snapshot maintenance in the mean - // time to prevent access. - if snapshots := d.blockchain.Snapshots(); snapshots != nil { // Only nil in tests - snapshots.Disable() - } - log.Warn("Enabling snapshot sync prototype") - d.snapSync = true + // Snap sync uses the snapshot namespace to store potentially flakey data until + // sync completely heals and finishes. Pause snapshot maintenance in the mean- + // time to prevent access. + if snapshots := d.blockchain.Snapshots(); snapshots != nil { // Only nil in tests + snapshots.Disable() } - mode = FastSync } // Reset the queue, peer set and wake channels to clean any internal leftover state d.queue.Reset(blockCacheMaxItems, blockCacheInitialItems) d.peers.Reset() - for _, ch := range []chan bool{d.bodyWakeCh, d.receiptWakeCh} { + for _, ch := range []chan bool{d.queue.blockWakeCh, d.queue.receiptWakeCh} { select { case <-ch: default: } } - for _, ch := range []chan dataPack{d.headerCh, d.bodyCh, d.receiptCh} { - for empty := false; !empty; { - select { - case <-ch: - default: - empty = true - } - } - } for empty := false; !empty; { select { case <-d.headerProcCh: @@ -463,9 +443,9 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I if err != nil { return err } - if mode == FastSync && pivot == nil { + if mode == SnapSync && pivot == nil { // If no pivot block was returned, the head is below the min full block - // threshold (i.e. new chain). In that case we won't really fast sync + // threshold (i.e. new chain). In that case we won't really snap sync // anyway, but still need a valid pivot block to avoid some code hitting // nil panics on an access. pivot = d.blockchain.CurrentBlock().Header() @@ -483,8 +463,8 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I d.syncStatsChainHeight = height d.syncStatsLock.Unlock() - // Ensure our origin point is below any fast sync pivot point - if mode == FastSync { + // Ensure our origin point is below any snap sync pivot point + if mode == SnapSync { if height <= uint64(fsMinFullBlocks) { origin = 0 } else { @@ -493,17 +473,17 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I origin = pivotNumber - 1 } // Write out the pivot into the database so a rollback beyond it will - // reenable fast sync + // reenable snap sync rawdb.WriteLastPivotNumber(d.stateDB, pivotNumber) } } d.committed = 1 - if mode == FastSync && pivot.Number.Uint64() != 0 { + if mode == SnapSync && pivot.Number.Uint64() != 0 { d.committed = 0 } - if mode == FastSync { + if mode == SnapSync { // Set the ancient data limitation. - // If we are running fast sync, all block data older than ancientLimit will be + // If we are running snap sync, all block data older than ancientLimit will be // written to the ancient store. More recent data will be written to the active // database and will wait for the freezer to migrate. // @@ -546,17 +526,17 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I d.syncInitHook(origin, height) } fetchers := []func() error{ - func() error { return d.fetchHeaders(p, origin+1) }, // Headers are always retrieved - func() error { return d.fetchBodies(origin + 1) }, // Bodies are retrieved during normal and fast sync - func() error { return d.fetchReceipts(origin + 1) }, // Receipts are retrieved during fast sync + func() error { return d.fetchHeaders(p, origin+1, latest.Number.Uint64()) }, // Headers are always retrieved + func() error { return d.fetchBodies(origin + 1) }, // Bodies are retrieved during normal and snap sync + func() error { return d.fetchReceipts(origin + 1) }, // Receipts are retrieved during snap sync func() error { return d.processHeaders(origin+1, td) }, } - if mode == FastSync { + if mode == SnapSync { d.pivotLock.Lock() d.pivotHeader = pivot d.pivotLock.Unlock() - fetchers = append(fetchers, func() error { return d.processFastSyncContent() }) + fetchers = append(fetchers, func() error { return d.processSnapSyncContent() }) } else if mode == FullSync { fetchers = append(fetchers, d.processFullSyncContent) } @@ -643,60 +623,38 @@ func (d *Downloader) fetchHead(p *peerConnection) (head *types.Header, pivot *ty // Request the advertised remote head block and wait for the response latest, _ := p.peer.Head() fetch := 1 - if mode == FastSync { + if mode == SnapSync { fetch = 2 // head + pivot headers } - go p.peer.RequestHeadersByHash(latest, fetch, fsMinFullBlocks-1, true) - - ttl := d.peers.rates.TargetTimeout() - timeout := time.After(ttl) - for { - select { - case <-d.cancelCh: - return nil, nil, errCanceled - - case packet := <-d.headerCh: - // Discard anything not from the origin peer - if packet.PeerId() != p.id { - log.Debug("Received headers from incorrect peer", "peer", packet.PeerId()) - break - } - // Make sure the peer gave us at least one and at most the requested headers - headers := packet.(*headerPack).headers - if len(headers) == 0 || len(headers) > fetch { - return nil, nil, fmt.Errorf("%w: returned headers %d != requested %d", errBadPeer, len(headers), fetch) - } - // The first header needs to be the head, validate against the checkpoint - // and request. If only 1 header was returned, make sure there's no pivot - // or there was not one requested. - head := headers[0] - if (mode == FastSync || mode == LightSync) && head.Number.Uint64() < d.checkpoint { - return nil, nil, fmt.Errorf("%w: remote head %d below checkpoint %d", errUnsyncedPeer, head.Number, d.checkpoint) - } - if len(headers) == 1 { - if mode == FastSync && head.Number.Uint64() > uint64(fsMinFullBlocks) { - return nil, nil, fmt.Errorf("%w: no pivot included along head header", errBadPeer) - } - p.log.Debug("Remote head identified, no pivot", "number", head.Number, "hash", head.Hash()) - return head, nil, nil - } - // At this point we have 2 headers in total and the first is the - // validated head of the chain. Check the pivot number and return, - pivot := headers[1] - if pivot.Number.Uint64() != head.Number.Uint64()-uint64(fsMinFullBlocks) { - return nil, nil, fmt.Errorf("%w: remote pivot %d != requested %d", errInvalidChain, pivot.Number, head.Number.Uint64()-uint64(fsMinFullBlocks)) - } - return head, pivot, nil - - case <-timeout: - p.log.Debug("Waiting for head header timed out", "elapsed", ttl) - return nil, nil, errTimeout - - case <-d.bodyCh: - case <-d.receiptCh: - // Out of bounds delivery, ignore - } + headers, err := d.fetchHeadersByHash(p, latest, fetch, fsMinFullBlocks-1, true) + if err != nil { + return nil, nil, err } + // Make sure the peer gave us at least one and at most the requested headers + if len(headers) == 0 || len(headers) > fetch { + return nil, nil, fmt.Errorf("%w: returned headers %d != requested %d", errBadPeer, len(headers), fetch) + } + // The first header needs to be the head, validate against the checkpoint + // and request. If only 1 header was returned, make sure there's no pivot + // or there was not one requested. + head = headers[0] + if (mode == SnapSync || mode == LightSync) && head.Number.Uint64() < d.checkpoint { + return nil, nil, fmt.Errorf("%w: remote head %d below checkpoint %d", errUnsyncedPeer, head.Number, d.checkpoint) + } + if len(headers) == 1 { + if mode == SnapSync && head.Number.Uint64() > uint64(fsMinFullBlocks) { + return nil, nil, fmt.Errorf("%w: no pivot included along head header", errBadPeer) + } + p.log.Debug("Remote head identified, no pivot", "number", head.Number, "hash", head.Hash()) + return head, nil, nil + } + // At this point we have 2 headers in total and the first is the + // validated head of the chain. Check the pivot number and return, + pivot = headers[1] + if pivot.Number.Uint64() != head.Number.Uint64()-uint64(fsMinFullBlocks) { + return nil, nil, fmt.Errorf("%w: remote pivot %d != requested %d", errInvalidChain, pivot.Number, head.Number.Uint64()-uint64(fsMinFullBlocks)) + } + return head, pivot, nil } // calculateRequestSpan calculates what headers to request from a peer when trying to determine the @@ -767,7 +725,7 @@ func (d *Downloader) findAncestor(p *peerConnection, remoteHeader *types.Header) switch mode { case FullSync: localHeight = d.blockchain.CurrentBlock().NumberU64() - case FastSync: + case SnapSync: localHeight = d.blockchain.CurrentFastBlock().NumberU64() default: localHeight = d.lightchain.CurrentHeader().Number.Uint64() @@ -822,76 +780,52 @@ func (d *Downloader) findAncestor(p *peerConnection, remoteHeader *types.Header) return ancestor, nil } -func (d *Downloader) findAncestorSpanSearch(p *peerConnection, mode SyncMode, remoteHeight, localHeight uint64, floor int64) (commonAncestor uint64, err error) { +func (d *Downloader) findAncestorSpanSearch(p *peerConnection, mode SyncMode, remoteHeight, localHeight uint64, floor int64) (uint64, error) { from, count, skip, max := calculateRequestSpan(remoteHeight, localHeight) p.log.Trace("Span searching for common ancestor", "count", count, "from", from, "skip", skip) - go p.peer.RequestHeadersByNumber(uint64(from), count, skip, false) - + headers, err := d.fetchHeadersByNumber(p, uint64(from), count, skip, false) + if err != nil { + return 0, err + } // Wait for the remote response to the head fetch number, hash := uint64(0), common.Hash{} - ttl := d.peers.rates.TargetTimeout() - timeout := time.After(ttl) + // Make sure the peer actually gave something valid + if len(headers) == 0 { + p.log.Warn("Empty head header set") + return 0, errEmptyHeaderSet + } + // Make sure the peer's reply conforms to the request + for i, header := range headers { + expectNumber := from + int64(i)*int64(skip+1) + if number := header.Number.Int64(); number != expectNumber { + p.log.Warn("Head headers broke chain ordering", "index", i, "requested", expectNumber, "received", number) + return 0, fmt.Errorf("%w: %v", errInvalidChain, errors.New("head headers broke chain ordering")) + } + } + // Check if a common ancestor was found + for i := len(headers) - 1; i >= 0; i-- { + // Skip any headers that underflow/overflow our requested set + if headers[i].Number.Int64() < from || headers[i].Number.Uint64() > max { + continue + } + // Otherwise check if we already know the header or not + h := headers[i].Hash() + n := headers[i].Number.Uint64() - for finished := false; !finished; { - select { - case <-d.cancelCh: - return 0, errCanceled - - case packet := <-d.headerCh: - // Discard anything not from the origin peer - if packet.PeerId() != p.id { - log.Debug("Received headers from incorrect peer", "peer", packet.PeerId()) - break - } - // Make sure the peer actually gave something valid - headers := packet.(*headerPack).headers - if len(headers) == 0 { - p.log.Warn("Empty head header set") - return 0, errEmptyHeaderSet - } - // Make sure the peer's reply conforms to the request - for i, header := range headers { - expectNumber := from + int64(i)*int64(skip+1) - if number := header.Number.Int64(); number != expectNumber { - p.log.Warn("Head headers broke chain ordering", "index", i, "requested", expectNumber, "received", number) - return 0, fmt.Errorf("%w: %v", errInvalidChain, errors.New("head headers broke chain ordering")) - } - } - // Check if a common ancestor was found - finished = true - for i := len(headers) - 1; i >= 0; i-- { - // Skip any headers that underflow/overflow our requested set - if headers[i].Number.Int64() < from || headers[i].Number.Uint64() > max { - continue - } - // Otherwise check if we already know the header or not - h := headers[i].Hash() - n := headers[i].Number.Uint64() - - var known bool - switch mode { - case FullSync: - known = d.blockchain.HasBlock(h, n) - case FastSync: - known = d.blockchain.HasFastBlock(h, n) - default: - known = d.lightchain.HasHeader(h, n) - } - if known { - number, hash = n, h - break - } - } - - case <-timeout: - p.log.Debug("Waiting for head header timed out", "elapsed", ttl) - return 0, errTimeout - - case <-d.bodyCh: - case <-d.receiptCh: - // Out of bounds delivery, ignore + var known bool + switch mode { + case FullSync: + known = d.blockchain.HasBlock(h, n) + case SnapSync: + known = d.blockchain.HasFastBlock(h, n) + default: + known = d.lightchain.HasHeader(h, n) + } + if known { + number, hash = n, h + break } } // If the head fetch already found an ancestor, return @@ -906,7 +840,7 @@ func (d *Downloader) findAncestorSpanSearch(p *peerConnection, mode SyncMode, re return 0, errNoAncestorFound } -func (d *Downloader) findAncestorBinarySearch(p *peerConnection, mode SyncMode, remoteHeight uint64, floor int64) (commonAncestor uint64, err error) { +func (d *Downloader) findAncestorBinarySearch(p *peerConnection, mode SyncMode, remoteHeight uint64, floor int64) (uint64, error) { hash := common.Hash{} // Ancestor not found, we need to binary search over our chain @@ -920,65 +854,39 @@ func (d *Downloader) findAncestorBinarySearch(p *peerConnection, mode SyncMode, // Split our chain interval in two, and request the hash to cross check check := (start + end) / 2 - ttl := d.peers.rates.TargetTimeout() - timeout := time.After(ttl) - - go p.peer.RequestHeadersByNumber(check, 1, 0, false) - - // Wait until a reply arrives to this request - for arrived := false; !arrived; { - select { - case <-d.cancelCh: - return 0, errCanceled - - case packet := <-d.headerCh: - // Discard anything not from the origin peer - if packet.PeerId() != p.id { - log.Debug("Received headers from incorrect peer", "peer", packet.PeerId()) - break - } - // Make sure the peer actually gave something valid - headers := packet.(*headerPack).headers - if len(headers) != 1 { - p.log.Warn("Multiple headers for single request", "headers", len(headers)) - return 0, fmt.Errorf("%w: multiple headers (%d) for single request", errBadPeer, len(headers)) - } - arrived = true - - // Modify the search interval based on the response - h := headers[0].Hash() - n := headers[0].Number.Uint64() - - var known bool - switch mode { - case FullSync: - known = d.blockchain.HasBlock(h, n) - case FastSync: - known = d.blockchain.HasFastBlock(h, n) - default: - known = d.lightchain.HasHeader(h, n) - } - if !known { - end = check - break - } - header := d.lightchain.GetHeaderByHash(h) // Independent of sync mode, header surely exists - if header.Number.Uint64() != check { - p.log.Warn("Received non requested header", "number", header.Number, "hash", header.Hash(), "request", check) - return 0, fmt.Errorf("%w: non-requested header (%d)", errBadPeer, header.Number) - } - start = check - hash = h - - case <-timeout: - p.log.Debug("Waiting for search header timed out", "elapsed", ttl) - return 0, errTimeout - - case <-d.bodyCh: - case <-d.receiptCh: - // Out of bounds delivery, ignore - } + headers, err := d.fetchHeadersByNumber(p, check, 1, 0, false) + if err != nil { + return 0, err } + // Make sure the peer actually gave something valid + if len(headers) != 1 { + p.log.Warn("Multiple headers for single request", "headers", len(headers)) + return 0, fmt.Errorf("%w: multiple headers (%d) for single request", errBadPeer, len(headers)) + } + // Modify the search interval based on the response + h := headers[0].Hash() + n := headers[0].Number.Uint64() + + var known bool + switch mode { + case FullSync: + known = d.blockchain.HasBlock(h, n) + case SnapSync: + known = d.blockchain.HasFastBlock(h, n) + default: + known = d.lightchain.HasHeader(h, n) + } + if !known { + end = check + continue + } + header := d.lightchain.GetHeaderByHash(h) // Independent of sync mode, header surely exists + if header.Number.Uint64() != check { + p.log.Warn("Received non requested header", "number", header.Number, "hash", header.Hash(), "request", check) + return 0, fmt.Errorf("%w: non-requested header (%d)", errBadPeer, header.Number) + } + start = check + hash = h } // Ensure valid ancestry and return if int64(start) <= floor { @@ -997,217 +905,58 @@ func (d *Downloader) findAncestorBinarySearch(p *peerConnection, mode SyncMode, // other peers are only accepted if they map cleanly to the skeleton. If no one // can fill in the skeleton - not even the origin peer - it's assumed invalid and // the origin is dropped. -func (d *Downloader) fetchHeaders(p *peerConnection, from uint64) error { +func (d *Downloader) fetchHeaders(p *peerConnection, from uint64, head uint64) error { p.log.Debug("Directing header downloads", "origin", from) defer p.log.Debug("Header download terminated") - // Create a timeout timer, and the associated header fetcher - skeleton := true // Skeleton assembly phase or finishing up - pivoting := false // Whether the next request is pivot verification - request := time.Now() // time of the last skeleton fetch request - timeout := time.NewTimer(0) // timer to dump a non-responsive active peer - <-timeout.C // timeout channel should be initially empty - defer timeout.Stop() - - var ttl time.Duration - getHeaders := func(from uint64) { - request = time.Now() - - ttl = d.peers.rates.TargetTimeout() - timeout.Reset(ttl) - - if skeleton { - p.log.Trace("Fetching skeleton headers", "count", MaxHeaderFetch, "from", from) - go p.peer.RequestHeadersByNumber(from+uint64(MaxHeaderFetch)-1, MaxSkeletonSize, MaxHeaderFetch-1, false) - } else { - p.log.Trace("Fetching full headers", "count", MaxHeaderFetch, "from", from) - go p.peer.RequestHeadersByNumber(from, MaxHeaderFetch, 0, false) - } - } - getNextPivot := func() { - pivoting = true - request = time.Now() - - ttl = d.peers.rates.TargetTimeout() - timeout.Reset(ttl) - - d.pivotLock.RLock() - pivot := d.pivotHeader.Number.Uint64() - d.pivotLock.RUnlock() - - p.log.Trace("Fetching next pivot header", "number", pivot+uint64(fsMinFullBlocks)) - go p.peer.RequestHeadersByNumber(pivot+uint64(fsMinFullBlocks), 2, fsMinFullBlocks-9, false) // move +64 when it's 2x64-8 deep - } // Start pulling the header chain skeleton until all is done - ancestor := from - getHeaders(from) - - mode := d.getMode() + var ( + skeleton = true // Skeleton assembly phase or finishing up + pivoting = false // Whether the next request is pivot verification + ancestor = from + mode = d.getMode() + ) for { - select { - case <-d.cancelCh: - return errCanceled - - case packet := <-d.headerCh: - // Make sure the active peer is giving us the skeleton headers - if packet.PeerId() != p.id { - log.Debug("Received skeleton from incorrect peer", "peer", packet.PeerId()) - break - } - headerReqTimer.UpdateSince(request) - timeout.Stop() - - // If the pivot is being checked, move if it became stale and run the real retrieval - var pivot uint64 - + // Pull the next batch of headers, it either: + // - Pivot check to see if the chain moved too far + // - Skeleton retrieval to permit concurrent header fetches + // - Full header retrieval if we're near the chain head + var ( + headers []*types.Header + err error + ) + switch { + case pivoting: d.pivotLock.RLock() - if d.pivotHeader != nil { - pivot = d.pivotHeader.Number.Uint64() - } + pivot := d.pivotHeader.Number.Uint64() d.pivotLock.RUnlock() - if pivoting { - if packet.Items() == 2 { - // Retrieve the headers and do some sanity checks, just in case - headers := packet.(*headerPack).headers + p.log.Trace("Fetching next pivot header", "number", pivot+uint64(fsMinFullBlocks)) + headers, err = d.fetchHeadersByNumber(p, pivot+uint64(fsMinFullBlocks), 2, fsMinFullBlocks-9, false) // move +64 when it's 2x64-8 deep - if have, want := headers[0].Number.Uint64(), pivot+uint64(fsMinFullBlocks); have != want { - log.Warn("Peer sent invalid next pivot", "have", have, "want", want) - return fmt.Errorf("%w: next pivot number %d != requested %d", errInvalidChain, have, want) - } - if have, want := headers[1].Number.Uint64(), pivot+2*uint64(fsMinFullBlocks)-8; have != want { - log.Warn("Peer sent invalid pivot confirmer", "have", have, "want", want) - return fmt.Errorf("%w: next pivot confirmer number %d != requested %d", errInvalidChain, have, want) - } - log.Warn("Pivot seemingly stale, moving", "old", pivot, "new", headers[0].Number) - pivot = headers[0].Number.Uint64() + case skeleton: + p.log.Trace("Fetching skeleton headers", "count", MaxHeaderFetch, "from", from) + headers, err = d.fetchHeadersByNumber(p, from+uint64(MaxHeaderFetch)-1, MaxSkeletonSize, MaxHeaderFetch-1, false) - d.pivotLock.Lock() - d.pivotHeader = headers[0] - d.pivotLock.Unlock() + default: + p.log.Trace("Fetching full headers", "count", MaxHeaderFetch, "from", from) + headers, err = d.fetchHeadersByNumber(p, from, MaxHeaderFetch, 0, false) + } + switch err { + case nil: + // Headers retrieved, continue with processing - // Write out the pivot into the database so a rollback beyond - // it will reenable fast sync and update the state root that - // the state syncer will be downloading. - rawdb.WriteLastPivotNumber(d.stateDB, pivot) - } - pivoting = false - getHeaders(from) - continue - } - // If the skeleton's finished, pull any remaining head headers directly from the origin - if skeleton && packet.Items() == 0 { - skeleton = false - getHeaders(from) - continue - } - // If no more headers are inbound, notify the content fetchers and return - if packet.Items() == 0 { - // Don't abort header fetches while the pivot is downloading - if atomic.LoadInt32(&d.committed) == 0 && pivot <= from { - p.log.Debug("No headers, waiting for pivot commit") - select { - case <-time.After(fsHeaderContCheck): - getHeaders(from) - continue - case <-d.cancelCh: - return errCanceled - } - } - // Pivot done (or not in fast sync) and no more headers, terminate the process - p.log.Debug("No more headers available") - select { - case d.headerProcCh <- nil: - return nil - case <-d.cancelCh: - return errCanceled - } - } - headers := packet.(*headerPack).headers + case errCanceled: + // Sync cancelled, no issue, propagate up + return err - // If we received a skeleton batch, resolve internals concurrently - if skeleton { - filled, proced, err := d.fillHeaderSkeleton(from, headers) - if err != nil { - p.log.Debug("Skeleton chain invalid", "err", err) - return fmt.Errorf("%w: %v", errInvalidChain, err) - } - headers = filled[proced:] - from += uint64(proced) - } else { - // If we're closing in on the chain head, but haven't yet reached it, delay - // the last few headers so mini reorgs on the head don't cause invalid hash - // chain errors. - if n := len(headers); n > 0 { - // Retrieve the current head we're at - var head uint64 - if mode == LightSync { - head = d.lightchain.CurrentHeader().Number.Uint64() - } else { - head = d.blockchain.CurrentFastBlock().NumberU64() - if full := d.blockchain.CurrentBlock().NumberU64(); head < full { - head = full - } - } - // If the head is below the common ancestor, we're actually deduplicating - // already existing chain segments, so use the ancestor as the fake head. - // Otherwise we might end up delaying header deliveries pointlessly. - if head < ancestor { - head = ancestor - } - // If the head is way older than this batch, delay the last few headers - if head+uint64(reorgProtThreshold) < headers[n-1].Number.Uint64() { - delay := reorgProtHeaderDelay - if delay > n { - delay = n - } - headers = headers[:n-delay] - } - } - } - // Insert all the new headers and fetch the next batch - if len(headers) > 0 { - p.log.Trace("Scheduling new headers", "count", len(headers), "from", from) - select { - case d.headerProcCh <- headers: - case <-d.cancelCh: - return errCanceled - } - from += uint64(len(headers)) - - // If we're still skeleton filling fast sync, check pivot staleness - // before continuing to the next skeleton filling - if skeleton && pivot > 0 { - getNextPivot() - } else { - getHeaders(from) - } - } else { - // No headers delivered, or all of them being delayed, sleep a bit and retry - p.log.Trace("All headers delayed, waiting") - select { - case <-time.After(fsHeaderContCheck): - getHeaders(from) - continue - case <-d.cancelCh: - return errCanceled - } - } - - case <-timeout.C: - if d.dropPeer == nil { - // The dropPeer method is nil when `--copydb` is used for a local copy. - // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored - p.log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", p.id) - break - } - // Header retrieval timed out, consider the peer bad and drop - p.log.Debug("Header request timed out", "elapsed", ttl) - headerTimeoutMeter.Mark(1) + default: + // Header retrieval either timed out, or the peer failed in some strange way + // (e.g. disconnect). Consider the master peer bad and drop d.dropPeer(p.id) // Finish the sync gracefully instead of dumping the gathered data though - for _, ch := range []chan bool{d.bodyWakeCh, d.receiptWakeCh} { + for _, ch := range []chan bool{d.queue.blockWakeCh, d.queue.receiptWakeCh} { select { case ch <- false: case <-d.cancelCh: @@ -1217,7 +966,148 @@ func (d *Downloader) fetchHeaders(p *peerConnection, from uint64) error { case d.headerProcCh <- nil: case <-d.cancelCh: } - return fmt.Errorf("%w: header request timed out", errBadPeer) + return fmt.Errorf("%w: header request failed: %v", errBadPeer, err) + } + // If the pivot is being checked, move if it became stale and run the real retrieval + var pivot uint64 + + d.pivotLock.RLock() + if d.pivotHeader != nil { + pivot = d.pivotHeader.Number.Uint64() + } + d.pivotLock.RUnlock() + + if pivoting { + if len(headers) == 2 { + if have, want := headers[0].Number.Uint64(), pivot+uint64(fsMinFullBlocks); have != want { + log.Warn("Peer sent invalid next pivot", "have", have, "want", want) + return fmt.Errorf("%w: next pivot number %d != requested %d", errInvalidChain, have, want) + } + if have, want := headers[1].Number.Uint64(), pivot+2*uint64(fsMinFullBlocks)-8; have != want { + log.Warn("Peer sent invalid pivot confirmer", "have", have, "want", want) + return fmt.Errorf("%w: next pivot confirmer number %d != requested %d", errInvalidChain, have, want) + } + log.Warn("Pivot seemingly stale, moving", "old", pivot, "new", headers[0].Number) + pivot = headers[0].Number.Uint64() + + d.pivotLock.Lock() + d.pivotHeader = headers[0] + d.pivotLock.Unlock() + + // Write out the pivot into the database so a rollback beyond + // it will reenable snap sync and update the state root that + // the state syncer will be downloading. + rawdb.WriteLastPivotNumber(d.stateDB, pivot) + } + // Disable the pivot check and fetch the next batch of headers + pivoting = false + continue + } + // If the skeleton's finished, pull any remaining head headers directly from the origin + if skeleton && len(headers) == 0 { + // A malicious node might withhold advertised headers indefinitely + if from+uint64(MaxHeaderFetch)-1 <= head { + p.log.Warn("Peer withheld skeleton headers", "advertised", head, "withheld", from+uint64(MaxHeaderFetch)-1) + return fmt.Errorf("%w: withheld skeleton headers: advertised %d, withheld #%d", errStallingPeer, head, from+uint64(MaxHeaderFetch)-1) + } + p.log.Debug("No skeleton, fetching headers directly") + skeleton = false + continue + } + // If no more headers are inbound, notify the content fetchers and return + if len(headers) == 0 { + // Don't abort header fetches while the pivot is downloading + if atomic.LoadInt32(&d.committed) == 0 && pivot <= from { + p.log.Debug("No headers, waiting for pivot commit") + select { + case <-time.After(fsHeaderContCheck): + continue + case <-d.cancelCh: + return errCanceled + } + } + // Pivot done (or not in snap sync) and no more headers, terminate the process + p.log.Debug("No more headers available") + select { + case d.headerProcCh <- nil: + return nil + case <-d.cancelCh: + return errCanceled + } + } + // If we received a skeleton batch, resolve internals concurrently + var progressed bool + if skeleton { + filled, proced, err := d.fillHeaderSkeleton(from, headers) + if err != nil { + p.log.Debug("Skeleton chain invalid", "err", err) + return fmt.Errorf("%w: %v", errInvalidChain, err) + } + headers = filled[proced:] + progressed = proced > 0 + from += uint64(proced) + } else { + // A malicious node might withhold advertised headers indefinitely + if n := len(headers); n < MaxHeaderFetch && headers[n-1].Number.Uint64() < head { + p.log.Warn("Peer withheld headers", "advertised", head, "delivered", headers[n-1].Number.Uint64()) + return fmt.Errorf("%w: withheld headers: advertised %d, delivered %d", errStallingPeer, head, headers[n-1].Number.Uint64()) + } + // If we're closing in on the chain head, but haven't yet reached it, delay + // the last few headers so mini reorgs on the head don't cause invalid hash + // chain errors. + if n := len(headers); n > 0 { + // Retrieve the current head we're at + var head uint64 + if mode == LightSync { + head = d.lightchain.CurrentHeader().Number.Uint64() + } else { + head = d.blockchain.CurrentFastBlock().NumberU64() + if full := d.blockchain.CurrentBlock().NumberU64(); head < full { + head = full + } + } + // If the head is below the common ancestor, we're actually deduplicating + // already existing chain segments, so use the ancestor as the fake head. + // Otherwise, we might end up delaying header deliveries pointlessly. + if head < ancestor { + head = ancestor + } + // If the head is way older than this batch, delay the last few headers + if head+uint64(reorgProtThreshold) < headers[n-1].Number.Uint64() { + delay := reorgProtHeaderDelay + if delay > n { + delay = n + } + headers = headers[:n-delay] + } + } + } + // If no headers have bene delivered, or all of them have been delayed, + // sleep a bit and retry. Take care with headers already consumed during + // skeleton filling + if len(headers) == 0 && !progressed { + p.log.Trace("All headers delayed, waiting") + select { + case <-time.After(fsHeaderContCheck): + continue + case <-d.cancelCh: + return errCanceled + } + } + // Insert any remaining new headers and fetch the next batch + if len(headers) > 0 { + p.log.Trace("Scheduling new headers", "count", len(headers), "from", from) + select { + case d.headerProcCh <- headers: + case <-d.cancelCh: + return errCanceled + } + from += uint64(len(headers)) + } + // If we're still skeleton filling snap sync, check pivot staleness + // before continuing to the next skeleton filling + if skeleton && pivot > 0 { + pivoting = true } } } @@ -1235,28 +1125,14 @@ func (d *Downloader) fillHeaderSkeleton(from uint64, skeleton []*types.Header) ( log.Debug("Filling up skeleton", "from", from) d.queue.ScheduleSkeleton(from, skeleton) - var ( - deliver = func(packet dataPack) (int, error) { - pack := packet.(*headerPack) - return d.queue.DeliverHeaders(pack.peerID, pack.headers, d.headerProcCh) - } - expire = func() map[string]int { return d.queue.ExpireHeaders(d.peers.rates.TargetTimeout()) } - reserve = func(p *peerConnection, count int) (*fetchRequest, bool, bool) { - return d.queue.ReserveHeaders(p, count), false, false - } - fetch = func(p *peerConnection, req *fetchRequest) error { return p.FetchHeaders(req.From, MaxHeaderFetch) } - capacity = func(p *peerConnection) int { return p.HeaderCapacity(d.peers.rates.TargetRoundTrip()) } - setIdle = func(p *peerConnection, accepted int, deliveryTime time.Time) { - p.SetHeadersIdle(accepted, deliveryTime) - } - ) - err := d.fetchParts(d.headerCh, deliver, d.queue.headerContCh, expire, - d.queue.PendingHeaders, d.queue.InFlightHeaders, reserve, - nil, fetch, d.queue.CancelHeaders, capacity, d.peers.HeaderIdlePeers, setIdle, "headers") - - log.Debug("Skeleton fill terminated", "err", err) - + err := d.concurrentFetch((*headerQueue)(d)) + if err != nil { + log.Debug("Skeleton fill failed", "err", err) + } filled, proced := d.queue.RetrieveHeaders() + if err == nil { + log.Debug("Skeleton fill succeeded", "filled", len(filled), "processed", proced) + } return filled, proced, err } @@ -1265,20 +1141,7 @@ func (d *Downloader) fillHeaderSkeleton(from uint64, skeleton []*types.Header) ( // and also periodically checking for timeouts. func (d *Downloader) fetchBodies(from uint64) error { log.Debug("Downloading block bodies", "origin", from) - - var ( - deliver = func(packet dataPack) (int, error) { - pack := packet.(*bodyPack) - return d.queue.DeliverBodies(pack.peerID, pack.transactions, pack.uncles) - } - expire = func() map[string]int { return d.queue.ExpireBodies(d.peers.rates.TargetTimeout()) } - fetch = func(p *peerConnection, req *fetchRequest) error { return p.FetchBodies(req) } - capacity = func(p *peerConnection) int { return p.BlockCapacity(d.peers.rates.TargetRoundTrip()) } - setIdle = func(p *peerConnection, accepted int, deliveryTime time.Time) { p.SetBodiesIdle(accepted, deliveryTime) } - ) - err := d.fetchParts(d.bodyCh, deliver, d.bodyWakeCh, expire, - d.queue.PendingBlocks, d.queue.InFlightBlocks, d.queue.ReserveBodies, - d.bodyFetchHook, fetch, d.queue.CancelBodies, capacity, d.peers.BodyIdlePeers, setIdle, "bodies") + err := d.concurrentFetch((*bodyQueue)(d)) log.Debug("Block body download terminated", "err", err) return err @@ -1288,225 +1151,13 @@ func (d *Downloader) fetchBodies(from uint64) error { // available peers, reserving a chunk of receipts for each, waiting for delivery // and also periodically checking for timeouts. func (d *Downloader) fetchReceipts(from uint64) error { - log.Debug("Downloading transaction receipts", "origin", from) + log.Debug("Downloading receipts", "origin", from) + err := d.concurrentFetch((*receiptQueue)(d)) - var ( - deliver = func(packet dataPack) (int, error) { - pack := packet.(*receiptPack) - return d.queue.DeliverReceipts(pack.peerID, pack.receipts) - } - expire = func() map[string]int { return d.queue.ExpireReceipts(d.peers.rates.TargetTimeout()) } - fetch = func(p *peerConnection, req *fetchRequest) error { return p.FetchReceipts(req) } - capacity = func(p *peerConnection) int { return p.ReceiptCapacity(d.peers.rates.TargetRoundTrip()) } - setIdle = func(p *peerConnection, accepted int, deliveryTime time.Time) { - p.SetReceiptsIdle(accepted, deliveryTime) - } - ) - err := d.fetchParts(d.receiptCh, deliver, d.receiptWakeCh, expire, - d.queue.PendingReceipts, d.queue.InFlightReceipts, d.queue.ReserveReceipts, - d.receiptFetchHook, fetch, d.queue.CancelReceipts, capacity, d.peers.ReceiptIdlePeers, setIdle, "receipts") - - log.Debug("Transaction receipt download terminated", "err", err) + log.Debug("Receipt download terminated", "err", err) return err } -// fetchParts iteratively downloads scheduled block parts, taking any available -// peers, reserving a chunk of fetch requests for each, waiting for delivery and -// also periodically checking for timeouts. -// -// As the scheduling/timeout logic mostly is the same for all downloaded data -// types, this method is used by each for data gathering and is instrumented with -// various callbacks to handle the slight differences between processing them. -// -// The instrumentation parameters: -// - errCancel: error type to return if the fetch operation is cancelled (mostly makes logging nicer) -// - deliveryCh: channel from which to retrieve downloaded data packets (merged from all concurrent peers) -// - deliver: processing callback to deliver data packets into type specific download queues (usually within `queue`) -// - wakeCh: notification channel for waking the fetcher when new tasks are available (or sync completed) -// - expire: task callback method to abort requests that took too long and return the faulty peers (traffic shaping) -// - pending: task callback for the number of requests still needing download (detect completion/non-completability) -// - inFlight: task callback for the number of in-progress requests (wait for all active downloads to finish) -// - throttle: task callback to check if the processing queue is full and activate throttling (bound memory use) -// - reserve: task callback to reserve new download tasks to a particular peer (also signals partial completions) -// - fetchHook: tester callback to notify of new tasks being initiated (allows testing the scheduling logic) -// - fetch: network callback to actually send a particular download request to a physical remote peer -// - cancel: task callback to abort an in-flight download request and allow rescheduling it (in case of lost peer) -// - capacity: network callback to retrieve the estimated type-specific bandwidth capacity of a peer (traffic shaping) -// - idle: network callback to retrieve the currently (type specific) idle peers that can be assigned tasks -// - setIdle: network callback to set a peer back to idle and update its estimated capacity (traffic shaping) -// - kind: textual label of the type being downloaded to display in log messages -func (d *Downloader) fetchParts(deliveryCh chan dataPack, deliver func(dataPack) (int, error), wakeCh chan bool, - expire func() map[string]int, pending func() int, inFlight func() bool, reserve func(*peerConnection, int) (*fetchRequest, bool, bool), - fetchHook func([]*types.Header), fetch func(*peerConnection, *fetchRequest) error, cancel func(*fetchRequest), capacity func(*peerConnection) int, - idle func() ([]*peerConnection, int), setIdle func(*peerConnection, int, time.Time), kind string) error { - - // Create a ticker to detect expired retrieval tasks - ticker := time.NewTicker(100 * time.Millisecond) - defer ticker.Stop() - - update := make(chan struct{}, 1) - - // Prepare the queue and fetch block parts until the block header fetcher's done - finished := false - for { - select { - case <-d.cancelCh: - return errCanceled - - case packet := <-deliveryCh: - deliveryTime := time.Now() - // If the peer was previously banned and failed to deliver its pack - // in a reasonable time frame, ignore its message. - if peer := d.peers.Peer(packet.PeerId()); peer != nil { - // Deliver the received chunk of data and check chain validity - accepted, err := deliver(packet) - if errors.Is(err, errInvalidChain) { - return err - } - // Unless a peer delivered something completely else than requested (usually - // caused by a timed out request which came through in the end), set it to - // idle. If the delivery's stale, the peer should have already been idled. - if !errors.Is(err, errStaleDelivery) { - setIdle(peer, accepted, deliveryTime) - } - // Issue a log to the user to see what's going on - switch { - case err == nil && packet.Items() == 0: - peer.log.Trace("Requested data not delivered", "type", kind) - case err == nil: - peer.log.Trace("Delivered new batch of data", "type", kind, "count", packet.Stats()) - default: - peer.log.Debug("Failed to deliver retrieved data", "type", kind, "err", err) - } - } - // Blocks assembled, try to update the progress - select { - case update <- struct{}{}: - default: - } - - case cont := <-wakeCh: - // The header fetcher sent a continuation flag, check if it's done - if !cont { - finished = true - } - // Headers arrive, try to update the progress - select { - case update <- struct{}{}: - default: - } - - case <-ticker.C: - // Sanity check update the progress - select { - case update <- struct{}{}: - default: - } - - case <-update: - // Short circuit if we lost all our peers - if d.peers.Len() == 0 { - return errNoPeers - } - // Check for fetch request timeouts and demote the responsible peers - for pid, fails := range expire() { - if peer := d.peers.Peer(pid); peer != nil { - // If a lot of retrieval elements expired, we might have overestimated the remote peer or perhaps - // ourselves. Only reset to minimal throughput but don't drop just yet. If even the minimal times - // out that sync wise we need to get rid of the peer. - // - // The reason the minimum threshold is 2 is because the downloader tries to estimate the bandwidth - // and latency of a peer separately, which requires pushing the measures capacity a bit and seeing - // how response times reacts, to it always requests one more than the minimum (i.e. min 2). - if fails > 2 { - peer.log.Trace("Data delivery timed out", "type", kind) - setIdle(peer, 0, time.Now()) - } else { - peer.log.Debug("Stalling delivery, dropping", "type", kind) - - if d.dropPeer == nil { - // The dropPeer method is nil when `--copydb` is used for a local copy. - // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored - peer.log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", pid) - } else { - d.dropPeer(pid) - - // If this peer was the master peer, abort sync immediately - d.cancelLock.RLock() - master := pid == d.cancelPeer - d.cancelLock.RUnlock() - - if master { - d.cancel() - return errTimeout - } - } - } - } - } - // If there's nothing more to fetch, wait or terminate - if pending() == 0 { - if !inFlight() && finished { - log.Debug("Data fetching completed", "type", kind) - return nil - } - break - } - // Send a download request to all idle peers, until throttled - progressed, throttled, running := false, false, inFlight() - idles, total := idle() - pendCount := pending() - for _, peer := range idles { - // Short circuit if throttling activated - if throttled { - break - } - // Short circuit if there is no more available task. - if pendCount = pending(); pendCount == 0 { - break - } - // Reserve a chunk of fetches for a peer. A nil can mean either that - // no more headers are available, or that the peer is known not to - // have them. - request, progress, throttle := reserve(peer, capacity(peer)) - if progress { - progressed = true - } - if throttle { - throttled = true - throttleCounter.Inc(1) - } - if request == nil { - continue - } - if request.From > 0 { - peer.log.Trace("Requesting new batch of data", "type", kind, "from", request.From) - } else { - peer.log.Trace("Requesting new batch of data", "type", kind, "count", len(request.Headers), "from", request.Headers[0].Number) - } - // Fetch the chunk and make sure any errors return the hashes to the queue - if fetchHook != nil { - fetchHook(request.Headers) - } - if err := fetch(peer, request); err != nil { - // Although we could try and make an attempt to fix this, this error really - // means that we've double allocated a fetch task to a peer. If that is the - // case, the internal state of the downloader and the queue is very wrong so - // better hard crash and note the error instead of silently accumulating into - // a much bigger issue. - panic(fmt.Sprintf("%v: %s fetch assignment failed", peer, kind)) - } - running = true - } - // Make sure that we have peers available for fetching. If all peers have been tried - // and all failed throw an error - if !progressed && !throttled && !running && len(idles) == total && pendCount > 0 { - return errPeersUnavailable - } - } - } -} - // processHeaders takes batches of retrieved headers from an input channel and // keeps processing and scheduling them into the header chain and downloader's // queue until the stream ends or a failure occurs. @@ -1535,7 +1186,7 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { } log.Warn("Rolled back chain segment", "header", fmt.Sprintf("%d->%d", lastHeader, d.lightchain.CurrentHeader().Number), - "fast", fmt.Sprintf("%d->%d", lastFastBlock, curFastBlock), + "snap", fmt.Sprintf("%d->%d", lastFastBlock, curFastBlock), "block", fmt.Sprintf("%d->%d", lastBlock, curBlock), "reason", rollbackErr) } }() @@ -1552,7 +1203,7 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { // Terminate header processing if we synced up if len(headers) == 0 { // Notify everyone that headers are fully processed - for _, ch := range []chan bool{d.bodyWakeCh, d.receiptWakeCh} { + for _, ch := range []chan bool{d.queue.blockWakeCh, d.queue.receiptWakeCh} { select { case ch <- false: case <-d.cancelCh: @@ -1576,14 +1227,14 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { return errStallingPeer } } - // If fast or light syncing, ensure promised headers are indeed delivered. This is + // If snap or light syncing, ensure promised headers are indeed delivered. This is // needed to detect scenarios where an attacker feeds a bad pivot and then bails out // of delivering the post-pivot blocks that would flag the invalid content. // // This check cannot be executed "as is" for full imports, since blocks may still be // queued for processing when the header download completes. However, as long as the // peer gave us something useful, we're already happy/progressed (above check). - if mode == FastSync || mode == LightSync { + if mode == SnapSync || mode == LightSync { head := d.lightchain.CurrentHeader() if td.Cmp(d.lightchain.GetTd(head.Hash(), head.Number.Uint64())) > 0 { return errStallingPeer @@ -1611,7 +1262,7 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { chunk := headers[:limit] // In case of header only syncing, validate the chunk immediately - if mode == FastSync || mode == LightSync { + if mode == SnapSync || mode == LightSync { // If we're importing pure headers, verify based on their recentness var pivot uint64 @@ -1629,14 +1280,14 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { rollbackErr = err // If some headers were inserted, track them as uncertain - if (mode == FastSync || frequency > 1) && n > 0 && rollback == 0 { + if (mode == SnapSync || frequency > 1) && n > 0 && rollback == 0 { rollback = chunk[0].Number.Uint64() } log.Warn("Invalid header encountered", "number", chunk[n].Number, "hash", chunk[n].Hash(), "parent", chunk[n].ParentHash, "err", err) return fmt.Errorf("%w: %v", errInvalidChain, err) } // All verifications passed, track all headers within the alloted limits - if mode == FastSync { + if mode == SnapSync { head := chunk[len(chunk)-1].Number.Uint64() if head-rollback > uint64(fsHeaderSafetyNet) { rollback = head - uint64(fsHeaderSafetyNet) @@ -1646,9 +1297,9 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { } } // Unless we're doing light chains, schedule the headers for associated content retrieval - if mode == FullSync || mode == FastSync { + if mode == FullSync || mode == SnapSync { // If we've reached the allowed number of pending headers, stall a bit - for d.queue.PendingBlocks() >= maxQueuedHeaders || d.queue.PendingReceipts() >= maxQueuedHeaders { + for d.queue.PendingBodies() >= maxQueuedHeaders || d.queue.PendingReceipts() >= maxQueuedHeaders { select { case <-d.cancelCh: rollbackErr = errCanceled @@ -1674,7 +1325,7 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { d.syncStatsLock.Unlock() // Signal the content downloaders of the availablility of new tasks - for _, ch := range []chan bool{d.bodyWakeCh, d.receiptWakeCh} { + for _, ch := range []chan bool{d.queue.blockWakeCh, d.queue.receiptWakeCh} { select { case ch <- true: default: @@ -1738,9 +1389,9 @@ func (d *Downloader) importBlockResults(results []*fetchResult) error { return nil } -// processFastSyncContent takes fetch results from the queue and writes them to the +// processSnapSyncContent takes fetch results from the queue and writes them to the // database. It also controls the synchronisation of state nodes of the pivot block. -func (d *Downloader) processFastSyncContent() error { +func (d *Downloader) processSnapSyncContent() error { // Start syncing state of the reported head block. This should get us most of // the state of the pivot block. d.pivotLock.RLock() @@ -1803,7 +1454,7 @@ func (d *Downloader) processFastSyncContent() error { } else { results = append(append([]*fetchResult{oldPivot}, oldTail...), results...) } - // Split around the pivot block and process the two sides via fast/full sync + // Split around the pivot block and process the two sides via snap/full sync if atomic.LoadInt32(&d.committed) == 0 { latest := results[len(results)-1].Header // If the height is above the pivot block by 2 sets, it means the pivot @@ -1822,12 +1473,12 @@ func (d *Downloader) processFastSyncContent() error { d.pivotLock.Unlock() // Write out the pivot into the database so a rollback beyond it will - // reenable fast sync + // reenable snap sync rawdb.WriteLastPivotNumber(d.stateDB, pivot.Number.Uint64()) } } P, beforeP, afterP := splitAroundPivot(pivot.Number.Uint64(), results) - if err := d.commitFastSyncData(beforeP, sync); err != nil { + if err := d.commitSnapSyncData(beforeP, sync); err != nil { return err } if P != nil { @@ -1885,7 +1536,7 @@ func splitAroundPivot(pivot uint64, results []*fetchResult) (p *fetchResult, bef return p, before, after } -func (d *Downloader) commitFastSyncData(results []*fetchResult, stateSync *stateSync) error { +func (d *Downloader) commitSnapSyncData(results []*fetchResult, stateSync *stateSync) error { // Check for any early termination requests if len(results) == 0 { return nil @@ -1901,7 +1552,7 @@ func (d *Downloader) commitFastSyncData(results []*fetchResult, stateSync *state } // Retrieve the a batch of results to import first, last := results[0].Header, results[len(results)-1].Header - log.Debug("Inserting fast-sync blocks", "items", len(results), + log.Debug("Inserting snap-sync blocks", "items", len(results), "firstnum", first.Number, "firsthash", first.Hash(), "lastnumn", last.Number, "lasthash", last.Hash(), ) @@ -1920,20 +1571,20 @@ func (d *Downloader) commitFastSyncData(results []*fetchResult, stateSync *state func (d *Downloader) commitPivotBlock(result *fetchResult) error { block := types.NewBlockWithHeader(result.Header).WithBody(result.Transactions, result.Uncles) - log.Debug("Committing fast sync pivot as new head", "number", block.Number(), "hash", block.Hash()) + log.Debug("Committing snap sync pivot as new head", "number", block.Number(), "hash", block.Hash()) // Commit the pivot block as the new head, will require full sync from here on if _, err := d.blockchain.InsertReceiptChain([]*types.Block{block}, []types.Receipts{result.Receipts}, d.ancientLimit); err != nil { return err } - if err := d.blockchain.FastSyncCommitHead(block.Hash()); err != nil { + if err := d.blockchain.SnapSyncCommitHead(block.Hash()); err != nil { return err } atomic.StoreInt32(&d.committed, 1) // If we had a bloom filter for the state sync, deallocate it now. Note, we only // deallocate internally, but keep the empty wrapper. This ensures that if we do - // a rollback after committing the pivot and restarting fast sync, we don't end + // a rollback after committing the pivot and restarting snap sync, we don't end // up using a nil bloom. Empty bloom is fine, it just returns that it does not // have the info we need, so reach down to the database instead. if d.stateBloom != nil { @@ -1942,27 +1593,6 @@ func (d *Downloader) commitPivotBlock(result *fetchResult) error { return nil } -// DeliverHeaders injects a new batch of block headers received from a remote -// node into the download schedule. -func (d *Downloader) DeliverHeaders(id string, headers []*types.Header) error { - return d.deliver(d.headerCh, &headerPack{id, headers}, headerInMeter, headerDropMeter) -} - -// DeliverBodies injects a new batch of block bodies received from a remote node. -func (d *Downloader) DeliverBodies(id string, transactions [][]*types.Transaction, uncles [][]*types.Header) error { - return d.deliver(d.bodyCh, &bodyPack{id, transactions, uncles}, bodyInMeter, bodyDropMeter) -} - -// DeliverReceipts injects a new batch of receipts received from a remote node. -func (d *Downloader) DeliverReceipts(id string, receipts [][]*types.Receipt) error { - return d.deliver(d.receiptCh, &receiptPack{id, receipts}, receiptInMeter, receiptDropMeter) -} - -// DeliverNodeData injects a new batch of node state data received from a remote node. -func (d *Downloader) DeliverNodeData(id string, data [][]byte) error { - return d.deliver(d.stateCh, &statePack{id, data}, stateInMeter, stateDropMeter) -} - // DeliverSnapPacket is invoked from a peer's message handler when it transmits a // data packet for the local node to consume. func (d *Downloader) DeliverSnapPacket(peer *snap.Peer, packet snap.Packet) error { @@ -1988,27 +1618,3 @@ func (d *Downloader) DeliverSnapPacket(peer *snap.Peer, packet snap.Packet) erro return fmt.Errorf("unexpected snap packet type: %T", packet) } } - -// deliver injects a new batch of data received from a remote node. -func (d *Downloader) deliver(destCh chan dataPack, packet dataPack, inMeter, dropMeter metrics.Meter) (err error) { - // Update the delivery metrics for both good and failed deliveries - inMeter.Mark(int64(packet.Items())) - defer func() { - if err != nil { - dropMeter.Mark(int64(packet.Items())) - } - }() - // Deliver or abort if the sync is canceled while queuing - d.cancelLock.RLock() - cancel := d.cancelCh - d.cancelLock.RUnlock() - if cancel == nil { - return errNoSyncActive - } - select { - case destCh <- packet: - return nil - case <-cancel: - return errNoSyncActive - } -} diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go index 17cd3630c..e6e092b22 100644 --- a/eth/downloader/downloader_test.go +++ b/eth/downloader/downloader_test.go @@ -19,7 +19,9 @@ package downloader import ( "errors" "fmt" + "io/ioutil" "math/big" + "os" "strings" "sync" "sync/atomic" @@ -28,68 +30,52 @@ import ( "github.com/ethereum/go-ethereum" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/consensus/ethash" + "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/rawdb" - "github.com/ethereum/go-ethereum/core/state/snapshot" "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/eth/protocols/eth" - "github.com/ethereum/go-ethereum/ethdb" + "github.com/ethereum/go-ethereum/eth/protocols/snap" "github.com/ethereum/go-ethereum/event" + "github.com/ethereum/go-ethereum/log" + "github.com/ethereum/go-ethereum/params" + "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/trie" ) -// Reduce some of the parameters to make the tester faster. -func init() { - fullMaxForkAncestry = 10000 - lightMaxForkAncestry = 10000 - blockCacheMaxItems = 1024 - fsHeaderContCheck = 500 * time.Millisecond -} - // downloadTester is a test simulator for mocking out local block chain. type downloadTester struct { + freezer string + chain *core.BlockChain downloader *Downloader - genesis *types.Block // Genesis blocks used by the tester and peers - stateDb ethdb.Database // Database used by the tester for syncing from peers - peerDb ethdb.Database // Database of the peers containing all data - peers map[string]*downloadTesterPeer - - ownHashes []common.Hash // Hash chain belonging to the tester - ownHeaders map[common.Hash]*types.Header // Headers belonging to the tester - ownBlocks map[common.Hash]*types.Block // Blocks belonging to the tester - ownReceipts map[common.Hash]types.Receipts // Receipts belonging to the tester - ownChainTd map[common.Hash]*big.Int // Total difficulties of the blocks in the local chain - - ancientHeaders map[common.Hash]*types.Header // Ancient headers belonging to the tester - ancientBlocks map[common.Hash]*types.Block // Ancient blocks belonging to the tester - ancientReceipts map[common.Hash]types.Receipts // Ancient receipts belonging to the tester - ancientChainTd map[common.Hash]*big.Int // Ancient total difficulties of the blocks in the local chain - - lock sync.RWMutex + peers map[string]*downloadTesterPeer + lock sync.RWMutex } // newTester creates a new downloader test mocker. func newTester() *downloadTester { - tester := &downloadTester{ - genesis: testGenesis, - peerDb: testDB, - peers: make(map[string]*downloadTesterPeer), - ownHashes: []common.Hash{testGenesis.Hash()}, - ownHeaders: map[common.Hash]*types.Header{testGenesis.Hash(): testGenesis.Header()}, - ownBlocks: map[common.Hash]*types.Block{testGenesis.Hash(): testGenesis}, - ownReceipts: map[common.Hash]types.Receipts{testGenesis.Hash(): nil}, - ownChainTd: map[common.Hash]*big.Int{testGenesis.Hash(): testGenesis.Difficulty()}, - - // Initialize ancient store with test genesis block - ancientHeaders: map[common.Hash]*types.Header{testGenesis.Hash(): testGenesis.Header()}, - ancientBlocks: map[common.Hash]*types.Block{testGenesis.Hash(): testGenesis}, - ancientReceipts: map[common.Hash]types.Receipts{testGenesis.Hash(): nil}, - ancientChainTd: map[common.Hash]*big.Int{testGenesis.Hash(): testGenesis.Difficulty()}, + freezer, err := ioutil.TempDir("", "") + if err != nil { + panic(err) } - tester.stateDb = rawdb.NewMemoryDatabase() - tester.stateDb.Put(testGenesis.Root().Bytes(), []byte{0x00}) + db, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), freezer, "", false) + if err != nil { + panic(err) + } + core.GenesisBlockForTesting(db, testAddress, big.NewInt(1000000000000000)) - tester.downloader = New(0, tester.stateDb, trie.NewSyncBloom(1, tester.stateDb), new(event.TypeMux), tester, nil, tester.dropPeer) + chain, err := core.NewBlockChain(db, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil) + if err != nil { + panic(err) + } + tester := &downloadTester{ + freezer: freezer, + chain: chain, + peers: make(map[string]*downloadTesterPeer), + } + tester.downloader = New(0, db, trie.NewSyncBloom(1, db), new(event.TypeMux), tester.chain, nil, tester.dropPeer) return tester } @@ -97,20 +83,20 @@ func newTester() *downloadTester { // held resources. func (dl *downloadTester) terminate() { dl.downloader.Terminate() + dl.chain.Stop() + + os.RemoveAll(dl.freezer) } // sync starts synchronizing with a remote peer, blocking until it completes. func (dl *downloadTester) sync(id string, td *big.Int, mode SyncMode) error { - dl.lock.RLock() - hash := dl.peers[id].chain.headBlock().Hash() - // If no particular TD was requested, load from the peer's blockchain + head := dl.peers[id].chain.CurrentBlock() if td == nil { - td = dl.peers[id].chain.td(hash) + // If no particular TD was requested, load from the peer's blockchain + td = dl.peers[id].chain.GetTd(head.Hash(), head.NumberU64()) } - dl.lock.RUnlock() - // Synchronise with the chosen peer and ensure proper cleanup afterwards - err := dl.downloader.synchronise(id, hash, td, mode) + err := dl.downloader.synchronise(id, head.Hash(), td, mode) select { case <-dl.downloader.cancelCh: // Ok, downloader fully cancelled after sync cycle @@ -121,284 +107,26 @@ func (dl *downloadTester) sync(id string, td *big.Int, mode SyncMode) error { return err } -// HasHeader checks if a header is present in the testers canonical chain. -func (dl *downloadTester) HasHeader(hash common.Hash, number uint64) bool { - return dl.GetHeaderByHash(hash) != nil -} - -// HasBlock checks if a block is present in the testers canonical chain. -func (dl *downloadTester) HasBlock(hash common.Hash, number uint64) bool { - return dl.GetBlockByHash(hash) != nil -} - -// HasFastBlock checks if a block is present in the testers canonical chain. -func (dl *downloadTester) HasFastBlock(hash common.Hash, number uint64) bool { - dl.lock.RLock() - defer dl.lock.RUnlock() - - if _, ok := dl.ancientReceipts[hash]; ok { - return true - } - _, ok := dl.ownReceipts[hash] - return ok -} - -// GetHeader retrieves a header from the testers canonical chain. -func (dl *downloadTester) GetHeaderByHash(hash common.Hash) *types.Header { - dl.lock.RLock() - defer dl.lock.RUnlock() - return dl.getHeaderByHash(hash) -} - -// getHeaderByHash returns the header if found either within ancients or own blocks) -// This method assumes that the caller holds at least the read-lock (dl.lock) -func (dl *downloadTester) getHeaderByHash(hash common.Hash) *types.Header { - header := dl.ancientHeaders[hash] - if header != nil { - return header - } - return dl.ownHeaders[hash] -} - -// GetBlock retrieves a block from the testers canonical chain. -func (dl *downloadTester) GetBlockByHash(hash common.Hash) *types.Block { - dl.lock.RLock() - defer dl.lock.RUnlock() - - block := dl.ancientBlocks[hash] - if block != nil { - return block - } - return dl.ownBlocks[hash] -} - -// CurrentHeader retrieves the current head header from the canonical chain. -func (dl *downloadTester) CurrentHeader() *types.Header { - dl.lock.RLock() - defer dl.lock.RUnlock() - - for i := len(dl.ownHashes) - 1; i >= 0; i-- { - if header := dl.ancientHeaders[dl.ownHashes[i]]; header != nil { - return header - } - if header := dl.ownHeaders[dl.ownHashes[i]]; header != nil { - return header - } - } - return dl.genesis.Header() -} - -// CurrentBlock retrieves the current head block from the canonical chain. -func (dl *downloadTester) CurrentBlock() *types.Block { - dl.lock.RLock() - defer dl.lock.RUnlock() - - for i := len(dl.ownHashes) - 1; i >= 0; i-- { - if block := dl.ancientBlocks[dl.ownHashes[i]]; block != nil { - if _, err := dl.stateDb.Get(block.Root().Bytes()); err == nil { - return block - } - return block - } - if block := dl.ownBlocks[dl.ownHashes[i]]; block != nil { - if _, err := dl.stateDb.Get(block.Root().Bytes()); err == nil { - return block - } - } - } - return dl.genesis -} - -// CurrentFastBlock retrieves the current head fast-sync block from the canonical chain. -func (dl *downloadTester) CurrentFastBlock() *types.Block { - dl.lock.RLock() - defer dl.lock.RUnlock() - - for i := len(dl.ownHashes) - 1; i >= 0; i-- { - if block := dl.ancientBlocks[dl.ownHashes[i]]; block != nil { - return block - } - if block := dl.ownBlocks[dl.ownHashes[i]]; block != nil { - return block - } - } - return dl.genesis -} - -// FastSyncCommitHead manually sets the head block to a given hash. -func (dl *downloadTester) FastSyncCommitHead(hash common.Hash) error { - // For now only check that the state trie is correct - if block := dl.GetBlockByHash(hash); block != nil { - _, err := trie.NewSecure(block.Root(), trie.NewDatabase(dl.stateDb)) - return err - } - return fmt.Errorf("non existent block: %x", hash[:4]) -} - -// GetTd retrieves the block's total difficulty from the canonical chain. -func (dl *downloadTester) GetTd(hash common.Hash, number uint64) *big.Int { - dl.lock.RLock() - defer dl.lock.RUnlock() - - return dl.getTd(hash) -} - -// getTd retrieves the block's total difficulty if found either within -// ancients or own blocks). -// This method assumes that the caller holds at least the read-lock (dl.lock) -func (dl *downloadTester) getTd(hash common.Hash) *big.Int { - if td := dl.ancientChainTd[hash]; td != nil { - return td - } - return dl.ownChainTd[hash] -} - -// InsertHeaderChain injects a new batch of headers into the simulated chain. -func (dl *downloadTester) InsertHeaderChain(headers []*types.Header, checkFreq int) (i int, err error) { - dl.lock.Lock() - defer dl.lock.Unlock() - // Do a quick check, as the blockchain.InsertHeaderChain doesn't insert anything in case of errors - if dl.getHeaderByHash(headers[0].ParentHash) == nil { - return 0, fmt.Errorf("InsertHeaderChain: unknown parent at first position, parent of number %d", headers[0].Number) - } - var hashes []common.Hash - for i := 1; i < len(headers); i++ { - hash := headers[i-1].Hash() - if headers[i].ParentHash != headers[i-1].Hash() { - return i, fmt.Errorf("non-contiguous import at position %d", i) - } - hashes = append(hashes, hash) - } - hashes = append(hashes, headers[len(headers)-1].Hash()) - // Do a full insert if pre-checks passed - for i, header := range headers { - hash := hashes[i] - if dl.getHeaderByHash(hash) != nil { - continue - } - if dl.getHeaderByHash(header.ParentHash) == nil { - // This _should_ be impossible, due to precheck and induction - return i, fmt.Errorf("InsertHeaderChain: unknown parent at position %d", i) - } - dl.ownHashes = append(dl.ownHashes, hash) - dl.ownHeaders[hash] = header - - td := dl.getTd(header.ParentHash) - dl.ownChainTd[hash] = new(big.Int).Add(td, header.Difficulty) - } - return len(headers), nil -} - -// InsertChain injects a new batch of blocks into the simulated chain. -func (dl *downloadTester) InsertChain(blocks types.Blocks) (i int, err error) { - dl.lock.Lock() - defer dl.lock.Unlock() - for i, block := range blocks { - if parent, ok := dl.ownBlocks[block.ParentHash()]; !ok { - return i, fmt.Errorf("InsertChain: unknown parent at position %d / %d", i, len(blocks)) - } else if _, err := dl.stateDb.Get(parent.Root().Bytes()); err != nil { - return i, fmt.Errorf("InsertChain: unknown parent state %x: %v", parent.Root(), err) - } - if hdr := dl.getHeaderByHash(block.Hash()); hdr == nil { - dl.ownHashes = append(dl.ownHashes, block.Hash()) - dl.ownHeaders[block.Hash()] = block.Header() - } - dl.ownBlocks[block.Hash()] = block - dl.ownReceipts[block.Hash()] = make(types.Receipts, 0) - dl.stateDb.Put(block.Root().Bytes(), []byte{0x00}) - td := dl.getTd(block.ParentHash()) - dl.ownChainTd[block.Hash()] = new(big.Int).Add(td, block.Difficulty()) - } - return len(blocks), nil -} - -// InsertReceiptChain injects a new batch of receipts into the simulated chain. -func (dl *downloadTester) InsertReceiptChain(blocks types.Blocks, receipts []types.Receipts, ancientLimit uint64) (i int, err error) { - dl.lock.Lock() - defer dl.lock.Unlock() - - for i := 0; i < len(blocks) && i < len(receipts); i++ { - if _, ok := dl.ownHeaders[blocks[i].Hash()]; !ok { - return i, errors.New("unknown owner") - } - if _, ok := dl.ancientBlocks[blocks[i].ParentHash()]; !ok { - if _, ok := dl.ownBlocks[blocks[i].ParentHash()]; !ok { - return i, errors.New("InsertReceiptChain: unknown parent") - } - } - if blocks[i].NumberU64() <= ancientLimit { - dl.ancientBlocks[blocks[i].Hash()] = blocks[i] - dl.ancientReceipts[blocks[i].Hash()] = receipts[i] - - // Migrate from active db to ancient db - dl.ancientHeaders[blocks[i].Hash()] = blocks[i].Header() - dl.ancientChainTd[blocks[i].Hash()] = new(big.Int).Add(dl.ancientChainTd[blocks[i].ParentHash()], blocks[i].Difficulty()) - delete(dl.ownHeaders, blocks[i].Hash()) - delete(dl.ownChainTd, blocks[i].Hash()) - } else { - dl.ownBlocks[blocks[i].Hash()] = blocks[i] - dl.ownReceipts[blocks[i].Hash()] = receipts[i] - } - } - return len(blocks), nil -} - -// SetHead rewinds the local chain to a new head. -func (dl *downloadTester) SetHead(head uint64) error { - dl.lock.Lock() - defer dl.lock.Unlock() - - // Find the hash of the head to reset to - var hash common.Hash - for h, header := range dl.ownHeaders { - if header.Number.Uint64() == head { - hash = h - } - } - for h, header := range dl.ancientHeaders { - if header.Number.Uint64() == head { - hash = h - } - } - if hash == (common.Hash{}) { - return fmt.Errorf("unknown head to set: %d", head) - } - // Find the offset in the header chain - var offset int - for o, h := range dl.ownHashes { - if h == hash { - offset = o - break - } - } - // Remove all the hashes and associated data afterwards - for i := offset + 1; i < len(dl.ownHashes); i++ { - delete(dl.ownChainTd, dl.ownHashes[i]) - delete(dl.ownHeaders, dl.ownHashes[i]) - delete(dl.ownReceipts, dl.ownHashes[i]) - delete(dl.ownBlocks, dl.ownHashes[i]) - - delete(dl.ancientChainTd, dl.ownHashes[i]) - delete(dl.ancientHeaders, dl.ownHashes[i]) - delete(dl.ancientReceipts, dl.ownHashes[i]) - delete(dl.ancientBlocks, dl.ownHashes[i]) - } - dl.ownHashes = dl.ownHashes[:offset+1] - return nil -} - -// Rollback removes some recently added elements from the chain. -func (dl *downloadTester) Rollback(hashes []common.Hash) { -} - // newPeer registers a new block download source into the downloader. -func (dl *downloadTester) newPeer(id string, version uint, chain *testChain) error { +func (dl *downloadTester) newPeer(id string, version uint, blocks []*types.Block) *downloadTesterPeer { dl.lock.Lock() defer dl.lock.Unlock() - peer := &downloadTesterPeer{dl: dl, id: id, chain: chain} + peer := &downloadTesterPeer{ + dl: dl, + id: id, + chain: newTestBlockchain(blocks), + withholdHeaders: make(map[common.Hash]struct{}), + } dl.peers[id] = peer - return dl.downloader.RegisterPeer(id, version, peer) + + if err := dl.downloader.RegisterPeer(id, version, peer); err != nil { + panic(err) + } + if err := dl.downloader.SnapSyncer.Register(peer); err != nil { + panic(err) + } + return peer } // dropPeer simulates a hard peer removal from the connection pool. @@ -407,154 +135,294 @@ func (dl *downloadTester) dropPeer(id string) { defer dl.lock.Unlock() delete(dl.peers, id) + dl.downloader.SnapSyncer.Unregister(id) dl.downloader.UnregisterPeer(id) } -// Snapshots implements the BlockChain interface for the downloader, but is a noop. -func (dl *downloadTester) Snapshots() *snapshot.Tree { - return nil -} - type downloadTesterPeer struct { - dl *downloadTester - id string - chain *testChain - missingStates map[common.Hash]bool // State entries that fast sync should not return + dl *downloadTester + id string + chain *core.BlockChain + + withholdHeaders map[common.Hash]struct{} } // Head constructs a function to retrieve a peer's current head hash // and total difficulty. func (dlp *downloadTesterPeer) Head() (common.Hash, *big.Int) { - b := dlp.chain.headBlock() - return b.Hash(), dlp.chain.td(b.Hash()) + head := dlp.chain.CurrentBlock() + return head.Hash(), dlp.chain.GetTd(head.Hash(), head.NumberU64()) } // RequestHeadersByHash constructs a GetBlockHeaders function based on a hashed // origin; associated with a particular peer in the download tester. The returned // function can be used to retrieve batches of headers from the particular peer. -func (dlp *downloadTesterPeer) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool) error { - result := dlp.chain.headersByHash(origin, amount, skip, reverse) - go dlp.dl.downloader.DeliverHeaders(dlp.id, result) - return nil +func (dlp *downloadTesterPeer) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool, sink chan *eth.Response) (*eth.Request, error) { + // Service the header query via the live handler code + headers := eth.ServiceGetBlockHeadersQuery(dlp.chain, ð.GetBlockHeadersPacket{ + Origin: eth.HashOrNumber{ + Hash: origin, + }, + Amount: uint64(amount), + Skip: uint64(skip), + Reverse: reverse, + }, nil) + + // If a malicious peer is simulated withholding headers, delete them + for hash := range dlp.withholdHeaders { + for i, header := range headers { + if header.Hash() == hash { + headers = append(headers[:i], headers[i+1:]...) + break + } + } + } + // Deliver the headers to the downloader + req := ð.Request{ + Peer: dlp.id, + } + res := ð.Response{ + Req: req, + Res: (*eth.BlockHeadersPacket)(&headers), + Time: 1, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil } // RequestHeadersByNumber constructs a GetBlockHeaders function based on a numbered // origin; associated with a particular peer in the download tester. The returned // function can be used to retrieve batches of headers from the particular peer. -func (dlp *downloadTesterPeer) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool) error { - result := dlp.chain.headersByNumber(origin, amount, skip, reverse) - go dlp.dl.downloader.DeliverHeaders(dlp.id, result) - return nil +func (dlp *downloadTesterPeer) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool, sink chan *eth.Response) (*eth.Request, error) { + // Service the header query via the live handler code + headers := eth.ServiceGetBlockHeadersQuery(dlp.chain, ð.GetBlockHeadersPacket{ + Origin: eth.HashOrNumber{ + Number: origin, + }, + Amount: uint64(amount), + Skip: uint64(skip), + Reverse: reverse, + }, nil) + + // If a malicious peer is simulated withholding headers, delete them + for hash := range dlp.withholdHeaders { + for i, header := range headers { + if header.Hash() == hash { + headers = append(headers[:i], headers[i+1:]...) + break + } + } + } + // Deliver the headers to the downloader + req := ð.Request{ + Peer: dlp.id, + } + res := ð.Response{ + Req: req, + Res: (*eth.BlockHeadersPacket)(&headers), + Time: 1, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil } // RequestBodies constructs a getBlockBodies method associated with a particular // peer in the download tester. The returned function can be used to retrieve // batches of block bodies from the particularly requested peer. -func (dlp *downloadTesterPeer) RequestBodies(hashes []common.Hash) error { - txs, uncles := dlp.chain.bodies(hashes) - go dlp.dl.downloader.DeliverBodies(dlp.id, txs, uncles) - return nil +func (dlp *downloadTesterPeer) RequestBodies(hashes []common.Hash, sink chan *eth.Response) (*eth.Request, error) { + blobs := eth.ServiceGetBlockBodiesQuery(dlp.chain, hashes) + + bodies := make([]*eth.BlockBody, len(blobs)) + for i, blob := range blobs { + bodies[i] = new(eth.BlockBody) + rlp.DecodeBytes(blob, bodies[i]) + } + req := ð.Request{ + Peer: dlp.id, + } + res := ð.Response{ + Req: req, + Res: (*eth.BlockBodiesPacket)(&bodies), + Time: 1, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil } // RequestReceipts constructs a getReceipts method associated with a particular // peer in the download tester. The returned function can be used to retrieve // batches of block receipts from the particularly requested peer. -func (dlp *downloadTesterPeer) RequestReceipts(hashes []common.Hash) error { - receipts := dlp.chain.receipts(hashes) - go dlp.dl.downloader.DeliverReceipts(dlp.id, receipts) +func (dlp *downloadTesterPeer) RequestReceipts(hashes []common.Hash, sink chan *eth.Response) (*eth.Request, error) { + blobs := eth.ServiceGetReceiptsQuery(dlp.chain, hashes) + + receipts := make([][]*types.Receipt, len(blobs)) + for i, blob := range blobs { + rlp.DecodeBytes(blob, &receipts[i]) + } + req := ð.Request{ + Peer: dlp.id, + } + res := ð.Response{ + Req: req, + Res: (*eth.ReceiptsPacket)(&receipts), + Time: 1, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil +} + +// ID retrieves the peer's unique identifier. +func (dlp *downloadTesterPeer) ID() string { + return dlp.id +} + +// RequestAccountRange fetches a batch of accounts rooted in a specific account +// trie, starting with the origin. +func (dlp *downloadTesterPeer) RequestAccountRange(id uint64, root, origin, limit common.Hash, bytes uint64) error { + // Create the request and service it + req := &snap.GetAccountRangePacket{ + ID: id, + Root: root, + Origin: origin, + Limit: limit, + Bytes: bytes, + } + slimaccs, proofs := snap.ServiceGetAccountRangeQuery(dlp.chain, req) + + // We need to convert to non-slim format, delegate to the packet code + res := &snap.AccountRangePacket{ + ID: id, + Accounts: slimaccs, + Proof: proofs, + } + hashes, accounts, _ := res.Unpack() + + go dlp.dl.downloader.SnapSyncer.OnAccounts(dlp, id, hashes, accounts, proofs) return nil } -// RequestNodeData constructs a getNodeData method associated with a particular -// peer in the download tester. The returned function can be used to retrieve -// batches of node state data from the particularly requested peer. -func (dlp *downloadTesterPeer) RequestNodeData(hashes []common.Hash) error { - dlp.dl.lock.RLock() - defer dlp.dl.lock.RUnlock() - - results := make([][]byte, 0, len(hashes)) - for _, hash := range hashes { - if data, err := dlp.dl.peerDb.Get(hash.Bytes()); err == nil { - if !dlp.missingStates[hash] { - results = append(results, data) - } - } +// RequestStorageRanges fetches a batch of storage slots belonging to one or +// more accounts. If slots from only one accout is requested, an origin marker +// may also be used to retrieve from there. +func (dlp *downloadTesterPeer) RequestStorageRanges(id uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, bytes uint64) error { + // Create the request and service it + req := &snap.GetStorageRangesPacket{ + ID: id, + Accounts: accounts, + Root: root, + Origin: origin, + Limit: limit, + Bytes: bytes, } - go dlp.dl.downloader.DeliverNodeData(dlp.id, results) + storage, proofs := snap.ServiceGetStorageRangesQuery(dlp.chain, req) + + // We need to convert to demultiplex, delegate to the packet code + res := &snap.StorageRangesPacket{ + ID: id, + Slots: storage, + Proof: proofs, + } + hashes, slots := res.Unpack() + + go dlp.dl.downloader.SnapSyncer.OnStorage(dlp, id, hashes, slots, proofs) return nil } +// RequestByteCodes fetches a batch of bytecodes by hash. +func (dlp *downloadTesterPeer) RequestByteCodes(id uint64, hashes []common.Hash, bytes uint64) error { + req := &snap.GetByteCodesPacket{ + ID: id, + Hashes: hashes, + Bytes: bytes, + } + codes := snap.ServiceGetByteCodesQuery(dlp.chain, req) + go dlp.dl.downloader.SnapSyncer.OnByteCodes(dlp, id, codes) + return nil +} + +// RequestTrieNodes fetches a batch of account or storage trie nodes rooted in +// a specificstate trie. +func (dlp *downloadTesterPeer) RequestTrieNodes(id uint64, root common.Hash, paths []snap.TrieNodePathSet, bytes uint64) error { + req := &snap.GetTrieNodesPacket{ + ID: id, + Root: root, + Paths: paths, + Bytes: bytes, + } + nodes, _ := snap.ServiceGetTrieNodesQuery(dlp.chain, req, time.Now()) + go dlp.dl.downloader.SnapSyncer.OnTrieNodes(dlp, id, nodes) + return nil +} + +// Log retrieves the peer's own contextual logger. +func (dlp *downloadTesterPeer) Log() log.Logger { + return log.New("peer", dlp.id) +} + // assertOwnChain checks if the local chain contains the correct number of items // of the various chain components. func assertOwnChain(t *testing.T, tester *downloadTester, length int) { // Mark this method as a helper to report errors at callsite, not in here t.Helper() - assertOwnForkedChain(t, tester, 1, []int{length}) -} - -// assertOwnForkedChain checks if the local forked chain contains the correct -// number of items of the various chain components. -func assertOwnForkedChain(t *testing.T, tester *downloadTester, common int, lengths []int) { - // Mark this method as a helper to report errors at callsite, not in here - t.Helper() - - // Initialize the counters for the first fork - headers, blocks, receipts := lengths[0], lengths[0], lengths[0] - - // Update the counters for each subsequent fork - for _, length := range lengths[1:] { - headers += length - common - blocks += length - common - receipts += length - common - } + headers, blocks, receipts := length, length, length if tester.downloader.getMode() == LightSync { blocks, receipts = 1, 1 } - if hs := len(tester.ownHeaders) + len(tester.ancientHeaders) - 1; hs != headers { + if hs := int(tester.chain.CurrentHeader().Number.Uint64()) + 1; hs != headers { t.Fatalf("synchronised headers mismatch: have %v, want %v", hs, headers) } - if bs := len(tester.ownBlocks) + len(tester.ancientBlocks) - 1; bs != blocks { + if bs := int(tester.chain.CurrentBlock().NumberU64()) + 1; bs != blocks { t.Fatalf("synchronised blocks mismatch: have %v, want %v", bs, blocks) } - if rs := len(tester.ownReceipts) + len(tester.ancientReceipts) - 1; rs != receipts { + if rs := int(tester.chain.CurrentFastBlock().NumberU64()) + 1; rs != receipts { t.Fatalf("synchronised receipts mismatch: have %v, want %v", rs, receipts) } } func TestCanonicalSynchronisation66Full(t *testing.T) { testCanonSync(t, eth.ETH66, FullSync) } -func TestCanonicalSynchronisation66Fast(t *testing.T) { testCanonSync(t, eth.ETH66, FastSync) } +func TestCanonicalSynchronisation66Snap(t *testing.T) { testCanonSync(t, eth.ETH66, SnapSync) } func TestCanonicalSynchronisation66Light(t *testing.T) { testCanonSync(t, eth.ETH66, LightSync) } func testCanonSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() // Create a small enough block chain to download chain := testChainBase.shorten(blockCacheMaxItems - 15) - tester.newPeer("peer", protocol, chain) + tester.newPeer("peer", protocol, chain.blocks[1:]) // Synchronise with the peer and make sure all relevant data was retrieved if err := tester.sync("peer", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) } // Tests that if a large batch of blocks are being downloaded, it is throttled // until the cached blocks are retrieved. func TestThrottling66Full(t *testing.T) { testThrottling(t, eth.ETH66, FullSync) } -func TestThrottling66Fast(t *testing.T) { testThrottling(t, eth.ETH66, FastSync) } +func TestThrottling66Snap(t *testing.T) { testThrottling(t, eth.ETH66, SnapSync) } func testThrottling(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() tester := newTester() + defer tester.terminate() // Create a long block chain to download and the tester - targetBlocks := testChainBase.len() - 1 - tester.newPeer("peer", protocol, testChainBase) + targetBlocks := len(testChainBase.blocks) - 1 + tester.newPeer("peer", protocol, testChainBase.blocks[1:]) // Wrap the importer to allow stepping blocked, proceed := uint32(0), make(chan struct{}) @@ -571,7 +439,7 @@ func testThrottling(t *testing.T, protocol uint, mode SyncMode) { for { // Check the retrieval count synchronously (! reason for this ugly block) tester.lock.RLock() - retrieved := len(tester.ownBlocks) + retrieved := int(tester.chain.CurrentFastBlock().Number().Uint64()) + 1 tester.lock.RUnlock() if retrieved >= targetBlocks+1 { break @@ -587,7 +455,7 @@ func testThrottling(t *testing.T, protocol uint, mode SyncMode) { { cached = tester.downloader.queue.resultCache.countCompleted() frozen = int(atomic.LoadUint32(&blocked)) - retrieved = len(tester.ownBlocks) + retrieved = int(tester.chain.CurrentFastBlock().Number().Uint64()) + 1 } tester.downloader.queue.resultCache.lock.Unlock() tester.downloader.queue.lock.Unlock() @@ -603,12 +471,11 @@ func testThrottling(t *testing.T, protocol uint, mode SyncMode) { // Make sure we filled up the cache, then exhaust it time.Sleep(25 * time.Millisecond) // give it a chance to screw up tester.lock.RLock() - retrieved = len(tester.ownBlocks) + retrieved = int(tester.chain.CurrentFastBlock().Number().Uint64()) + 1 tester.lock.RUnlock() if cached != blockCacheMaxItems && cached != blockCacheMaxItems-reorgProtHeaderDelay && retrieved+cached+frozen != targetBlocks+1 && retrieved+cached+frozen != targetBlocks+1-reorgProtHeaderDelay { t.Fatalf("block count mismatch: have %v, want %v (owned %v, blocked %v, target %v)", cached, blockCacheMaxItems, retrieved, frozen, targetBlocks+1) } - // Permit the blocked blocks to import if atomic.LoadUint32(&blocked) > 0 { atomic.StoreUint32(&blocked, uint32(0)) @@ -620,93 +487,85 @@ func testThrottling(t *testing.T, protocol uint, mode SyncMode) { if err := <-errc; err != nil { t.Fatalf("block synchronization failed: %v", err) } - tester.terminate() - } // Tests that simple synchronization against a forked chain works correctly. In // this test common ancestor lookup should *not* be short circuited, and a full // binary search should be executed. func TestForkedSync66Full(t *testing.T) { testForkedSync(t, eth.ETH66, FullSync) } -func TestForkedSync66Fast(t *testing.T) { testForkedSync(t, eth.ETH66, FastSync) } +func TestForkedSync66Snap(t *testing.T) { testForkedSync(t, eth.ETH66, SnapSync) } func TestForkedSync66Light(t *testing.T) { testForkedSync(t, eth.ETH66, LightSync) } func testForkedSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() - chainA := testChainForkLightA.shorten(testChainBase.len() + 80) - chainB := testChainForkLightB.shorten(testChainBase.len() + 80) - tester.newPeer("fork A", protocol, chainA) - tester.newPeer("fork B", protocol, chainB) + chainA := testChainForkLightA.shorten(len(testChainBase.blocks) + 80) + chainB := testChainForkLightB.shorten(len(testChainBase.blocks) + 81) + tester.newPeer("fork A", protocol, chainA.blocks[1:]) + tester.newPeer("fork B", protocol, chainB.blocks[1:]) // Synchronise with the peer and make sure all blocks were retrieved if err := tester.sync("fork A", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chainA.len()) + assertOwnChain(t, tester, len(chainA.blocks)) // Synchronise with the second peer and make sure that fork is pulled too if err := tester.sync("fork B", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnForkedChain(t, tester, testChainBase.len(), []int{chainA.len(), chainB.len()}) + assertOwnChain(t, tester, len(chainB.blocks)) } // Tests that synchronising against a much shorter but much heavyer fork works // corrently and is not dropped. func TestHeavyForkedSync66Full(t *testing.T) { testHeavyForkedSync(t, eth.ETH66, FullSync) } -func TestHeavyForkedSync66Fast(t *testing.T) { testHeavyForkedSync(t, eth.ETH66, FastSync) } +func TestHeavyForkedSync66Snap(t *testing.T) { testHeavyForkedSync(t, eth.ETH66, SnapSync) } func TestHeavyForkedSync66Light(t *testing.T) { testHeavyForkedSync(t, eth.ETH66, LightSync) } func testHeavyForkedSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() - chainA := testChainForkLightA.shorten(testChainBase.len() + 80) - chainB := testChainForkHeavy.shorten(testChainBase.len() + 80) - tester.newPeer("light", protocol, chainA) - tester.newPeer("heavy", protocol, chainB) + chainA := testChainForkLightA.shorten(len(testChainBase.blocks) + 80) + chainB := testChainForkHeavy.shorten(len(testChainBase.blocks) + 79) + tester.newPeer("light", protocol, chainA.blocks[1:]) + tester.newPeer("heavy", protocol, chainB.blocks[1:]) // Synchronise with the peer and make sure all blocks were retrieved if err := tester.sync("light", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chainA.len()) + assertOwnChain(t, tester, len(chainA.blocks)) // Synchronise with the second peer and make sure that fork is pulled too if err := tester.sync("heavy", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnForkedChain(t, tester, testChainBase.len(), []int{chainA.len(), chainB.len()}) + assertOwnChain(t, tester, len(chainB.blocks)) } // Tests that chain forks are contained within a certain interval of the current // chain head, ensuring that malicious peers cannot waste resources by feeding // long dead chains. func TestBoundedForkedSync66Full(t *testing.T) { testBoundedForkedSync(t, eth.ETH66, FullSync) } -func TestBoundedForkedSync66Fast(t *testing.T) { testBoundedForkedSync(t, eth.ETH66, FastSync) } +func TestBoundedForkedSync66Snap(t *testing.T) { testBoundedForkedSync(t, eth.ETH66, SnapSync) } func TestBoundedForkedSync66Light(t *testing.T) { testBoundedForkedSync(t, eth.ETH66, LightSync) } func testBoundedForkedSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() chainA := testChainForkLightA chainB := testChainForkLightB - tester.newPeer("original", protocol, chainA) - tester.newPeer("rewriter", protocol, chainB) + tester.newPeer("original", protocol, chainA.blocks[1:]) + tester.newPeer("rewriter", protocol, chainB.blocks[1:]) // Synchronise with the peer and make sure all blocks were retrieved if err := tester.sync("original", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chainA.len()) + assertOwnChain(t, tester, len(chainA.blocks)) // Synchronise with the second peer and ensure that the fork is rejected to being too old if err := tester.sync("rewriter", nil, mode); err != errInvalidAncestor { @@ -720,69 +579,46 @@ func testBoundedForkedSync(t *testing.T, protocol uint, mode SyncMode) { func TestBoundedHeavyForkedSync66Full(t *testing.T) { testBoundedHeavyForkedSync(t, eth.ETH66, FullSync) } -func TestBoundedHeavyForkedSync66Fast(t *testing.T) { - testBoundedHeavyForkedSync(t, eth.ETH66, FastSync) +func TestBoundedHeavyForkedSync66Snap(t *testing.T) { + testBoundedHeavyForkedSync(t, eth.ETH66, SnapSync) } func TestBoundedHeavyForkedSync66Light(t *testing.T) { testBoundedHeavyForkedSync(t, eth.ETH66, LightSync) } func testBoundedHeavyForkedSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() tester := newTester() + defer tester.terminate() // Create a long enough forked chain chainA := testChainForkLightA chainB := testChainForkHeavy - tester.newPeer("original", protocol, chainA) + tester.newPeer("original", protocol, chainA.blocks[1:]) // Synchronise with the peer and make sure all blocks were retrieved if err := tester.sync("original", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chainA.len()) + assertOwnChain(t, tester, len(chainA.blocks)) - tester.newPeer("heavy-rewriter", protocol, chainB) + tester.newPeer("heavy-rewriter", protocol, chainB.blocks[1:]) // Synchronise with the second peer and ensure that the fork is rejected to being too old if err := tester.sync("heavy-rewriter", nil, mode); err != errInvalidAncestor { t.Fatalf("sync failure mismatch: have %v, want %v", err, errInvalidAncestor) } - tester.terminate() -} - -// Tests that an inactive downloader will not accept incoming block headers, -// bodies and receipts. -func TestInactiveDownloader63(t *testing.T) { - t.Parallel() - - tester := newTester() - defer tester.terminate() - - // Check that neither block headers nor bodies are accepted - if err := tester.downloader.DeliverHeaders("bad peer", []*types.Header{}); err != errNoSyncActive { - t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive) - } - if err := tester.downloader.DeliverBodies("bad peer", [][]*types.Transaction{}, [][]*types.Header{}); err != errNoSyncActive { - t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive) - } - if err := tester.downloader.DeliverReceipts("bad peer", [][]*types.Receipt{}); err != errNoSyncActive { - t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive) - } } // Tests that a canceled download wipes all previously accumulated state. func TestCancel66Full(t *testing.T) { testCancel(t, eth.ETH66, FullSync) } -func TestCancel66Fast(t *testing.T) { testCancel(t, eth.ETH66, FastSync) } +func TestCancel66Snap(t *testing.T) { testCancel(t, eth.ETH66, SnapSync) } func TestCancel66Light(t *testing.T) { testCancel(t, eth.ETH66, LightSync) } func testCancel(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() chain := testChainBase.shorten(MaxHeaderFetch) - tester.newPeer("peer", protocol, chain) + tester.newPeer("peer", protocol, chain.blocks[1:]) // Make sure canceling works with a pristine downloader tester.downloader.Cancel() @@ -801,12 +637,10 @@ func testCancel(t *testing.T, protocol uint, mode SyncMode) { // Tests that synchronisation from multiple peers works as intended (multi thread sanity test). func TestMultiSynchronisation66Full(t *testing.T) { testMultiSynchronisation(t, eth.ETH66, FullSync) } -func TestMultiSynchronisation66Fast(t *testing.T) { testMultiSynchronisation(t, eth.ETH66, FastSync) } +func TestMultiSynchronisation66Snap(t *testing.T) { testMultiSynchronisation(t, eth.ETH66, SnapSync) } func TestMultiSynchronisation66Light(t *testing.T) { testMultiSynchronisation(t, eth.ETH66, LightSync) } func testMultiSynchronisation(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() @@ -816,23 +650,21 @@ func testMultiSynchronisation(t *testing.T, protocol uint, mode SyncMode) { for i := 0; i < targetPeers; i++ { id := fmt.Sprintf("peer #%d", i) - tester.newPeer(id, protocol, chain.shorten(chain.len()/(i+1))) + tester.newPeer(id, protocol, chain.shorten(len(chain.blocks) / (i + 1)).blocks[1:]) } if err := tester.sync("peer #0", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) } // Tests that synchronisations behave well in multi-version protocol environments // and not wreak havoc on other nodes in the network. func TestMultiProtoSynchronisation66Full(t *testing.T) { testMultiProtoSync(t, eth.ETH66, FullSync) } -func TestMultiProtoSynchronisation66Fast(t *testing.T) { testMultiProtoSync(t, eth.ETH66, FastSync) } +func TestMultiProtoSynchronisation66Snap(t *testing.T) { testMultiProtoSync(t, eth.ETH66, SnapSync) } func TestMultiProtoSynchronisation66Light(t *testing.T) { testMultiProtoSync(t, eth.ETH66, LightSync) } func testMultiProtoSync(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() @@ -840,14 +672,14 @@ func testMultiProtoSync(t *testing.T, protocol uint, mode SyncMode) { chain := testChainBase.shorten(blockCacheMaxItems - 15) // Create peers of every type - tester.newPeer("peer 66", eth.ETH66, chain) - //tester.newPeer("peer 65", eth.ETH67, chain) + tester.newPeer("peer 66", eth.ETH66, chain.blocks[1:]) + //tester.newPeer("peer 65", eth.ETH67, chain.blocks[1:) // Synchronise with the requested peer and make sure all blocks were retrieved if err := tester.sync(fmt.Sprintf("peer %d", protocol), nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) // Check that no peers have been dropped off for _, version := range []int{66} { @@ -861,18 +693,16 @@ func testMultiProtoSync(t *testing.T, protocol uint, mode SyncMode) { // Tests that if a block is empty (e.g. header only), no body request should be // made, and instead the header should be assembled into a whole block in itself. func TestEmptyShortCircuit66Full(t *testing.T) { testEmptyShortCircuit(t, eth.ETH66, FullSync) } -func TestEmptyShortCircuit66Fast(t *testing.T) { testEmptyShortCircuit(t, eth.ETH66, FastSync) } +func TestEmptyShortCircuit66Snap(t *testing.T) { testEmptyShortCircuit(t, eth.ETH66, SnapSync) } func TestEmptyShortCircuit66Light(t *testing.T) { testEmptyShortCircuit(t, eth.ETH66, LightSync) } func testEmptyShortCircuit(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() // Create a block chain to download chain := testChainBase - tester.newPeer("peer", protocol, chain) + tester.newPeer("peer", protocol, chain.blocks[1:]) // Instrument the downloader to signal body requests bodiesHave, receiptsHave := int32(0), int32(0) @@ -886,17 +716,17 @@ func testEmptyShortCircuit(t *testing.T, protocol uint, mode SyncMode) { if err := tester.sync("peer", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) // Validate the number of block bodies that should have been requested bodiesNeeded, receiptsNeeded := 0, 0 - for _, block := range chain.blockm { - if mode != LightSync && block != tester.genesis && (len(block.Transactions()) > 0 || len(block.Uncles()) > 0) { + for _, block := range chain.blocks[1:] { + if mode != LightSync && (len(block.Transactions()) > 0 || len(block.Uncles()) > 0) { bodiesNeeded++ } } - for _, receipt := range chain.receiptm { - if mode == FastSync && len(receipt) > 0 { + for _, block := range chain.blocks[1:] { + if mode == SnapSync && len(block.Transactions()) > 0 { receiptsNeeded++ } } @@ -911,72 +741,64 @@ func testEmptyShortCircuit(t *testing.T, protocol uint, mode SyncMode) { // Tests that headers are enqueued continuously, preventing malicious nodes from // stalling the downloader by feeding gapped header chains. func TestMissingHeaderAttack66Full(t *testing.T) { testMissingHeaderAttack(t, eth.ETH66, FullSync) } -func TestMissingHeaderAttack66Fast(t *testing.T) { testMissingHeaderAttack(t, eth.ETH66, FastSync) } +func TestMissingHeaderAttack66Snap(t *testing.T) { testMissingHeaderAttack(t, eth.ETH66, SnapSync) } func TestMissingHeaderAttack66Light(t *testing.T) { testMissingHeaderAttack(t, eth.ETH66, LightSync) } func testMissingHeaderAttack(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() chain := testChainBase.shorten(blockCacheMaxItems - 15) - brokenChain := chain.shorten(chain.len()) - delete(brokenChain.headerm, brokenChain.chain[brokenChain.len()/2]) - tester.newPeer("attack", protocol, brokenChain) + + attacker := tester.newPeer("attack", protocol, chain.blocks[1:]) + attacker.withholdHeaders[chain.blocks[len(chain.blocks)/2-1].Hash()] = struct{}{} if err := tester.sync("attack", nil, mode); err == nil { t.Fatalf("succeeded attacker synchronisation") } // Synchronise with the valid peer and make sure sync succeeds - tester.newPeer("valid", protocol, chain) + tester.newPeer("valid", protocol, chain.blocks[1:]) if err := tester.sync("valid", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) } // Tests that if requested headers are shifted (i.e. first is missing), the queue // detects the invalid numbering. func TestShiftedHeaderAttack66Full(t *testing.T) { testShiftedHeaderAttack(t, eth.ETH66, FullSync) } -func TestShiftedHeaderAttack66Fast(t *testing.T) { testShiftedHeaderAttack(t, eth.ETH66, FastSync) } +func TestShiftedHeaderAttack66Snap(t *testing.T) { testShiftedHeaderAttack(t, eth.ETH66, SnapSync) } func TestShiftedHeaderAttack66Light(t *testing.T) { testShiftedHeaderAttack(t, eth.ETH66, LightSync) } func testShiftedHeaderAttack(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() chain := testChainBase.shorten(blockCacheMaxItems - 15) // Attempt a full sync with an attacker feeding shifted headers - brokenChain := chain.shorten(chain.len()) - delete(brokenChain.headerm, brokenChain.chain[1]) - delete(brokenChain.blockm, brokenChain.chain[1]) - delete(brokenChain.receiptm, brokenChain.chain[1]) - tester.newPeer("attack", protocol, brokenChain) + attacker := tester.newPeer("attack", protocol, chain.blocks[1:]) + attacker.withholdHeaders[chain.blocks[1].Hash()] = struct{}{} + if err := tester.sync("attack", nil, mode); err == nil { t.Fatalf("succeeded attacker synchronisation") } - // Synchronise with the valid peer and make sure sync succeeds - tester.newPeer("valid", protocol, chain) + tester.newPeer("valid", protocol, chain.blocks[1:]) if err := tester.sync("valid", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) } // Tests that upon detecting an invalid header, the recent ones are rolled back // for various failure scenarios. Afterwards a full sync is attempted to make // sure no state was corrupted. -func TestInvalidHeaderRollback66Fast(t *testing.T) { testInvalidHeaderRollback(t, eth.ETH66, FastSync) } +func TestInvalidHeaderRollback66Snap(t *testing.T) { testInvalidHeaderRollback(t, eth.ETH66, SnapSync) } func testInvalidHeaderRollback(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() + defer tester.terminate() // Create a small enough block chain to download targetBlocks := 3*fsHeaderSafetyNet + 256 + fsMinFullBlocks @@ -985,78 +807,67 @@ func testInvalidHeaderRollback(t *testing.T, protocol uint, mode SyncMode) { // Attempt to sync with an attacker that feeds junk during the fast sync phase. // This should result in the last fsHeaderSafetyNet headers being rolled back. missing := fsHeaderSafetyNet + MaxHeaderFetch + 1 - fastAttackChain := chain.shorten(chain.len()) - delete(fastAttackChain.headerm, fastAttackChain.chain[missing]) - tester.newPeer("fast-attack", protocol, fastAttackChain) + + fastAttacker := tester.newPeer("fast-attack", protocol, chain.blocks[1:]) + fastAttacker.withholdHeaders[chain.blocks[missing].Hash()] = struct{}{} if err := tester.sync("fast-attack", nil, mode); err == nil { t.Fatalf("succeeded fast attacker synchronisation") } - if head := tester.CurrentHeader().Number.Int64(); int(head) > MaxHeaderFetch { + if head := tester.chain.CurrentHeader().Number.Int64(); int(head) > MaxHeaderFetch { t.Errorf("rollback head mismatch: have %v, want at most %v", head, MaxHeaderFetch) } - // Attempt to sync with an attacker that feeds junk during the block import phase. // This should result in both the last fsHeaderSafetyNet number of headers being // rolled back, and also the pivot point being reverted to a non-block status. missing = 3*fsHeaderSafetyNet + MaxHeaderFetch + 1 - blockAttackChain := chain.shorten(chain.len()) - delete(fastAttackChain.headerm, fastAttackChain.chain[missing]) // Make sure the fast-attacker doesn't fill in - delete(blockAttackChain.headerm, blockAttackChain.chain[missing]) - tester.newPeer("block-attack", protocol, blockAttackChain) + + blockAttacker := tester.newPeer("block-attack", protocol, chain.blocks[1:]) + fastAttacker.withholdHeaders[chain.blocks[missing].Hash()] = struct{}{} // Make sure the fast-attacker doesn't fill in + blockAttacker.withholdHeaders[chain.blocks[missing].Hash()] = struct{}{} if err := tester.sync("block-attack", nil, mode); err == nil { t.Fatalf("succeeded block attacker synchronisation") } - if head := tester.CurrentHeader().Number.Int64(); int(head) > 2*fsHeaderSafetyNet+MaxHeaderFetch { + if head := tester.chain.CurrentHeader().Number.Int64(); int(head) > 2*fsHeaderSafetyNet+MaxHeaderFetch { t.Errorf("rollback head mismatch: have %v, want at most %v", head, 2*fsHeaderSafetyNet+MaxHeaderFetch) } - if mode == FastSync { - if head := tester.CurrentBlock().NumberU64(); head != 0 { + if mode == SnapSync { + if head := tester.chain.CurrentBlock().NumberU64(); head != 0 { t.Errorf("fast sync pivot block #%d not rolled back", head) } } - // Attempt to sync with an attacker that withholds promised blocks after the // fast sync pivot point. This could be a trial to leave the node with a bad // but already imported pivot block. - withholdAttackChain := chain.shorten(chain.len()) - tester.newPeer("withhold-attack", protocol, withholdAttackChain) + withholdAttacker := tester.newPeer("withhold-attack", protocol, chain.blocks[1:]) + tester.downloader.syncInitHook = func(uint64, uint64) { - for i := missing; i < withholdAttackChain.len(); i++ { - delete(withholdAttackChain.headerm, withholdAttackChain.chain[i]) + for i := missing; i < len(chain.blocks); i++ { + withholdAttacker.withholdHeaders[chain.blocks[i].Hash()] = struct{}{} } tester.downloader.syncInitHook = nil } if err := tester.sync("withhold-attack", nil, mode); err == nil { t.Fatalf("succeeded withholding attacker synchronisation") } - if head := tester.CurrentHeader().Number.Int64(); int(head) > 2*fsHeaderSafetyNet+MaxHeaderFetch { + if head := tester.chain.CurrentHeader().Number.Int64(); int(head) > 2*fsHeaderSafetyNet+MaxHeaderFetch { t.Errorf("rollback head mismatch: have %v, want at most %v", head, 2*fsHeaderSafetyNet+MaxHeaderFetch) } - if mode == FastSync { - if head := tester.CurrentBlock().NumberU64(); head != 0 { + if mode == SnapSync { + if head := tester.chain.CurrentBlock().NumberU64(); head != 0 { t.Errorf("fast sync pivot block #%d not rolled back", head) } } - - // synchronise with the valid peer and make sure sync succeeds. Since the last rollback + // Synchronise with the valid peer and make sure sync succeeds. Since the last rollback // should also disable fast syncing for this process, verify that we did a fresh full // sync. Note, we can't assert anything about the receipts since we won't purge the // database of them, hence we can't use assertOwnChain. - tester.newPeer("valid", protocol, chain) + tester.newPeer("valid", protocol, chain.blocks[1:]) if err := tester.sync("valid", nil, mode); err != nil { t.Fatalf("failed to synchronise blocks: %v", err) } - if hs := len(tester.ownHeaders); hs != chain.len() { - t.Fatalf("synchronised headers mismatch: have %v, want %v", hs, chain.len()) - } - if mode != LightSync { - if bs := len(tester.ownBlocks); bs != chain.len() { - t.Fatalf("synchronised blocks mismatch: have %v, want %v", bs, chain.len()) - } - } - tester.terminate() + assertOwnChain(t, tester, len(chain.blocks)) } // Tests that a peer advertising a high TD doesn't get to stall the downloader @@ -1064,32 +875,28 @@ func testInvalidHeaderRollback(t *testing.T, protocol uint, mode SyncMode) { func TestHighTDStarvationAttack66Full(t *testing.T) { testHighTDStarvationAttack(t, eth.ETH66, FullSync) } -func TestHighTDStarvationAttack66Fast(t *testing.T) { - testHighTDStarvationAttack(t, eth.ETH66, FastSync) +func TestHighTDStarvationAttack66Snap(t *testing.T) { + testHighTDStarvationAttack(t, eth.ETH66, SnapSync) } func TestHighTDStarvationAttack66Light(t *testing.T) { testHighTDStarvationAttack(t, eth.ETH66, LightSync) } func testHighTDStarvationAttack(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() + defer tester.terminate() chain := testChainBase.shorten(1) - tester.newPeer("attack", protocol, chain) + tester.newPeer("attack", protocol, chain.blocks[1:]) if err := tester.sync("attack", big.NewInt(1000000), mode); err != errStallingPeer { t.Fatalf("synchronisation error mismatch: have %v, want %v", err, errStallingPeer) } - tester.terminate() } // Tests that misbehaving peers are disconnected, whilst behaving ones are not. func TestBlockHeaderAttackerDropping66(t *testing.T) { testBlockHeaderAttackerDropping(t, eth.ETH66) } func testBlockHeaderAttackerDropping(t *testing.T, protocol uint) { - t.Parallel() - // Define the disconnection requirement for individual hash fetch errors tests := []struct { result error @@ -1119,16 +926,14 @@ func testBlockHeaderAttackerDropping(t *testing.T, protocol uint) { for i, tt := range tests { // Register a new peer and ensure its presence id := fmt.Sprintf("test %d", i) - if err := tester.newPeer(id, protocol, chain); err != nil { - t.Fatalf("test %d: failed to register new peer: %v", i, err) - } + tester.newPeer(id, protocol, chain.blocks[1:]) if _, ok := tester.peers[id]; !ok { t.Fatalf("test %d: registered peer not found", i) } // Simulate a synchronisation and check the required result tester.downloader.synchroniseMock = func(string, common.Hash) error { return tt.result } - tester.downloader.Synchronise(id, tester.genesis.Hash(), big.NewInt(1000), FullSync) + tester.downloader.Synchronise(id, tester.chain.Genesis().Hash(), big.NewInt(1000), FullSync) if _, ok := tester.peers[id]; !ok != tt.drop { t.Errorf("test %d: peer drop mismatch for %v: have %v, want %v", i, tt.result, !ok, tt.drop) } @@ -1138,14 +943,13 @@ func testBlockHeaderAttackerDropping(t *testing.T, protocol uint) { // Tests that synchronisation progress (origin block number, current block number // and highest block number) is tracked and updated correctly. func TestSyncProgress66Full(t *testing.T) { testSyncProgress(t, eth.ETH66, FullSync) } -func TestSyncProgress66Fast(t *testing.T) { testSyncProgress(t, eth.ETH66, FastSync) } +func TestSyncProgress66Snap(t *testing.T) { testSyncProgress(t, eth.ETH66, SnapSync) } func TestSyncProgress66Light(t *testing.T) { testSyncProgress(t, eth.ETH66, LightSync) } func testSyncProgress(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() + chain := testChainBase.shorten(blockCacheMaxItems - 15) // Set a sync init hook to catch progress changes @@ -1159,7 +963,7 @@ func testSyncProgress(t *testing.T, protocol uint, mode SyncMode) { checkProgress(t, tester.downloader, "pristine", ethereum.SyncProgress{}) // Synchronise half the blocks and check initial progress - tester.newPeer("peer-half", protocol, chain.shorten(chain.len()/2)) + tester.newPeer("peer-half", protocol, chain.shorten(len(chain.blocks) / 2).blocks[1:]) pending := new(sync.WaitGroup) pending.Add(1) @@ -1171,13 +975,13 @@ func testSyncProgress(t *testing.T, protocol uint, mode SyncMode) { }() <-starting checkProgress(t, tester.downloader, "initial", ethereum.SyncProgress{ - HighestBlock: uint64(chain.len()/2 - 1), + HighestBlock: uint64(len(chain.blocks)/2 - 1), }) progress <- struct{}{} pending.Wait() // Synchronise all the blocks and check continuation progress - tester.newPeer("peer-full", protocol, chain) + tester.newPeer("peer-full", protocol, chain.blocks[1:]) pending.Add(1) go func() { defer pending.Done() @@ -1187,18 +991,18 @@ func testSyncProgress(t *testing.T, protocol uint, mode SyncMode) { }() <-starting checkProgress(t, tester.downloader, "completing", ethereum.SyncProgress{ - StartingBlock: uint64(chain.len()/2 - 1), - CurrentBlock: uint64(chain.len()/2 - 1), - HighestBlock: uint64(chain.len() - 1), + StartingBlock: uint64(len(chain.blocks)/2 - 1), + CurrentBlock: uint64(len(chain.blocks)/2 - 1), + HighestBlock: uint64(len(chain.blocks) - 1), }) // Check final progress after successful sync progress <- struct{}{} pending.Wait() checkProgress(t, tester.downloader, "final", ethereum.SyncProgress{ - StartingBlock: uint64(chain.len()/2 - 1), - CurrentBlock: uint64(chain.len() - 1), - HighestBlock: uint64(chain.len() - 1), + StartingBlock: uint64(len(chain.blocks)/2 - 1), + CurrentBlock: uint64(len(chain.blocks) - 1), + HighestBlock: uint64(len(chain.blocks) - 1), }) } @@ -1207,9 +1011,7 @@ func checkProgress(t *testing.T, d *Downloader, stage string, want ethereum.Sync t.Helper() p := d.Progress() - p.KnownStates, p.PulledStates = 0, 0 - want.KnownStates, want.PulledStates = 0, 0 - if p != want { + if p.StartingBlock != want.StartingBlock || p.CurrentBlock != want.CurrentBlock || p.HighestBlock != want.HighestBlock { t.Fatalf("%s progress mismatch:\nhave %+v\nwant %+v", stage, p, want) } } @@ -1218,16 +1020,15 @@ func checkProgress(t *testing.T, d *Downloader, stage string, want ethereum.Sync // number) is tracked and updated correctly in case of a fork (or manual head // revertal). func TestForkedSyncProgress66Full(t *testing.T) { testForkedSyncProgress(t, eth.ETH66, FullSync) } -func TestForkedSyncProgress66Fast(t *testing.T) { testForkedSyncProgress(t, eth.ETH66, FastSync) } +func TestForkedSyncProgress66Snap(t *testing.T) { testForkedSyncProgress(t, eth.ETH66, SnapSync) } func TestForkedSyncProgress66Light(t *testing.T) { testForkedSyncProgress(t, eth.ETH66, LightSync) } func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() - chainA := testChainForkLightA.shorten(testChainBase.len() + MaxHeaderFetch) - chainB := testChainForkLightB.shorten(testChainBase.len() + MaxHeaderFetch) + + chainA := testChainForkLightA.shorten(len(testChainBase.blocks) + MaxHeaderFetch) + chainB := testChainForkLightB.shorten(len(testChainBase.blocks) + MaxHeaderFetch) // Set a sync init hook to catch progress changes starting := make(chan struct{}) @@ -1240,7 +1041,7 @@ func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { checkProgress(t, tester.downloader, "pristine", ethereum.SyncProgress{}) // Synchronise with one of the forks and check progress - tester.newPeer("fork A", protocol, chainA) + tester.newPeer("fork A", protocol, chainA.blocks[1:]) pending := new(sync.WaitGroup) pending.Add(1) go func() { @@ -1252,7 +1053,7 @@ func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { <-starting checkProgress(t, tester.downloader, "initial", ethereum.SyncProgress{ - HighestBlock: uint64(chainA.len() - 1), + HighestBlock: uint64(len(chainA.blocks) - 1), }) progress <- struct{}{} pending.Wait() @@ -1261,7 +1062,7 @@ func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { tester.downloader.syncStatsChainOrigin = tester.downloader.syncStatsChainHeight // Synchronise with the second fork and check progress resets - tester.newPeer("fork B", protocol, chainB) + tester.newPeer("fork B", protocol, chainB.blocks[1:]) pending.Add(1) go func() { defer pending.Done() @@ -1271,18 +1072,18 @@ func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { }() <-starting checkProgress(t, tester.downloader, "forking", ethereum.SyncProgress{ - StartingBlock: uint64(testChainBase.len()) - 1, - CurrentBlock: uint64(chainA.len() - 1), - HighestBlock: uint64(chainB.len() - 1), + StartingBlock: uint64(len(testChainBase.blocks)) - 1, + CurrentBlock: uint64(len(chainA.blocks) - 1), + HighestBlock: uint64(len(chainB.blocks) - 1), }) // Check final progress after successful sync progress <- struct{}{} pending.Wait() checkProgress(t, tester.downloader, "final", ethereum.SyncProgress{ - StartingBlock: uint64(testChainBase.len()) - 1, - CurrentBlock: uint64(chainB.len() - 1), - HighestBlock: uint64(chainB.len() - 1), + StartingBlock: uint64(len(testChainBase.blocks)) - 1, + CurrentBlock: uint64(len(chainB.blocks) - 1), + HighestBlock: uint64(len(chainB.blocks) - 1), }) } @@ -1290,14 +1091,13 @@ func testForkedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { // origin is not updated in the next sync cycle, as it should be considered the // continuation of the previous sync and not a new instance. func TestFailedSyncProgress66Full(t *testing.T) { testFailedSyncProgress(t, eth.ETH66, FullSync) } -func TestFailedSyncProgress66Fast(t *testing.T) { testFailedSyncProgress(t, eth.ETH66, FastSync) } +func TestFailedSyncProgress66Snap(t *testing.T) { testFailedSyncProgress(t, eth.ETH66, SnapSync) } func TestFailedSyncProgress66Light(t *testing.T) { testFailedSyncProgress(t, eth.ETH66, LightSync) } func testFailedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() + chain := testChainBase.shorten(blockCacheMaxItems - 15) // Set a sync init hook to catch progress changes @@ -1311,12 +1111,10 @@ func testFailedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { checkProgress(t, tester.downloader, "pristine", ethereum.SyncProgress{}) // Attempt a full sync with a faulty peer - brokenChain := chain.shorten(chain.len()) - missing := brokenChain.len() / 2 - delete(brokenChain.headerm, brokenChain.chain[missing]) - delete(brokenChain.blockm, brokenChain.chain[missing]) - delete(brokenChain.receiptm, brokenChain.chain[missing]) - tester.newPeer("faulty", protocol, brokenChain) + missing := len(chain.blocks)/2 - 1 + + faulter := tester.newPeer("faulty", protocol, chain.blocks[1:]) + faulter.withholdHeaders[chain.blocks[missing].Hash()] = struct{}{} pending := new(sync.WaitGroup) pending.Add(1) @@ -1328,7 +1126,7 @@ func testFailedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { }() <-starting checkProgress(t, tester.downloader, "initial", ethereum.SyncProgress{ - HighestBlock: uint64(brokenChain.len() - 1), + HighestBlock: uint64(len(chain.blocks) - 1), }) progress <- struct{}{} pending.Wait() @@ -1336,7 +1134,7 @@ func testFailedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { // Synchronise with a good peer and check that the progress origin remind the same // after a failure - tester.newPeer("valid", protocol, chain) + tester.newPeer("valid", protocol, chain.blocks[1:]) pending.Add(1) go func() { defer pending.Done() @@ -1351,22 +1149,21 @@ func testFailedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { progress <- struct{}{} pending.Wait() checkProgress(t, tester.downloader, "final", ethereum.SyncProgress{ - CurrentBlock: uint64(chain.len() - 1), - HighestBlock: uint64(chain.len() - 1), + CurrentBlock: uint64(len(chain.blocks) - 1), + HighestBlock: uint64(len(chain.blocks) - 1), }) } // Tests that if an attacker fakes a chain height, after the attack is detected, // the progress height is successfully reduced at the next sync invocation. func TestFakedSyncProgress66Full(t *testing.T) { testFakedSyncProgress(t, eth.ETH66, FullSync) } -func TestFakedSyncProgress66Fast(t *testing.T) { testFakedSyncProgress(t, eth.ETH66, FastSync) } +func TestFakedSyncProgress66Snap(t *testing.T) { testFakedSyncProgress(t, eth.ETH66, SnapSync) } func TestFakedSyncProgress66Light(t *testing.T) { testFakedSyncProgress(t, eth.ETH66, LightSync) } func testFakedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - tester := newTester() defer tester.terminate() + chain := testChainBase.shorten(blockCacheMaxItems - 15) // Set a sync init hook to catch progress changes @@ -1379,13 +1176,11 @@ func testFakedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { checkProgress(t, tester.downloader, "pristine", ethereum.SyncProgress{}) // Create and sync with an attacker that promises a higher chain than available. - brokenChain := chain.shorten(chain.len()) + attacker := tester.newPeer("attack", protocol, chain.blocks[1:]) numMissing := 5 - for i := brokenChain.len() - 2; i > brokenChain.len()-numMissing; i-- { - delete(brokenChain.headerm, brokenChain.chain[i]) + for i := len(chain.blocks) - 2; i > len(chain.blocks)-numMissing; i-- { + attacker.withholdHeaders[chain.blocks[i].Hash()] = struct{}{} } - tester.newPeer("attack", protocol, brokenChain) - pending := new(sync.WaitGroup) pending.Add(1) go func() { @@ -1396,7 +1191,7 @@ func testFakedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { }() <-starting checkProgress(t, tester.downloader, "initial", ethereum.SyncProgress{ - HighestBlock: uint64(brokenChain.len() - 1), + HighestBlock: uint64(len(chain.blocks) - 1), }) progress <- struct{}{} pending.Wait() @@ -1404,8 +1199,8 @@ func testFakedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { // Synchronise with a good peer and check that the progress height has been reduced to // the true value. - validChain := chain.shorten(chain.len() - numMissing) - tester.newPeer("valid", protocol, validChain) + validChain := chain.shorten(len(chain.blocks) - numMissing) + tester.newPeer("valid", protocol, validChain.blocks[1:]) pending.Add(1) go func() { @@ -1417,100 +1212,17 @@ func testFakedSyncProgress(t *testing.T, protocol uint, mode SyncMode) { <-starting checkProgress(t, tester.downloader, "completing", ethereum.SyncProgress{ CurrentBlock: afterFailedSync.CurrentBlock, - HighestBlock: uint64(validChain.len() - 1), + HighestBlock: uint64(len(validChain.blocks) - 1), }) - // Check final progress after successful sync. progress <- struct{}{} pending.Wait() checkProgress(t, tester.downloader, "final", ethereum.SyncProgress{ - CurrentBlock: uint64(validChain.len() - 1), - HighestBlock: uint64(validChain.len() - 1), + CurrentBlock: uint64(len(validChain.blocks) - 1), + HighestBlock: uint64(len(validChain.blocks) - 1), }) } -// This test reproduces an issue where unexpected deliveries would -// block indefinitely if they arrived at the right time. -func TestDeliverHeadersHang66Full(t *testing.T) { testDeliverHeadersHang(t, eth.ETH66, FullSync) } -func TestDeliverHeadersHang66Fast(t *testing.T) { testDeliverHeadersHang(t, eth.ETH66, FastSync) } -func TestDeliverHeadersHang66Light(t *testing.T) { testDeliverHeadersHang(t, eth.ETH66, LightSync) } - -func testDeliverHeadersHang(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - - master := newTester() - defer master.terminate() - chain := testChainBase.shorten(15) - - for i := 0; i < 200; i++ { - tester := newTester() - tester.peerDb = master.peerDb - tester.newPeer("peer", protocol, chain) - - // Whenever the downloader requests headers, flood it with - // a lot of unrequested header deliveries. - tester.downloader.peers.peers["peer"].peer = &floodingTestPeer{ - peer: tester.downloader.peers.peers["peer"].peer, - tester: tester, - } - if err := tester.sync("peer", nil, mode); err != nil { - t.Errorf("test %d: sync failed: %v", i, err) - } - tester.terminate() - } -} - -type floodingTestPeer struct { - peer Peer - tester *downloadTester -} - -func (ftp *floodingTestPeer) Head() (common.Hash, *big.Int) { return ftp.peer.Head() } -func (ftp *floodingTestPeer) RequestHeadersByHash(hash common.Hash, count int, skip int, reverse bool) error { - return ftp.peer.RequestHeadersByHash(hash, count, skip, reverse) -} -func (ftp *floodingTestPeer) RequestBodies(hashes []common.Hash) error { - return ftp.peer.RequestBodies(hashes) -} -func (ftp *floodingTestPeer) RequestReceipts(hashes []common.Hash) error { - return ftp.peer.RequestReceipts(hashes) -} -func (ftp *floodingTestPeer) RequestNodeData(hashes []common.Hash) error { - return ftp.peer.RequestNodeData(hashes) -} - -func (ftp *floodingTestPeer) RequestHeadersByNumber(from uint64, count, skip int, reverse bool) error { - deliveriesDone := make(chan struct{}, 500) - for i := 0; i < cap(deliveriesDone)-1; i++ { - peer := fmt.Sprintf("fake-peer%d", i) - go func() { - ftp.tester.downloader.DeliverHeaders(peer, []*types.Header{{}, {}, {}, {}}) - deliveriesDone <- struct{}{} - }() - } - - // None of the extra deliveries should block. - timeout := time.After(60 * time.Second) - launched := false - for i := 0; i < cap(deliveriesDone); i++ { - select { - case <-deliveriesDone: - if !launched { - // Start delivering the requested headers - // after one of the flooding responses has arrived. - go func() { - ftp.peer.RequestHeadersByNumber(from, count, skip, reverse) - deliveriesDone <- struct{}{} - }() - launched = true - } - case <-timeout: - panic("blocked") - } - } - return nil -} - func TestRemoteHeaderRequestSpan(t *testing.T) { testCases := []struct { remoteHeight uint64 @@ -1589,14 +1301,12 @@ func TestRemoteHeaderRequestSpan(t *testing.T) { // Tests that peers below a pre-configured checkpoint block are prevented from // being fast-synced from, avoiding potential cheap eclipse attacks. func TestCheckpointEnforcement66Full(t *testing.T) { testCheckpointEnforcement(t, eth.ETH66, FullSync) } -func TestCheckpointEnforcement66Fast(t *testing.T) { testCheckpointEnforcement(t, eth.ETH66, FastSync) } +func TestCheckpointEnforcement66Snap(t *testing.T) { testCheckpointEnforcement(t, eth.ETH66, SnapSync) } func TestCheckpointEnforcement66Light(t *testing.T) { testCheckpointEnforcement(t, eth.ETH66, LightSync) } func testCheckpointEnforcement(t *testing.T, protocol uint, mode SyncMode) { - t.Parallel() - // Create a new tester with a particular hard coded checkpoint block tester := newTester() defer tester.terminate() @@ -1605,18 +1315,18 @@ func testCheckpointEnforcement(t *testing.T, protocol uint, mode SyncMode) { chain := testChainBase.shorten(int(tester.downloader.checkpoint) - 1) // Attempt to sync with the peer and validate the result - tester.newPeer("peer", protocol, chain) + tester.newPeer("peer", protocol, chain.blocks[1:]) var expect error - if mode == FastSync || mode == LightSync { + if mode == SnapSync || mode == LightSync { expect = errUnsyncedPeer } if err := tester.sync("peer", nil, mode); !errors.Is(err, expect) { t.Fatalf("block sync error mismatch: have %v, want %v", err, expect) } - if mode == FastSync || mode == LightSync { + if mode == SnapSync || mode == LightSync { assertOwnChain(t, tester, 1) } else { - assertOwnChain(t, tester, chain.len()) + assertOwnChain(t, tester, len(chain.blocks)) } } diff --git a/eth/downloader/fetchers.go b/eth/downloader/fetchers.go new file mode 100644 index 000000000..fe309b179 --- /dev/null +++ b/eth/downloader/fetchers.go @@ -0,0 +1,115 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package downloader + +import ( + "time" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/eth/protocols/eth" +) + +// fetchHeadersByHash is a blocking version of Peer.RequestHeadersByHash which +// handles all the cancellation, interruption and timeout mechanisms of a data +// retrieval to allow blocking API calls. +func (d *Downloader) fetchHeadersByHash(p *peerConnection, hash common.Hash, amount int, skip int, reverse bool) ([]*types.Header, error) { + // Create the response sink and send the network request + start := time.Now() + resCh := make(chan *eth.Response) + + req, err := p.peer.RequestHeadersByHash(hash, amount, skip, reverse, resCh) + if err != nil { + return nil, err + } + defer req.Close() + + // Wait until the response arrives, the request is cancelled or times out + ttl := d.peers.rates.TargetTimeout() + + timeoutTimer := time.NewTimer(ttl) + defer timeoutTimer.Stop() + + select { + case <-d.cancelCh: + return nil, errCanceled + + case <-timeoutTimer.C: + // Header retrieval timed out, update the metrics + p.log.Debug("Header request timed out", "elapsed", ttl) + headerTimeoutMeter.Mark(1) + + return nil, errTimeout + + case res := <-resCh: + // Headers successfully retrieved, update the metrics + headerReqTimer.Update(time.Since(start)) + headerInMeter.Mark(int64(len(*res.Res.(*eth.BlockHeadersPacket)))) + + // Don't reject the packet even if it turns out to be bad, downloader will + // disconnect the peer on its own terms. Simply delivery the headers to + // be processed by the caller + res.Done <- nil + + return *res.Res.(*eth.BlockHeadersPacket), nil + } +} + +// fetchHeadersByNumber is a blocking version of Peer.RequestHeadersByNumber which +// handles all the cancellation, interruption and timeout mechanisms of a data +// retrieval to allow blocking API calls. +func (d *Downloader) fetchHeadersByNumber(p *peerConnection, number uint64, amount int, skip int, reverse bool) ([]*types.Header, error) { + // Create the response sink and send the network request + start := time.Now() + resCh := make(chan *eth.Response) + + req, err := p.peer.RequestHeadersByNumber(number, amount, skip, reverse, resCh) + if err != nil { + return nil, err + } + defer req.Close() + + // Wait until the response arrives, the request is cancelled or times out + ttl := d.peers.rates.TargetTimeout() + + timeoutTimer := time.NewTimer(ttl) + defer timeoutTimer.Stop() + + select { + case <-d.cancelCh: + return nil, errCanceled + + case <-timeoutTimer.C: + // Header retrieval timed out, update the metrics + p.log.Debug("Header request timed out", "elapsed", ttl) + headerTimeoutMeter.Mark(1) + + return nil, errTimeout + + case res := <-resCh: + // Headers successfully retrieved, update the metrics + headerReqTimer.Update(time.Since(start)) + headerInMeter.Mark(int64(len(*res.Res.(*eth.BlockHeadersPacket)))) + + // Don't reject the packet even if it turns out to be bad, downloader will + // disconnect the peer on its own terms. Simply delivery the headers to + // be processed by the caller + res.Done <- nil + + return *res.Res.(*eth.BlockHeadersPacket), nil + } +} diff --git a/eth/downloader/fetchers_concurrent.go b/eth/downloader/fetchers_concurrent.go new file mode 100644 index 000000000..4bade2b4c --- /dev/null +++ b/eth/downloader/fetchers_concurrent.go @@ -0,0 +1,381 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package downloader + +import ( + "errors" + "sort" + "time" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/common/prque" + "github.com/ethereum/go-ethereum/eth/protocols/eth" + "github.com/ethereum/go-ethereum/log" +) + +// timeoutGracePeriod is the amount of time to allow for a peer to deliver a +// response to a locally already timed out request. Timeouts are not penalized +// as a peer might be temporarily overloaded, however, they still must reply +// to each request. Failing to do so is considered a protocol violation. +var timeoutGracePeriod = 2 * time.Minute + +// typedQueue is an interface defining the adaptor needed to translate the type +// specific downloader/queue schedulers into the type-agnostic general concurrent +// fetcher algorithm calls. +type typedQueue interface { + // waker returns a notification channel that gets pinged in case more fetches + // have been queued up, so the fetcher might assign it to idle peers. + waker() chan bool + + // pending returns the number of wrapped items that are currently queued for + // fetching by the concurrent downloader. + pending() int + + // capacity is responsible for calculating how many items of the abstracted + // type a particular peer is estimated to be able to retrieve within the + // alloted round trip time. + capacity(peer *peerConnection, rtt time.Duration) int + + // updateCapacity is responsible for updating how many items of the abstracted + // type a particular peer is estimated to be able to retrieve in a unit time. + updateCapacity(peer *peerConnection, items int, elapsed time.Duration) + + // reserve is responsible for allocating a requested number of pending items + // from the download queue to the specified peer. + reserve(peer *peerConnection, items int) (*fetchRequest, bool, bool) + + // unreserve is resposible for removing the current retrieval allocation + // assigned to a specific peer and placing it back into the pool to allow + // reassigning to some other peer. + unreserve(peer string) int + + // request is responsible for converting a generic fetch request into a typed + // one and sending it to the remote peer for fulfillment. + request(peer *peerConnection, req *fetchRequest, resCh chan *eth.Response) (*eth.Request, error) + + // deliver is responsible for taking a generic response packet from the + // concurrent fetcher, unpacking the type specific data and delivering + // it to the downloader's queue. + deliver(peer *peerConnection, packet *eth.Response) (int, error) +} + +// concurrentFetch iteratively downloads scheduled block parts, taking available +// peers, reserving a chunk of fetch requests for each and waiting for delivery +// or timeouts. +func (d *Downloader) concurrentFetch(queue typedQueue) error { + // Create a delivery channel to accept responses from all peers + responses := make(chan *eth.Response) + + // Track the currently active requests and their timeout order + pending := make(map[string]*eth.Request) + defer func() { + // Abort all requests on sync cycle cancellation. The requests may still + // be fulfilled by the remote side, but the dispatcher will not wait to + // deliver them since nobody's going to be listening. + for _, req := range pending { + req.Close() + } + }() + ordering := make(map[*eth.Request]int) + timeouts := prque.New(func(data interface{}, index int) { + ordering[data.(*eth.Request)] = index + }) + + timeout := time.NewTimer(0) + if !timeout.Stop() { + <-timeout.C + } + defer timeout.Stop() + + // Track the timed-out but not-yet-answered requests separately. We want to + // keep tracking which peers are busy (potentially overloaded), so removing + // all trace of a timed out request is not good. We also can't just cancel + // the pending request altogether as that would prevent a late response from + // being delivered, thus never unblocking the peer. + stales := make(map[string]*eth.Request) + defer func() { + // Abort all requests on sync cycle cancellation. The requests may still + // be fulfilled by the remote side, but the dispatcher will not wait to + // deliver them since nobody's going to be listening. + for _, req := range stales { + req.Close() + } + }() + // Subscribe to peer lifecycle events to schedule tasks to new joiners and + // reschedule tasks upon disconnections. We don't care which event happened + // for simplicity, so just use a single channel. + peering := make(chan *peeringEvent, 64) // arbitrary buffer, just some burst protection + + peeringSub := d.peers.SubscribeEvents(peering) + defer peeringSub.Unsubscribe() + + // Prepare the queue and fetch block parts until the block header fetcher's done + finished := false + for { + // Short circuit if we lost all our peers + if d.peers.Len() == 0 { + return errNoPeers + } + // If there's nothing more to fetch, wait or terminate + if queue.pending() == 0 { + if len(pending) == 0 && finished { + return nil + } + } else { + // Send a download request to all idle peers, until throttled + var ( + idles []*peerConnection + caps []int + ) + for _, peer := range d.peers.AllPeers() { + pending, stale := pending[peer.id], stales[peer.id] + if pending == nil && stale == nil { + idles = append(idles, peer) + caps = append(caps, queue.capacity(peer, time.Second)) + } else if stale != nil { + if waited := time.Since(stale.Sent); waited > timeoutGracePeriod { + // Request has been in flight longer than the grace period + // permitted it, consider the peer malicious attempting to + // stall the sync. + peer.log.Warn("Peer stalling, dropping", "waited", common.PrettyDuration(waited)) + d.dropPeer(peer.id) + } + } + } + sort.Sort(&peerCapacitySort{idles, caps}) + + var ( + progressed bool + throttled bool + queued = queue.pending() + ) + for _, peer := range idles { + // Short circuit if throttling activated or there are no more + // queued tasks to be retrieved + if throttled { + break + } + if queued = queue.pending(); queued == 0 { + break + } + // Reserve a chunk of fetches for a peer. A nil can mean either that + // no more headers are available, or that the peer is known not to + // have them. + request, progress, throttle := queue.reserve(peer, queue.capacity(peer, d.peers.rates.TargetRoundTrip())) + if progress { + progressed = true + } + if throttle { + throttled = true + throttleCounter.Inc(1) + } + if request == nil { + continue + } + // Fetch the chunk and make sure any errors return the hashes to the queue + req, err := queue.request(peer, request, responses) + if err != nil { + // Sending the request failed, which generally means the peer + // was diconnected in between assignment and network send. + // Although all peer removal operations return allocated tasks + // to the queue, that is async, and we can do better here by + // immediately pushing the unfulfilled requests. + queue.unreserve(peer.id) // TODO(karalabe): This needs a non-expiration method + continue + } + pending[peer.id] = req + + ttl := d.peers.rates.TargetTimeout() + ordering[req] = timeouts.Size() + + timeouts.Push(req, -time.Now().Add(ttl).UnixNano()) + if timeouts.Size() == 1 { + timeout.Reset(ttl) + } + } + // Make sure that we have peers available for fetching. If all peers have been tried + // and all failed throw an error + if !progressed && !throttled && len(pending) == 0 && len(idles) == d.peers.Len() && queued > 0 { + return errPeersUnavailable + } + } + // Wait for something to happen + select { + case <-d.cancelCh: + // If sync was cancelled, tear down the parallel retriever. Pending + // requests will be cancelled locally, and the remote responses will + // be dropped when they arrive + return errCanceled + + case event := <-peering: + // A peer joined or left, the tasks queue and allocations need to be + // checked for potential assignment or reassignment + peerid := event.peer.id + + if event.join { + // Sanity check the internal state; this can be dropped later + if _, ok := pending[peerid]; ok { + event.peer.log.Error("Pending request exists for joining peer") + } + if _, ok := stales[peerid]; ok { + event.peer.log.Error("Stale request exists for joining peer") + } + // Loop back to the entry point for task assignment + continue + } + // A peer left, any existing requests need to be untracked, pending + // tasks returned and possible reassignment checked + if req, ok := pending[peerid]; ok { + queue.unreserve(peerid) // TODO(karalabe): This needs a non-expiration method + delete(pending, peerid) + req.Close() + + if index, live := ordering[req]; live { + timeouts.Remove(index) + if index == 0 { + if !timeout.Stop() { + <-timeout.C + } + if timeouts.Size() > 0 { + _, exp := timeouts.Peek() + timeout.Reset(time.Until(time.Unix(0, -exp))) + } + } + delete(ordering, req) + } + } + if req, ok := stales[peerid]; ok { + delete(stales, peerid) + req.Close() + } + + case <-timeout.C: + // Retrieve the next request which should have timed out. The check + // below is purely for to catch programming errors, given the correct + // code, there's no possible order of events that should result in a + // timeout firing for a non-existent event. + item, exp := timeouts.Peek() + if now, at := time.Now(), time.Unix(0, -exp); now.Before(at) { + log.Error("Timeout triggered but not reached", "left", at.Sub(now)) + timeout.Reset(at.Sub(now)) + continue + } + req := item.(*eth.Request) + + // Stop tracking the timed out request from a timing perspective, + // cancel it, so it's not considered in-flight anymore, but keep + // the peer marked busy to prevent assigning a second request and + // overloading it further. + delete(pending, req.Peer) + stales[req.Peer] = req + delete(ordering, req) + + timeouts.Pop() + if timeouts.Size() > 0 { + _, exp := timeouts.Peek() + timeout.Reset(time.Until(time.Unix(0, -exp))) + } + // New timeout potentially set if there are more requests pending, + // reschedule the failed one to a free peer + fails := queue.unreserve(req.Peer) + + // Finally, update the peer's retrieval capacity, or if it's already + // below the minimum allowance, drop the peer. If a lot of retrieval + // elements expired, we might have overestimated the remote peer or + // perhaps ourselves. Only reset to minimal throughput but don't drop + // just yet. + // + // The reason the minimum threshold is 2 is that the downloader tries + // to estimate the bandwidth and latency of a peer separately, which + // requires pushing the measured capacity a bit and seeing how response + // times reacts, to it always requests one more than the minimum (i.e. + // min 2). + peer := d.peers.Peer(req.Peer) + if peer == nil { + // If the peer got disconnected in between, we should really have + // short-circuited it already. Just in case there's some strange + // codepath, leave this check in not to crash. + log.Error("Delivery timeout from unknown peer", "peer", req.Peer) + continue + } + if fails > 2 { + queue.updateCapacity(peer, 0, 0) + } else { + d.dropPeer(peer.id) + + // If this peer was the master peer, abort sync immediately + d.cancelLock.RLock() + master := peer.id == d.cancelPeer + d.cancelLock.RUnlock() + + if master { + d.cancel() + return errTimeout + } + } + + case res := <-responses: + // Response arrived, it may be for an existing or an already timed + // out request. If the former, update the timeout heap and perhaps + // reschedule the timeout timer. + index, live := ordering[res.Req] + if live { + timeouts.Remove(index) + if index == 0 { + if !timeout.Stop() { + <-timeout.C + } + if timeouts.Size() > 0 { + _, exp := timeouts.Peek() + timeout.Reset(time.Until(time.Unix(0, -exp))) + } + } + delete(ordering, res.Req) + } + // Delete the pending request (if it still exists) and mark the peer idle + delete(pending, res.Req.Peer) + delete(stales, res.Req.Peer) + + // Signal the dispatcher that the round trip is done. We'll drop the + // peer if the data turns out to be junk. + res.Done <- nil + res.Req.Close() + + // If the peer was previously banned and failed to deliver its pack + // in a reasonable time frame, ignore its message. + if peer := d.peers.Peer(res.Req.Peer); peer != nil { + // Deliver the received chunk of data and check chain validity + accepted, err := queue.deliver(peer, res) + if errors.Is(err, errInvalidChain) { + return err + } + // Unless a peer delivered something completely else than requested (usually + // caused by a timed out request which came through in the end), set it to + // idle. If the delivery's stale, the peer should have already been idled. + if !errors.Is(err, errStaleDelivery) { + queue.updateCapacity(peer, accepted, res.Time) + } + } + + case cont := <-queue.waker(): + // The header fetcher sent a continuation flag, check if it's done + if !cont { + finished = true + } + } + } +} diff --git a/eth/downloader/fetchers_concurrent_bodies.go b/eth/downloader/fetchers_concurrent_bodies.go new file mode 100644 index 000000000..259811f57 --- /dev/null +++ b/eth/downloader/fetchers_concurrent_bodies.go @@ -0,0 +1,104 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package downloader + +import ( + "time" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/eth/protocols/eth" + "github.com/ethereum/go-ethereum/log" +) + +// bodyQueue implements typedQueue and is a type adapter between the generic +// concurrent fetcher and the downloader. +type bodyQueue Downloader + +// waker returns a notification channel that gets pinged in case more body +// fetches have been queued up, so the fetcher might assign it to idle peers. +func (q *bodyQueue) waker() chan bool { + return q.queue.blockWakeCh +} + +// pending returns the number of bodies that are currently queued for fetching +// by the concurrent downloader. +func (q *bodyQueue) pending() int { + return q.queue.PendingBodies() +} + +// capacity is responsible for calculating how many bodies a particular peer is +// estimated to be able to retrieve within the alloted round trip time. +func (q *bodyQueue) capacity(peer *peerConnection, rtt time.Duration) int { + return peer.BodyCapacity(rtt) +} + +// updateCapacity is responsible for updating how many bodies a particular peer +// is estimated to be able to retrieve in a unit time. +func (q *bodyQueue) updateCapacity(peer *peerConnection, items int, span time.Duration) { + peer.UpdateBodyRate(items, span) +} + +// reserve is responsible for allocating a requested number of pending bodies +// from the download queue to the specified peer. +func (q *bodyQueue) reserve(peer *peerConnection, items int) (*fetchRequest, bool, bool) { + return q.queue.ReserveBodies(peer, items) +} + +// unreserve is resposible for removing the current body retrieval allocation +// assigned to a specific peer and placing it back into the pool to allow +// reassigning to some other peer. +func (q *bodyQueue) unreserve(peer string) int { + fails := q.queue.ExpireBodies(peer) + if fails > 2 { + log.Trace("Body delivery timed out", "peer", peer) + } else { + log.Debug("Body delivery stalling", "peer", peer) + } + return fails +} + +// request is responsible for converting a generic fetch request into a body +// one and sending it to the remote peer for fulfillment. +func (q *bodyQueue) request(peer *peerConnection, req *fetchRequest, resCh chan *eth.Response) (*eth.Request, error) { + peer.log.Trace("Requesting new batch of bodies", "count", len(req.Headers), "from", req.Headers[0].Number) + if q.bodyFetchHook != nil { + q.bodyFetchHook(req.Headers) + } + + hashes := make([]common.Hash, 0, len(req.Headers)) + for _, header := range req.Headers { + hashes = append(hashes, header.Hash()) + } + return peer.peer.RequestBodies(hashes, resCh) +} + +// deliver is responsible for taking a generic response packet from the concurrent +// fetcher, unpacking the body data and delivering it to the downloader's queue. +func (q *bodyQueue) deliver(peer *peerConnection, packet *eth.Response) (int, error) { + txs, uncles := packet.Res.(*eth.BlockBodiesPacket).Unpack() + + accepted, err := q.queue.DeliverBodies(peer.id, txs, uncles) + switch { + case err == nil && len(txs) == 0: + peer.log.Trace("Requested bodies delivered") + case err == nil: + peer.log.Trace("Delivered new batch of bodies", "count", len(txs), "accepted", accepted) + default: + peer.log.Debug("Failed to deliver retrieved bodies", "err", err) + } + return accepted, err +} diff --git a/eth/downloader/fetchers_concurrent_headers.go b/eth/downloader/fetchers_concurrent_headers.go new file mode 100644 index 000000000..f30b279d2 --- /dev/null +++ b/eth/downloader/fetchers_concurrent_headers.go @@ -0,0 +1,95 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package downloader + +import ( + "time" + + "github.com/ethereum/go-ethereum/eth/protocols/eth" + "github.com/ethereum/go-ethereum/log" +) + +// headerQueue implements typedQueue and is a type adapter between the generic +// concurrent fetcher and the downloader. +type headerQueue Downloader + +// waker returns a notification channel that gets pinged in case more header +// fetches have been queued up, so the fetcher might assign it to idle peers. +func (q *headerQueue) waker() chan bool { + return q.queue.headerContCh +} + +// pending returns the number of headers that are currently queued for fetching +// by the concurrent downloader. +func (q *headerQueue) pending() int { + return q.queue.PendingHeaders() +} + +// capacity is responsible for calculating how many headers a particular peer is +// estimated to be able to retrieve within the alloted round trip time. +func (q *headerQueue) capacity(peer *peerConnection, rtt time.Duration) int { + return peer.HeaderCapacity(rtt) +} + +// updateCapacity is responsible for updating how many headers a particular peer +// is estimated to be able to retrieve in a unit time. +func (q *headerQueue) updateCapacity(peer *peerConnection, items int, span time.Duration) { + peer.UpdateHeaderRate(items, span) +} + +// reserve is responsible for allocating a requested number of pending headers +// from the download queue to the specified peer. +func (q *headerQueue) reserve(peer *peerConnection, items int) (*fetchRequest, bool, bool) { + return q.queue.ReserveHeaders(peer, items), false, false +} + +// unreserve is resposible for removing the current header retrieval allocation +// assigned to a specific peer and placing it back into the pool to allow +// reassigning to some other peer. +func (q *headerQueue) unreserve(peer string) int { + fails := q.queue.ExpireHeaders(peer) + if fails > 2 { + log.Trace("Header delivery timed out", "peer", peer) + } else { + log.Debug("Header delivery stalling", "peer", peer) + } + return fails +} + +// request is responsible for converting a generic fetch request into a header +// one and sending it to the remote peer for fulfillment. +func (q *headerQueue) request(peer *peerConnection, req *fetchRequest, resCh chan *eth.Response) (*eth.Request, error) { + peer.log.Trace("Requesting new batch of headers", "from", req.From) + return peer.peer.RequestHeadersByNumber(req.From, MaxHeaderFetch, 0, false, resCh) +} + +// deliver is responsible for taking a generic response packet from the concurrent +// fetcher, unpacking the header data and delivering it to the downloader's queue. +func (q *headerQueue) deliver(peer *peerConnection, packet *eth.Response) (int, error) { + headers := *packet.Res.(*eth.BlockHeadersPacket) + + accepted, err := q.queue.DeliverHeaders(peer.id, headers, q.headerProcCh) + switch { + case err == nil && len(headers) == 0: + peer.log.Trace("Requested headers delivered") + case err == nil: + peer.log.Trace("Delivered new batch of headers", "count", len(headers), "accepted", accepted) + default: + peer.log.Debug("Failed to deliver retrieved headers", "err", err) + } + return accepted, err +} diff --git a/eth/downloader/fetchers_concurrent_receipts.go b/eth/downloader/fetchers_concurrent_receipts.go new file mode 100644 index 000000000..ce935f0a8 --- /dev/null +++ b/eth/downloader/fetchers_concurrent_receipts.go @@ -0,0 +1,103 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package downloader + +import ( + "time" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/eth/protocols/eth" + "github.com/ethereum/go-ethereum/log" +) + +// receiptQueue implements typedQueue and is a type adapter between the generic +// concurrent fetcher and the downloader. +type receiptQueue Downloader + +// waker returns a notification channel that gets pinged in case more reecipt +// fetches have been queued up, so the fetcher might assign it to idle peers. +func (q *receiptQueue) waker() chan bool { + return q.queue.receiptWakeCh +} + +// pending returns the number of receipt that are currently queued for fetching +// by the concurrent downloader. +func (q *receiptQueue) pending() int { + return q.queue.PendingReceipts() +} + +// capacity is responsible for calculating how many receipts a particular peer is +// estimated to be able to retrieve within the alloted round trip time. +func (q *receiptQueue) capacity(peer *peerConnection, rtt time.Duration) int { + return peer.ReceiptCapacity(rtt) +} + +// updateCapacity is responsible for updating how many receipts a particular peer +// is estimated to be able to retrieve in a unit time. +func (q *receiptQueue) updateCapacity(peer *peerConnection, items int, span time.Duration) { + peer.UpdateReceiptRate(items, span) +} + +// reserve is responsible for allocating a requested number of pending receipts +// from the download queue to the specified peer. +func (q *receiptQueue) reserve(peer *peerConnection, items int) (*fetchRequest, bool, bool) { + return q.queue.ReserveReceipts(peer, items) +} + +// unreserve is resposible for removing the current receipt retrieval allocation +// assigned to a specific peer and placing it back into the pool to allow +// reassigning to some other peer. +func (q *receiptQueue) unreserve(peer string) int { + fails := q.queue.ExpireReceipts(peer) + if fails > 2 { + log.Trace("Receipt delivery timed out", "peer", peer) + } else { + log.Debug("Receipt delivery stalling", "peer", peer) + } + return fails +} + +// request is responsible for converting a generic fetch request into a receipt +// one and sending it to the remote peer for fulfillment. +func (q *receiptQueue) request(peer *peerConnection, req *fetchRequest, resCh chan *eth.Response) (*eth.Request, error) { + peer.log.Trace("Requesting new batch of receipts", "count", len(req.Headers), "from", req.Headers[0].Number) + if q.receiptFetchHook != nil { + q.receiptFetchHook(req.Headers) + } + hashes := make([]common.Hash, 0, len(req.Headers)) + for _, header := range req.Headers { + hashes = append(hashes, header.Hash()) + } + return peer.peer.RequestReceipts(hashes, resCh) +} + +// deliver is responsible for taking a generic response packet from the concurrent +// fetcher, unpacking the receipt data and delivering it to the downloader's queue. +func (q *receiptQueue) deliver(peer *peerConnection, packet *eth.Response) (int, error) { + receipts := *packet.Res.(*eth.ReceiptsPacket) + + accepted, err := q.queue.DeliverReceipts(peer.id, receipts) + switch { + case err == nil && len(receipts) == 0: + peer.log.Trace("Requested receipts delivered") + case err == nil: + peer.log.Trace("Delivered new batch of receipts", "count", len(receipts), "accepted", accepted) + default: + peer.log.Debug("Failed to deliver retrieved receipts", "err", err) + } + return accepted, err +} diff --git a/eth/downloader/metrics.go b/eth/downloader/metrics.go index c38732043..23c033a8a 100644 --- a/eth/downloader/metrics.go +++ b/eth/downloader/metrics.go @@ -38,8 +38,5 @@ var ( receiptDropMeter = metrics.NewRegisteredMeter("eth/downloader/receipts/drop", nil) receiptTimeoutMeter = metrics.NewRegisteredMeter("eth/downloader/receipts/timeout", nil) - stateInMeter = metrics.NewRegisteredMeter("eth/downloader/states/in", nil) - stateDropMeter = metrics.NewRegisteredMeter("eth/downloader/states/drop", nil) - throttleCounter = metrics.NewRegisteredCounter("eth/downloader/throttle", nil) ) diff --git a/eth/downloader/modes.go b/eth/downloader/modes.go index 3ea14d22d..d388b9ee4 100644 --- a/eth/downloader/modes.go +++ b/eth/downloader/modes.go @@ -24,7 +24,6 @@ type SyncMode uint32 const ( FullSync SyncMode = iota // Synchronise the entire blockchain history from full blocks - FastSync // Quickly download the headers, full sync only at the chain SnapSync // Download the chain and the state via compact snapshots LightSync // Download only the headers and terminate afterwards ) @@ -38,8 +37,6 @@ func (mode SyncMode) String() string { switch mode { case FullSync: return "full" - case FastSync: - return "fast" case SnapSync: return "snap" case LightSync: @@ -53,8 +50,6 @@ func (mode SyncMode) MarshalText() ([]byte, error) { switch mode { case FullSync: return []byte("full"), nil - case FastSync: - return []byte("fast"), nil case SnapSync: return []byte("snap"), nil case LightSync: @@ -68,14 +63,12 @@ func (mode *SyncMode) UnmarshalText(text []byte) error { switch string(text) { case "full": *mode = FullSync - case "fast": - *mode = FastSync case "snap": *mode = SnapSync case "light": *mode = LightSync default: - return fmt.Errorf(`unknown sync mode %q, want "full", "fast" or "light"`, text) + return fmt.Errorf(`unknown sync mode %q, want "full", "snap" or "light"`, text) } return nil } diff --git a/eth/downloader/peer.go b/eth/downloader/peer.go index 863294832..324fdb9cd 100644 --- a/eth/downloader/peer.go +++ b/eth/downloader/peer.go @@ -22,9 +22,7 @@ package downloader import ( "errors" "math/big" - "sort" "sync" - "sync/atomic" "time" "github.com/ethereum/go-ethereum/common" @@ -39,7 +37,6 @@ const ( ) var ( - errAlreadyFetching = errors.New("already fetching blocks from peer") errAlreadyRegistered = errors.New("peer is already registered") errNotRegistered = errors.New("peer is not registered") ) @@ -48,16 +45,6 @@ var ( type peerConnection struct { id string // Unique identifier of the peer - headerIdle int32 // Current header activity state of the peer (idle = 0, active = 1) - blockIdle int32 // Current block activity state of the peer (idle = 0, active = 1) - receiptIdle int32 // Current receipt activity state of the peer (idle = 0, active = 1) - stateIdle int32 // Current node data activity state of the peer (idle = 0, active = 1) - - headerStarted time.Time // Time instance when the last header fetch was started - blockStarted time.Time // Time instance when the last block (body) fetch was started - receiptStarted time.Time // Time instance when the last receipt fetch was started - stateStarted time.Time // Time instance when the last node data fetch was started - rates *msgrate.Tracker // Tracker to hone in on the number of items retrievable per second lacking map[common.Hash]struct{} // Set of hashes not to request (didn't have previously) @@ -71,16 +58,15 @@ type peerConnection struct { // LightPeer encapsulates the methods required to synchronise with a remote light peer. type LightPeer interface { Head() (common.Hash, *big.Int) - RequestHeadersByHash(common.Hash, int, int, bool) error - RequestHeadersByNumber(uint64, int, int, bool) error + RequestHeadersByHash(common.Hash, int, int, bool, chan *eth.Response) (*eth.Request, error) + RequestHeadersByNumber(uint64, int, int, bool, chan *eth.Response) (*eth.Request, error) } // Peer encapsulates the methods required to synchronise with a remote full peer. type Peer interface { LightPeer - RequestBodies([]common.Hash) error - RequestReceipts([]common.Hash) error - RequestNodeData([]common.Hash) error + RequestBodies([]common.Hash, chan *eth.Response) (*eth.Request, error) + RequestReceipts([]common.Hash, chan *eth.Response) (*eth.Request, error) } // lightPeerWrapper wraps a LightPeer struct, stubbing out the Peer-only methods. @@ -89,21 +75,18 @@ type lightPeerWrapper struct { } func (w *lightPeerWrapper) Head() (common.Hash, *big.Int) { return w.peer.Head() } -func (w *lightPeerWrapper) RequestHeadersByHash(h common.Hash, amount int, skip int, reverse bool) error { - return w.peer.RequestHeadersByHash(h, amount, skip, reverse) +func (w *lightPeerWrapper) RequestHeadersByHash(h common.Hash, amount int, skip int, reverse bool, sink chan *eth.Response) (*eth.Request, error) { + return w.peer.RequestHeadersByHash(h, amount, skip, reverse, sink) } -func (w *lightPeerWrapper) RequestHeadersByNumber(i uint64, amount int, skip int, reverse bool) error { - return w.peer.RequestHeadersByNumber(i, amount, skip, reverse) +func (w *lightPeerWrapper) RequestHeadersByNumber(i uint64, amount int, skip int, reverse bool, sink chan *eth.Response) (*eth.Request, error) { + return w.peer.RequestHeadersByNumber(i, amount, skip, reverse, sink) } -func (w *lightPeerWrapper) RequestBodies([]common.Hash) error { +func (w *lightPeerWrapper) RequestBodies([]common.Hash, chan *eth.Response) (*eth.Request, error) { panic("RequestBodies not supported in light client mode sync") } -func (w *lightPeerWrapper) RequestReceipts([]common.Hash) error { +func (w *lightPeerWrapper) RequestReceipts([]common.Hash, chan *eth.Response) (*eth.Request, error) { panic("RequestReceipts not supported in light client mode sync") } -func (w *lightPeerWrapper) RequestNodeData([]common.Hash) error { - panic("RequestNodeData not supported in light client mode sync") -} // newPeerConnection creates a new downloader peer. func newPeerConnection(id string, version uint, peer Peer, logger log.Logger) *peerConnection { @@ -121,114 +104,28 @@ func (p *peerConnection) Reset() { p.lock.Lock() defer p.lock.Unlock() - atomic.StoreInt32(&p.headerIdle, 0) - atomic.StoreInt32(&p.blockIdle, 0) - atomic.StoreInt32(&p.receiptIdle, 0) - atomic.StoreInt32(&p.stateIdle, 0) - p.lacking = make(map[common.Hash]struct{}) } -// FetchHeaders sends a header retrieval request to the remote peer. -func (p *peerConnection) FetchHeaders(from uint64, count int) error { - // Short circuit if the peer is already fetching - if !atomic.CompareAndSwapInt32(&p.headerIdle, 0, 1) { - return errAlreadyFetching - } - p.headerStarted = time.Now() - - // Issue the header retrieval request (absolute upwards without gaps) - go p.peer.RequestHeadersByNumber(from, count, 0, false) - - return nil +// UpdateHeaderRate updates the peer's estimated header retrieval throughput with +// the current measurement. +func (p *peerConnection) UpdateHeaderRate(delivered int, elapsed time.Duration) { + p.rates.Update(eth.BlockHeadersMsg, elapsed, delivered) } -// FetchBodies sends a block body retrieval request to the remote peer. -func (p *peerConnection) FetchBodies(request *fetchRequest) error { - // Short circuit if the peer is already fetching - if !atomic.CompareAndSwapInt32(&p.blockIdle, 0, 1) { - return errAlreadyFetching - } - p.blockStarted = time.Now() - - go func() { - // Convert the header set to a retrievable slice - hashes := make([]common.Hash, 0, len(request.Headers)) - for _, header := range request.Headers { - hashes = append(hashes, header.Hash()) - } - p.peer.RequestBodies(hashes) - }() - - return nil +// UpdateBodyRate updates the peer's estimated body retrieval throughput with the +// current measurement. +func (p *peerConnection) UpdateBodyRate(delivered int, elapsed time.Duration) { + p.rates.Update(eth.BlockBodiesMsg, elapsed, delivered) } -// FetchReceipts sends a receipt retrieval request to the remote peer. -func (p *peerConnection) FetchReceipts(request *fetchRequest) error { - // Short circuit if the peer is already fetching - if !atomic.CompareAndSwapInt32(&p.receiptIdle, 0, 1) { - return errAlreadyFetching - } - p.receiptStarted = time.Now() - - go func() { - // Convert the header set to a retrievable slice - hashes := make([]common.Hash, 0, len(request.Headers)) - for _, header := range request.Headers { - hashes = append(hashes, header.Hash()) - } - p.peer.RequestReceipts(hashes) - }() - - return nil +// UpdateReceiptRate updates the peer's estimated receipt retrieval throughput +// with the current measurement. +func (p *peerConnection) UpdateReceiptRate(delivered int, elapsed time.Duration) { + p.rates.Update(eth.ReceiptsMsg, elapsed, delivered) } -// FetchNodeData sends a node state data retrieval request to the remote peer. -func (p *peerConnection) FetchNodeData(hashes []common.Hash) error { - // Short circuit if the peer is already fetching - if !atomic.CompareAndSwapInt32(&p.stateIdle, 0, 1) { - return errAlreadyFetching - } - p.stateStarted = time.Now() - - go p.peer.RequestNodeData(hashes) - - return nil -} - -// SetHeadersIdle sets the peer to idle, allowing it to execute new header retrieval -// requests. Its estimated header retrieval throughput is updated with that measured -// just now. -func (p *peerConnection) SetHeadersIdle(delivered int, deliveryTime time.Time) { - p.rates.Update(eth.BlockHeadersMsg, deliveryTime.Sub(p.headerStarted), delivered) - atomic.StoreInt32(&p.headerIdle, 0) -} - -// SetBodiesIdle sets the peer to idle, allowing it to execute block body retrieval -// requests. Its estimated body retrieval throughput is updated with that measured -// just now. -func (p *peerConnection) SetBodiesIdle(delivered int, deliveryTime time.Time) { - p.rates.Update(eth.BlockBodiesMsg, deliveryTime.Sub(p.blockStarted), delivered) - atomic.StoreInt32(&p.blockIdle, 0) -} - -// SetReceiptsIdle sets the peer to idle, allowing it to execute new receipt -// retrieval requests. Its estimated receipt retrieval throughput is updated -// with that measured just now. -func (p *peerConnection) SetReceiptsIdle(delivered int, deliveryTime time.Time) { - p.rates.Update(eth.ReceiptsMsg, deliveryTime.Sub(p.receiptStarted), delivered) - atomic.StoreInt32(&p.receiptIdle, 0) -} - -// SetNodeDataIdle sets the peer to idle, allowing it to execute new state trie -// data retrieval requests. Its estimated state retrieval throughput is updated -// with that measured just now. -func (p *peerConnection) SetNodeDataIdle(delivered int, deliveryTime time.Time) { - p.rates.Update(eth.NodeDataMsg, deliveryTime.Sub(p.stateStarted), delivered) - atomic.StoreInt32(&p.stateIdle, 0) -} - -// HeaderCapacity retrieves the peers header download allowance based on its +// HeaderCapacity retrieves the peer's header download allowance based on its // previously discovered throughput. func (p *peerConnection) HeaderCapacity(targetRTT time.Duration) int { cap := p.rates.Capacity(eth.BlockHeadersMsg, targetRTT) @@ -238,9 +135,9 @@ func (p *peerConnection) HeaderCapacity(targetRTT time.Duration) int { return cap } -// BlockCapacity retrieves the peers block download allowance based on its +// BodyCapacity retrieves the peer's body download allowance based on its // previously discovered throughput. -func (p *peerConnection) BlockCapacity(targetRTT time.Duration) int { +func (p *peerConnection) BodyCapacity(targetRTT time.Duration) int { cap := p.rates.Capacity(eth.BlockBodiesMsg, targetRTT) if cap > MaxBlockFetch { cap = MaxBlockFetch @@ -258,16 +155,6 @@ func (p *peerConnection) ReceiptCapacity(targetRTT time.Duration) int { return cap } -// NodeDataCapacity retrieves the peers state download allowance based on its -// previously discovered throughput. -func (p *peerConnection) NodeDataCapacity(targetRTT time.Duration) int { - cap := p.rates.Capacity(eth.NodeDataMsg, targetRTT) - if cap > MaxStateFetch { - cap = MaxStateFetch - } - return cap -} - // MarkLacking appends a new entity to the set of items (blocks, receipts, states) // that a peer is known not to have (i.e. have been requested before). If the // set reaches its maximum allowed capacity, items are randomly dropped off. @@ -294,14 +181,19 @@ func (p *peerConnection) Lacks(hash common.Hash) bool { return ok } +// peeringEvent is sent on the peer event feed when a remote peer connects or +// disconnects. +type peeringEvent struct { + peer *peerConnection + join bool +} + // peerSet represents the collection of active peer participating in the chain // download procedure. type peerSet struct { - peers map[string]*peerConnection - rates *msgrate.Trackers // Set of rate trackers to give the sync a common beat - - newPeerFeed event.Feed - peerDropFeed event.Feed + peers map[string]*peerConnection + rates *msgrate.Trackers // Set of rate trackers to give the sync a common beat + events event.Feed // Feed to publish peer lifecycle events on lock sync.RWMutex } @@ -314,14 +206,9 @@ func newPeerSet() *peerSet { } } -// SubscribeNewPeers subscribes to peer arrival events. -func (ps *peerSet) SubscribeNewPeers(ch chan<- *peerConnection) event.Subscription { - return ps.newPeerFeed.Subscribe(ch) -} - -// SubscribePeerDrops subscribes to peer departure events. -func (ps *peerSet) SubscribePeerDrops(ch chan<- *peerConnection) event.Subscription { - return ps.peerDropFeed.Subscribe(ch) +// SubscribeEvents subscribes to peer arrival and departure events. +func (ps *peerSet) SubscribeEvents(ch chan<- *peeringEvent) event.Subscription { + return ps.events.Subscribe(ch) } // Reset iterates over the current peer set, and resets each of the known peers @@ -355,7 +242,7 @@ func (ps *peerSet) Register(p *peerConnection) error { ps.peers[p.id] = p ps.lock.Unlock() - ps.newPeerFeed.Send(p) + ps.events.Send(&peeringEvent{peer: p, join: true}) return nil } @@ -372,7 +259,7 @@ func (ps *peerSet) Unregister(id string) error { ps.rates.Untrack(id) ps.lock.Unlock() - ps.peerDropFeed.Send(p) + ps.events.Send(&peeringEvent{peer: p, join: false}) return nil } @@ -404,82 +291,6 @@ func (ps *peerSet) AllPeers() []*peerConnection { return list } -// HeaderIdlePeers retrieves a flat list of all the currently header-idle peers -// within the active peer set, ordered by their reputation. -func (ps *peerSet) HeaderIdlePeers() ([]*peerConnection, int) { - idle := func(p *peerConnection) bool { - return atomic.LoadInt32(&p.headerIdle) == 0 - } - throughput := func(p *peerConnection) int { - return p.rates.Capacity(eth.BlockHeadersMsg, time.Second) - } - return ps.idlePeers(eth.ETH66, eth.ETH66, idle, throughput) -} - -// BodyIdlePeers retrieves a flat list of all the currently body-idle peers within -// the active peer set, ordered by their reputation. -func (ps *peerSet) BodyIdlePeers() ([]*peerConnection, int) { - idle := func(p *peerConnection) bool { - return atomic.LoadInt32(&p.blockIdle) == 0 - } - throughput := func(p *peerConnection) int { - return p.rates.Capacity(eth.BlockBodiesMsg, time.Second) - } - return ps.idlePeers(eth.ETH66, eth.ETH66, idle, throughput) -} - -// ReceiptIdlePeers retrieves a flat list of all the currently receipt-idle peers -// within the active peer set, ordered by their reputation. -func (ps *peerSet) ReceiptIdlePeers() ([]*peerConnection, int) { - idle := func(p *peerConnection) bool { - return atomic.LoadInt32(&p.receiptIdle) == 0 - } - throughput := func(p *peerConnection) int { - return p.rates.Capacity(eth.ReceiptsMsg, time.Second) - } - return ps.idlePeers(eth.ETH66, eth.ETH66, idle, throughput) -} - -// NodeDataIdlePeers retrieves a flat list of all the currently node-data-idle -// peers within the active peer set, ordered by their reputation. -func (ps *peerSet) NodeDataIdlePeers() ([]*peerConnection, int) { - idle := func(p *peerConnection) bool { - return atomic.LoadInt32(&p.stateIdle) == 0 - } - throughput := func(p *peerConnection) int { - return p.rates.Capacity(eth.NodeDataMsg, time.Second) - } - return ps.idlePeers(eth.ETH66, eth.ETH66, idle, throughput) -} - -// idlePeers retrieves a flat list of all currently idle peers satisfying the -// protocol version constraints, using the provided function to check idleness. -// The resulting set of peers are sorted by their capacity. -func (ps *peerSet) idlePeers(minProtocol, maxProtocol uint, idleCheck func(*peerConnection) bool, capacity func(*peerConnection) int) ([]*peerConnection, int) { - ps.lock.RLock() - defer ps.lock.RUnlock() - - var ( - total = 0 - idle = make([]*peerConnection, 0, len(ps.peers)) - tps = make([]int, 0, len(ps.peers)) - ) - for _, p := range ps.peers { - if p.version >= minProtocol && p.version <= maxProtocol { - if idleCheck(p) { - idle = append(idle, p) - tps = append(tps, capacity(p)) - } - total++ - } - } - - // And sort them - sortPeers := &peerCapacitySort{idle, tps} - sort.Sort(sortPeers) - return sortPeers.p, total -} - // peerCapacitySort implements sort.Interface. // It sorts peer connections by capacity (descending). type peerCapacitySort struct { diff --git a/eth/downloader/queue.go b/eth/downloader/queue.go index 04ec12cfa..c0498af69 100644 --- a/eth/downloader/queue.go +++ b/eth/downloader/queue.go @@ -54,8 +54,8 @@ var ( // fetchRequest is a currently running data retrieval operation. type fetchRequest struct { Peer *peerConnection // Peer to which the request was sent - From uint64 // [eth/62] Requested chain element index (used for skeleton fills only) - Headers []*types.Header // [eth/62] Requested headers, sorted by request order + From uint64 // Requested chain element index (used for skeleton fills only) + Headers []*types.Header // Requested headers, sorted by request order Time time.Time // Time when the request was made } @@ -127,10 +127,12 @@ type queue struct { blockTaskPool map[common.Hash]*types.Header // Pending block (body) retrieval tasks, mapping hashes to headers blockTaskQueue *prque.Prque // Priority queue of the headers to fetch the blocks (bodies) for blockPendPool map[string]*fetchRequest // Currently pending block (body) retrieval operations + blockWakeCh chan bool // Channel to notify the block fetcher of new tasks receiptTaskPool map[common.Hash]*types.Header // Pending receipt retrieval tasks, mapping hashes to headers receiptTaskQueue *prque.Prque // Priority queue of the headers to fetch the receipts for receiptPendPool map[string]*fetchRequest // Currently pending receipt retrieval operations + receiptWakeCh chan bool // Channel to notify when receipt fetcher of new tasks resultCache *resultStore // Downloaded but not yet delivered fetch results resultSize common.StorageSize // Approximate size of a block (exponential moving average) @@ -146,9 +148,11 @@ type queue struct { func newQueue(blockCacheLimit int, thresholdInitialSize int) *queue { lock := new(sync.RWMutex) q := &queue{ - headerContCh: make(chan bool), + headerContCh: make(chan bool, 1), blockTaskQueue: prque.New(nil), + blockWakeCh: make(chan bool, 1), receiptTaskQueue: prque.New(nil), + receiptWakeCh: make(chan bool, 1), active: sync.NewCond(lock), lock: lock, } @@ -196,8 +200,8 @@ func (q *queue) PendingHeaders() int { return q.headerTaskQueue.Size() } -// PendingBlocks retrieves the number of block (body) requests pending for retrieval. -func (q *queue) PendingBlocks() int { +// PendingBodies retrieves the number of block body requests pending for retrieval. +func (q *queue) PendingBodies() int { q.lock.Lock() defer q.lock.Unlock() @@ -212,15 +216,6 @@ func (q *queue) PendingReceipts() int { return q.receiptTaskQueue.Size() } -// InFlightHeaders retrieves whether there are header fetch requests currently -// in flight. -func (q *queue) InFlightHeaders() bool { - q.lock.Lock() - defer q.lock.Unlock() - - return len(q.headerPendPool) > 0 -} - // InFlightBlocks retrieves whether there are block fetch requests currently in // flight. func (q *queue) InFlightBlocks() bool { @@ -318,7 +313,7 @@ func (q *queue) Schedule(headers []*types.Header, from uint64) []*types.Header { q.blockTaskQueue.Push(header, -int64(header.Number.Uint64())) } // Queue for receipt retrieval - if q.mode == FastSync && !header.EmptyReceipts() { + if q.mode == SnapSync && !header.EmptyReceipts() { if _, ok := q.receiptTaskPool[hash]; ok { log.Warn("Header already scheduled for receipt fetch", "number", header.Number, "hash", hash) } else { @@ -383,6 +378,13 @@ func (q *queue) Results(block bool) []*fetchResult { throttleThreshold := uint64((common.StorageSize(blockCacheMemory) + q.resultSize - 1) / q.resultSize) throttleThreshold = q.resultCache.SetThrottleThreshold(throttleThreshold) + // With results removed from the cache, wake throttled fetchers + for _, ch := range []chan bool{q.blockWakeCh, q.receiptWakeCh} { + select { + case ch <- true: + default: + } + } // Log some info at certain times if time.Since(q.lastStatLog) > 60*time.Second { q.lastStatLog = time.Now() @@ -503,7 +505,7 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common // we can ask the resultcache if this header is within the // "prioritized" segment of blocks. If it is not, we need to throttle - stale, throttle, item, err := q.resultCache.AddFetch(header, q.mode == FastSync) + stale, throttle, item, err := q.resultCache.AddFetch(header, q.mode == SnapSync) if stale { // Don't put back in the task queue, this item has already been // delivered upstream @@ -566,40 +568,6 @@ func (q *queue) reserveHeaders(p *peerConnection, count int, taskPool map[common return request, progress, throttled } -// CancelHeaders aborts a fetch request, returning all pending skeleton indexes to the queue. -func (q *queue) CancelHeaders(request *fetchRequest) { - q.lock.Lock() - defer q.lock.Unlock() - q.cancel(request, q.headerTaskQueue, q.headerPendPool) -} - -// CancelBodies aborts a body fetch request, returning all pending headers to the -// task queue. -func (q *queue) CancelBodies(request *fetchRequest) { - q.lock.Lock() - defer q.lock.Unlock() - q.cancel(request, q.blockTaskQueue, q.blockPendPool) -} - -// CancelReceipts aborts a body fetch request, returning all pending headers to -// the task queue. -func (q *queue) CancelReceipts(request *fetchRequest) { - q.lock.Lock() - defer q.lock.Unlock() - q.cancel(request, q.receiptTaskQueue, q.receiptPendPool) -} - -// Cancel aborts a fetch request, returning all pending hashes to the task queue. -func (q *queue) cancel(request *fetchRequest, taskQueue *prque.Prque, pendPool map[string]*fetchRequest) { - if request.From > 0 { - taskQueue.Push(request.From, -int64(request.From)) - } - for _, header := range request.Headers { - taskQueue.Push(header, -int64(header.Number.Uint64())) - } - delete(pendPool, request.Peer.id) -} - // Revoke cancels all pending requests belonging to a given peer. This method is // meant to be called during a peer drop to quickly reassign owned data fetches // to remaining nodes. @@ -607,6 +575,10 @@ func (q *queue) Revoke(peerID string) { q.lock.Lock() defer q.lock.Unlock() + if request, ok := q.headerPendPool[peerID]; ok { + q.headerTaskQueue.Push(request.From, -int64(request.From)) + delete(q.headerPendPool, peerID) + } if request, ok := q.blockPendPool[peerID]; ok { for _, header := range request.Headers { q.blockTaskQueue.Push(header, -int64(header.Number.Uint64())) @@ -621,62 +593,60 @@ func (q *queue) Revoke(peerID string) { } } -// ExpireHeaders checks for in flight requests that exceeded a timeout allowance, -// canceling them and returning the responsible peers for penalisation. -func (q *queue) ExpireHeaders(timeout time.Duration) map[string]int { +// ExpireHeaders cancels a request that timed out and moves the pending fetch +// task back into the queue for rescheduling. +func (q *queue) ExpireHeaders(peer string) int { q.lock.Lock() defer q.lock.Unlock() - return q.expire(timeout, q.headerPendPool, q.headerTaskQueue, headerTimeoutMeter) + headerTimeoutMeter.Mark(1) + return q.expire(peer, q.headerPendPool, q.headerTaskQueue) } // ExpireBodies checks for in flight block body requests that exceeded a timeout // allowance, canceling them and returning the responsible peers for penalisation. -func (q *queue) ExpireBodies(timeout time.Duration) map[string]int { +func (q *queue) ExpireBodies(peer string) int { q.lock.Lock() defer q.lock.Unlock() - return q.expire(timeout, q.blockPendPool, q.blockTaskQueue, bodyTimeoutMeter) + bodyTimeoutMeter.Mark(1) + return q.expire(peer, q.blockPendPool, q.blockTaskQueue) } // ExpireReceipts checks for in flight receipt requests that exceeded a timeout // allowance, canceling them and returning the responsible peers for penalisation. -func (q *queue) ExpireReceipts(timeout time.Duration) map[string]int { +func (q *queue) ExpireReceipts(peer string) int { q.lock.Lock() defer q.lock.Unlock() - return q.expire(timeout, q.receiptPendPool, q.receiptTaskQueue, receiptTimeoutMeter) + receiptTimeoutMeter.Mark(1) + return q.expire(peer, q.receiptPendPool, q.receiptTaskQueue) } -// expire is the generic check that move expired tasks from a pending pool back -// into a task pool, returning all entities caught with expired tasks. +// expire is the generic check that moves a specific expired task from a pending +// pool back into a task pool. // -// Note, this method expects the queue lock to be already held. The -// reason the lock is not obtained in here is because the parameters already need -// to access the queue, so they already need a lock anyway. -func (q *queue) expire(timeout time.Duration, pendPool map[string]*fetchRequest, taskQueue *prque.Prque, timeoutMeter metrics.Meter) map[string]int { - // Iterate over the expired requests and return each to the queue - expiries := make(map[string]int) - for id, request := range pendPool { - if time.Since(request.Time) > timeout { - // Update the metrics with the timeout - timeoutMeter.Mark(1) - - // Return any non satisfied requests to the pool - if request.From > 0 { - taskQueue.Push(request.From, -int64(request.From)) - } - for _, header := range request.Headers { - taskQueue.Push(header, -int64(header.Number.Uint64())) - } - // Add the peer to the expiry report along the number of failed requests - expiries[id] = len(request.Headers) - - // Remove the expired requests from the pending pool directly - delete(pendPool, id) - } +// Note, this method expects the queue lock to be already held. The reason the +// lock is not obtained in here is that the parameters already need to access +// the queue, so they already need a lock anyway. +func (q *queue) expire(peer string, pendPool map[string]*fetchRequest, taskQueue *prque.Prque) int { + // Retrieve the request being expired and log an error if it's non-existnet, + // as there's no order of events that should lead to such expirations. + req := pendPool[peer] + if req == nil { + log.Error("Expired request does not exist", "peer", peer) + return 0 } - return expiries + delete(pendPool, peer) + + // Return any non-satisfied requests to the pool + if req.From > 0 { + taskQueue.Push(req.From, -int64(req.From)) + } + for _, header := range req.Headers { + taskQueue.Push(header, -int64(header.Number.Uint64())) + } + return len(req.Headers) } // DeliverHeaders injects a header retrieval response into the header results @@ -684,7 +654,7 @@ func (q *queue) expire(timeout time.Duration, pendPool map[string]*fetchRequest, // if they do not map correctly to the skeleton. // // If the headers are accepted, the method makes an attempt to deliver the set -// of ready headers to the processor to keep the pipeline full. However it will +// of ready headers to the processor to keep the pipeline full. However, it will // not block to prevent stalling other pending deliveries. func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh chan []*types.Header) (int, error) { q.lock.Lock() @@ -700,11 +670,14 @@ func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh // Short circuit if the data was never requested request := q.headerPendPool[id] if request == nil { + headerDropMeter.Mark(int64(len(headers))) return 0, errNoFetchesPending } - headerReqTimer.UpdateSince(request.Time) delete(q.headerPendPool, id) + headerReqTimer.UpdateSince(request.Time) + headerInMeter.Mark(int64(len(headers))) + // Ensure headers can be mapped onto the skeleton chain target := q.headerTaskPool[request.From].Hash() @@ -739,6 +712,7 @@ func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh // If the batch of headers wasn't accepted, mark as unavailable if !accepted { logger.Trace("Skeleton filling not accepted", "from", request.From) + headerDropMeter.Mark(int64(len(headers))) miss := q.headerPeerMiss[id] if miss == nil { @@ -783,6 +757,7 @@ func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh func (q *queue) DeliverBodies(id string, txLists [][]*types.Transaction, uncleLists [][]*types.Header) (int, error) { q.lock.Lock() defer q.lock.Unlock() + trieHasher := trie.NewStackTrie(nil) validate := func(index int, header *types.Header) error { if types.DeriveSha(types.Transactions(txLists[index]), trieHasher) != header.TxHash { @@ -800,7 +775,7 @@ func (q *queue) DeliverBodies(id string, txLists [][]*types.Transaction, uncleLi result.SetBodyDone() } return q.deliver(id, q.blockTaskPool, q.blockTaskQueue, q.blockPendPool, - bodyReqTimer, len(txLists), validate, reconstruct) + bodyReqTimer, bodyInMeter, bodyDropMeter, len(txLists), validate, reconstruct) } // DeliverReceipts injects a receipt retrieval response into the results queue. @@ -809,6 +784,7 @@ func (q *queue) DeliverBodies(id string, txLists [][]*types.Transaction, uncleLi func (q *queue) DeliverReceipts(id string, receiptList [][]*types.Receipt) (int, error) { q.lock.Lock() defer q.lock.Unlock() + trieHasher := trie.NewStackTrie(nil) validate := func(index int, header *types.Header) error { if types.DeriveSha(types.Receipts(receiptList[index]), trieHasher) != header.ReceiptHash { @@ -821,7 +797,7 @@ func (q *queue) DeliverReceipts(id string, receiptList [][]*types.Receipt) (int, result.SetReceiptsDone() } return q.deliver(id, q.receiptTaskPool, q.receiptTaskQueue, q.receiptPendPool, - receiptReqTimer, len(receiptList), validate, reconstruct) + receiptReqTimer, receiptInMeter, receiptDropMeter, len(receiptList), validate, reconstruct) } // deliver injects a data retrieval response into the results queue. @@ -830,18 +806,22 @@ func (q *queue) DeliverReceipts(id string, receiptList [][]*types.Receipt) (int, // reason this lock is not obtained in here is because the parameters already need // to access the queue, so they already need a lock anyway. func (q *queue) deliver(id string, taskPool map[common.Hash]*types.Header, - taskQueue *prque.Prque, pendPool map[string]*fetchRequest, reqTimer metrics.Timer, + taskQueue *prque.Prque, pendPool map[string]*fetchRequest, + reqTimer metrics.Timer, resInMeter metrics.Meter, resDropMeter metrics.Meter, results int, validate func(index int, header *types.Header) error, reconstruct func(index int, result *fetchResult)) (int, error) { // Short circuit if the data was never requested request := pendPool[id] if request == nil { + resDropMeter.Mark(int64(results)) return 0, errNoFetchesPending } - reqTimer.UpdateSince(request.Time) delete(pendPool, id) + reqTimer.UpdateSince(request.Time) + resInMeter.Mark(int64(results)) + // If no data items were retrieved, mark them as unavailable for the origin peer if results == 0 { for _, header := range request.Headers { @@ -883,6 +863,8 @@ func (q *queue) deliver(id string, taskPool map[common.Hash]*types.Header, delete(taskPool, hashes[accepted]) accepted++ } + resDropMeter.Mark(int64(results - accepted)) + // Return all failed or missing fetches to the queue for _, header := range request.Headers[accepted:] { taskQueue.Push(header, -int64(header.Number.Uint64())) diff --git a/eth/downloader/queue_test.go b/eth/downloader/queue_test.go index cde5f306a..9dc27a593 100644 --- a/eth/downloader/queue_test.go +++ b/eth/downloader/queue_test.go @@ -104,7 +104,7 @@ func TestBasics(t *testing.T) { if !q.Idle() { t.Errorf("new queue should be idle") } - q.Prepare(1, FastSync) + q.Prepare(1, SnapSync) if res := q.Results(false); len(res) != 0 { t.Fatal("new queue should have 0 results") } @@ -114,7 +114,7 @@ func TestBasics(t *testing.T) { if q.Idle() { t.Errorf("queue should not be idle") } - if got, exp := q.PendingBlocks(), chain.Len(); got != exp { + if got, exp := q.PendingBodies(), chain.Len(); got != exp { t.Errorf("wrong pending block count, got %d, exp %d", got, exp) } // Only non-empty receipts get added to task-queue @@ -197,13 +197,13 @@ func TestEmptyBlocks(t *testing.T) { q := newQueue(10, 10) - q.Prepare(1, FastSync) + q.Prepare(1, SnapSync) // Schedule a batch of headers q.Schedule(emptyChain.headers(), 1) if q.Idle() { t.Errorf("queue should not be idle") } - if got, exp := q.PendingBlocks(), len(emptyChain.blocks); got != exp { + if got, exp := q.PendingBodies(), len(emptyChain.blocks); got != exp { t.Errorf("wrong pending block count, got %d, exp %d", got, exp) } if got, exp := q.PendingReceipts(), 0; got != exp { @@ -272,7 +272,7 @@ func XTestDelivery(t *testing.T) { } q := newQueue(10, 10) var wg sync.WaitGroup - q.Prepare(1, FastSync) + q.Prepare(1, SnapSync) wg.Add(1) go func() { // deliver headers diff --git a/eth/downloader/statesync.go b/eth/downloader/statesync.go index 6c53e5577..501af63ed 100644 --- a/eth/downloader/statesync.go +++ b/eth/downloader/statesync.go @@ -17,48 +17,12 @@ package downloader import ( - "fmt" "sync" - "time" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core/rawdb" - "github.com/ethereum/go-ethereum/core/state" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/trie" - "golang.org/x/crypto/sha3" ) -// stateReq represents a batch of state fetch requests grouped together into -// a single data retrieval network packet. -type stateReq struct { - nItems uint16 // Number of items requested for download (max is 384, so uint16 is sufficient) - trieTasks map[common.Hash]*trieTask // Trie node download tasks to track previous attempts - codeTasks map[common.Hash]*codeTask // Byte code download tasks to track previous attempts - timeout time.Duration // Maximum round trip time for this to complete - timer *time.Timer // Timer to fire when the RTT timeout expires - peer *peerConnection // Peer that we're requesting from - delivered time.Time // Time when the packet was delivered (independent when we process it) - response [][]byte // Response data of the peer (nil for timeouts) - dropped bool // Flag whether the peer dropped off early -} - -// timedOut returns if this request timed out. -func (req *stateReq) timedOut() bool { - return req.response == nil -} - -// stateSyncStats is a collection of progress stats to report during a state trie -// sync to RPC requests as well as to display in user logs. -type stateSyncStats struct { - processed uint64 // Number of state entries processed - duplicate uint64 // Number of state entries downloaded twice - unexpected uint64 // Number of non-requested state entries received - pending uint64 // Number of still pending state entries -} - // syncState starts downloading state with the given root hash. func (d *Downloader) syncState(root common.Hash) *stateSync { // Create the state sync @@ -85,8 +49,6 @@ func (d *Downloader) stateFetcher() { for next := s; next != nil; { next = d.runStateSync(next) } - case <-d.stateCh: - // Ignore state responses while no sync is running. case <-d.quitCh: return } @@ -96,216 +58,44 @@ func (d *Downloader) stateFetcher() { // runStateSync runs a state synchronisation until it completes or another root // hash is requested to be switched over to. func (d *Downloader) runStateSync(s *stateSync) *stateSync { - var ( - active = make(map[string]*stateReq) // Currently in-flight requests - finished []*stateReq // Completed or failed requests - timeout = make(chan *stateReq) // Timed out active requests - ) log.Trace("State sync starting", "root", s.root) - defer func() { - // Cancel active request timers on exit. Also set peers to idle so they're - // available for the next sync. - for _, req := range active { - req.timer.Stop() - req.peer.SetNodeDataIdle(int(req.nItems), time.Now()) - } - }() go s.run() defer s.Cancel() - // Listen for peer departure events to cancel assigned tasks - peerDrop := make(chan *peerConnection, 1024) - peerSub := s.d.peers.SubscribePeerDrops(peerDrop) - defer peerSub.Unsubscribe() - for { - // Enable sending of the first buffered element if there is one. - var ( - deliverReq *stateReq - deliverReqCh chan *stateReq - ) - if len(finished) > 0 { - deliverReq = finished[0] - deliverReqCh = s.deliver - } - select { - // The stateSync lifecycle: case next := <-d.stateSyncStart: - d.spindownStateSync(active, finished, timeout, peerDrop) return next case <-s.done: - d.spindownStateSync(active, finished, timeout, peerDrop) return nil - - // Send the next finished request to the current sync: - case deliverReqCh <- deliverReq: - // Shift out the first request, but also set the emptied slot to nil for GC - copy(finished, finished[1:]) - finished[len(finished)-1] = nil - finished = finished[:len(finished)-1] - - // Handle incoming state packs: - case pack := <-d.stateCh: - // Discard any data not requested (or previously timed out) - req := active[pack.PeerId()] - if req == nil { - log.Debug("Unrequested node data", "peer", pack.PeerId(), "len", pack.Items()) - continue - } - // Finalize the request and queue up for processing - req.timer.Stop() - req.response = pack.(*statePack).states - req.delivered = time.Now() - - finished = append(finished, req) - delete(active, pack.PeerId()) - - // Handle dropped peer connections: - case p := <-peerDrop: - // Skip if no request is currently pending - req := active[p.id] - if req == nil { - continue - } - // Finalize the request and queue up for processing - req.timer.Stop() - req.dropped = true - req.delivered = time.Now() - - finished = append(finished, req) - delete(active, p.id) - - // Handle timed-out requests: - case req := <-timeout: - // If the peer is already requesting something else, ignore the stale timeout. - // This can happen when the timeout and the delivery happens simultaneously, - // causing both pathways to trigger. - if active[req.peer.id] != req { - continue - } - req.delivered = time.Now() - // Move the timed out data back into the download queue - finished = append(finished, req) - delete(active, req.peer.id) - - // Track outgoing state requests: - case req := <-d.trackStateReq: - // If an active request already exists for this peer, we have a problem. In - // theory the trie node schedule must never assign two requests to the same - // peer. In practice however, a peer might receive a request, disconnect and - // immediately reconnect before the previous times out. In this case the first - // request is never honored, alas we must not silently overwrite it, as that - // causes valid requests to go missing and sync to get stuck. - if old := active[req.peer.id]; old != nil { - log.Warn("Busy peer assigned new state fetch", "peer", old.peer.id) - // Move the previous request to the finished set - old.timer.Stop() - old.dropped = true - old.delivered = time.Now() - finished = append(finished, old) - } - // Start a timer to notify the sync loop if the peer stalled. - req.timer = time.AfterFunc(req.timeout, func() { - timeout <- req - }) - active[req.peer.id] = req } } } -// spindownStateSync 'drains' the outstanding requests; some will be delivered and other -// will time out. This is to ensure that when the next stateSync starts working, all peers -// are marked as idle and de facto _are_ idle. -func (d *Downloader) spindownStateSync(active map[string]*stateReq, finished []*stateReq, timeout chan *stateReq, peerDrop chan *peerConnection) { - log.Trace("State sync spinning down", "active", len(active), "finished", len(finished)) - for len(active) > 0 { - var ( - req *stateReq - reason string - ) - select { - // Handle (drop) incoming state packs: - case pack := <-d.stateCh: - req = active[pack.PeerId()] - reason = "delivered" - // Handle dropped peer connections: - case p := <-peerDrop: - req = active[p.id] - reason = "peerdrop" - // Handle timed-out requests: - case req = <-timeout: - reason = "timeout" - } - if req == nil { - continue - } - req.peer.log.Trace("State peer marked idle (spindown)", "req.items", int(req.nItems), "reason", reason) - req.timer.Stop() - delete(active, req.peer.id) - req.peer.SetNodeDataIdle(int(req.nItems), time.Now()) - } - // The 'finished' set contains deliveries that we were going to pass to processing. - // Those are now moot, but we still need to set those peers as idle, which would - // otherwise have been done after processing - for _, req := range finished { - req.peer.SetNodeDataIdle(int(req.nItems), time.Now()) - } -} - // stateSync schedules requests for downloading a particular state trie defined // by a given state root. type stateSync struct { - d *Downloader // Downloader instance to access and manage current peerset + d *Downloader // Downloader instance to access and manage current peerset + root common.Hash // State root currently being synced - root common.Hash // State root currently being synced - sched *trie.Sync // State trie sync scheduler defining the tasks - keccak crypto.KeccakState // Keccak256 hasher to verify deliveries with - - trieTasks map[common.Hash]*trieTask // Set of trie node tasks currently queued for retrieval - codeTasks map[common.Hash]*codeTask // Set of byte code tasks currently queued for retrieval - - numUncommitted int - bytesUncommitted int - - started chan struct{} // Started is signalled once the sync loop starts - - deliver chan *stateReq // Delivery channel multiplexing peer responses - cancel chan struct{} // Channel to signal a termination request - cancelOnce sync.Once // Ensures cancel only ever gets called once - done chan struct{} // Channel to signal termination completion - err error // Any error hit during sync (set before completion) -} - -// trieTask represents a single trie node download task, containing a set of -// peers already attempted retrieval from to detect stalled syncs and abort. -type trieTask struct { - path [][]byte - attempts map[string]struct{} -} - -// codeTask represents a single byte code download task, containing a set of -// peers already attempted retrieval from to detect stalled syncs and abort. -type codeTask struct { - attempts map[string]struct{} + started chan struct{} // Started is signalled once the sync loop starts + cancel chan struct{} // Channel to signal a termination request + cancelOnce sync.Once // Ensures cancel only ever gets called once + done chan struct{} // Channel to signal termination completion + err error // Any error hit during sync (set before completion) } // newStateSync creates a new state trie download scheduler. This method does not // yet start the sync. The user needs to call run to initiate. func newStateSync(d *Downloader, root common.Hash) *stateSync { return &stateSync{ - d: d, - root: root, - sched: state.NewStateSync(root, d.stateDB, d.stateBloom, nil), - keccak: sha3.NewLegacyKeccak256().(crypto.KeccakState), - trieTasks: make(map[common.Hash]*trieTask), - codeTasks: make(map[common.Hash]*codeTask), - deliver: make(chan *stateReq), - cancel: make(chan struct{}), - done: make(chan struct{}), - started: make(chan struct{}), + d: d, + root: root, + cancel: make(chan struct{}), + done: make(chan struct{}), + started: make(chan struct{}), } } @@ -314,11 +104,7 @@ func newStateSync(d *Downloader, root common.Hash) *stateSync { // finish. func (s *stateSync) run() { close(s.started) - if s.d.snapSync { - s.err = s.d.SnapSyncer.Sync(s.root, s.cancel) - } else { - s.err = s.loop() - } + s.err = s.d.SnapSyncer.Sync(s.root, s.cancel) close(s.done) } @@ -335,281 +121,3 @@ func (s *stateSync) Cancel() error { }) return s.Wait() } - -// loop is the main event loop of a state trie sync. It it responsible for the -// assignment of new tasks to peers (including sending it to them) as well as -// for the processing of inbound data. Note, that the loop does not directly -// receive data from peers, rather those are buffered up in the downloader and -// pushed here async. The reason is to decouple processing from data receipt -// and timeouts. -func (s *stateSync) loop() (err error) { - // Listen for new peer events to assign tasks to them - newPeer := make(chan *peerConnection, 1024) - peerSub := s.d.peers.SubscribeNewPeers(newPeer) - defer peerSub.Unsubscribe() - defer func() { - cerr := s.commit(true) - if err == nil { - err = cerr - } - }() - - // Keep assigning new tasks until the sync completes or aborts - for s.sched.Pending() > 0 { - if err = s.commit(false); err != nil { - return err - } - s.assignTasks() - // Tasks assigned, wait for something to happen - select { - case <-newPeer: - // New peer arrived, try to assign it download tasks - - case <-s.cancel: - return errCancelStateFetch - - case <-s.d.cancelCh: - return errCanceled - - case req := <-s.deliver: - // Response, disconnect or timeout triggered, drop the peer if stalling - log.Trace("Received node data response", "peer", req.peer.id, "count", len(req.response), "dropped", req.dropped, "timeout", !req.dropped && req.timedOut()) - if req.nItems <= 2 && !req.dropped && req.timedOut() { - // 2 items are the minimum requested, if even that times out, we've no use of - // this peer at the moment. - log.Warn("Stalling state sync, dropping peer", "peer", req.peer.id) - if s.d.dropPeer == nil { - // The dropPeer method is nil when `--copydb` is used for a local copy. - // Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored - req.peer.log.Warn("Downloader wants to drop peer, but peerdrop-function is not set", "peer", req.peer.id) - } else { - s.d.dropPeer(req.peer.id) - - // If this peer was the master peer, abort sync immediately - s.d.cancelLock.RLock() - master := req.peer.id == s.d.cancelPeer - s.d.cancelLock.RUnlock() - - if master { - s.d.cancel() - return errTimeout - } - } - } - // Process all the received blobs and check for stale delivery - delivered, err := s.process(req) - req.peer.SetNodeDataIdle(delivered, req.delivered) - if err != nil { - log.Warn("Node data write error", "err", err) - return err - } - } - } - return nil -} - -func (s *stateSync) commit(force bool) error { - if !force && s.bytesUncommitted < ethdb.IdealBatchSize { - return nil - } - start := time.Now() - b := s.d.stateDB.NewBatch() - if err := s.sched.Commit(b); err != nil { - return err - } - if err := b.Write(); err != nil { - return fmt.Errorf("DB write error: %v", err) - } - s.updateStats(s.numUncommitted, 0, 0, time.Since(start)) - s.numUncommitted = 0 - s.bytesUncommitted = 0 - return nil -} - -// assignTasks attempts to assign new tasks to all idle peers, either from the -// batch currently being retried, or fetching new data from the trie sync itself. -func (s *stateSync) assignTasks() { - // Iterate over all idle peers and try to assign them state fetches - peers, _ := s.d.peers.NodeDataIdlePeers() - for _, p := range peers { - // Assign a batch of fetches proportional to the estimated latency/bandwidth - cap := p.NodeDataCapacity(s.d.peers.rates.TargetRoundTrip()) - req := &stateReq{peer: p, timeout: s.d.peers.rates.TargetTimeout()} - - nodes, _, codes := s.fillTasks(cap, req) - - // If the peer was assigned tasks to fetch, send the network request - if len(nodes)+len(codes) > 0 { - req.peer.log.Trace("Requesting batch of state data", "nodes", len(nodes), "codes", len(codes), "root", s.root) - select { - case s.d.trackStateReq <- req: - req.peer.FetchNodeData(append(nodes, codes...)) // Unified retrieval under eth/6x - case <-s.cancel: - case <-s.d.cancelCh: - } - } - } -} - -// fillTasks fills the given request object with a maximum of n state download -// tasks to send to the remote peer. -func (s *stateSync) fillTasks(n int, req *stateReq) (nodes []common.Hash, paths []trie.SyncPath, codes []common.Hash) { - // Refill available tasks from the scheduler. - if fill := n - (len(s.trieTasks) + len(s.codeTasks)); fill > 0 { - nodes, paths, codes := s.sched.Missing(fill) - for i, hash := range nodes { - s.trieTasks[hash] = &trieTask{ - path: paths[i], - attempts: make(map[string]struct{}), - } - } - for _, hash := range codes { - s.codeTasks[hash] = &codeTask{ - attempts: make(map[string]struct{}), - } - } - } - // Find tasks that haven't been tried with the request's peer. Prefer code - // over trie nodes as those can be written to disk and forgotten about. - nodes = make([]common.Hash, 0, n) - paths = make([]trie.SyncPath, 0, n) - codes = make([]common.Hash, 0, n) - - req.trieTasks = make(map[common.Hash]*trieTask, n) - req.codeTasks = make(map[common.Hash]*codeTask, n) - - for hash, t := range s.codeTasks { - // Stop when we've gathered enough requests - if len(nodes)+len(codes) == n { - break - } - // Skip any requests we've already tried from this peer - if _, ok := t.attempts[req.peer.id]; ok { - continue - } - // Assign the request to this peer - t.attempts[req.peer.id] = struct{}{} - codes = append(codes, hash) - req.codeTasks[hash] = t - delete(s.codeTasks, hash) - } - for hash, t := range s.trieTasks { - // Stop when we've gathered enough requests - if len(nodes)+len(codes) == n { - break - } - // Skip any requests we've already tried from this peer - if _, ok := t.attempts[req.peer.id]; ok { - continue - } - // Assign the request to this peer - t.attempts[req.peer.id] = struct{}{} - - nodes = append(nodes, hash) - paths = append(paths, t.path) - - req.trieTasks[hash] = t - delete(s.trieTasks, hash) - } - req.nItems = uint16(len(nodes) + len(codes)) - return nodes, paths, codes -} - -// process iterates over a batch of delivered state data, injecting each item -// into a running state sync, re-queuing any items that were requested but not -// delivered. Returns whether the peer actually managed to deliver anything of -// value, and any error that occurred. -func (s *stateSync) process(req *stateReq) (int, error) { - // Collect processing stats and update progress if valid data was received - duplicate, unexpected, successful := 0, 0, 0 - - defer func(start time.Time) { - if duplicate > 0 || unexpected > 0 { - s.updateStats(0, duplicate, unexpected, time.Since(start)) - } - }(time.Now()) - - // Iterate over all the delivered data and inject one-by-one into the trie - for _, blob := range req.response { - hash, err := s.processNodeData(blob) - switch err { - case nil: - s.numUncommitted++ - s.bytesUncommitted += len(blob) - successful++ - case trie.ErrNotRequested: - unexpected++ - case trie.ErrAlreadyProcessed: - duplicate++ - default: - return successful, fmt.Errorf("invalid state node %s: %v", hash.TerminalString(), err) - } - // Delete from both queues (one delivery is enough for the syncer) - delete(req.trieTasks, hash) - delete(req.codeTasks, hash) - } - // Put unfulfilled tasks back into the retry queue - npeers := s.d.peers.Len() - for hash, task := range req.trieTasks { - // If the node did deliver something, missing items may be due to a protocol - // limit or a previous timeout + delayed delivery. Both cases should permit - // the node to retry the missing items (to avoid single-peer stalls). - if len(req.response) > 0 || req.timedOut() { - delete(task.attempts, req.peer.id) - } - // If we've requested the node too many times already, it may be a malicious - // sync where nobody has the right data. Abort. - if len(task.attempts) >= npeers { - return successful, fmt.Errorf("trie node %s failed with all peers (%d tries, %d peers)", hash.TerminalString(), len(task.attempts), npeers) - } - // Missing item, place into the retry queue. - s.trieTasks[hash] = task - } - for hash, task := range req.codeTasks { - // If the node did deliver something, missing items may be due to a protocol - // limit or a previous timeout + delayed delivery. Both cases should permit - // the node to retry the missing items (to avoid single-peer stalls). - if len(req.response) > 0 || req.timedOut() { - delete(task.attempts, req.peer.id) - } - // If we've requested the node too many times already, it may be a malicious - // sync where nobody has the right data. Abort. - if len(task.attempts) >= npeers { - return successful, fmt.Errorf("byte code %s failed with all peers (%d tries, %d peers)", hash.TerminalString(), len(task.attempts), npeers) - } - // Missing item, place into the retry queue. - s.codeTasks[hash] = task - } - return successful, nil -} - -// processNodeData tries to inject a trie node data blob delivered from a remote -// peer into the state trie, returning whether anything useful was written or any -// error occurred. -func (s *stateSync) processNodeData(blob []byte) (common.Hash, error) { - res := trie.SyncResult{Data: blob} - s.keccak.Reset() - s.keccak.Write(blob) - s.keccak.Read(res.Hash[:]) - err := s.sched.Process(res) - return res.Hash, err -} - -// updateStats bumps the various state sync progress counters and displays a log -// message for the user to see. -func (s *stateSync) updateStats(written, duplicate, unexpected int, duration time.Duration) { - s.d.syncStatsLock.Lock() - defer s.d.syncStatsLock.Unlock() - - s.d.syncStatsState.pending = uint64(s.sched.Pending()) - s.d.syncStatsState.processed += uint64(written) - s.d.syncStatsState.duplicate += uint64(duplicate) - s.d.syncStatsState.unexpected += uint64(unexpected) - - if written > 0 || duplicate > 0 || unexpected > 0 { - log.Info("Imported new state entries", "count", written, "elapsed", common.PrettyDuration(duration), "processed", s.d.syncStatsState.processed, "pending", s.d.syncStatsState.pending, "trieretry", len(s.trieTasks), "coderetry", len(s.codeTasks), "duplicate", s.d.syncStatsState.duplicate, "unexpected", s.d.syncStatsState.unexpected) - } - if written > 0 { - rawdb.WriteFastTrieProgress(s.d.stateDB, s.d.syncStatsState.processed) - } -} diff --git a/eth/downloader/testchain_test.go b/eth/downloader/testchain_test.go index b9865f7e0..8b873343c 100644 --- a/eth/downloader/testchain_test.go +++ b/eth/downloader/testchain_test.go @@ -20,12 +20,14 @@ import ( "fmt" "math/big" "sync" + "time" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/params" ) @@ -39,73 +41,110 @@ var ( ) // The common prefix of all test chains: -var testChainBase = newTestChain(blockCacheMaxItems+200, testGenesis) +var testChainBase *testChain // Different forks on top of the base chain: var testChainForkLightA, testChainForkLightB, testChainForkHeavy *testChain +var pregenerated bool + func init() { + // Reduce some of the parameters to make the tester faster + fullMaxForkAncestry = 10000 + lightMaxForkAncestry = 10000 + blockCacheMaxItems = 1024 + fsHeaderSafetyNet = 256 + fsHeaderContCheck = 500 * time.Millisecond + + testChainBase = newTestChain(blockCacheMaxItems+200, testGenesis) + var forkLen = int(fullMaxForkAncestry + 50) var wg sync.WaitGroup + + // Generate the test chains to seed the peers with wg.Add(3) go func() { testChainForkLightA = testChainBase.makeFork(forkLen, false, 1); wg.Done() }() go func() { testChainForkLightB = testChainBase.makeFork(forkLen, false, 2); wg.Done() }() go func() { testChainForkHeavy = testChainBase.makeFork(forkLen, true, 3); wg.Done() }() wg.Wait() + + // Generate the test peers used by the tests to avoid overloading during testing. + // These seemingly random chains are used in various downloader tests. We're just + // pre-generating them here. + chains := []*testChain{ + testChainBase, + testChainForkLightA, + testChainForkLightB, + testChainForkHeavy, + testChainBase.shorten(1), + testChainBase.shorten(blockCacheMaxItems - 15), + testChainBase.shorten((blockCacheMaxItems - 15) / 2), + testChainBase.shorten(blockCacheMaxItems - 15 - 5), + testChainBase.shorten(MaxHeaderFetch), + testChainBase.shorten(800), + testChainBase.shorten(800 / 2), + testChainBase.shorten(800 / 3), + testChainBase.shorten(800 / 4), + testChainBase.shorten(800 / 5), + testChainBase.shorten(800 / 6), + testChainBase.shorten(800 / 7), + testChainBase.shorten(800 / 8), + testChainBase.shorten(3*fsHeaderSafetyNet + 256 + fsMinFullBlocks), + testChainBase.shorten(fsMinFullBlocks + 256 - 1), + testChainForkLightA.shorten(len(testChainBase.blocks) + 80), + testChainForkLightB.shorten(len(testChainBase.blocks) + 81), + testChainForkLightA.shorten(len(testChainBase.blocks) + MaxHeaderFetch), + testChainForkLightB.shorten(len(testChainBase.blocks) + MaxHeaderFetch), + testChainForkHeavy.shorten(len(testChainBase.blocks) + 79), + } + wg.Add(len(chains)) + for _, chain := range chains { + go func(blocks []*types.Block) { + newTestBlockchain(blocks) + wg.Done() + }(chain.blocks[1:]) + } + wg.Wait() + + // Mark the chains pregenerated. Generating a new one will lead to a panic. + pregenerated = true } type testChain struct { - genesis *types.Block - chain []common.Hash - headerm map[common.Hash]*types.Header - blockm map[common.Hash]*types.Block - receiptm map[common.Hash][]*types.Receipt - tdm map[common.Hash]*big.Int + blocks []*types.Block } // newTestChain creates a blockchain of the given length. func newTestChain(length int, genesis *types.Block) *testChain { - tc := new(testChain).copy(length) - tc.genesis = genesis - tc.chain = append(tc.chain, genesis.Hash()) - tc.headerm[tc.genesis.Hash()] = tc.genesis.Header() - tc.tdm[tc.genesis.Hash()] = tc.genesis.Difficulty() - tc.blockm[tc.genesis.Hash()] = tc.genesis + tc := &testChain{ + blocks: []*types.Block{genesis}, + } tc.generate(length-1, 0, genesis, false) return tc } // makeFork creates a fork on top of the test chain. func (tc *testChain) makeFork(length int, heavy bool, seed byte) *testChain { - fork := tc.copy(tc.len() + length) - fork.generate(length, seed, tc.headBlock(), heavy) + fork := tc.copy(len(tc.blocks) + length) + fork.generate(length, seed, tc.blocks[len(tc.blocks)-1], heavy) return fork } // shorten creates a copy of the chain with the given length. It panics if the // length is longer than the number of available blocks. func (tc *testChain) shorten(length int) *testChain { - if length > tc.len() { - panic(fmt.Errorf("can't shorten test chain to %d blocks, it's only %d blocks long", length, tc.len())) + if length > len(tc.blocks) { + panic(fmt.Errorf("can't shorten test chain to %d blocks, it's only %d blocks long", length, len(tc.blocks))) } return tc.copy(length) } func (tc *testChain) copy(newlen int) *testChain { - cpy := &testChain{ - genesis: tc.genesis, - headerm: make(map[common.Hash]*types.Header, newlen), - blockm: make(map[common.Hash]*types.Block, newlen), - receiptm: make(map[common.Hash][]*types.Receipt, newlen), - tdm: make(map[common.Hash]*big.Int, newlen), + if newlen > len(tc.blocks) { + newlen = len(tc.blocks) } - for i := 0; i < len(tc.chain) && i < newlen; i++ { - hash := tc.chain[i] - cpy.chain = append(cpy.chain, tc.chain[i]) - cpy.tdm[hash] = tc.tdm[hash] - cpy.blockm[hash] = tc.blockm[hash] - cpy.headerm[hash] = tc.headerm[hash] - cpy.receiptm[hash] = tc.receiptm[hash] + cpy := &testChain{ + blocks: append([]*types.Block{}, tc.blocks[:newlen]...), } return cpy } @@ -115,17 +154,14 @@ func (tc *testChain) copy(newlen int) *testChain { // contains a transaction and every 5th an uncle to allow testing correct block // reassembly. func (tc *testChain) generate(n int, seed byte, parent *types.Block, heavy bool) { - // start := time.Now() - // defer func() { fmt.Printf("test chain generated in %v\n", time.Since(start)) }() - - blocks, receipts := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), testDB, n, func(i int, block *core.BlockGen) { + blocks, _ := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), testDB, n, func(i int, block *core.BlockGen) { block.SetCoinbase(common.Address{seed}) // If a heavy chain is requested, delay blocks to raise difficulty if heavy { - block.OffsetTime(-1) + block.OffsetTime(-9) } // Include transactions to the miner to make blocks more interesting. - if parent == tc.genesis && i%22 == 0 { + if parent == tc.blocks[0] && i%22 == 0 { signer := types.MakeSigner(params.TestChainConfig, block.Number()) tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), params.TxGas, block.BaseFee(), nil), signer, testKey) if err != nil { @@ -136,95 +172,56 @@ func (tc *testChain) generate(n int, seed byte, parent *types.Block, heavy bool) // if the block number is a multiple of 5, add a bonus uncle to the block if i > 0 && i%5 == 0 { block.AddUncle(&types.Header{ - ParentHash: block.PrevBlock(i - 1).Hash(), + ParentHash: block.PrevBlock(i - 2).Hash(), Number: big.NewInt(block.Number().Int64() - 1), }) } }) + tc.blocks = append(tc.blocks, blocks...) +} - // Convert the block-chain into a hash-chain and header/block maps - td := new(big.Int).Set(tc.td(parent.Hash())) - for i, b := range blocks { - td := td.Add(td, b.Difficulty()) - hash := b.Hash() - tc.chain = append(tc.chain, hash) - tc.blockm[hash] = b - tc.headerm[hash] = b.Header() - tc.receiptm[hash] = receipts[i] - tc.tdm[hash] = new(big.Int).Set(td) +var ( + testBlockchains = make(map[common.Hash]*testBlockchain) + testBlockchainsLock sync.Mutex +) + +type testBlockchain struct { + chain *core.BlockChain + gen sync.Once +} + +// newTestBlockchain creates a blockchain database built by running the given blocks, +// either actually running them, or reusing a previously created one. The returned +// chains are *shared*, so *do not* mutate them. +func newTestBlockchain(blocks []*types.Block) *core.BlockChain { + // Retrieve an existing database, or create a new one + head := testGenesis.Hash() + if len(blocks) > 0 { + head = blocks[len(blocks)-1].Hash() } -} - -// len returns the total number of blocks in the chain. -func (tc *testChain) len() int { - return len(tc.chain) -} - -// headBlock returns the head of the chain. -func (tc *testChain) headBlock() *types.Block { - return tc.blockm[tc.chain[len(tc.chain)-1]] -} - -// td returns the total difficulty of the given block. -func (tc *testChain) td(hash common.Hash) *big.Int { - return tc.tdm[hash] -} - -// headersByHash returns headers in order from the given hash. -func (tc *testChain) headersByHash(origin common.Hash, amount int, skip int, reverse bool) []*types.Header { - num, _ := tc.hashToNumber(origin) - return tc.headersByNumber(num, amount, skip, reverse) -} - -// headersByNumber returns headers from the given number. -func (tc *testChain) headersByNumber(origin uint64, amount int, skip int, reverse bool) []*types.Header { - result := make([]*types.Header, 0, amount) - - if !reverse { - for num := origin; num < uint64(len(tc.chain)) && len(result) < amount; num += uint64(skip) + 1 { - if header, ok := tc.headerm[tc.chain[int(num)]]; ok { - result = append(result, header) - } - } - } else { - for num := int64(origin); num >= 0 && len(result) < amount; num -= int64(skip) + 1 { - if header, ok := tc.headerm[tc.chain[int(num)]]; ok { - result = append(result, header) - } - } + testBlockchainsLock.Lock() + if _, ok := testBlockchains[head]; !ok { + testBlockchains[head] = new(testBlockchain) } - return result -} + tbc := testBlockchains[head] + testBlockchainsLock.Unlock() -// receipts returns the receipts of the given block hashes. -func (tc *testChain) receipts(hashes []common.Hash) [][]*types.Receipt { - results := make([][]*types.Receipt, 0, len(hashes)) - for _, hash := range hashes { - if receipt, ok := tc.receiptm[hash]; ok { - results = append(results, receipt) + // Ensure that the database is generated + tbc.gen.Do(func() { + if pregenerated { + panic("Requested chain generation outside of init") } - } - return results -} + db := rawdb.NewMemoryDatabase() + core.GenesisBlockForTesting(db, testAddress, big.NewInt(1000000000000000)) -// bodies returns the block bodies of the given block hashes. -func (tc *testChain) bodies(hashes []common.Hash) ([][]*types.Transaction, [][]*types.Header) { - transactions := make([][]*types.Transaction, 0, len(hashes)) - uncles := make([][]*types.Header, 0, len(hashes)) - for _, hash := range hashes { - if block, ok := tc.blockm[hash]; ok { - transactions = append(transactions, block.Transactions()) - uncles = append(uncles, block.Uncles()) + chain, err := core.NewBlockChain(db, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil) + if err != nil { + panic(err) } - } - return transactions, uncles -} - -func (tc *testChain) hashToNumber(target common.Hash) (uint64, bool) { - for num, hash := range tc.chain { - if hash == target { - return uint64(num), true + if n, err := chain.InsertChain(blocks); err != nil { + panic(fmt.Sprintf("block %d: %v", n, err)) } - } - return 0, false + tbc.chain = chain + }) + return tbc.chain } diff --git a/eth/downloader/types.go b/eth/downloader/types.go deleted file mode 100644 index ff70bfa0e..000000000 --- a/eth/downloader/types.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package downloader - -import ( - "fmt" - - "github.com/ethereum/go-ethereum/core/types" -) - -// peerDropFn is a callback type for dropping a peer detected as malicious. -type peerDropFn func(id string) - -// dataPack is a data message returned by a peer for some query. -type dataPack interface { - PeerId() string - Items() int - Stats() string -} - -// headerPack is a batch of block headers returned by a peer. -type headerPack struct { - peerID string - headers []*types.Header -} - -func (p *headerPack) PeerId() string { return p.peerID } -func (p *headerPack) Items() int { return len(p.headers) } -func (p *headerPack) Stats() string { return fmt.Sprintf("%d", len(p.headers)) } - -// bodyPack is a batch of block bodies returned by a peer. -type bodyPack struct { - peerID string - transactions [][]*types.Transaction - uncles [][]*types.Header -} - -func (p *bodyPack) PeerId() string { return p.peerID } -func (p *bodyPack) Items() int { - if len(p.transactions) <= len(p.uncles) { - return len(p.transactions) - } - return len(p.uncles) -} -func (p *bodyPack) Stats() string { return fmt.Sprintf("%d:%d", len(p.transactions), len(p.uncles)) } - -// receiptPack is a batch of receipts returned by a peer. -type receiptPack struct { - peerID string - receipts [][]*types.Receipt -} - -func (p *receiptPack) PeerId() string { return p.peerID } -func (p *receiptPack) Items() int { return len(p.receipts) } -func (p *receiptPack) Stats() string { return fmt.Sprintf("%d", len(p.receipts)) } - -// statePack is a batch of states returned by a peer. -type statePack struct { - peerID string - states [][]byte -} - -func (p *statePack) PeerId() string { return p.peerID } -func (p *statePack) Items() int { return len(p.states) } -func (p *statePack) Stats() string { return fmt.Sprintf("%d", len(p.states)) } diff --git a/eth/fetcher/block_fetcher.go b/eth/fetcher/block_fetcher.go index 7624268a7..247d0eac6 100644 --- a/eth/fetcher/block_fetcher.go +++ b/eth/fetcher/block_fetcher.go @@ -26,6 +26,7 @@ import ( "github.com/ethereum/go-ethereum/common/prque" "github.com/ethereum/go-ethereum/consensus" "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/eth/protocols/eth" "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/metrics" "github.com/ethereum/go-ethereum/trie" @@ -74,10 +75,10 @@ type HeaderRetrievalFn func(common.Hash) *types.Header type blockRetrievalFn func(common.Hash) *types.Block // headerRequesterFn is a callback type for sending a header retrieval request. -type headerRequesterFn func(common.Hash) error +type headerRequesterFn func(common.Hash, chan *eth.Response) (*eth.Request, error) // bodyRequesterFn is a callback type for sending a body retrieval request. -type bodyRequesterFn func([]common.Hash) error +type bodyRequesterFn func([]common.Hash, chan *eth.Response) (*eth.Request, error) // headerVerifierFn is a callback type to verify a block's header for fast propagation. type headerVerifierFn func(header *types.Header) error @@ -461,15 +462,28 @@ func (f *BlockFetcher) loop() { // Create a closure of the fetch and schedule in on a new thread fetchHeader, hashes := f.fetching[hashes[0]].fetchHeader, hashes - go func() { + go func(peer string) { if f.fetchingHook != nil { f.fetchingHook(hashes) } for _, hash := range hashes { headerFetchMeter.Mark(1) - fetchHeader(hash) // Suboptimal, but protocol doesn't allow batch header retrievals + go func(hash common.Hash) { + resCh := make(chan *eth.Response) + + req, err := fetchHeader(hash, resCh) + if err != nil { + return // Legacy code, yolo + } + defer req.Close() + + res := <-resCh + res.Done <- nil + + f.FilterHeaders(peer, *res.Res.(*eth.BlockHeadersPacket), time.Now().Add(res.Time)) + }(hash) } - }() + }(peer) } // Schedule the next fetch if blocks are still pending f.rescheduleFetch(fetchTimer) @@ -497,8 +511,24 @@ func (f *BlockFetcher) loop() { if f.completingHook != nil { f.completingHook(hashes) } + fetchBodies := f.completing[hashes[0]].fetchBodies bodyFetchMeter.Mark(int64(len(hashes))) - go f.completing[hashes[0]].fetchBodies(hashes) + + go func(peer string, hashes []common.Hash) { + resCh := make(chan *eth.Response) + + req, err := fetchBodies(hashes, resCh) + if err != nil { + return // Legacy code, yolo + } + defer req.Close() + + res := <-resCh + res.Done <- nil + + txs, uncles := res.Res.(*eth.BlockBodiesPacket).Unpack() + f.FilterBodies(peer, txs, uncles, time.Now()) + }(peer, hashes) } // Schedule the next fetch if blocks are still pending f.rescheduleComplete(completeTimer) diff --git a/eth/fetcher/block_fetcher_test.go b/eth/fetcher/block_fetcher_test.go index b6d1125b5..628a56504 100644 --- a/eth/fetcher/block_fetcher_test.go +++ b/eth/fetcher/block_fetcher_test.go @@ -30,6 +30,7 @@ import ( "github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/eth/protocols/eth" "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/trie" ) @@ -60,8 +61,8 @@ func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common block.AddTx(tx) } // If the block number is a multiple of 5, add a bonus uncle to the block - if i%5 == 0 { - block.AddUncle(&types.Header{ParentHash: block.PrevBlock(i - 1).Hash(), Number: big.NewInt(int64(i - 1))}) + if i > 0 && i%5 == 0 { + block.AddUncle(&types.Header{ParentHash: block.PrevBlock(i - 2).Hash(), Number: big.NewInt(int64(i - 1))}) } }) hashes := make([]common.Hash, n+1) @@ -195,16 +196,26 @@ func (f *fetcherTester) makeHeaderFetcher(peer string, blocks map[common.Hash]*t closure[hash] = block } // Create a function that return a header from the closure - return func(hash common.Hash) error { + return func(hash common.Hash, sink chan *eth.Response) (*eth.Request, error) { // Gather the blocks to return headers := make([]*types.Header, 0, 1) if block, ok := closure[hash]; ok { headers = append(headers, block.Header()) } // Return on a new thread - go f.fetcher.FilterHeaders(peer, headers, time.Now().Add(drift)) - - return nil + req := ð.Request{ + Peer: peer, + } + res := ð.Response{ + Req: req, + Res: (*eth.BlockHeadersPacket)(&headers), + Time: drift, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil } } @@ -215,7 +226,7 @@ func (f *fetcherTester) makeBodyFetcher(peer string, blocks map[common.Hash]*typ closure[hash] = block } // Create a function that returns blocks from the closure - return func(hashes []common.Hash) error { + return func(hashes []common.Hash, sink chan *eth.Response) (*eth.Request, error) { // Gather the block bodies to return transactions := make([][]*types.Transaction, 0, len(hashes)) uncles := make([][]*types.Header, 0, len(hashes)) @@ -227,14 +238,33 @@ func (f *fetcherTester) makeBodyFetcher(peer string, blocks map[common.Hash]*typ } } // Return on a new thread - go f.fetcher.FilterBodies(peer, transactions, uncles, time.Now().Add(drift)) - - return nil + bodies := make([]*eth.BlockBody, len(transactions)) + for i, txs := range transactions { + bodies[i] = ð.BlockBody{ + Transactions: txs, + Uncles: uncles[i], + } + } + req := ð.Request{ + Peer: peer, + } + res := ð.Response{ + Req: req, + Res: (*eth.BlockBodiesPacket)(&bodies), + Time: drift, + Done: make(chan error, 1), // Ignore the returned status + } + go func() { + sink <- res + }() + return req, nil } } // verifyFetchingEvent verifies that one single event arrive on a fetching channel. func verifyFetchingEvent(t *testing.T, fetching chan []common.Hash, arrive bool) { + t.Helper() + if arrive { select { case <-fetching: @@ -252,6 +282,8 @@ func verifyFetchingEvent(t *testing.T, fetching chan []common.Hash, arrive bool) // verifyCompletingEvent verifies that one single event arrive on an completing channel. func verifyCompletingEvent(t *testing.T, completing chan []common.Hash, arrive bool) { + t.Helper() + if arrive { select { case <-completing: @@ -269,6 +301,8 @@ func verifyCompletingEvent(t *testing.T, completing chan []common.Hash, arrive b // verifyImportEvent verifies that one single event arrive on an import channel. func verifyImportEvent(t *testing.T, imported chan interface{}, arrive bool) { + t.Helper() + if arrive { select { case <-imported: @@ -287,6 +321,8 @@ func verifyImportEvent(t *testing.T, imported chan interface{}, arrive bool) { // verifyImportCount verifies that exactly count number of events arrive on an // import hook channel. func verifyImportCount(t *testing.T, imported chan interface{}, count int) { + t.Helper() + for i := 0; i < count; i++ { select { case <-imported: @@ -299,6 +335,8 @@ func verifyImportCount(t *testing.T, imported chan interface{}, count int) { // verifyImportDone verifies that no more events are arriving on an import channel. func verifyImportDone(t *testing.T, imported chan interface{}) { + t.Helper() + select { case <-imported: t.Fatalf("extra block imported") @@ -308,6 +346,8 @@ func verifyImportDone(t *testing.T, imported chan interface{}) { // verifyChainHeight verifies the chain height is as expected. func verifyChainHeight(t *testing.T, fetcher *fetcherTester, height uint64) { + t.Helper() + if fetcher.chainHeight() != height { t.Fatalf("chain height mismatch, got %d, want %d", fetcher.chainHeight(), height) } @@ -368,13 +408,13 @@ func testConcurrentAnnouncements(t *testing.T, light bool) { secondBodyFetcher := tester.makeBodyFetcher("second", blocks, 0) counter := uint32(0) - firstHeaderWrapper := func(hash common.Hash) error { + firstHeaderWrapper := func(hash common.Hash, sink chan *eth.Response) (*eth.Request, error) { atomic.AddUint32(&counter, 1) - return firstHeaderFetcher(hash) + return firstHeaderFetcher(hash, sink) } - secondHeaderWrapper := func(hash common.Hash) error { + secondHeaderWrapper := func(hash common.Hash, sink chan *eth.Response) (*eth.Request, error) { atomic.AddUint32(&counter, 1) - return secondHeaderFetcher(hash) + return secondHeaderFetcher(hash, sink) } // Iteratively announce blocks until all are imported imported := make(chan interface{}) @@ -468,15 +508,20 @@ func testPendingDeduplication(t *testing.T, light bool) { delay := 50 * time.Millisecond counter := uint32(0) - headerWrapper := func(hash common.Hash) error { + headerWrapper := func(hash common.Hash, sink chan *eth.Response) (*eth.Request, error) { atomic.AddUint32(&counter, 1) // Simulate a long running fetch - go func() { - time.Sleep(delay) - headerFetcher(hash) - }() - return nil + resink := make(chan *eth.Response) + req, err := headerFetcher(hash, resink) + if err == nil { + go func() { + res := <-resink + time.Sleep(delay) + sink <- res + }() + } + return req, err } checkNonExist := func() bool { return tester.getBlock(hashes[0]) == nil diff --git a/eth/handler.go b/eth/handler.go index 20ad8692c..26a90495b 100644 --- a/eth/handler.go +++ b/eth/handler.go @@ -83,8 +83,8 @@ type handlerConfig struct { TxPool txPool // Transaction pool to propagate from Merger *consensus.Merger // The manager for eth1/2 transition Network uint64 // Network identifier to adfvertise - Sync downloader.SyncMode // Whether to fast or full sync - BloomCache uint64 // Megabytes to alloc for fast sync bloom + Sync downloader.SyncMode // Whether to snap or full sync + BloomCache uint64 // Megabytes to alloc for snap sync bloom EventMux *event.TypeMux // Legacy event mux, deprecate for `feed` Checkpoint *params.TrustedCheckpoint // Hard coded checkpoint for sync challenges Whitelist map[uint64]common.Hash // Hard coded whitelist for sync challenged @@ -94,8 +94,7 @@ type handler struct { networkID uint64 forkFilter forkid.Filter // Fork ID filter, constant across the lifetime of the node - fastSync uint32 // Flag whether fast sync is enabled (gets disabled if we already have blocks) - snapSync uint32 // Flag whether fast sync should operate on top of the snap protocol + snapSync uint32 // Flag whether snap sync is enabled (gets disabled if we already have blocks) acceptTxs uint32 // Flag whether we're considered synchronised (enables transaction processing) checkpointNumber uint64 // Block number for the sync progress validator to cross reference @@ -147,29 +146,26 @@ func newHandler(config *handlerConfig) (*handler, error) { quitSync: make(chan struct{}), } if config.Sync == downloader.FullSync { - // The database seems empty as the current block is the genesis. Yet the fast - // block is ahead, so fast sync was enabled for this node at a certain point. + // The database seems empty as the current block is the genesis. Yet the snap + // block is ahead, so snap sync was enabled for this node at a certain point. // The scenarios where this can happen is - // * if the user manually (or via a bad block) rolled back a fast sync node + // * if the user manually (or via a bad block) rolled back a snap sync node // below the sync point. - // * the last fast sync is not finished while user specifies a full sync this + // * the last snap sync is not finished while user specifies a full sync this // time. But we don't have any recent state for full sync. - // In these cases however it's safe to reenable fast sync. + // In these cases however it's safe to reenable snap sync. fullBlock, fastBlock := h.chain.CurrentBlock(), h.chain.CurrentFastBlock() if fullBlock.NumberU64() == 0 && fastBlock.NumberU64() > 0 { - h.fastSync = uint32(1) - log.Warn("Switch sync mode from full sync to fast sync") + h.snapSync = uint32(1) + log.Warn("Switch sync mode from full sync to snap sync") } } else { if h.chain.CurrentBlock().NumberU64() > 0 { - // Print warning log if database is not empty to run fast sync. - log.Warn("Switch sync mode from fast sync to full sync") + // Print warning log if database is not empty to run snap sync. + log.Warn("Switch sync mode from snap sync to full sync") } else { - // If fast sync was requested and our database is empty, grant it - h.fastSync = uint32(1) - if config.Sync == downloader.SnapSync { - h.snapSync = uint32(1) - } + // If snap sync was requested and our database is empty, grant it + h.snapSync = uint32(1) } } // If we have trusted checkpoints, enforce them on the chain @@ -177,14 +173,14 @@ func newHandler(config *handlerConfig) (*handler, error) { h.checkpointNumber = (config.Checkpoint.SectionIndex+1)*params.CHTFrequency - 1 h.checkpointHash = config.Checkpoint.SectionHead } - // Construct the downloader (long sync) and its backing state bloom if fast + // Construct the downloader (long sync) and its backing state bloom if snap // sync is requested. The downloader is responsible for deallocating the state // bloom when it's done. // Note: we don't enable it if snap-sync is performed, since it's very heavy - // and the heal-portion of the snap sync is much lighter than fast. What we particularly + // and the heal-portion of the snap sync is much lighter than snap. What we particularly // want to avoid, is a 90%-finished (but restarted) snap-sync to begin // indexing the entire trie - if atomic.LoadUint32(&h.fastSync) == 1 && atomic.LoadUint32(&h.snapSync) == 0 { + if atomic.LoadUint32(&h.snapSync) == 1 && atomic.LoadUint32(&h.snapSync) == 0 { h.stateBloom = trie.NewSyncBloom(config.BloomCache, config.Database) } h.downloader = downloader.New(h.checkpointNumber, config.Database, h.stateBloom, h.eventMux, h.chain, nil, h.removePeer) @@ -236,12 +232,12 @@ func newHandler(config *handlerConfig) (*handler, error) { log.Warn("Unsynced yet, discarded propagated block", "number", blocks[0].Number(), "hash", blocks[0].Hash()) return 0, nil } - // If fast sync is running, deny importing weird blocks. This is a problematic - // clause when starting up a new network, because fast-syncing miners might not + // If snap sync is running, deny importing weird blocks. This is a problematic + // clause when starting up a new network, because snap-syncing miners might not // accept each others' blocks until a restart. Unfortunately we haven't figured // out a way yet where nodes can decide unilaterally whether the network is new // or not. This should be fixed if we figure out a solution. - if atomic.LoadUint32(&h.fastSync) == 1 { + if atomic.LoadUint32(&h.snapSync) == 1 { log.Warn("Fast syncing, discarded propagated block", "number", blocks[0].Number(), "hash", blocks[0].Hash()) return 0, nil } @@ -365,30 +361,93 @@ func (h *handler) runEthPeer(peer *eth.Peer, handler eth.Handler) error { // after this will be sent via broadcasts. h.syncTransactions(peer) + // Create a notification channel for pending requests if the peer goes down + dead := make(chan struct{}) + defer close(dead) + // If we have a trusted CHT, reject all peers below that (avoid fast sync eclipse) if h.checkpointHash != (common.Hash{}) { // Request the peer's checkpoint header for chain height/weight validation - if err := peer.RequestHeadersByNumber(h.checkpointNumber, 1, 0, false); err != nil { + resCh := make(chan *eth.Response) + if _, err := peer.RequestHeadersByNumber(h.checkpointNumber, 1, 0, false, resCh); err != nil { return err } // Start a timer to disconnect if the peer doesn't reply in time - p.syncDrop = time.AfterFunc(syncChallengeTimeout, func() { - peer.Log().Warn("Checkpoint challenge timed out, dropping", "addr", peer.RemoteAddr(), "type", peer.Name()) - h.removePeer(peer.ID()) - }) - // Make sure it's cleaned up if the peer dies off - defer func() { - if p.syncDrop != nil { - p.syncDrop.Stop() - p.syncDrop = nil + go func() { + timeout := time.NewTimer(syncChallengeTimeout) + defer timeout.Stop() + + select { + case res := <-resCh: + headers := ([]*types.Header)(*res.Res.(*eth.BlockHeadersPacket)) + if len(headers) == 0 { + // If we're doing a snap sync, we must enforce the checkpoint + // block to avoid eclipse attacks. Unsynced nodes are welcome + // to connect after we're done joining the network. + if atomic.LoadUint32(&h.snapSync) == 1 { + peer.Log().Warn("Dropping unsynced node during sync", "addr", peer.RemoteAddr(), "type", peer.Name()) + res.Done <- errors.New("unsynced node cannot serve sync") + return + } + res.Done <- nil + return + } + // Validate the header and either drop the peer or continue + if len(headers) > 1 { + res.Done <- errors.New("too many headers in checkpoint response") + return + } + if headers[0].Hash() != h.checkpointHash { + res.Done <- errors.New("checkpoint hash mismatch") + return + } + res.Done <- nil + + case <-timeout.C: + peer.Log().Warn("Checkpoint challenge timed out, dropping", "addr", peer.RemoteAddr(), "type", peer.Name()) + h.removePeer(peer.ID()) + + case <-dead: + // Peer handler terminated, abort all goroutines } }() } // If we have any explicit whitelist block hashes, request them - for number := range h.whitelist { - if err := peer.RequestHeadersByNumber(number, 1, 0, false); err != nil { + for number, hash := range h.whitelist { + resCh := make(chan *eth.Response) + if _, err := peer.RequestHeadersByNumber(number, 1, 0, false, resCh); err != nil { return err } + go func(number uint64, hash common.Hash) { + timeout := time.NewTimer(syncChallengeTimeout) + defer timeout.Stop() + + select { + case res := <-resCh: + headers := ([]*types.Header)(*res.Res.(*eth.BlockHeadersPacket)) + if len(headers) == 0 { + // Whitelisted blocks are allowed to be missing if the remote + // node is not yet synced + res.Done <- nil + return + } + // Validate the header and either drop the peer or continue + if len(headers) > 1 { + res.Done <- errors.New("too many headers in whitelist response") + return + } + if headers[0].Number.Uint64() != number || headers[0].Hash() != hash { + peer.Log().Info("Whitelist mismatch, dropping peer", "number", number, "hash", headers[0].Hash(), "want", hash) + res.Done <- errors.New("whitelist block mismatch") + return + } + peer.Log().Debug("Whitelist block verified", "number", number, "hash", hash) + + case <-timeout.C: + peer.Log().Warn("Whitelist challenge timed out, dropping", "addr", peer.RemoteAddr(), "type", peer.Name()) + h.removePeer(peer.ID()) + } + }(number, hash) } // Handle incoming messages until the connection is torn down return handler(peer) diff --git a/eth/handler_eth.go b/eth/handler_eth.go index 3c22dce0a..335558249 100644 --- a/eth/handler_eth.go +++ b/eth/handler_eth.go @@ -17,7 +17,6 @@ package eth import ( - "errors" "fmt" "math/big" "sync/atomic" @@ -27,7 +26,6 @@ import ( "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/eth/protocols/eth" - "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/p2p/enode" "github.com/ethereum/go-ethereum/trie" ) @@ -64,25 +62,6 @@ func (h *ethHandler) AcceptTxs() bool { func (h *ethHandler) Handle(peer *eth.Peer, packet eth.Packet) error { // Consume any broadcasts and announces, forwarding the rest to the downloader switch packet := packet.(type) { - case *eth.BlockHeadersPacket: - return h.handleHeaders(peer, *packet) - - case *eth.BlockBodiesPacket: - txset, uncleset := packet.Unpack() - return h.handleBodies(peer, txset, uncleset) - - case *eth.NodeDataPacket: - if err := h.downloader.DeliverNodeData(peer.ID(), *packet); err != nil { - log.Debug("Failed to deliver node state data", "err", err) - } - return nil - - case *eth.ReceiptsPacket: - if err := h.downloader.DeliverReceipts(peer.ID(), *packet); err != nil { - log.Debug("Failed to deliver receipts", "err", err) - } - return nil - case *eth.NewBlockHashesPacket: hashes, numbers := packet.Unpack() return h.handleBlockAnnounces(peer, hashes, numbers) @@ -104,79 +83,6 @@ func (h *ethHandler) Handle(peer *eth.Peer, packet eth.Packet) error { } } -// handleHeaders is invoked from a peer's message handler when it transmits a batch -// of headers for the local node to process. -func (h *ethHandler) handleHeaders(peer *eth.Peer, headers []*types.Header) error { - p := h.peers.peer(peer.ID()) - if p == nil { - return errors.New("unregistered during callback") - } - // If no headers were received, but we're expencting a checkpoint header, consider it that - if len(headers) == 0 && p.syncDrop != nil { - // Stop the timer either way, decide later to drop or not - p.syncDrop.Stop() - p.syncDrop = nil - - // If we're doing a fast (or snap) sync, we must enforce the checkpoint block to avoid - // eclipse attacks. Unsynced nodes are welcome to connect after we're done - // joining the network - if atomic.LoadUint32(&h.fastSync) == 1 { - peer.Log().Warn("Dropping unsynced node during sync", "addr", peer.RemoteAddr(), "type", peer.Name()) - return errors.New("unsynced node cannot serve sync") - } - } - // Filter out any explicitly requested headers, deliver the rest to the downloader - filter := len(headers) == 1 - if filter { - // If it's a potential sync progress check, validate the content and advertised chain weight - if p.syncDrop != nil && headers[0].Number.Uint64() == h.checkpointNumber { - // Disable the sync drop timer - p.syncDrop.Stop() - p.syncDrop = nil - - // Validate the header and either drop the peer or continue - if headers[0].Hash() != h.checkpointHash { - return errors.New("checkpoint hash mismatch") - } - return nil - } - // Otherwise if it's a whitelisted block, validate against the set - if want, ok := h.whitelist[headers[0].Number.Uint64()]; ok { - if hash := headers[0].Hash(); want != hash { - peer.Log().Info("Whitelist mismatch, dropping peer", "number", headers[0].Number.Uint64(), "hash", hash, "want", want) - return errors.New("whitelist block mismatch") - } - peer.Log().Debug("Whitelist block verified", "number", headers[0].Number.Uint64(), "hash", want) - } - // Irrelevant of the fork checks, send the header to the fetcher just in case - headers = h.blockFetcher.FilterHeaders(peer.ID(), headers, time.Now()) - } - if len(headers) > 0 || !filter { - err := h.downloader.DeliverHeaders(peer.ID(), headers) - if err != nil { - log.Debug("Failed to deliver headers", "err", err) - } - } - return nil -} - -// handleBodies is invoked from a peer's message handler when it transmits a batch -// of block bodies for the local node to process. -func (h *ethHandler) handleBodies(peer *eth.Peer, txs [][]*types.Transaction, uncles [][]*types.Header) error { - // Filter out any explicitly requested bodies, deliver the rest to the downloader - filter := len(txs) > 0 || len(uncles) > 0 - if filter { - txs, uncles = h.blockFetcher.FilterBodies(peer.ID(), txs, uncles, time.Now()) - } - if len(txs) > 0 || len(uncles) > 0 || !filter { - err := h.downloader.DeliverBodies(peer.ID(), txs, uncles) - if err != nil { - log.Debug("Failed to deliver bodies", "err", err) - } - } - return nil -} - // handleBlockAnnounces is invoked from a peer's message handler when it transmits a // batch of block announcements for the local node to process. func (h *ethHandler) handleBlockAnnounces(peer *eth.Peer, hashes []common.Hash, numbers []uint64) error { diff --git a/eth/handler_eth_test.go b/eth/handler_eth_test.go index 38f0427d0..311fbac9c 100644 --- a/eth/handler_eth_test.go +++ b/eth/handler_eth_test.go @@ -354,7 +354,7 @@ func testSendTransactions(t *testing.T, protocol uint) { seen := make(map[common.Hash]struct{}) for len(seen) < len(insert) { switch protocol { - case 65, 66: + case 66: select { case hashes := <-anns: for _, hash := range hashes { @@ -364,7 +364,7 @@ func testSendTransactions(t *testing.T, protocol uint) { seen[hash] = struct{}{} } case <-bcasts: - t.Errorf("initial tx broadcast received on post eth/65") + t.Errorf("initial tx broadcast received on post eth/66") } default: @@ -389,6 +389,7 @@ func testTransactionPropagation(t *testing.T, protocol uint) { // to receive them. We need multiple sinks since a one-to-one peering would // broadcast all transactions without announcement. source := newTestHandler() + source.handler.snapSync = 0 // Avoid requiring snap, otherwise some will be dropped below defer source.close() sinks := make([]*testHandler, 10) @@ -406,7 +407,7 @@ func testTransactionPropagation(t *testing.T, protocol uint) { defer sourcePipe.Close() defer sinkPipe.Close() - sourcePeer := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{byte(i)}, "", nil, sourcePipe), sourcePipe, source.txpool) + sourcePeer := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{byte(i + 1)}, "", nil, sourcePipe), sourcePipe, source.txpool) sinkPeer := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{0}, "", nil, sinkPipe), sinkPipe, sink.txpool) defer sourcePeer.Close() defer sinkPeer.Close() @@ -438,12 +439,13 @@ func testTransactionPropagation(t *testing.T, protocol uint) { // Iterate through all the sinks and ensure they all got the transactions for i := range sinks { - for arrived := 0; arrived < len(txs); { + for arrived, timeout := 0, false; arrived < len(txs) && !timeout; { select { case event := <-txChs[i]: arrived += len(event.Txs) - case <-time.NewTimer(time.Second).C: + case <-time.After(time.Second): t.Errorf("sink %d: transaction propagation timed out: have %d, want %d", i, arrived, len(txs)) + timeout = true } } } @@ -463,23 +465,23 @@ func TestCheckpointChallenge(t *testing.T) { }{ // If checkpointing is not enabled locally, don't challenge and don't drop {downloader.FullSync, false, false, false, false, false}, - {downloader.FastSync, false, false, false, false, false}, + {downloader.SnapSync, false, false, false, false, false}, // If checkpointing is enabled locally and remote response is empty, only drop during fast sync {downloader.FullSync, true, false, true, false, false}, - {downloader.FastSync, true, false, true, false, true}, // Special case, fast sync, unsynced peer + {downloader.SnapSync, true, false, true, false, true}, // Special case, fast sync, unsynced peer // If checkpointing is enabled locally and remote response mismatches, always drop {downloader.FullSync, true, false, false, false, true}, - {downloader.FastSync, true, false, false, false, true}, + {downloader.SnapSync, true, false, false, false, true}, // If checkpointing is enabled locally and remote response matches, never drop {downloader.FullSync, true, false, false, true, false}, - {downloader.FastSync, true, false, false, true, false}, + {downloader.SnapSync, true, false, false, true, false}, // If checkpointing is enabled locally and remote times out, always drop {downloader.FullSync, true, true, false, true, true}, - {downloader.FastSync, true, true, false, true, true}, + {downloader.SnapSync, true, true, false, true, true}, } for _, tt := range tests { t.Run(fmt.Sprintf("sync %v checkpoint %v timeout %v empty %v match %v", tt.syncmode, tt.checkpoint, tt.timeout, tt.empty, tt.match), func(t *testing.T) { @@ -500,10 +502,10 @@ func testCheckpointChallenge(t *testing.T, syncmode downloader.SyncMode, checkpo handler := newTestHandler() defer handler.close() - if syncmode == downloader.FastSync { - atomic.StoreUint32(&handler.handler.fastSync, 1) + if syncmode == downloader.SnapSync { + atomic.StoreUint32(&handler.handler.snapSync, 1) } else { - atomic.StoreUint32(&handler.handler.fastSync, 0) + atomic.StoreUint32(&handler.handler.snapSync, 0) } var response *types.Header if checkpoint { diff --git a/eth/handler_test.go b/eth/handler_test.go index 040bfe627..d967b6df9 100644 --- a/eth/handler_test.go +++ b/eth/handler_test.go @@ -152,7 +152,7 @@ func newTestHandlerWithBlocks(blocks int) *testHandler { TxPool: txpool, Merger: consensus.NewMerger(rawdb.NewMemoryDatabase()), Network: 1, - Sync: downloader.FastSync, + Sync: downloader.SnapSync, BloomCache: 1, }) handler.Start(1000) diff --git a/eth/peer.go b/eth/peer.go index 1cea9c640..024a6e619 100644 --- a/eth/peer.go +++ b/eth/peer.go @@ -18,8 +18,6 @@ package eth import ( "math/big" - "sync" - "time" "github.com/ethereum/go-ethereum/eth/protocols/eth" "github.com/ethereum/go-ethereum/eth/protocols/snap" @@ -36,11 +34,8 @@ type ethPeerInfo struct { // ethPeer is a wrapper around eth.Peer to maintain a few extra metadata. type ethPeer struct { *eth.Peer - snapExt *snapPeer // Satellite `snap` connection - - syncDrop *time.Timer // Connection dropper if `eth` sync progress isn't validated in time + snapExt *snapPeer // Satellite `snap` connection snapWait chan struct{} // Notification channel for snap connections - lock sync.RWMutex // Mutex protecting the internal fields } // info gathers and returns some `eth` protocol metadata known about a peer. diff --git a/eth/protocols/eth/dispatcher.go b/eth/protocols/eth/dispatcher.go new file mode 100644 index 000000000..d2e4f488c --- /dev/null +++ b/eth/protocols/eth/dispatcher.go @@ -0,0 +1,247 @@ +// Copyright 2021 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package eth + +import ( + "errors" + "fmt" + "time" + + "github.com/ethereum/go-ethereum/p2p" +) + +var ( + // errDisconnected is returned if a request is attempted to be made to a peer + // that was already closed. + errDisconnected = errors.New("disconnected") + + // errDanglingResponse is returned if a response arrives with a request id + // which does not match to any existing pending requests. + errDanglingResponse = errors.New("response to non-existent request") + + // errMismatchingResponseType is returned if the remote peer sent a different + // packet type as a response to a request than what the local node expected. + errMismatchingResponseType = errors.New("mismatching response type") +) + +// Request is a pending request to allow tracking it and delivering a response +// back to the requester on their chosen channel. +type Request struct { + peer *Peer // Peer to which this request belogs for untracking + id uint64 // Request ID to match up replies to + + sink chan *Response // Channel to deliver the response on + cancel chan struct{} // Channel to cancel requests ahead of time + + code uint64 // Message code of the request packet + want uint64 // Message code of the response packet + data interface{} // Data content of the request packet + + Peer string // Demultiplexer if cross-peer requests are batched together + Sent time.Time // Timestamp when the request was sent +} + +// Close aborts an in-flight request. Although there's no way to notify the +// remote peer about the cancellation, this method notifies the dispatcher to +// discard any late responses. +func (r *Request) Close() error { + if r.peer == nil { // Tests mock out the dispatcher, skip internal cancellation + return nil + } + cancelOp := &cancel{ + id: r.id, + fail: make(chan error), + } + select { + case r.peer.reqCancel <- cancelOp: + if err := <-cancelOp.fail; err != nil { + return err + } + close(r.cancel) + return nil + case <-r.peer.term: + return errDisconnected + } +} + +// request is a wrapper around a client Request that has an error channel to +// signal on if sending the request already failed on a network level. +type request struct { + req *Request + fail chan error +} + +// cancel is a maintenance type on the dispatcher to stop tracking a pending +// request. +type cancel struct { + id uint64 // Request ID to stop tracking + fail chan error +} + +// Response is a reply packet to a previously created request. It is delivered +// on the channel assigned by the requester subsystem and contains the original +// request embedded to allow uniquely matching it caller side. +type Response struct { + id uint64 // Request ID to match up this reply to + recv time.Time // Timestamp when the request was received + code uint64 // Response packet type to cross validate with request + + Req *Request // Original request to cross-reference with + Res interface{} // Remote response for the request query + Time time.Duration // Time it took for the request to be served + Done chan error // Channel to signal message handling to the reader +} + +// response is a wrapper around a remote Response that has an error channel to +// signal on if processing the response failed. +type response struct { + res *Response + fail chan error +} + +// dispatchRequest schedules the request to the dispatcher for tracking and +// network serialization, blocking until it's successfully sent. +// +// The returned Request must either be closed before discarding it, or the reply +// must be waited for and the Response's Done channel signalled. +func (p *Peer) dispatchRequest(req *Request) error { + reqOp := &request{ + req: req, + fail: make(chan error), + } + req.cancel = make(chan struct{}) + req.peer = p + req.Peer = p.id + + select { + case p.reqDispatch <- reqOp: + return <-reqOp.fail + case <-p.term: + return errDisconnected + } +} + +// dispatchRequest fulfils a pending request and delivers it to the requested +// sink. +func (p *Peer) dispatchResponse(res *Response) error { + resOp := &response{ + res: res, + fail: make(chan error), + } + res.recv = time.Now() + res.Done = make(chan error) + + select { + case p.resDispatch <- resOp: + // Ensure the response is accepted by the dispatcher + if err := <-resOp.fail; err != nil { + return nil + } + // Deliver the filled out response and wait until it's handled. This + // path is a bit funky as Go's select has no order, so if a response + // arrives to an already cancelled request, there's a 50-50% changes + // of picking on channel or the other. To avoid such cases delivering + // the packet upstream, check for cancellation first and only after + // block on delivery. + select { + case <-res.Req.cancel: + return nil // Request cancelled, silently discard response + default: + // Request not yet cancelled, attempt to deliver it, but do watch + // for fresh cancellations too + select { + case res.Req.sink <- res: + return <-res.Done // Response delivered, return any errors + case <-res.Req.cancel: + return nil // Request cancelled, silently discard response + } + } + + case <-p.term: + return errDisconnected + } +} + +// dispatcher is a loop that accepts requests from higher layer packages, pushes +// it to the network and tracks and dispatches the responses back to the original +// requester. +func (p *Peer) dispatcher() { + pending := make(map[uint64]*Request) + + for { + select { + case reqOp := <-p.reqDispatch: + req := reqOp.req + req.Sent = time.Now() + + requestTracker.Track(p.id, p.version, req.code, req.want, req.id) + err := p2p.Send(p.rw, req.code, req.data) + reqOp.fail <- err + + if err == nil { + pending[req.id] = req + } + + case cancelOp := <-p.reqCancel: + // Retrieve the pendign request to cancel and short circuit if it + // has already been serviced and is not available anymore + req := pending[cancelOp.id] + if req == nil { + cancelOp.fail <- nil + continue + } + // Stop tracking the request + delete(pending, cancelOp.id) + cancelOp.fail <- nil + + case resOp := <-p.resDispatch: + res := resOp.res + res.Req = pending[res.id] + + // Independent if the request exists or not, track this packet + requestTracker.Fulfil(p.id, p.version, res.code, res.id) + + switch { + case res.Req == nil: + // Response arrived with an untracked ID. Since even cancelled + // requests are tracked until fulfilment, a dangling repsponse + // means the remote peer implements the protocol badly. + resOp.fail <- errDanglingResponse + + case res.Req.want != res.code: + // Response arrived, but it's a different packet type than the + // one expected by the requester. Either the local code is bad, + // or the remote peer send junk. In neither cases can we handle + // the packet. + resOp.fail <- fmt.Errorf("%w: have %d, want %d", errMismatchingResponseType, res.code, res.Req.want) + + default: + // All dispatcher checks passed and the response was initialized + // with the matching request. Signal to the delivery routine that + // it can wait for a handler response and dispatch the data. + res.Time = res.recv.Sub(res.Req.Sent) + resOp.fail <- nil + + // Stop tracking the request, the response dispatcher will deliver + delete(pending, res.id) + } + + case <-p.term: + return + } + } +} diff --git a/eth/protocols/eth/handlers.go b/eth/protocols/eth/handlers.go index e54838cbc..aa5245679 100644 --- a/eth/protocols/eth/handlers.go +++ b/eth/protocols/eth/handlers.go @@ -21,6 +21,7 @@ import ( "fmt" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/rlp" @@ -34,11 +35,13 @@ func handleGetBlockHeaders66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(&query); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - response := answerGetBlockHeadersQuery(backend, query.GetBlockHeadersPacket, peer) + response := ServiceGetBlockHeadersQuery(backend.Chain(), query.GetBlockHeadersPacket, peer) return peer.ReplyBlockHeaders(query.RequestId, response) } -func answerGetBlockHeadersQuery(backend Backend, query *GetBlockHeadersPacket, peer *Peer) []*types.Header { +// ServiceGetBlockHeadersQuery assembles the response to a header query. It is +// exposed to allow external packages to test protocol behavior. +func ServiceGetBlockHeadersQuery(chain *core.BlockChain, query *GetBlockHeadersPacket, peer *Peer) []*types.Header { hashMode := query.Origin.Hash != (common.Hash{}) first := true maxNonCanonical := uint64(100) @@ -58,15 +61,15 @@ func answerGetBlockHeadersQuery(backend Backend, query *GetBlockHeadersPacket, p if hashMode { if first { first = false - origin = backend.Chain().GetHeaderByHash(query.Origin.Hash) + origin = chain.GetHeaderByHash(query.Origin.Hash) if origin != nil { query.Origin.Number = origin.Number.Uint64() } } else { - origin = backend.Chain().GetHeader(query.Origin.Hash, query.Origin.Number) + origin = chain.GetHeader(query.Origin.Hash, query.Origin.Number) } } else { - origin = backend.Chain().GetHeaderByNumber(query.Origin.Number) + origin = chain.GetHeaderByNumber(query.Origin.Number) } if origin == nil { break @@ -82,7 +85,7 @@ func answerGetBlockHeadersQuery(backend Backend, query *GetBlockHeadersPacket, p if ancestor == 0 { unknown = true } else { - query.Origin.Hash, query.Origin.Number = backend.Chain().GetAncestor(query.Origin.Hash, query.Origin.Number, ancestor, &maxNonCanonical) + query.Origin.Hash, query.Origin.Number = chain.GetAncestor(query.Origin.Hash, query.Origin.Number, ancestor, &maxNonCanonical) unknown = (query.Origin.Hash == common.Hash{}) } case hashMode && !query.Reverse: @@ -96,9 +99,9 @@ func answerGetBlockHeadersQuery(backend Backend, query *GetBlockHeadersPacket, p peer.Log().Warn("GetBlockHeaders skip overflow attack", "current", current, "skip", query.Skip, "next", next, "attacker", infos) unknown = true } else { - if header := backend.Chain().GetHeaderByNumber(next); header != nil { + if header := chain.GetHeaderByNumber(next); header != nil { nextHash := header.Hash() - expOldHash, _ := backend.Chain().GetAncestor(nextHash, next, query.Skip+1, &maxNonCanonical) + expOldHash, _ := chain.GetAncestor(nextHash, next, query.Skip+1, &maxNonCanonical) if expOldHash == query.Origin.Hash { query.Origin.Hash, query.Origin.Number = nextHash, next } else { @@ -130,11 +133,13 @@ func handleGetBlockBodies66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(&query); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - response := answerGetBlockBodiesQuery(backend, query.GetBlockBodiesPacket, peer) + response := ServiceGetBlockBodiesQuery(backend.Chain(), query.GetBlockBodiesPacket) return peer.ReplyBlockBodiesRLP(query.RequestId, response) } -func answerGetBlockBodiesQuery(backend Backend, query GetBlockBodiesPacket, peer *Peer) []rlp.RawValue { +// ServiceGetBlockBodiesQuery assembles the response to a body query. It is +// exposed to allow external packages to test protocol behavior. +func ServiceGetBlockBodiesQuery(chain *core.BlockChain, query GetBlockBodiesPacket) []rlp.RawValue { // Gather blocks until the fetch or network limits is reached var ( bytes int @@ -145,7 +150,7 @@ func answerGetBlockBodiesQuery(backend Backend, query GetBlockBodiesPacket, peer lookups >= 2*maxBodiesServe { break } - if data := backend.Chain().GetBodyRLP(hash); len(data) != 0 { + if data := chain.GetBodyRLP(hash); len(data) != 0 { bodies = append(bodies, data) bytes += len(data) } @@ -159,11 +164,13 @@ func handleGetNodeData66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(&query); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - response := answerGetNodeDataQuery(backend, query.GetNodeDataPacket, peer) + response := ServiceGetNodeDataQuery(backend.Chain(), backend.StateBloom(), query.GetNodeDataPacket) return peer.ReplyNodeData(query.RequestId, response) } -func answerGetNodeDataQuery(backend Backend, query GetNodeDataPacket, peer *Peer) [][]byte { +// ServiceGetNodeDataQuery assembles the response to a node data query. It is +// exposed to allow external packages to test protocol behavior. +func ServiceGetNodeDataQuery(chain *core.BlockChain, bloom *trie.SyncBloom, query GetNodeDataPacket) [][]byte { // Gather state data until the fetch or network limits is reached var ( bytes int @@ -175,14 +182,14 @@ func answerGetNodeDataQuery(backend Backend, query GetNodeDataPacket, peer *Peer break } // Retrieve the requested state entry - if bloom := backend.StateBloom(); bloom != nil && !bloom.Contains(hash[:]) { + if bloom != nil && !bloom.Contains(hash[:]) { // Only lookup the trie node if there's chance that we actually have it continue } - entry, err := backend.Chain().TrieNode(hash) + entry, err := chain.TrieNode(hash) if len(entry) == 0 || err != nil { // Read the contract code with prefix only to save unnecessary lookups. - entry, err = backend.Chain().ContractCodeWithPrefix(hash) + entry, err = chain.ContractCodeWithPrefix(hash) } if err == nil && len(entry) > 0 { nodes = append(nodes, entry) @@ -198,11 +205,13 @@ func handleGetReceipts66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(&query); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - response := answerGetReceiptsQuery(backend, query.GetReceiptsPacket, peer) + response := ServiceGetReceiptsQuery(backend.Chain(), query.GetReceiptsPacket) return peer.ReplyReceiptsRLP(query.RequestId, response) } -func answerGetReceiptsQuery(backend Backend, query GetReceiptsPacket, peer *Peer) []rlp.RawValue { +// ServiceGetReceiptsQuery assembles the response to a receipt query. It is +// exposed to allow external packages to test protocol behavior. +func ServiceGetReceiptsQuery(chain *core.BlockChain, query GetReceiptsPacket) []rlp.RawValue { // Gather state data until the fetch or network limits is reached var ( bytes int @@ -214,9 +223,9 @@ func answerGetReceiptsQuery(backend Backend, query GetReceiptsPacket, peer *Peer break } // Retrieve the requested block's receipts - results := backend.Chain().GetReceiptsByHash(hash) + results := chain.GetReceiptsByHash(hash) if results == nil { - if header := backend.Chain().GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash { + if header := chain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash { continue } } @@ -277,9 +286,11 @@ func handleBlockHeaders66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(res); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - requestTracker.Fulfil(peer.id, peer.version, BlockHeadersMsg, res.RequestId) - - return backend.Handle(peer, &res.BlockHeadersPacket) + return peer.dispatchResponse(&Response{ + id: res.RequestId, + code: BlockHeadersMsg, + Res: &res.BlockHeadersPacket, + }) } func handleBlockBodies66(backend Backend, msg Decoder, peer *Peer) error { @@ -288,9 +299,11 @@ func handleBlockBodies66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(res); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - requestTracker.Fulfil(peer.id, peer.version, BlockBodiesMsg, res.RequestId) - - return backend.Handle(peer, &res.BlockBodiesPacket) + return peer.dispatchResponse(&Response{ + id: res.RequestId, + code: BlockBodiesMsg, + Res: &res.BlockBodiesPacket, + }) } func handleNodeData66(backend Backend, msg Decoder, peer *Peer) error { @@ -299,9 +312,11 @@ func handleNodeData66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(res); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - requestTracker.Fulfil(peer.id, peer.version, NodeDataMsg, res.RequestId) - - return backend.Handle(peer, &res.NodeDataPacket) + return peer.dispatchResponse(&Response{ + id: res.RequestId, + code: NodeDataMsg, + Res: &res.NodeDataPacket, + }) } func handleReceipts66(backend Backend, msg Decoder, peer *Peer) error { @@ -310,9 +325,11 @@ func handleReceipts66(backend Backend, msg Decoder, peer *Peer) error { if err := msg.Decode(res); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - requestTracker.Fulfil(peer.id, peer.version, ReceiptsMsg, res.RequestId) - - return backend.Handle(peer, &res.ReceiptsPacket) + return peer.dispatchResponse(&Response{ + id: res.RequestId, + code: ReceiptsMsg, + Res: &res.ReceiptsPacket, + }) } func handleNewPooledTransactionHashes(backend Backend, msg Decoder, peer *Peer) error { diff --git a/eth/protocols/eth/peer.go b/eth/protocols/eth/peer.go index 1b4cfeb3d..b61dc25af 100644 --- a/eth/protocols/eth/peer.go +++ b/eth/protocols/eth/peer.go @@ -84,6 +84,10 @@ type Peer struct { txBroadcast chan []common.Hash // Channel used to queue transaction propagation requests txAnnounce chan []common.Hash // Channel used to queue transaction announcement requests + reqDispatch chan *request // Dispatch channel to send requests and track then until fulfilment + reqCancel chan *cancel // Dispatch channel to cancel pending requests and untrack them + resDispatch chan *response // Dispatch channel to fulfil pending requests and untrack them + term chan struct{} // Termination channel to stop the broadcasters lock sync.RWMutex // Mutex protecting the internal fields } @@ -102,6 +106,9 @@ func NewPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter, txpool TxPool) *Pe queuedBlockAnns: make(chan *types.Block, maxQueuedBlockAnns), txBroadcast: make(chan []common.Hash), txAnnounce: make(chan []common.Hash), + reqDispatch: make(chan *request), + reqCancel: make(chan *cancel), + resDispatch: make(chan *response), txpool: txpool, term: make(chan struct{}), } @@ -109,6 +116,7 @@ func NewPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter, txpool TxPool) *Pe go peer.broadcastBlocks() go peer.broadcastTransactions() go peer.announceTransactions() + go peer.dispatcher() return peer } @@ -323,94 +331,148 @@ func (p *Peer) ReplyReceiptsRLP(id uint64, receipts []rlp.RawValue) error { // RequestOneHeader is a wrapper around the header query functions to fetch a // single header. It is used solely by the fetcher. -func (p *Peer) RequestOneHeader(hash common.Hash) error { +func (p *Peer) RequestOneHeader(hash common.Hash, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching single header", "hash", hash) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetBlockHeadersMsg, BlockHeadersMsg, id) - return p2p.Send(p.rw, GetBlockHeadersMsg, &GetBlockHeadersPacket66{ - RequestId: id, - GetBlockHeadersPacket: &GetBlockHeadersPacket{ - Origin: HashOrNumber{Hash: hash}, - Amount: uint64(1), - Skip: uint64(0), - Reverse: false, + req := &Request{ + id: id, + sink: sink, + code: GetBlockHeadersMsg, + want: BlockHeadersMsg, + data: &GetBlockHeadersPacket66{ + RequestId: id, + GetBlockHeadersPacket: &GetBlockHeadersPacket{ + Origin: HashOrNumber{Hash: hash}, + Amount: uint64(1), + Skip: uint64(0), + Reverse: false, + }, }, - }) + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestHeadersByHash fetches a batch of blocks' headers corresponding to the // specified header query, based on the hash of an origin block. -func (p *Peer) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool) error { +func (p *Peer) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching batch of headers", "count", amount, "fromhash", origin, "skip", skip, "reverse", reverse) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetBlockHeadersMsg, BlockHeadersMsg, id) - return p2p.Send(p.rw, GetBlockHeadersMsg, &GetBlockHeadersPacket66{ - RequestId: id, - GetBlockHeadersPacket: &GetBlockHeadersPacket{ - Origin: HashOrNumber{Hash: origin}, - Amount: uint64(amount), - Skip: uint64(skip), - Reverse: reverse, + req := &Request{ + id: id, + sink: sink, + code: GetBlockHeadersMsg, + want: BlockHeadersMsg, + data: &GetBlockHeadersPacket66{ + RequestId: id, + GetBlockHeadersPacket: &GetBlockHeadersPacket{ + Origin: HashOrNumber{Hash: origin}, + Amount: uint64(amount), + Skip: uint64(skip), + Reverse: reverse, + }, }, - }) + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestHeadersByNumber fetches a batch of blocks' headers corresponding to the // specified header query, based on the number of an origin block. -func (p *Peer) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool) error { +func (p *Peer) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching batch of headers", "count", amount, "fromnum", origin, "skip", skip, "reverse", reverse) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetBlockHeadersMsg, BlockHeadersMsg, id) - return p2p.Send(p.rw, GetBlockHeadersMsg, &GetBlockHeadersPacket66{ - RequestId: id, - GetBlockHeadersPacket: &GetBlockHeadersPacket{ - Origin: HashOrNumber{Number: origin}, - Amount: uint64(amount), - Skip: uint64(skip), - Reverse: reverse, + req := &Request{ + id: id, + sink: sink, + code: GetBlockHeadersMsg, + want: BlockHeadersMsg, + data: &GetBlockHeadersPacket66{ + RequestId: id, + GetBlockHeadersPacket: &GetBlockHeadersPacket{ + Origin: HashOrNumber{Number: origin}, + Amount: uint64(amount), + Skip: uint64(skip), + Reverse: reverse, + }, }, - }) + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestBodies fetches a batch of blocks' bodies corresponding to the hashes // specified. -func (p *Peer) RequestBodies(hashes []common.Hash) error { +func (p *Peer) RequestBodies(hashes []common.Hash, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching batch of block bodies", "count", len(hashes)) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetBlockBodiesMsg, BlockBodiesMsg, id) - return p2p.Send(p.rw, GetBlockBodiesMsg, &GetBlockBodiesPacket66{ - RequestId: id, - GetBlockBodiesPacket: hashes, - }) + req := &Request{ + id: id, + sink: sink, + code: GetBlockBodiesMsg, + want: BlockBodiesMsg, + data: &GetBlockBodiesPacket66{ + RequestId: id, + GetBlockBodiesPacket: hashes, + }, + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestNodeData fetches a batch of arbitrary data from a node's known state // data, corresponding to the specified hashes. -func (p *Peer) RequestNodeData(hashes []common.Hash) error { +func (p *Peer) RequestNodeData(hashes []common.Hash, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching batch of state data", "count", len(hashes)) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetNodeDataMsg, NodeDataMsg, id) - return p2p.Send(p.rw, GetNodeDataMsg, &GetNodeDataPacket66{ - RequestId: id, - GetNodeDataPacket: hashes, - }) + req := &Request{ + id: id, + sink: sink, + code: GetNodeDataMsg, + want: NodeDataMsg, + data: &GetNodeDataPacket66{ + RequestId: id, + GetNodeDataPacket: hashes, + }, + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestReceipts fetches a batch of transaction receipts from a remote node. -func (p *Peer) RequestReceipts(hashes []common.Hash) error { +func (p *Peer) RequestReceipts(hashes []common.Hash, sink chan *Response) (*Request, error) { p.Log().Debug("Fetching batch of receipts", "count", len(hashes)) id := rand.Uint64() - requestTracker.Track(p.id, p.version, GetReceiptsMsg, ReceiptsMsg, id) - return p2p.Send(p.rw, GetReceiptsMsg, &GetReceiptsPacket66{ - RequestId: id, - GetReceiptsPacket: hashes, - }) + req := &Request{ + id: id, + sink: sink, + code: GetReceiptsMsg, + want: ReceiptsMsg, + data: &GetReceiptsPacket66{ + RequestId: id, + GetReceiptsPacket: hashes, + }, + } + if err := p.dispatchRequest(req); err != nil { + return nil, err + } + return req, nil } // RequestTxs fetches a batch of transactions from a remote node. diff --git a/eth/protocols/snap/handler.go b/eth/protocols/snap/handler.go index c62f9cfca..178230995 100644 --- a/eth/protocols/snap/handler.go +++ b/eth/protocols/snap/handler.go @@ -99,8 +99,8 @@ func MakeProtocols(backend Backend, dnsdisc enode.Iterator) []p2p.Protocol { Version: version, Length: protocolLengths[version], Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error { - return backend.RunPeer(newPeer(version, p, rw), func(peer *Peer) error { - return handle(backend, peer) + return backend.RunPeer(NewPeer(version, p, rw), func(peer *Peer) error { + return Handle(backend, peer) }) }, NodeInfo: func() interface{} { @@ -116,9 +116,9 @@ func MakeProtocols(backend Backend, dnsdisc enode.Iterator) []p2p.Protocol { return protocols } -// handle is the callback invoked to manage the life cycle of a `snap` peer. +// Handle is the callback invoked to manage the life cycle of a `snap` peer. // When this function terminates, the peer is disconnected. -func handle(backend Backend, peer *Peer) error { +func Handle(backend Backend, peer *Peer) error { for { if err := handleMessage(backend, peer); err != nil { peer.Log().Debug("Message handling failed in `snap`", "err", err) @@ -161,60 +161,10 @@ func handleMessage(backend Backend, peer *Peer) error { if err := msg.Decode(&req); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - if req.Bytes > softResponseLimit { - req.Bytes = softResponseLimit - } - // Retrieve the requested state and bail out if non existent - tr, err := trie.New(req.Root, backend.Chain().StateCache().TrieDB()) - if err != nil { - return p2p.Send(peer.rw, AccountRangeMsg, &AccountRangePacket{ID: req.ID}) - } - it, err := backend.Chain().Snapshots().AccountIterator(req.Root, req.Origin) - if err != nil { - return p2p.Send(peer.rw, AccountRangeMsg, &AccountRangePacket{ID: req.ID}) - } - // Iterate over the requested range and pile accounts up - var ( - accounts []*AccountData - size uint64 - last common.Hash - ) - for it.Next() && size < req.Bytes { - hash, account := it.Hash(), common.CopyBytes(it.Account()) + // Service the request, potentially returning nothing in case of errors + accounts, proofs := ServiceGetAccountRangeQuery(backend.Chain(), &req) - // Track the returned interval for the Merkle proofs - last = hash - - // Assemble the reply item - size += uint64(common.HashLength + len(account)) - accounts = append(accounts, &AccountData{ - Hash: hash, - Body: account, - }) - // If we've exceeded the request threshold, abort - if bytes.Compare(hash[:], req.Limit[:]) >= 0 { - break - } - } - it.Release() - - // Generate the Merkle proofs for the first and last account - proof := light.NewNodeSet() - if err := tr.Prove(req.Origin[:], 0, proof); err != nil { - log.Warn("Failed to prove account range", "origin", req.Origin, "err", err) - return p2p.Send(peer.rw, AccountRangeMsg, &AccountRangePacket{ID: req.ID}) - } - if last != (common.Hash{}) { - if err := tr.Prove(last[:], 0, proof); err != nil { - log.Warn("Failed to prove account range", "last", last, "err", err) - return p2p.Send(peer.rw, AccountRangeMsg, &AccountRangePacket{ID: req.ID}) - } - } - var proofs [][]byte - for _, blob := range proof.NodeList() { - proofs = append(proofs, blob) - } - // Send back anything accumulated + // Send back anything accumulated (or empty in case of errors) return p2p.Send(peer.rw, AccountRangeMsg, &AccountRangePacket{ ID: req.ID, Accounts: accounts, @@ -243,111 +193,10 @@ func handleMessage(backend Backend, peer *Peer) error { if err := msg.Decode(&req); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - if req.Bytes > softResponseLimit { - req.Bytes = softResponseLimit - } - // TODO(karalabe): Do we want to enforce > 0 accounts and 1 account if origin is set? - // TODO(karalabe): - Logging locally is not ideal as remote faulst annoy the local user - // TODO(karalabe): - Dropping the remote peer is less flexible wrt client bugs (slow is better than non-functional) + // Service the request, potentially returning nothing in case of errors + slots, proofs := ServiceGetStorageRangesQuery(backend.Chain(), &req) - // Calculate the hard limit at which to abort, even if mid storage trie - hardLimit := uint64(float64(req.Bytes) * (1 + stateLookupSlack)) - - // Retrieve storage ranges until the packet limit is reached - var ( - slots [][]*StorageData - proofs [][]byte - size uint64 - ) - for _, account := range req.Accounts { - // If we've exceeded the requested data limit, abort without opening - // a new storage range (that we'd need to prove due to exceeded size) - if size >= req.Bytes { - break - } - // The first account might start from a different origin and end sooner - var origin common.Hash - if len(req.Origin) > 0 { - origin, req.Origin = common.BytesToHash(req.Origin), nil - } - var limit = common.HexToHash("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff") - if len(req.Limit) > 0 { - limit, req.Limit = common.BytesToHash(req.Limit), nil - } - // Retrieve the requested state and bail out if non existent - it, err := backend.Chain().Snapshots().StorageIterator(req.Root, account, origin) - if err != nil { - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - // Iterate over the requested range and pile slots up - var ( - storage []*StorageData - last common.Hash - abort bool - ) - for it.Next() { - if size >= hardLimit { - abort = true - break - } - hash, slot := it.Hash(), common.CopyBytes(it.Slot()) - - // Track the returned interval for the Merkle proofs - last = hash - - // Assemble the reply item - size += uint64(common.HashLength + len(slot)) - storage = append(storage, &StorageData{ - Hash: hash, - Body: slot, - }) - // If we've exceeded the request threshold, abort - if bytes.Compare(hash[:], limit[:]) >= 0 { - break - } - } - slots = append(slots, storage) - it.Release() - - // Generate the Merkle proofs for the first and last storage slot, but - // only if the response was capped. If the entire storage trie included - // in the response, no need for any proofs. - if origin != (common.Hash{}) || abort { - // Request started at a non-zero hash or was capped prematurely, add - // the endpoint Merkle proofs - accTrie, err := trie.New(req.Root, backend.Chain().StateCache().TrieDB()) - if err != nil { - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - var acc types.StateAccount - if err := rlp.DecodeBytes(accTrie.Get(account[:]), &acc); err != nil { - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - stTrie, err := trie.New(acc.Root, backend.Chain().StateCache().TrieDB()) - if err != nil { - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - proof := light.NewNodeSet() - if err := stTrie.Prove(origin[:], 0, proof); err != nil { - log.Warn("Failed to prove storage range", "origin", req.Origin, "err", err) - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - if last != (common.Hash{}) { - if err := stTrie.Prove(last[:], 0, proof); err != nil { - log.Warn("Failed to prove storage range", "last", last, "err", err) - return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ID: req.ID}) - } - } - for _, blob := range proof.NodeList() { - proofs = append(proofs, blob) - } - // Proof terminates the reply as proofs are only added if a node - // refuses to serve more data (exception when a contract fetch is - // finishing, but that's that). - break - } - } - // Send back anything accumulated + // Send back anything accumulated (or empty in case of errors) return p2p.Send(peer.rw, StorageRangesMsg, &StorageRangesPacket{ ID: req.ID, Slots: slots, @@ -378,31 +227,10 @@ func handleMessage(backend Backend, peer *Peer) error { if err := msg.Decode(&req); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - if req.Bytes > softResponseLimit { - req.Bytes = softResponseLimit - } - if len(req.Hashes) > maxCodeLookups { - req.Hashes = req.Hashes[:maxCodeLookups] - } - // Retrieve bytecodes until the packet size limit is reached - var ( - codes [][]byte - bytes uint64 - ) - for _, hash := range req.Hashes { - if hash == emptyCode { - // Peers should not request the empty code, but if they do, at - // least sent them back a correct response without db lookups - codes = append(codes, []byte{}) - } else if blob, err := backend.Chain().ContractCode(hash); err == nil { - codes = append(codes, blob) - bytes += uint64(len(blob)) - } - if bytes > req.Bytes { - break - } - } - // Send back anything accumulated + // Service the request, potentially returning nothing in case of errors + codes := ServiceGetByteCodesQuery(backend.Chain(), &req) + + // Send back anything accumulated (or empty in case of errors) return p2p.Send(peer.rw, ByteCodesMsg, &ByteCodesPacket{ ID: req.ID, Codes: codes, @@ -424,80 +252,12 @@ func handleMessage(backend Backend, peer *Peer) error { if err := msg.Decode(&req); err != nil { return fmt.Errorf("%w: message %v: %v", errDecode, msg, err) } - if req.Bytes > softResponseLimit { - req.Bytes = softResponseLimit - } - // Make sure we have the state associated with the request - triedb := backend.Chain().StateCache().TrieDB() - - accTrie, err := trie.NewSecure(req.Root, triedb) + // Service the request, potentially returning nothing in case of errors + nodes, err := ServiceGetTrieNodesQuery(backend.Chain(), &req, start) if err != nil { - // We don't have the requested state available, bail out - return p2p.Send(peer.rw, TrieNodesMsg, &TrieNodesPacket{ID: req.ID}) + return err } - snap := backend.Chain().Snapshots().Snapshot(req.Root) - if snap == nil { - // We don't have the requested state snapshotted yet, bail out. - // In reality we could still serve using the account and storage - // tries only, but let's protect the node a bit while it's doing - // snapshot generation. - return p2p.Send(peer.rw, TrieNodesMsg, &TrieNodesPacket{ID: req.ID}) - } - // Retrieve trie nodes until the packet size limit is reached - var ( - nodes [][]byte - bytes uint64 - loads int // Trie hash expansions to cound database reads - ) - for _, pathset := range req.Paths { - switch len(pathset) { - case 0: - // Ensure we penalize invalid requests - return fmt.Errorf("%w: zero-item pathset requested", errBadRequest) - - case 1: - // If we're only retrieving an account trie node, fetch it directly - blob, resolved, err := accTrie.TryGetNode(pathset[0]) - loads += resolved // always account database reads, even for failures - if err != nil { - break - } - nodes = append(nodes, blob) - bytes += uint64(len(blob)) - - default: - // Storage slots requested, open the storage trie and retrieve from there - account, err := snap.Account(common.BytesToHash(pathset[0])) - loads++ // always account database reads, even for failures - if err != nil || account == nil { - break - } - stTrie, err := trie.NewSecure(common.BytesToHash(account.Root), triedb) - loads++ // always account database reads, even for failures - if err != nil { - break - } - for _, path := range pathset[1:] { - blob, resolved, err := stTrie.TryGetNode(path) - loads += resolved // always account database reads, even for failures - if err != nil { - break - } - nodes = append(nodes, blob) - bytes += uint64(len(blob)) - - // Sanity check limits to avoid DoS on the store trie loads - if bytes > req.Bytes || loads > maxTrieNodeLookups || time.Since(start) > maxTrieNodeTimeSpent { - break - } - } - } - // Abort request processing if we've exceeded our limits - if bytes > req.Bytes || loads > maxTrieNodeLookups || time.Since(start) > maxTrieNodeTimeSpent { - break - } - } - // Send back anything accumulated + // Send back anything accumulated (or empty in case of errors) return p2p.Send(peer.rw, TrieNodesMsg, &TrieNodesPacket{ ID: req.ID, Nodes: nodes, @@ -518,6 +278,282 @@ func handleMessage(backend Backend, peer *Peer) error { } } +// ServiceGetAccountRangeQuery assembles the response to an account range query. +// It is exposed to allow external packages to test protocol behavior. +func ServiceGetAccountRangeQuery(chain *core.BlockChain, req *GetAccountRangePacket) ([]*AccountData, [][]byte) { + if req.Bytes > softResponseLimit { + req.Bytes = softResponseLimit + } + // Retrieve the requested state and bail out if non existent + tr, err := trie.New(req.Root, chain.StateCache().TrieDB()) + if err != nil { + return nil, nil + } + it, err := chain.Snapshots().AccountIterator(req.Root, req.Origin) + if err != nil { + return nil, nil + } + // Iterate over the requested range and pile accounts up + var ( + accounts []*AccountData + size uint64 + last common.Hash + ) + for it.Next() && size < req.Bytes { + hash, account := it.Hash(), common.CopyBytes(it.Account()) + + // Track the returned interval for the Merkle proofs + last = hash + + // Assemble the reply item + size += uint64(common.HashLength + len(account)) + accounts = append(accounts, &AccountData{ + Hash: hash, + Body: account, + }) + // If we've exceeded the request threshold, abort + if bytes.Compare(hash[:], req.Limit[:]) >= 0 { + break + } + } + it.Release() + + // Generate the Merkle proofs for the first and last account + proof := light.NewNodeSet() + if err := tr.Prove(req.Origin[:], 0, proof); err != nil { + log.Warn("Failed to prove account range", "origin", req.Origin, "err", err) + return nil, nil + } + if last != (common.Hash{}) { + if err := tr.Prove(last[:], 0, proof); err != nil { + log.Warn("Failed to prove account range", "last", last, "err", err) + return nil, nil + } + } + var proofs [][]byte + for _, blob := range proof.NodeList() { + proofs = append(proofs, blob) + } + return accounts, proofs +} + +func ServiceGetStorageRangesQuery(chain *core.BlockChain, req *GetStorageRangesPacket) ([][]*StorageData, [][]byte) { + if req.Bytes > softResponseLimit { + req.Bytes = softResponseLimit + } + // TODO(karalabe): Do we want to enforce > 0 accounts and 1 account if origin is set? + // TODO(karalabe): - Logging locally is not ideal as remote faulst annoy the local user + // TODO(karalabe): - Dropping the remote peer is less flexible wrt client bugs (slow is better than non-functional) + + // Calculate the hard limit at which to abort, even if mid storage trie + hardLimit := uint64(float64(req.Bytes) * (1 + stateLookupSlack)) + + // Retrieve storage ranges until the packet limit is reached + var ( + slots [][]*StorageData + proofs [][]byte + size uint64 + ) + for _, account := range req.Accounts { + // If we've exceeded the requested data limit, abort without opening + // a new storage range (that we'd need to prove due to exceeded size) + if size >= req.Bytes { + break + } + // The first account might start from a different origin and end sooner + var origin common.Hash + if len(req.Origin) > 0 { + origin, req.Origin = common.BytesToHash(req.Origin), nil + } + var limit = common.HexToHash("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff") + if len(req.Limit) > 0 { + limit, req.Limit = common.BytesToHash(req.Limit), nil + } + // Retrieve the requested state and bail out if non existent + it, err := chain.Snapshots().StorageIterator(req.Root, account, origin) + if err != nil { + return nil, nil + } + // Iterate over the requested range and pile slots up + var ( + storage []*StorageData + last common.Hash + abort bool + ) + for it.Next() { + if size >= hardLimit { + abort = true + break + } + hash, slot := it.Hash(), common.CopyBytes(it.Slot()) + + // Track the returned interval for the Merkle proofs + last = hash + + // Assemble the reply item + size += uint64(common.HashLength + len(slot)) + storage = append(storage, &StorageData{ + Hash: hash, + Body: slot, + }) + // If we've exceeded the request threshold, abort + if bytes.Compare(hash[:], limit[:]) >= 0 { + break + } + } + slots = append(slots, storage) + it.Release() + + // Generate the Merkle proofs for the first and last storage slot, but + // only if the response was capped. If the entire storage trie included + // in the response, no need for any proofs. + if origin != (common.Hash{}) || abort { + // Request started at a non-zero hash or was capped prematurely, add + // the endpoint Merkle proofs + accTrie, err := trie.New(req.Root, chain.StateCache().TrieDB()) + if err != nil { + return nil, nil + } + var acc types.StateAccount + if err := rlp.DecodeBytes(accTrie.Get(account[:]), &acc); err != nil { + return nil, nil + } + stTrie, err := trie.New(acc.Root, chain.StateCache().TrieDB()) + if err != nil { + return nil, nil + } + proof := light.NewNodeSet() + if err := stTrie.Prove(origin[:], 0, proof); err != nil { + log.Warn("Failed to prove storage range", "origin", req.Origin, "err", err) + return nil, nil + } + if last != (common.Hash{}) { + if err := stTrie.Prove(last[:], 0, proof); err != nil { + log.Warn("Failed to prove storage range", "last", last, "err", err) + return nil, nil + } + } + for _, blob := range proof.NodeList() { + proofs = append(proofs, blob) + } + // Proof terminates the reply as proofs are only added if a node + // refuses to serve more data (exception when a contract fetch is + // finishing, but that's that). + break + } + } + return slots, proofs +} + +// ServiceGetByteCodesQuery assembles the response to a byte codes query. +// It is exposed to allow external packages to test protocol behavior. +func ServiceGetByteCodesQuery(chain *core.BlockChain, req *GetByteCodesPacket) [][]byte { + if req.Bytes > softResponseLimit { + req.Bytes = softResponseLimit + } + if len(req.Hashes) > maxCodeLookups { + req.Hashes = req.Hashes[:maxCodeLookups] + } + // Retrieve bytecodes until the packet size limit is reached + var ( + codes [][]byte + bytes uint64 + ) + for _, hash := range req.Hashes { + if hash == emptyCode { + // Peers should not request the empty code, but if they do, at + // least sent them back a correct response without db lookups + codes = append(codes, []byte{}) + } else if blob, err := chain.ContractCode(hash); err == nil { + codes = append(codes, blob) + bytes += uint64(len(blob)) + } + if bytes > req.Bytes { + break + } + } + return codes +} + +// ServiceGetTrieNodesQuery assembles the response to a trie nodes query. +// It is exposed to allow external packages to test protocol behavior. +func ServiceGetTrieNodesQuery(chain *core.BlockChain, req *GetTrieNodesPacket, start time.Time) ([][]byte, error) { + if req.Bytes > softResponseLimit { + req.Bytes = softResponseLimit + } + // Make sure we have the state associated with the request + triedb := chain.StateCache().TrieDB() + + accTrie, err := trie.NewSecure(req.Root, triedb) + if err != nil { + // We don't have the requested state available, bail out + return nil, nil + } + snap := chain.Snapshots().Snapshot(req.Root) + if snap == nil { + // We don't have the requested state snapshotted yet, bail out. + // In reality we could still serve using the account and storage + // tries only, but let's protect the node a bit while it's doing + // snapshot generation. + return nil, nil + } + // Retrieve trie nodes until the packet size limit is reached + var ( + nodes [][]byte + bytes uint64 + loads int // Trie hash expansions to cound database reads + ) + for _, pathset := range req.Paths { + switch len(pathset) { + case 0: + // Ensure we penalize invalid requests + return nil, fmt.Errorf("%w: zero-item pathset requested", errBadRequest) + + case 1: + // If we're only retrieving an account trie node, fetch it directly + blob, resolved, err := accTrie.TryGetNode(pathset[0]) + loads += resolved // always account database reads, even for failures + if err != nil { + break + } + nodes = append(nodes, blob) + bytes += uint64(len(blob)) + + default: + // Storage slots requested, open the storage trie and retrieve from there + account, err := snap.Account(common.BytesToHash(pathset[0])) + loads++ // always account database reads, even for failures + if err != nil || account == nil { + break + } + stTrie, err := trie.NewSecure(common.BytesToHash(account.Root), triedb) + loads++ // always account database reads, even for failures + if err != nil { + break + } + for _, path := range pathset[1:] { + blob, resolved, err := stTrie.TryGetNode(path) + loads += resolved // always account database reads, even for failures + if err != nil { + break + } + nodes = append(nodes, blob) + bytes += uint64(len(blob)) + + // Sanity check limits to avoid DoS on the store trie loads + if bytes > req.Bytes || loads > maxTrieNodeLookups || time.Since(start) > maxTrieNodeTimeSpent { + break + } + } + } + // Abort request processing if we've exceeded our limits + if bytes > req.Bytes || loads > maxTrieNodeLookups || time.Since(start) > maxTrieNodeTimeSpent { + break + } + } + return nodes, nil +} + // NodeInfo represents a short summary of the `snap` sub-protocol metadata // known about the host peer. type NodeInfo struct{} diff --git a/eth/protocols/snap/peer.go b/eth/protocols/snap/peer.go index cf0ce65bd..fc721c9f9 100644 --- a/eth/protocols/snap/peer.go +++ b/eth/protocols/snap/peer.go @@ -33,9 +33,9 @@ type Peer struct { logger log.Logger // Contextual logger with the peer id injected } -// newPeer create a wrapper for a network connection and negotiated protocol +// NewPeer create a wrapper for a network connection and negotiated protocol // version. -func newPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) *Peer { +func NewPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) *Peer { id := p.ID().String() return &Peer{ id: id, diff --git a/eth/protocols/snap/protocol.go b/eth/protocols/snap/protocol.go index 5528e9212..60a254f39 100644 --- a/eth/protocols/snap/protocol.go +++ b/eth/protocols/snap/protocol.go @@ -27,7 +27,7 @@ import ( // Constants to match up protocol versions and messages const ( - snap1 = 1 + SNAP1 = 1 ) // ProtocolName is the official short name of the `snap` protocol used during @@ -36,11 +36,11 @@ const ProtocolName = "snap" // ProtocolVersions are the supported versions of the `snap` protocol (first // is primary). -var ProtocolVersions = []uint{snap1} +var ProtocolVersions = []uint{SNAP1} // protocolLengths are the number of implemented message corresponding to // different protocol versions. -var protocolLengths = map[uint]uint64{snap1: 8} +var protocolLengths = map[uint]uint64{SNAP1: 8} // maxMessageSize is the maximum cap on the size of a protocol message. const maxMessageSize = 10 * 1024 * 1024 diff --git a/eth/protocols/snap/sync.go b/eth/protocols/snap/sync.go index 9ef9d7571..df364b183 100644 --- a/eth/protocols/snap/sync.go +++ b/eth/protocols/snap/sync.go @@ -325,10 +325,10 @@ type healTask struct { codeTasks map[common.Hash]struct{} // Set of byte code tasks currently queued for retrieval } -// syncProgress is a database entry to allow suspending and resuming a snapshot state +// SyncProgress is a database entry to allow suspending and resuming a snapshot state // sync. Opposed to full and fast sync, there is no way to restart a suspended // snap sync without prior knowledge of the suspension point. -type syncProgress struct { +type SyncProgress struct { Tasks []*accountTask // The suspended account tasks (contract tasks within) // Status report during syncing phase @@ -342,12 +342,15 @@ type syncProgress struct { // Status report during healing phase TrienodeHealSynced uint64 // Number of state trie nodes downloaded TrienodeHealBytes common.StorageSize // Number of state trie bytes persisted to disk - TrienodeHealDups uint64 // Number of state trie nodes already processed - TrienodeHealNops uint64 // Number of state trie nodes not requested BytecodeHealSynced uint64 // Number of bytecodes downloaded BytecodeHealBytes common.StorageSize // Number of bytecodes persisted to disk - BytecodeHealDups uint64 // Number of bytecodes already processed - BytecodeHealNops uint64 // Number of bytecodes not requested +} + +// SyncPending is analogous to SyncProgress, but it's used to report on pending +// ephemeral sync progress that doesn't get persisted into the database. +type SyncPending struct { + TrienodeHeal uint64 // Number of state trie nodes pending + BytecodeHeal uint64 // Number of bytecodes pending } // SyncPeer abstracts out the methods required for a peer to be synced against @@ -671,7 +674,7 @@ func (s *Syncer) Sync(root common.Hash, cancel chan struct{}) error { // loadSyncStatus retrieves a previously aborted sync status from the database, // or generates a fresh one if none is available. func (s *Syncer) loadSyncStatus() { - var progress syncProgress + var progress SyncProgress if status := rawdb.ReadSnapshotSyncStatus(s.db); status != nil { if err := json.Unmarshal(status, &progress); err != nil { @@ -775,7 +778,7 @@ func (s *Syncer) saveSyncStatus() { } } // Store the actual progress markers - progress := &syncProgress{ + progress := &SyncProgress{ Tasks: s.tasks, AccountSynced: s.accountSynced, AccountBytes: s.accountBytes, @@ -795,6 +798,31 @@ func (s *Syncer) saveSyncStatus() { rawdb.WriteSnapshotSyncStatus(s.db, status) } +// Progress returns the snap sync status statistics. +func (s *Syncer) Progress() (*SyncProgress, *SyncPending) { + s.lock.Lock() + defer s.lock.Unlock() + + progress := &SyncProgress{ + AccountSynced: s.accountSynced, + AccountBytes: s.accountBytes, + BytecodeSynced: s.bytecodeSynced, + BytecodeBytes: s.bytecodeBytes, + StorageSynced: s.storageSynced, + StorageBytes: s.storageBytes, + TrienodeHealSynced: s.trienodeHealSynced, + TrienodeHealBytes: s.trienodeHealBytes, + BytecodeHealSynced: s.bytecodeHealSynced, + BytecodeHealBytes: s.bytecodeHealBytes, + } + pending := new(SyncPending) + if s.healer != nil { + pending.TrienodeHeal = uint64(len(s.healer.trieTasks)) + pending.BytecodeHeal = uint64(len(s.healer.codeTasks)) + } + return progress, pending +} + // cleanAccountTasks removes account range retrieval tasks that have already been // completed. func (s *Syncer) cleanAccountTasks() { diff --git a/eth/sync.go b/eth/sync.go index 61a6981fb..b8ac67d3b 100644 --- a/eth/sync.go +++ b/eth/sync.go @@ -165,10 +165,7 @@ func (cs *chainSyncer) nextSyncOp() *chainSyncOp { return nil } mode, ourTD := cs.modeAndLocalHead() - if mode == downloader.FastSync && atomic.LoadUint32(&cs.handler.snapSync) == 1 { - // Fast sync via the snap protocol - mode = downloader.SnapSync - } + op := peerToSyncOp(mode, peer) if op.td.Cmp(ourTD) <= 0 { return nil // We're in sync. @@ -182,19 +179,19 @@ func peerToSyncOp(mode downloader.SyncMode, p *eth.Peer) *chainSyncOp { } func (cs *chainSyncer) modeAndLocalHead() (downloader.SyncMode, *big.Int) { - // If we're in fast sync mode, return that directly - if atomic.LoadUint32(&cs.handler.fastSync) == 1 { + // If we're in snap sync mode, return that directly + if atomic.LoadUint32(&cs.handler.snapSync) == 1 { block := cs.handler.chain.CurrentFastBlock() td := cs.handler.chain.GetTd(block.Hash(), block.NumberU64()) - return downloader.FastSync, td + return downloader.SnapSync, td } // We are probably in full sync, but we might have rewound to before the - // fast sync pivot, check if we should reenable + // snap sync pivot, check if we should reenable if pivot := rawdb.ReadLastPivotNumber(cs.handler.database); pivot != nil { if head := cs.handler.chain.CurrentBlock(); head.NumberU64() < *pivot { block := cs.handler.chain.CurrentFastBlock() td := cs.handler.chain.GetTd(block.Hash(), block.NumberU64()) - return downloader.FastSync, td + return downloader.SnapSync, td } } // Nope, we're really full syncing @@ -211,15 +208,15 @@ func (cs *chainSyncer) startSync(op *chainSyncOp) { // doSync synchronizes the local blockchain with a remote peer. func (h *handler) doSync(op *chainSyncOp) error { - if op.mode == downloader.FastSync || op.mode == downloader.SnapSync { - // Before launch the fast sync, we have to ensure user uses the same + if op.mode == downloader.SnapSync { + // Before launch the snap sync, we have to ensure user uses the same // txlookup limit. - // The main concern here is: during the fast sync Geth won't index the + // The main concern here is: during the snap sync Geth won't index the // block(generate tx indices) before the HEAD-limit. But if user changes - // the limit in the next fast sync(e.g. user kill Geth manually and + // the limit in the next snap sync(e.g. user kill Geth manually and // restart) then it will be hard for Geth to figure out the oldest block // has been indexed. So here for the user-experience wise, it's non-optimal - // that user can't change limit during the fast sync. If changed, Geth + // that user can't change limit during the snap sync. If changed, Geth // will just blindly use the original one. limit := h.chain.TxLookupLimit() if stored := rawdb.ReadFastTxLookupLimit(h.database); stored == nil { @@ -229,15 +226,11 @@ func (h *handler) doSync(op *chainSyncOp) error { log.Warn("Update txLookup limit", "provided", limit, "updated", *stored) } } - // Run the sync cycle, and disable fast sync if we're past the pivot block + // Run the sync cycle, and disable snap sync if we're past the pivot block err := h.downloader.Synchronise(op.peer.ID(), op.head, op.td, op.mode) if err != nil { return err } - if atomic.LoadUint32(&h.fastSync) == 1 { - log.Info("Fast sync complete, auto disabling") - atomic.StoreUint32(&h.fastSync, 0) - } if atomic.LoadUint32(&h.snapSync) == 1 { log.Info("Snap sync complete, auto disabling") atomic.StoreUint32(&h.snapSync, 0) diff --git a/eth/sync_test.go b/eth/sync_test.go index e96b9ee81..929a2a9d1 100644 --- a/eth/sync_test.go +++ b/eth/sync_test.go @@ -23,57 +23,74 @@ import ( "github.com/ethereum/go-ethereum/eth/downloader" "github.com/ethereum/go-ethereum/eth/protocols/eth" + "github.com/ethereum/go-ethereum/eth/protocols/snap" "github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p/enode" ) -// Tests that fast sync is disabled after a successful sync cycle. -func TestFastSyncDisabling66(t *testing.T) { testFastSyncDisabling(t, eth.ETH66) } +// Tests that snap sync is disabled after a successful sync cycle. +func TestSnapSyncDisabling66(t *testing.T) { testSnapSyncDisabling(t, eth.ETH66, snap.SNAP1) } -// Tests that fast sync gets disabled as soon as a real block is successfully +// Tests that snap sync gets disabled as soon as a real block is successfully // imported into the blockchain. -func testFastSyncDisabling(t *testing.T, protocol uint) { +func testSnapSyncDisabling(t *testing.T, ethVer uint, snapVer uint) { t.Parallel() - // Create an empty handler and ensure it's in fast sync mode + // Create an empty handler and ensure it's in snap sync mode empty := newTestHandler() - if atomic.LoadUint32(&empty.handler.fastSync) == 0 { - t.Fatalf("fast sync disabled on pristine blockchain") + if atomic.LoadUint32(&empty.handler.snapSync) == 0 { + t.Fatalf("snap sync disabled on pristine blockchain") } defer empty.close() - // Create a full handler and ensure fast sync ends up disabled + // Create a full handler and ensure snap sync ends up disabled full := newTestHandlerWithBlocks(1024) - if atomic.LoadUint32(&full.handler.fastSync) == 1 { - t.Fatalf("fast sync not disabled on non-empty blockchain") + if atomic.LoadUint32(&full.handler.snapSync) == 1 { + t.Fatalf("snap sync not disabled on non-empty blockchain") } defer full.close() - // Sync up the two handlers - emptyPipe, fullPipe := p2p.MsgPipe() - defer emptyPipe.Close() - defer fullPipe.Close() + // Sync up the two handlers via both `eth` and `snap` + caps := []p2p.Cap{{Name: "eth", Version: ethVer}, {Name: "snap", Version: snapVer}} - emptyPeer := eth.NewPeer(protocol, p2p.NewPeer(enode.ID{1}, "", nil), emptyPipe, empty.txpool) - fullPeer := eth.NewPeer(protocol, p2p.NewPeer(enode.ID{2}, "", nil), fullPipe, full.txpool) - defer emptyPeer.Close() - defer fullPeer.Close() + emptyPipeEth, fullPipeEth := p2p.MsgPipe() + defer emptyPipeEth.Close() + defer fullPipeEth.Close() - go empty.handler.runEthPeer(emptyPeer, func(peer *eth.Peer) error { + emptyPeerEth := eth.NewPeer(ethVer, p2p.NewPeer(enode.ID{1}, "", caps), emptyPipeEth, empty.txpool) + fullPeerEth := eth.NewPeer(ethVer, p2p.NewPeer(enode.ID{2}, "", caps), fullPipeEth, full.txpool) + defer emptyPeerEth.Close() + defer fullPeerEth.Close() + + go empty.handler.runEthPeer(emptyPeerEth, func(peer *eth.Peer) error { return eth.Handle((*ethHandler)(empty.handler), peer) }) - go full.handler.runEthPeer(fullPeer, func(peer *eth.Peer) error { + go full.handler.runEthPeer(fullPeerEth, func(peer *eth.Peer) error { return eth.Handle((*ethHandler)(full.handler), peer) }) + + emptyPipeSnap, fullPipeSnap := p2p.MsgPipe() + defer emptyPipeSnap.Close() + defer fullPipeSnap.Close() + + emptyPeerSnap := snap.NewPeer(snapVer, p2p.NewPeer(enode.ID{1}, "", caps), emptyPipeSnap) + fullPeerSnap := snap.NewPeer(snapVer, p2p.NewPeer(enode.ID{2}, "", caps), fullPipeSnap) + + go empty.handler.runSnapExtension(emptyPeerSnap, func(peer *snap.Peer) error { + return snap.Handle((*snapHandler)(empty.handler), peer) + }) + go full.handler.runSnapExtension(fullPeerSnap, func(peer *snap.Peer) error { + return snap.Handle((*snapHandler)(full.handler), peer) + }) // Wait a bit for the above handlers to start time.Sleep(250 * time.Millisecond) - // Check that fast sync was disabled - op := peerToSyncOp(downloader.FastSync, empty.handler.peers.peerWithHighestTD()) + // Check that snap sync was disabled + op := peerToSyncOp(downloader.SnapSync, empty.handler.peers.peerWithHighestTD()) if err := empty.handler.doSync(op); err != nil { t.Fatal("sync failed:", err) } - if atomic.LoadUint32(&empty.handler.fastSync) == 1 { - t.Fatalf("fast sync not disabled after successful synchronisation") + if atomic.LoadUint32(&empty.handler.snapSync) == 1 { + t.Fatalf("snap sync not disabled after successful synchronisation") } } diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go index 37680807d..78194d04a 100644 --- a/ethclient/ethclient.go +++ b/ethclient/ethclient.go @@ -286,14 +286,6 @@ func (ec *Client) TransactionReceipt(ctx context.Context, txHash common.Hash) (* return r, err } -type rpcProgress struct { - StartingBlock hexutil.Uint64 - CurrentBlock hexutil.Uint64 - HighestBlock hexutil.Uint64 - PulledStates hexutil.Uint64 - KnownStates hexutil.Uint64 -} - // SyncProgress retrieves the current progress of the sync algorithm. If there's // no sync currently running, it returns nil. func (ec *Client) SyncProgress(ctx context.Context) (*ethereum.SyncProgress, error) { @@ -306,17 +298,11 @@ func (ec *Client) SyncProgress(ctx context.Context) (*ethereum.SyncProgress, err if err := json.Unmarshal(raw, &syncing); err == nil { return nil, nil // Not syncing (always false) } - var progress *rpcProgress + var progress *ethereum.SyncProgress if err := json.Unmarshal(raw, &progress); err != nil { return nil, err } - return ðereum.SyncProgress{ - StartingBlock: uint64(progress.StartingBlock), - CurrentBlock: uint64(progress.CurrentBlock), - HighestBlock: uint64(progress.HighestBlock), - PulledStates: uint64(progress.PulledStates), - KnownStates: uint64(progress.KnownStates), - }, nil + return progress, nil } // SubscribeNewHead subscribes to notifications about the current blockchain head diff --git a/graphql/graphql.go b/graphql/graphql.go index af6b7dc31..e92f1126f 100644 --- a/graphql/graphql.go +++ b/graphql/graphql.go @@ -1220,32 +1220,66 @@ type SyncState struct { func (s *SyncState) StartingBlock() hexutil.Uint64 { return hexutil.Uint64(s.progress.StartingBlock) } - func (s *SyncState) CurrentBlock() hexutil.Uint64 { return hexutil.Uint64(s.progress.CurrentBlock) } - func (s *SyncState) HighestBlock() hexutil.Uint64 { return hexutil.Uint64(s.progress.HighestBlock) } - -func (s *SyncState) PulledStates() *hexutil.Uint64 { - ret := hexutil.Uint64(s.progress.PulledStates) - return &ret +func (s *SyncState) SyncedAccounts() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedAccounts) } - -func (s *SyncState) KnownStates() *hexutil.Uint64 { - ret := hexutil.Uint64(s.progress.KnownStates) - return &ret +func (s *SyncState) SyncedAccountBytes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedAccountBytes) +} +func (s *SyncState) SyncedBytecodes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedBytecodes) +} +func (s *SyncState) SyncedBytecodeBytes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedBytecodeBytes) +} +func (s *SyncState) SyncedStorage() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedStorage) +} +func (s *SyncState) SyncedStorageBytes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.SyncedStorageBytes) +} +func (s *SyncState) HealedTrienodes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealedTrienodes) +} +func (s *SyncState) HealedTrienodeBytes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealedTrienodeBytes) +} +func (s *SyncState) HealedBytecodes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealedBytecodes) +} +func (s *SyncState) HealedBytecodeBytes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealedBytecodeBytes) +} +func (s *SyncState) HealingTrienodes() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealingTrienodes) +} +func (s *SyncState) HealingBytecode() hexutil.Uint64 { + return hexutil.Uint64(s.progress.HealingBytecode) } // Syncing returns false in case the node is currently not syncing with the network. It can be up to date or has not // yet received the latest block headers from its pears. In case it is synchronizing: -// - startingBlock: block number this node started to synchronise from -// - currentBlock: block number this node is currently importing -// - highestBlock: block number of the highest block header this node has received from peers -// - pulledStates: number of state entries processed until now -// - knownStates: number of known state entries that still need to be pulled +// - startingBlock: block number this node started to synchronise from +// - currentBlock: block number this node is currently importing +// - highestBlock: block number of the highest block header this node has received from peers +// - syncedAccounts: number of accounts downloaded +// - syncedAccountBytes: number of account trie bytes persisted to disk +// - syncedBytecodes: number of bytecodes downloaded +// - syncedBytecodeBytes: number of bytecode bytes downloaded +// - syncedStorage: number of storage slots downloaded +// - syncedStorageBytes: number of storage trie bytes persisted to disk +// - healedTrienodes: number of state trie nodes downloaded +// - healedTrienodeBytes: number of state trie bytes persisted to disk +// - healedBytecodes: number of bytecodes downloaded +// - healedBytecodeBytes: number of bytecodes persisted to disk +// - healingTrienodes: number of state trie nodes pending +// - healingBytecode: number of bytecodes pending func (r *Resolver) Syncing() (*SyncState, error) { progress := r.backend.SyncProgress() diff --git a/graphql/schema.go b/graphql/schema.go index dfd094a42..86060cd23 100644 --- a/graphql/schema.go +++ b/graphql/schema.go @@ -297,12 +297,6 @@ const schema string = ` currentBlock: Long! # HighestBlock is the latest known block number. highestBlock: Long! - # PulledStates is the number of state entries fetched so far, or null - # if this is not known or not relevant. - pulledStates: Long - # KnownStates is the number of states the node knows of so far, or null - # if this is not known or not relevant. - knownStates: Long } # Pending represents the current pending state. diff --git a/interfaces.go b/interfaces.go index b9d0bb880..daea1afb6 100644 --- a/interfaces.go +++ b/interfaces.go @@ -101,8 +101,22 @@ type SyncProgress struct { StartingBlock uint64 // Block number where sync began CurrentBlock uint64 // Current block number where sync is at HighestBlock uint64 // Highest alleged block number in the chain - PulledStates uint64 // Number of state trie entries already downloaded - KnownStates uint64 // Total number of state trie entries known about + + // Fields belonging to snap sync + SyncedAccounts uint64 // Number of accounts downloaded + SyncedAccountBytes uint64 // Number of account trie bytes persisted to disk + SyncedBytecodes uint64 // Number of bytecodes downloaded + SyncedBytecodeBytes uint64 // Number of bytecode bytes downloaded + SyncedStorage uint64 // Number of storage slots downloaded + SyncedStorageBytes uint64 // Number of storage trie bytes persisted to disk + + HealedTrienodes uint64 // Number of state trie nodes downloaded + HealedTrienodeBytes uint64 // Number of state trie bytes persisted to disk + HealedBytecodes uint64 // Number of bytecodes downloaded + HealedBytecodeBytes uint64 // Number of bytecodes persisted to disk + + HealingTrienodes uint64 // Number of state trie nodes pending + HealingBytecode uint64 // Number of bytecodes pending } // ChainSyncReader wraps access to the node's current sync status. If there's no diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go index f1b4a0199..65e34752b 100644 --- a/internal/ethapi/api.go +++ b/internal/ethapi/api.go @@ -131,11 +131,21 @@ func (s *PublicEthereumAPI) Syncing() (interface{}, error) { } // Otherwise gather the block sync stats return map[string]interface{}{ - "startingBlock": hexutil.Uint64(progress.StartingBlock), - "currentBlock": hexutil.Uint64(progress.CurrentBlock), - "highestBlock": hexutil.Uint64(progress.HighestBlock), - "pulledStates": hexutil.Uint64(progress.PulledStates), - "knownStates": hexutil.Uint64(progress.KnownStates), + "startingBlock": hexutil.Uint64(progress.StartingBlock), + "currentBlock": hexutil.Uint64(progress.CurrentBlock), + "highestBlock": hexutil.Uint64(progress.HighestBlock), + "syncedAccounts": hexutil.Uint64(progress.SyncedAccounts), + "syncedAccountBytes": hexutil.Uint64(progress.SyncedAccountBytes), + "syncedBytecodes": hexutil.Uint64(progress.SyncedBytecodes), + "syncedBytecodeBytes": hexutil.Uint64(progress.SyncedBytecodeBytes), + "syncedStorage": hexutil.Uint64(progress.SyncedStorage), + "syncedStorageBytes": hexutil.Uint64(progress.SyncedStorageBytes), + "healedTrienodes": hexutil.Uint64(progress.HealedTrienodes), + "healedTrienodeBytes": hexutil.Uint64(progress.HealedTrienodeBytes), + "healedBytecodes": hexutil.Uint64(progress.HealedBytecodes), + "healedBytecodeBytes": hexutil.Uint64(progress.HealedBytecodeBytes), + "healingTrienodes": hexutil.Uint64(progress.HealingTrienodes), + "healingBytecode": hexutil.Uint64(progress.HealingBytecode), }, nil } diff --git a/internal/jsre/deps/bindata.go b/internal/jsre/deps/bindata.go index 6f079c2ba..3e7d3a136 100644 --- a/internal/jsre/deps/bindata.go +++ b/internal/jsre/deps/bindata.go @@ -1,7 +1,7 @@ // Code generated by go-bindata. DO NOT EDIT. // sources: // bignumber.js (17.273kB) -// web3.js (401.764kB) +// web3.js (402.466kB) package deps @@ -90,7 +90,7 @@ func bignumberJs() (*asset, error) { return a, nil } -var _web3Js = 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+var _web3Js = 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func web3JsBytes() ([]byte, error) { return bindataRead( @@ -106,7 +106,7 @@ func web3Js() (*asset, error) { } info := bindataFileInfo{name: "web3.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)} - a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x4c, 0xb2, 0xb5, 0x69, 0x9e, 0x5e, 0xe3, 0x56, 0x47, 0x6, 0x96, 0x4a, 0x7a, 0xcd, 0xdf, 0x79, 0xc5, 0xf2, 0x71, 0x64, 0x77, 0x8a, 0x53, 0x58, 0x6, 0xb1, 0xff, 0x4f, 0x0, 0xd6, 0x7f, 0x61}} + a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x12, 0x22, 0x81, 0x1, 0xe2, 0x72, 0xd3, 0xd5, 0x4d, 0x2d, 0x30, 0xa5, 0x3, 0x90, 0x3a, 0xf8, 0x17, 0x2d, 0xe3, 0x5, 0x44, 0x21, 0x63, 0xba, 0x1a, 0x37, 0x3f, 0x3f, 0xa5, 0x30, 0x5e, 0x6f}} return a, nil } diff --git a/internal/jsre/deps/web3.js b/internal/jsre/deps/web3.js index c130f80de..69686ce92 100644 --- a/internal/jsre/deps/web3.js +++ b/internal/jsre/deps/web3.js @@ -3949,10 +3949,18 @@ var outputSyncingFormatter = function(result) { result.startingBlock = utils.toDecimal(result.startingBlock); result.currentBlock = utils.toDecimal(result.currentBlock); result.highestBlock = utils.toDecimal(result.highestBlock); - if (result.knownStates) { - result.knownStates = utils.toDecimal(result.knownStates); - result.pulledStates = utils.toDecimal(result.pulledStates); - } + result.syncedAccounts = utils.toDecimal(result.syncedAccounts); + result.syncedAccountBytes = utils.toDecimal(result.syncedAccountBytes); + result.syncedBytecodes = utils.toDecimal(result.syncedBytecodes); + result.syncedBytecodeBytes = utils.toDecimal(result.syncedBytecodeBytes); + result.syncedStorage = utils.toDecimal(result.syncedStorage); + result.syncedStorageBytes = utils.toDecimal(result.syncedStorageBytes); + result.healedTrienodes = utils.toDecimal(result.healedTrienodes); + result.healedTrienodeBytes = utils.toDecimal(result.healedTrienodeBytes); + result.healedBytecodes = utils.toDecimal(result.healedBytecodes); + result.healedBytecodeBytes = utils.toDecimal(result.healedBytecodeBytes); + result.healingTrienodes = utils.toDecimal(result.healingTrienodes); + result.healingBytecode = utils.toDecimal(result.healingBytecode); return result; }; diff --git a/les/downloader/downloader.go b/les/downloader/downloader.go index e7dfc4158..722077a5f 100644 --- a/les/downloader/downloader.go +++ b/les/downloader/downloader.go @@ -231,9 +231,9 @@ func New(checkpoint uint64, stateDb ethdb.Database, stateBloom *trie.SyncBloom, stateCh: make(chan dataPack), SnapSyncer: snap.NewSyncer(stateDb), stateSyncStart: make(chan *stateSync), - syncStatsState: stateSyncStats{ - processed: rawdb.ReadFastTrieProgress(stateDb), - }, + //syncStatsState: stateSyncStats{ + // processed: rawdb.ReadFastTrieProgress(stateDb), + //}, trackStateReq: make(chan *stateReq), } go dl.stateFetcher() @@ -268,8 +268,8 @@ func (d *Downloader) Progress() ethereum.SyncProgress { StartingBlock: d.syncStatsChainOrigin, CurrentBlock: current, HighestBlock: d.syncStatsChainHeight, - PulledStates: d.syncStatsState.processed, - KnownStates: d.syncStatsState.processed + d.syncStatsState.pending, + //PulledStates: d.syncStatsState.processed, + //KnownStates: d.syncStatsState.processed + d.syncStatsState.pending, } } diff --git a/les/downloader/downloader_test.go b/les/downloader/downloader_test.go index 17cd3630c..8736de39d 100644 --- a/les/downloader/downloader_test.go +++ b/les/downloader/downloader_test.go @@ -1207,8 +1207,8 @@ func checkProgress(t *testing.T, d *Downloader, stage string, want ethereum.Sync t.Helper() p := d.Progress() - p.KnownStates, p.PulledStates = 0, 0 - want.KnownStates, want.PulledStates = 0, 0 + //p.KnownStates, p.PulledStates = 0, 0 + //want.KnownStates, want.PulledStates = 0, 0 if p != want { t.Fatalf("%s progress mismatch:\nhave %+v\nwant %+v", stage, p, want) } diff --git a/les/downloader/statesync.go b/les/downloader/statesync.go index 6c53e5577..bc396fffb 100644 --- a/les/downloader/statesync.go +++ b/les/downloader/statesync.go @@ -22,7 +22,6 @@ import ( "time" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethdb" @@ -610,6 +609,6 @@ func (s *stateSync) updateStats(written, duplicate, unexpected int, duration tim log.Info("Imported new state entries", "count", written, "elapsed", common.PrettyDuration(duration), "processed", s.d.syncStatsState.processed, "pending", s.d.syncStatsState.pending, "trieretry", len(s.trieTasks), "coderetry", len(s.codeTasks), "duplicate", s.d.syncStatsState.duplicate, "unexpected", s.d.syncStatsState.unexpected) } if written > 0 { - rawdb.WriteFastTrieProgress(s.d.stateDB, s.d.syncStatsState.processed) + //rawdb.WriteFastTrieProgress(s.d.stateDB, s.d.syncStatsState.processed) } } diff --git a/les/fetcher/block_fetcher_test.go b/les/fetcher/block_fetcher_test.go index b6d1125b5..de066ac26 100644 --- a/les/fetcher/block_fetcher_test.go +++ b/les/fetcher/block_fetcher_test.go @@ -60,8 +60,8 @@ func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common block.AddTx(tx) } // If the block number is a multiple of 5, add a bonus uncle to the block - if i%5 == 0 { - block.AddUncle(&types.Header{ParentHash: block.PrevBlock(i - 1).Hash(), Number: big.NewInt(int64(i - 1))}) + if i > 0 && i%5 == 0 { + block.AddUncle(&types.Header{ParentHash: block.PrevBlock(i - 2).Hash(), Number: big.NewInt(int64(i - 1))}) } }) hashes := make([]common.Hash, n+1) diff --git a/mobile/ethereum.go b/mobile/ethereum.go index 97c46ddca..d5058e4e2 100644 --- a/mobile/ethereum.go +++ b/mobile/ethereum.go @@ -78,11 +78,21 @@ type SyncProgress struct { progress ethereum.SyncProgress } -func (p *SyncProgress) GetStartingBlock() int64 { return int64(p.progress.StartingBlock) } -func (p *SyncProgress) GetCurrentBlock() int64 { return int64(p.progress.CurrentBlock) } -func (p *SyncProgress) GetHighestBlock() int64 { return int64(p.progress.HighestBlock) } -func (p *SyncProgress) GetPulledStates() int64 { return int64(p.progress.PulledStates) } -func (p *SyncProgress) GetKnownStates() int64 { return int64(p.progress.KnownStates) } +func (p *SyncProgress) GetStartingBlock() int64 { return int64(p.progress.StartingBlock) } +func (p *SyncProgress) GetCurrentBlock() int64 { return int64(p.progress.CurrentBlock) } +func (p *SyncProgress) GetHighestBlock() int64 { return int64(p.progress.HighestBlock) } +func (p *SyncProgress) GetSyncedAccounts() int64 { return int64(p.progress.SyncedAccounts) } +func (p *SyncProgress) GetSyncedAccountBytes() int64 { return int64(p.progress.SyncedAccountBytes) } +func (p *SyncProgress) GetSyncedBytecodes() int64 { return int64(p.progress.SyncedBytecodes) } +func (p *SyncProgress) GetSyncedBytecodeBytes() int64 { return int64(p.progress.SyncedBytecodeBytes) } +func (p *SyncProgress) GetSyncedStorage() int64 { return int64(p.progress.SyncedStorage) } +func (p *SyncProgress) GetSyncedStorageBytes() int64 { return int64(p.progress.SyncedStorageBytes) } +func (p *SyncProgress) GetHealedTrienodes() int64 { return int64(p.progress.HealedTrienodes) } +func (p *SyncProgress) GetHealedTrienodeBytes() int64 { return int64(p.progress.HealedTrienodeBytes) } +func (p *SyncProgress) GetHealedBytecodes() int64 { return int64(p.progress.HealedBytecodes) } +func (p *SyncProgress) GetHealedBytecodeBytes() int64 { return int64(p.progress.HealedBytecodeBytes) } +func (p *SyncProgress) GetHealingTrienodes() int64 { return int64(p.progress.HealingTrienodes) } +func (p *SyncProgress) GetHealingBytecode() int64 { return int64(p.progress.HealingBytecode) } // Topics is a set of topic lists to filter events with. type Topics struct{ topics [][]common.Hash } diff --git a/p2p/peer.go b/p2p/peer.go index b6d0dbd1a..8f564e776 100644 --- a/p2p/peer.go +++ b/p2p/peer.go @@ -121,10 +121,18 @@ type Peer struct { // NewPeer returns a peer for testing purposes. func NewPeer(id enode.ID, name string, caps []Cap) *Peer { + // Generate a fake set of local protocols to match as running caps. Almost + // no fields needs to be meaningful here as we're only using it to cross- + // check with the "remote" caps array. + protos := make([]Protocol, len(caps)) + for i, cap := range caps { + protos[i].Name = cap.Name + protos[i].Version = cap.Version + } pipe, _ := net.Pipe() node := enode.SignNull(new(enr.Record), id) conn := &conn{fd: pipe, transport: nil, node: node, caps: caps, name: name} - peer := newPeer(log.Root(), conn, nil) + peer := newPeer(log.Root(), conn, protos) close(peer.closed) // ensures Disconnect doesn't block return peer }