b0b67be0a2
This PR changes how sidechains are handled. Before the merge, it was possible to import a chain with lower td and not set it as canonical. After the merge, we expect every chain that we get via InsertChain to be canonical. Non-canonical blocks can still be inserted with InsertBlockWIthoutSetHead. If during the InsertChain, the existing chain is not canonical anymore, we mark it as a sidechain and send the SideChainEvents normally.
714 lines
22 KiB
Go
714 lines
22 KiB
Go
// Copyright 2020 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 <http://www.gnu.org/licenses/>.
|
|
|
|
// Tests that abnormal program termination (i.e.crash) and restart can recovery
|
|
// the snapshot properly if the snapshot is enabled.
|
|
|
|
package core
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"math/big"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/consensus"
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"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/ethdb"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
// snapshotTestBasic wraps the common testing fields in the snapshot tests.
|
|
type snapshotTestBasic struct {
|
|
scheme string // Disk scheme used for storing trie nodes
|
|
chainBlocks int // Number of blocks to generate for the canonical chain
|
|
snapshotBlock uint64 // Block number of the relevant snapshot disk layer
|
|
commitBlock uint64 // Block number for which to commit the state to disk
|
|
|
|
expCanonicalBlocks int // Number of canonical blocks expected to remain in the database (excl. genesis)
|
|
expHeadHeader uint64 // Block number of the expected head header
|
|
expHeadFastBlock uint64 // Block number of the expected head fast sync block
|
|
expHeadBlock uint64 // Block number of the expected head full block
|
|
expSnapshotBottom uint64 // The block height corresponding to the snapshot disk layer
|
|
|
|
// share fields, set in runtime
|
|
datadir string
|
|
ancient string
|
|
db ethdb.Database
|
|
genDb ethdb.Database
|
|
engine consensus.Engine
|
|
gspec *Genesis
|
|
}
|
|
|
|
func (basic *snapshotTestBasic) prepare(t *testing.T) (*BlockChain, []*types.Block) {
|
|
// Create a temporary persistent database
|
|
datadir := t.TempDir()
|
|
ancient := filepath.Join(datadir, "ancient")
|
|
|
|
db, err := rawdb.Open(rawdb.OpenOptions{
|
|
Directory: datadir,
|
|
AncientsDirectory: ancient,
|
|
Ephemeral: true,
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("Failed to create persistent database: %v", err)
|
|
}
|
|
// Initialize a fresh chain
|
|
var (
|
|
gspec = &Genesis{
|
|
BaseFee: big.NewInt(params.InitialBaseFee),
|
|
Config: params.AllEthashProtocolChanges,
|
|
}
|
|
engine = ethash.NewFullFaker()
|
|
)
|
|
chain, err := NewBlockChain(db, DefaultCacheConfigWithScheme(basic.scheme), gspec, nil, engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create chain: %v", err)
|
|
}
|
|
genDb, blocks, _ := GenerateChainWithGenesis(gspec, engine, basic.chainBlocks, func(i int, b *BlockGen) {})
|
|
|
|
// Insert the blocks with configured settings.
|
|
var breakpoints []uint64
|
|
if basic.commitBlock > basic.snapshotBlock {
|
|
breakpoints = append(breakpoints, basic.snapshotBlock, basic.commitBlock)
|
|
} else {
|
|
breakpoints = append(breakpoints, basic.commitBlock, basic.snapshotBlock)
|
|
}
|
|
var startPoint uint64
|
|
for _, point := range breakpoints {
|
|
if _, err := chain.InsertChain(blocks[startPoint:point]); err != nil {
|
|
t.Fatalf("Failed to import canonical chain start: %v", err)
|
|
}
|
|
startPoint = point
|
|
|
|
if basic.commitBlock > 0 && basic.commitBlock == point {
|
|
chain.TrieDB().Commit(blocks[point-1].Root(), false)
|
|
}
|
|
if basic.snapshotBlock > 0 && basic.snapshotBlock == point {
|
|
// Flushing the entire snap tree into the disk, the
|
|
// relevant (a) snapshot root and (b) snapshot generator
|
|
// will be persisted atomically.
|
|
chain.snaps.Cap(blocks[point-1].Root(), 0)
|
|
diskRoot, blockRoot := chain.snaps.DiskRoot(), blocks[point-1].Root()
|
|
if !bytes.Equal(diskRoot.Bytes(), blockRoot.Bytes()) {
|
|
t.Fatalf("Failed to flush disk layer change, want %x, got %x", blockRoot, diskRoot)
|
|
}
|
|
}
|
|
}
|
|
if _, err := chain.InsertChain(blocks[startPoint:]); err != nil {
|
|
t.Fatalf("Failed to import canonical chain tail: %v", err)
|
|
}
|
|
|
|
// Set runtime fields
|
|
basic.datadir = datadir
|
|
basic.ancient = ancient
|
|
basic.db = db
|
|
basic.genDb = genDb
|
|
basic.engine = engine
|
|
basic.gspec = gspec
|
|
return chain, blocks
|
|
}
|
|
|
|
func (basic *snapshotTestBasic) verify(t *testing.T, chain *BlockChain, blocks []*types.Block) {
|
|
// Iterate over all the remaining blocks and ensure there are no gaps
|
|
verifyNoGaps(t, chain, true, blocks)
|
|
verifyCutoff(t, chain, true, blocks, basic.expCanonicalBlocks)
|
|
|
|
if head := chain.CurrentHeader(); head.Number.Uint64() != basic.expHeadHeader {
|
|
t.Errorf("Head header mismatch: have %d, want %d", head.Number, basic.expHeadHeader)
|
|
}
|
|
if head := chain.CurrentSnapBlock(); head.Number.Uint64() != basic.expHeadFastBlock {
|
|
t.Errorf("Head fast block mismatch: have %d, want %d", head.Number, basic.expHeadFastBlock)
|
|
}
|
|
if head := chain.CurrentBlock(); head.Number.Uint64() != basic.expHeadBlock {
|
|
t.Errorf("Head block mismatch: have %d, want %d", head.Number, basic.expHeadBlock)
|
|
}
|
|
|
|
// Check the disk layer, ensure they are matched
|
|
block := chain.GetBlockByNumber(basic.expSnapshotBottom)
|
|
if block == nil {
|
|
t.Errorf("The corresponding block[%d] of snapshot disk layer is missing", basic.expSnapshotBottom)
|
|
} else if !bytes.Equal(chain.snaps.DiskRoot().Bytes(), block.Root().Bytes()) {
|
|
t.Errorf("The snapshot disk layer root is incorrect, want %x, get %x", block.Root(), chain.snaps.DiskRoot())
|
|
}
|
|
|
|
// Check the snapshot, ensure it's integrated
|
|
if err := chain.snaps.Verify(block.Root()); err != nil {
|
|
t.Errorf("The disk layer is not integrated %v", err)
|
|
}
|
|
}
|
|
|
|
//nolint:unused
|
|
func (basic *snapshotTestBasic) dump() string {
|
|
buffer := new(strings.Builder)
|
|
|
|
fmt.Fprint(buffer, "Chain:\n G")
|
|
for i := 0; i < basic.chainBlocks; i++ {
|
|
fmt.Fprintf(buffer, "->C%d", i+1)
|
|
}
|
|
fmt.Fprint(buffer, " (HEAD)\n\n")
|
|
|
|
fmt.Fprintf(buffer, "Commit: G")
|
|
if basic.commitBlock > 0 {
|
|
fmt.Fprintf(buffer, ", C%d", basic.commitBlock)
|
|
}
|
|
fmt.Fprint(buffer, "\n")
|
|
|
|
fmt.Fprintf(buffer, "Snapshot: G")
|
|
if basic.snapshotBlock > 0 {
|
|
fmt.Fprintf(buffer, ", C%d", basic.snapshotBlock)
|
|
}
|
|
fmt.Fprint(buffer, "\n")
|
|
|
|
//if crash {
|
|
// fmt.Fprintf(buffer, "\nCRASH\n\n")
|
|
//} else {
|
|
// fmt.Fprintf(buffer, "\nSetHead(%d)\n\n", basic.setHead)
|
|
//}
|
|
fmt.Fprintf(buffer, "------------------------------\n\n")
|
|
|
|
fmt.Fprint(buffer, "Expected in leveldb:\n G")
|
|
for i := 0; i < basic.expCanonicalBlocks; i++ {
|
|
fmt.Fprintf(buffer, "->C%d", i+1)
|
|
}
|
|
fmt.Fprintf(buffer, "\n\n")
|
|
fmt.Fprintf(buffer, "Expected head header : C%d\n", basic.expHeadHeader)
|
|
fmt.Fprintf(buffer, "Expected head fast block: C%d\n", basic.expHeadFastBlock)
|
|
if basic.expHeadBlock == 0 {
|
|
fmt.Fprintf(buffer, "Expected head block : G\n")
|
|
} else {
|
|
fmt.Fprintf(buffer, "Expected head block : C%d\n", basic.expHeadBlock)
|
|
}
|
|
if basic.expSnapshotBottom == 0 {
|
|
fmt.Fprintf(buffer, "Expected snapshot disk : G\n")
|
|
} else {
|
|
fmt.Fprintf(buffer, "Expected snapshot disk : C%d\n", basic.expSnapshotBottom)
|
|
}
|
|
return buffer.String()
|
|
}
|
|
|
|
func (basic *snapshotTestBasic) teardown() {
|
|
basic.db.Close()
|
|
basic.genDb.Close()
|
|
os.RemoveAll(basic.datadir)
|
|
os.RemoveAll(basic.ancient)
|
|
}
|
|
|
|
// snapshotTest is a test case type for normal snapshot recovery.
|
|
// It can be used for testing that restart Geth normally.
|
|
type snapshotTest struct {
|
|
snapshotTestBasic
|
|
}
|
|
|
|
func (snaptest *snapshotTest) test(t *testing.T) {
|
|
// It's hard to follow the test case, visualize the input
|
|
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
// fmt.Println(tt.dump())
|
|
chain, blocks := snaptest.prepare(t)
|
|
|
|
// Restart the chain normally
|
|
chain.Stop()
|
|
newchain, err := NewBlockChain(snaptest.db, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
defer newchain.Stop()
|
|
|
|
snaptest.verify(t, newchain, blocks)
|
|
}
|
|
|
|
// crashSnapshotTest is a test case type for irregular snapshot recovery.
|
|
// It can be used for testing that restart Geth after the crash.
|
|
type crashSnapshotTest struct {
|
|
snapshotTestBasic
|
|
}
|
|
|
|
func (snaptest *crashSnapshotTest) test(t *testing.T) {
|
|
// It's hard to follow the test case, visualize the input
|
|
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
// fmt.Println(tt.dump())
|
|
chain, blocks := snaptest.prepare(t)
|
|
|
|
// Pull the plug on the database, simulating a hard crash
|
|
db := chain.db
|
|
db.Close()
|
|
chain.stopWithoutSaving()
|
|
chain.triedb.Close()
|
|
|
|
// Start a new blockchain back up and see where the repair leads us
|
|
newdb, err := rawdb.Open(rawdb.OpenOptions{
|
|
Directory: snaptest.datadir,
|
|
AncientsDirectory: snaptest.ancient,
|
|
Ephemeral: true,
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("Failed to reopen persistent database: %v", err)
|
|
}
|
|
defer newdb.Close()
|
|
|
|
// The interesting thing is: instead of starting the blockchain after
|
|
// the crash, we do restart twice here: one after the crash and one
|
|
// after the normal stop. It's used to ensure the broken snapshot
|
|
// can be detected all the time.
|
|
newchain, err := NewBlockChain(newdb, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
newchain.Stop()
|
|
|
|
newchain, err = NewBlockChain(newdb, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
defer newchain.Stop()
|
|
|
|
snaptest.verify(t, newchain, blocks)
|
|
}
|
|
|
|
// gappedSnapshotTest is a test type used to test this scenario:
|
|
// - have a complete snapshot
|
|
// - restart without enabling the snapshot
|
|
// - insert a few blocks
|
|
// - restart with enabling the snapshot again
|
|
type gappedSnapshotTest struct {
|
|
snapshotTestBasic
|
|
gapped int // Number of blocks to insert without enabling snapshot
|
|
}
|
|
|
|
func (snaptest *gappedSnapshotTest) test(t *testing.T) {
|
|
// It's hard to follow the test case, visualize the input
|
|
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
// fmt.Println(tt.dump())
|
|
chain, blocks := snaptest.prepare(t)
|
|
|
|
// Insert blocks without enabling snapshot if gapping is required.
|
|
chain.Stop()
|
|
gappedBlocks, _ := GenerateChain(snaptest.gspec.Config, blocks[len(blocks)-1], snaptest.engine, snaptest.genDb, snaptest.gapped, func(i int, b *BlockGen) {})
|
|
|
|
// Insert a few more blocks without enabling snapshot
|
|
var cacheConfig = &CacheConfig{
|
|
TrieCleanLimit: 256,
|
|
TrieDirtyLimit: 256,
|
|
TrieTimeLimit: 5 * time.Minute,
|
|
SnapshotLimit: 0,
|
|
StateScheme: snaptest.scheme,
|
|
}
|
|
newchain, err := NewBlockChain(snaptest.db, cacheConfig, snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
newchain.InsertChain(gappedBlocks)
|
|
newchain.Stop()
|
|
|
|
// Restart the chain with enabling the snapshot
|
|
newchain, err = NewBlockChain(snaptest.db, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
defer newchain.Stop()
|
|
|
|
snaptest.verify(t, newchain, blocks)
|
|
}
|
|
|
|
// setHeadSnapshotTest is the test type used to test this scenario:
|
|
// - have a complete snapshot
|
|
// - set the head to a lower point
|
|
// - restart
|
|
type setHeadSnapshotTest struct {
|
|
snapshotTestBasic
|
|
setHead uint64 // Block number to set head back to
|
|
}
|
|
|
|
func (snaptest *setHeadSnapshotTest) test(t *testing.T) {
|
|
// It's hard to follow the test case, visualize the input
|
|
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
// fmt.Println(tt.dump())
|
|
chain, blocks := snaptest.prepare(t)
|
|
|
|
// Rewind the chain if setHead operation is required.
|
|
chain.SetHead(snaptest.setHead)
|
|
chain.Stop()
|
|
|
|
newchain, err := NewBlockChain(snaptest.db, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
defer newchain.Stop()
|
|
|
|
snaptest.verify(t, newchain, blocks)
|
|
}
|
|
|
|
// wipeCrashSnapshotTest is the test type used to test this scenario:
|
|
// - have a complete snapshot
|
|
// - restart, insert more blocks without enabling the snapshot
|
|
// - restart again with enabling the snapshot
|
|
// - crash
|
|
type wipeCrashSnapshotTest struct {
|
|
snapshotTestBasic
|
|
newBlocks int
|
|
}
|
|
|
|
func (snaptest *wipeCrashSnapshotTest) test(t *testing.T) {
|
|
// It's hard to follow the test case, visualize the input
|
|
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
// fmt.Println(tt.dump())
|
|
chain, blocks := snaptest.prepare(t)
|
|
|
|
// Firstly, stop the chain properly, with all snapshot journal
|
|
// and state committed.
|
|
chain.Stop()
|
|
|
|
config := &CacheConfig{
|
|
TrieCleanLimit: 256,
|
|
TrieDirtyLimit: 256,
|
|
TrieTimeLimit: 5 * time.Minute,
|
|
SnapshotLimit: 0,
|
|
StateScheme: snaptest.scheme,
|
|
}
|
|
newchain, err := NewBlockChain(snaptest.db, config, snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
newBlocks, _ := GenerateChain(snaptest.gspec.Config, blocks[len(blocks)-1], snaptest.engine, snaptest.genDb, snaptest.newBlocks, func(i int, b *BlockGen) {})
|
|
newchain.InsertChain(newBlocks)
|
|
newchain.Stop()
|
|
|
|
// Restart the chain, the wiper should start working
|
|
config = &CacheConfig{
|
|
TrieCleanLimit: 256,
|
|
TrieDirtyLimit: 256,
|
|
TrieTimeLimit: 5 * time.Minute,
|
|
SnapshotLimit: 256,
|
|
SnapshotWait: false, // Don't wait rebuild
|
|
StateScheme: snaptest.scheme,
|
|
}
|
|
tmp, err := NewBlockChain(snaptest.db, config, snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
|
|
// Simulate the blockchain crash.
|
|
tmp.triedb.Close()
|
|
tmp.stopWithoutSaving()
|
|
|
|
newchain, err = NewBlockChain(snaptest.db, DefaultCacheConfigWithScheme(snaptest.scheme), snaptest.gspec, nil, snaptest.engine, vm.Config{}, nil)
|
|
if err != nil {
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
|
}
|
|
snaptest.verify(t, newchain, blocks)
|
|
newchain.Stop()
|
|
}
|
|
|
|
// Tests a Geth restart with valid snapshot. Before the shutdown, all snapshot
|
|
// journal will be persisted correctly. In this case no snapshot recovery is
|
|
// required.
|
|
func TestRestartWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(0)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : C8
|
|
// Expected snapshot disk : G
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &snapshotTest{
|
|
snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 8,
|
|
expSnapshotBottom: 0, // Initial disk layer built from genesis
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
|
|
// chain head should be rewound to the point with available state. And also the
|
|
// new head should must be lower than disk layer. But there is no committed point
|
|
// so the chain should be rewound to genesis and the disk layer should be left
|
|
// for recovery.
|
|
func TestNoCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : G
|
|
// Expected snapshot disk : C4
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 0,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
|
|
// chain head should be rewound to the point with available state. And also the
|
|
// new head should must be lower than disk layer. But there is only a low committed
|
|
// point so the chain should be rewound to committed point and the disk layer
|
|
// should be left for recovery.
|
|
func TestLowCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G, C2
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : C2
|
|
// Expected snapshot disk : C4
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 2,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 2,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case
|
|
// the chain head should be rewound to the point with available state. And also
|
|
// the new head should must be lower than disk layer. But there is only a high
|
|
// committed point so the chain should be rewound to genesis and the disk layer
|
|
// should be left for recovery.
|
|
func TestHighCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G, C6
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : G
|
|
// Expected snapshot disk : C4
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
expHead := uint64(0)
|
|
if scheme == rawdb.PathScheme {
|
|
expHead = uint64(4)
|
|
}
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 6,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: expHead,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests a Geth was running with snapshot enabled. Then restarts without
|
|
// enabling snapshot and after that re-enable the snapshot again. In this
|
|
// case the snapshot should be rebuilt with latest chain head.
|
|
func TestGappedNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(0)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
|
|
//
|
|
// Expected head header : C10
|
|
// Expected head fast block: C10
|
|
// Expected head block : C10
|
|
// Expected snapshot disk : C10
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &gappedSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 10,
|
|
expHeadHeader: 10,
|
|
expHeadFastBlock: 10,
|
|
expHeadBlock: 10,
|
|
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
|
|
},
|
|
gapped: 2,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests the Geth was running with snapshot enabled and resetHead is applied.
|
|
// In this case the head is rewound to the target(with state available). After
|
|
// that the chain is restarted and the original disk layer is kept.
|
|
func TestSetHeadWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(4)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4
|
|
//
|
|
// Expected head header : C4
|
|
// Expected head fast block: C4
|
|
// Expected head block : C4
|
|
// Expected snapshot disk : G
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &setHeadSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 4,
|
|
expHeadHeader: 4,
|
|
expHeadFastBlock: 4,
|
|
expHeadBlock: 4,
|
|
expSnapshotBottom: 0, // The initial disk layer is built from the genesis
|
|
},
|
|
setHead: 4,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|
|
|
|
// Tests the Geth was running with a complete snapshot and then imports a few
|
|
// more new blocks on top without enabling the snapshot. After the restart,
|
|
// crash happens. Check everything is ok after the restart.
|
|
func TestRecoverSnapshotFromWipingCrash(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(0)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
|
|
//
|
|
// Expected head header : C10
|
|
// Expected head fast block: C10
|
|
// Expected head block : C8
|
|
// Expected snapshot disk : C10
|
|
for _, scheme := range []string{rawdb.HashScheme, rawdb.PathScheme} {
|
|
test := &wipeCrashSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
scheme: scheme,
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 10,
|
|
expHeadHeader: 10,
|
|
expHeadFastBlock: 10,
|
|
expHeadBlock: 10,
|
|
expSnapshotBottom: 10,
|
|
},
|
|
newBlocks: 2,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
}
|