eth, eth/downloader: transition to eth 61
This commit is contained in:
Péter Szilágyi
parent
af51dc4d63
commit
f43c07cb3c
@ -11,8 +11,6 @@ import (
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"strings"
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"time"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/ethash"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/common"
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@ -26,6 +24,7 @@ import (
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/logger/glog"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/discover"
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@ -19,6 +19,11 @@ import (
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"gopkg.in/fatih/set.v0"
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)
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const (
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eth60 = 60 // Constant to check for old protocol support
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eth61 = 61 // Constant to check for new protocol support
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)
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var (
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MinHashFetch = 512 // Minimum amount of hashes to not consider a peer stalling
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MaxHashFetch = 2048 // Amount of hashes to be fetched per retrieval request
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@ -58,6 +63,9 @@ type hashCheckFn func(common.Hash) bool
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// blockRetrievalFn is a callback type for retrieving a block from the local chain.
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type blockRetrievalFn func(common.Hash) *types.Block
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// headRetrievalFn is a callback type for retrieving the head block from the local chain.
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type headRetrievalFn func() *types.Block
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// chainInsertFn is a callback type to insert a batch of blocks into the local chain.
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type chainInsertFn func(types.Blocks) (int, error)
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@ -98,6 +106,7 @@ type Downloader struct {
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// Callbacks
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hasBlock hashCheckFn // Checks if a block is present in the chain
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getBlock blockRetrievalFn // Retrieves a block from the chain
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headBlock headRetrievalFn // Retrieves the head block from the chain
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insertChain chainInsertFn // Injects a batch of blocks into the chain
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dropPeer peerDropFn // Drops a peer for misbehaving
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@ -109,8 +118,9 @@ type Downloader struct {
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// Channels
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newPeerCh chan *peer
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hashCh chan hashPack
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blockCh chan blockPack
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hashCh chan hashPack // Channel receiving inbound hashes
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blockCh chan blockPack // Channel receiving inbound blocks
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processCh chan bool // Channel to signal the block fetcher of new or finished work
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cancelCh chan struct{} // Channel to cancel mid-flight syncs
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cancelLock sync.RWMutex // Lock to protect the cancel channel in delivers
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@ -123,7 +133,7 @@ type Block struct {
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}
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// New creates a new downloader to fetch hashes and blocks from remote peers.
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func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock blockRetrievalFn, insertChain chainInsertFn, dropPeer peerDropFn) *Downloader {
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func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock blockRetrievalFn, headBlock headRetrievalFn, insertChain chainInsertFn, dropPeer peerDropFn) *Downloader {
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// Create the base downloader
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downloader := &Downloader{
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mux: mux,
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@ -131,11 +141,13 @@ func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock blockRetrievalFn, in
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peers: newPeerSet(),
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hasBlock: hasBlock,
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getBlock: getBlock,
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headBlock: headBlock,
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insertChain: insertChain,
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dropPeer: dropPeer,
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newPeerCh: make(chan *peer, 1),
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hashCh: make(chan hashPack, 1),
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blockCh: make(chan blockPack, 1),
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processCh: make(chan bool, 1),
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}
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// Inject all the known bad hashes
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downloader.banned = set.New()
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@ -175,7 +187,7 @@ func (d *Downloader) Synchronising() bool {
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// RegisterPeer injects a new download peer into the set of block source to be
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// used for fetching hashes and blocks from.
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func (d *Downloader) RegisterPeer(id string, version int, head common.Hash, getHashes hashFetcherFn, getBlocks blockFetcherFn) error {
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func (d *Downloader) RegisterPeer(id string, version int, head common.Hash, getRelHashes relativeHashFetcherFn, getAbsHashes absoluteHashFetcherFn, getBlocks blockFetcherFn) error {
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// If the peer wants to send a banned hash, reject
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if d.banned.Has(head) {
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glog.V(logger.Debug).Infoln("Register rejected, head hash banned:", id)
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@ -183,7 +195,7 @@ func (d *Downloader) RegisterPeer(id string, version int, head common.Hash, getH
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}
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// Otherwise try to construct and register the peer
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glog.V(logger.Detail).Infoln("Registering peer", id)
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if err := d.peers.Register(newPeer(id, version, head, getHashes, getBlocks)); err != nil {
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if err := d.peers.Register(newPeer(id, version, head, getRelHashes, getAbsHashes, getBlocks)); err != nil {
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glog.V(logger.Error).Infoln("Register failed:", err)
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return err
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}
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@ -289,13 +301,39 @@ func (d *Downloader) syncWithPeer(p *peer, hash common.Hash) (err error) {
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}
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}()
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glog.V(logger.Debug).Infoln("Synchronizing with the network using:", p.id)
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if err = d.fetchHashes(p, hash); err != nil {
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glog.V(logger.Debug).Infof("Synchronizing with the network using: %s, eth/%d", p.id, p.version)
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switch p.version {
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case eth60:
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// Old eth/60 version, use reverse hash retrieval algorithm
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if err = d.fetchHashes60(p, hash); err != nil {
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return err
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}
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if err = d.fetchBlocks(); err != nil {
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if err = d.fetchBlocks60(); err != nil {
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return err
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}
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case eth61:
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// New eth/61, use forward, concurrent hash and block retrieval algorithm
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number, err := d.findAncestor(p)
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if err != nil {
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return err
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}
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errc := make(chan error, 2)
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go func() { errc <- d.fetchHashes(p, number+1) }()
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go func() { errc <- d.fetchBlocks(number + 1) }()
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// If any fetcher fails, cancel the other
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if err := <-errc; err != nil {
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d.cancel()
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<-errc
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return err
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}
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return <-errc
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default:
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// Something very wrong, stop right here
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glog.V(logger.Error).Infof("Unsupported eth protocol: %d", p.version)
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return errBadPeer
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}
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glog.V(logger.Debug).Infoln("Synchronization completed")
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return nil
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@ -326,10 +364,10 @@ func (d *Downloader) Terminate() {
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d.cancel()
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}
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// fetchHahes starts retrieving hashes backwards from a specific peer and hash,
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// fetchHashes60 starts retrieving hashes backwards from a specific peer and hash,
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// up until it finds a common ancestor. If the source peer times out, alternative
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// ones are tried for continuation.
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func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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func (d *Downloader) fetchHashes60(p *peer, h common.Hash) error {
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var (
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start = time.Now()
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active = p // active peer will help determine the current active peer
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@ -346,12 +384,12 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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<-timeout.C // timeout channel should be initially empty.
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getHashes := func(from common.Hash) {
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go active.getHashes(from)
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go active.getRelHashes(from)
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timeout.Reset(hashTTL)
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}
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// Add the hash to the queue, and start hash retrieval.
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d.queue.Insert([]common.Hash{h})
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d.queue.Insert([]common.Hash{h}, false)
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getHashes(h)
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attempted[p.id] = true
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@ -377,7 +415,7 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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if d.banned.Has(hash) {
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glog.V(logger.Debug).Infof("Peer (%s) sent a known invalid chain", active.id)
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d.queue.Insert(hashPack.hashes[:index+1])
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d.queue.Insert(hashPack.hashes[:index+1], false)
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if err := d.banBlocks(active.id, hash); err != nil {
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glog.V(logger.Debug).Infof("Failed to ban batch of blocks: %v", err)
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}
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@ -395,7 +433,7 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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}
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}
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// Insert all the new hashes, but only continue if got something useful
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inserts := d.queue.Insert(hashPack.hashes)
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inserts := d.queue.Insert(hashPack.hashes, false)
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if len(inserts) == 0 && !done {
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glog.V(logger.Debug).Infof("Peer (%s) responded with stale hashes", active.id)
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return errBadPeer
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@ -422,9 +460,9 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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continue
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}
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// We're done, prepare the download cache and proceed pulling the blocks
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offset := 0
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offset := uint64(0)
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if block := d.getBlock(head); block != nil {
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offset = int(block.NumberU64() + 1)
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offset = block.NumberU64() + 1
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}
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d.queue.Prepare(offset)
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finished = true
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@ -481,10 +519,10 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
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return nil
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}
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// fetchBlocks iteratively downloads the entire schedules block-chain, taking
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// fetchBlocks60 iteratively downloads the entire schedules block-chain, taking
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// any available peers, reserving a chunk of blocks for each, wait for delivery
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// and periodically checking for timeouts.
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func (d *Downloader) fetchBlocks() error {
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func (d *Downloader) fetchBlocks60() error {
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glog.V(logger.Debug).Infoln("Downloading", d.queue.Pending(), "block(s)")
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start := time.Now()
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@ -619,6 +657,323 @@ out:
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return nil
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}
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// findAncestor tries to locate the common ancestor block of the local chain and
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// a remote peers blockchain. In the general case when our node was in sync and
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// on the correct chain, checking the top N blocks should already get us a match.
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// In the rare scenario when we ended up on a long soft fork (i.e. none of the
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// head blocks match), we do a binary search to find the common ancestor.
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func (d *Downloader) findAncestor(p *peer) (uint64, error) {
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glog.V(logger.Debug).Infof("%v: looking for common ancestor", p)
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// Request out head blocks to short circuit ancestor location
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head := d.headBlock().NumberU64()
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from := int64(head) - int64(MaxHashFetch)
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if from < 0 {
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from = 0
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}
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go p.getAbsHashes(uint64(from), MaxHashFetch)
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// Wait for the remote response to the head fetch
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number, hash := uint64(0), common.Hash{}
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timeout := time.After(hashTTL)
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for finished := false; !finished; {
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select {
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case <-d.cancelCh:
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return 0, errCancelHashFetch
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case hashPack := <-d.hashCh:
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// Discard anything not from the origin peer
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if hashPack.peerId != p.id {
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glog.V(logger.Debug).Infof("Received hashes from incorrect peer(%s)", hashPack.peerId)
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break
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}
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// Make sure the peer actually gave something valid
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hashes := hashPack.hashes
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if len(hashes) == 0 {
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glog.V(logger.Debug).Infof("%v: empty head hash set", p)
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return 0, errEmptyHashSet
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}
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// Check if a common ancestor was found
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finished = true
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for i := len(hashes) - 1; i >= 0; i-- {
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if d.hasBlock(hashes[i]) {
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number, hash = uint64(from)+uint64(i), hashes[i]
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break
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}
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}
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case <-d.blockCh:
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// Out of bounds blocks received, ignore them
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case <-timeout:
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glog.V(logger.Debug).Infof("%v: head hash timeout", p)
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return 0, errTimeout
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}
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}
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// If the head fetch already found an ancestor, return
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if !common.EmptyHash(hash) {
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glog.V(logger.Debug).Infof("%v: common ancestor: #%d [%x]", p, number, hash[:4])
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return number, nil
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}
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// Ancestor not found, we need to binary search over our chain
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start, end := uint64(0), head
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for start+1 < end {
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// Split our chain interval in two, and request the hash to cross check
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check := (start + end) / 2
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timeout := time.After(hashTTL)
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go p.getAbsHashes(uint64(check), 1)
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// Wait until a reply arrives to this request
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for arrived := false; !arrived; {
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select {
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case <-d.cancelCh:
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return 0, errCancelHashFetch
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case hashPack := <-d.hashCh:
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// Discard anything not from the origin peer
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if hashPack.peerId != p.id {
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glog.V(logger.Debug).Infof("Received hashes from incorrect peer(%s)", hashPack.peerId)
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break
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}
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// Make sure the peer actually gave something valid
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hashes := hashPack.hashes
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if len(hashes) != 1 {
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glog.V(logger.Debug).Infof("%v: invalid search hash set (%d)", p, len(hashes))
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return 0, errBadPeer
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}
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arrived = true
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// Modify the search interval based on the response
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block := d.getBlock(hashes[0])
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if block == nil {
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end = check
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break
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}
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if block.NumberU64() != check {
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glog.V(logger.Debug).Infof("%v: non requested hash #%d [%x], instead of #%d", p, block.NumberU64(), block.Hash().Bytes()[:4], check)
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return 0, errBadPeer
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}
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start = check
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case <-d.blockCh:
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// Out of bounds blocks received, ignore them
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case <-timeout:
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glog.V(logger.Debug).Infof("%v: search hash timeout", p)
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return 0, errTimeout
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}
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}
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}
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return start, nil
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}
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// fetchHashes keeps retrieving hashes from the requested number, until no more
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// are returned, potentially throttling on the way.
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func (d *Downloader) fetchHashes(p *peer, from uint64) error {
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glog.V(logger.Debug).Infof("%v: downloading hashes from #%d", p, from)
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// Create a timeout timer, and the associated hash fetcher
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timeout := time.NewTimer(0) // timer to dump a non-responsive active peer
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<-timeout.C // timeout channel should be initially empty
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defer timeout.Stop()
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getHashes := func(from uint64) {
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go p.getAbsHashes(from, MaxHashFetch)
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timeout.Reset(hashTTL)
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}
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// Start pulling hashes, until all are exhausted
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getHashes(from)
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for {
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select {
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case <-d.cancelCh:
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return errCancelHashFetch
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case hashPack := <-d.hashCh:
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// Make sure the active peer is giving us the hashes
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if hashPack.peerId != p.id {
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glog.V(logger.Debug).Infof("Received hashes from incorrect peer(%s)", hashPack.peerId)
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break
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}
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timeout.Stop()
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// If no more hashes are inbound, notify the block fetcher and return
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if len(hashPack.hashes) == 0 {
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glog.V(logger.Debug).Infof("%v: no available hashes", p)
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select {
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case d.processCh <- false:
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case <-d.cancelCh:
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}
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return nil
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}
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// Otherwise insert all the new hashes, aborting in case of junk
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inserts := d.queue.Insert(hashPack.hashes, true)
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if len(inserts) != len(hashPack.hashes) {
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glog.V(logger.Debug).Infof("%v: stale hashes", p)
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return errBadPeer
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}
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// Notify the block fetcher of new hashes, and continue fetching
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select {
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case d.processCh <- true:
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default:
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}
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from += uint64(len(hashPack.hashes))
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getHashes(from)
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case <-timeout.C:
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glog.V(logger.Debug).Infof("%v: hash request timed out", p)
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return errTimeout
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}
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}
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}
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// fetchBlocks iteratively downloads the scheduled hashes, taking any available
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// peers, reserving a chunk of blocks for each, waiting for delivery and also
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// periodically checking for timeouts.
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func (d *Downloader) fetchBlocks(from uint64) error {
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glog.V(logger.Debug).Infof("Downloading blocks from #%d", from)
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defer glog.V(logger.Debug).Infof("Block download terminated")
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// Create a timeout timer for scheduling expiration tasks
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ticker := time.NewTicker(100 * time.Millisecond)
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defer ticker.Stop()
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update := make(chan struct{}, 1)
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// Prepare the queue and fetch blocks until the hash fetcher's done
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d.queue.Prepare(from)
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finished := false
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for {
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select {
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case <-d.cancelCh:
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return errCancelBlockFetch
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case blockPack := <-d.blockCh:
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// If the peer was previously banned and failed to deliver it's pack
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// in a reasonable time frame, ignore it's message.
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if peer := d.peers.Peer(blockPack.peerId); peer != nil {
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// Deliver the received chunk of blocks, and demote in case of errors
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err := d.queue.Deliver(blockPack.peerId, blockPack.blocks)
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switch err {
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case nil:
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// If no blocks were delivered, demote the peer (need the delivery above)
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if len(blockPack.blocks) == 0 {
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peer.Demote()
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peer.SetIdle()
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glog.V(logger.Detail).Infof("%s: no blocks delivered", peer)
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break
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}
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// All was successful, promote the peer and potentially start processing
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peer.Promote()
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peer.SetIdle()
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glog.V(logger.Detail).Infof("%s: delivered %d blocks", peer, len(blockPack.blocks))
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go d.process()
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case errInvalidChain:
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// The hash chain is invalid (blocks are not ordered properly), abort
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return err
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case errNoFetchesPending:
|
||||
// Peer probably timed out with its delivery but came through
|
||||
// in the end, demote, but allow to to pull from this peer.
|
||||
peer.Demote()
|
||||
peer.SetIdle()
|
||||
glog.V(logger.Detail).Infof("%s: out of bound delivery", peer)
|
||||
|
||||
case errStaleDelivery:
|
||||
// Delivered something completely else than requested, usually
|
||||
// caused by a timeout and delivery during a new sync cycle.
|
||||
// Don't set it to idle as the original request should still be
|
||||
// in flight.
|
||||
peer.Demote()
|
||||
glog.V(logger.Detail).Infof("%s: stale delivery", peer)
|
||||
|
||||
default:
|
||||
// Peer did something semi-useful, demote but keep it around
|
||||
peer.Demote()
|
||||
peer.SetIdle()
|
||||
glog.V(logger.Detail).Infof("%s: delivery partially failed: %v", peer, err)
|
||||
go d.process()
|
||||
}
|
||||
}
|
||||
// Blocks arrived, try to update the progress
|
||||
select {
|
||||
case update <- struct{}{}:
|
||||
default:
|
||||
}
|
||||
|
||||
case cont := <-d.processCh:
|
||||
// The hash fetcher sent a continuation flag, check if it's done
|
||||
if !cont {
|
||||
finished = true
|
||||
}
|
||||
// Hashes 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 block request timeouts and demote the responsible peers
|
||||
for _, pid := range d.queue.Expire(blockHardTTL) {
|
||||
if peer := d.peers.Peer(pid); peer != nil {
|
||||
peer.Demote()
|
||||
glog.V(logger.Detail).Infof("%s: block delivery timeout", peer)
|
||||
}
|
||||
}
|
||||
// If there's noting more to fetch, wait or terminate
|
||||
if d.queue.Pending() == 0 {
|
||||
if d.queue.InFlight() == 0 && finished {
|
||||
glog.V(logger.Debug).Infof("Block fetching completed")
|
||||
return nil
|
||||
}
|
||||
break
|
||||
}
|
||||
// Send a download request to all idle peers, until throttled
|
||||
for _, peer := range d.peers.IdlePeers() {
|
||||
// Short circuit if throttling activated
|
||||
if d.queue.Throttle() {
|
||||
break
|
||||
}
|
||||
// Reserve a chunk of hashes for a peer. A nil can mean either that
|
||||
// no more hashes are available, or that the peer is known not to
|
||||
// have them.
|
||||
request := d.queue.Reserve(peer, peer.Capacity())
|
||||
if request == nil {
|
||||
continue
|
||||
}
|
||||
if glog.V(logger.Detail) {
|
||||
glog.Infof("%s: requesting %d blocks", peer, len(request.Hashes))
|
||||
}
|
||||
// Fetch the chunk and make sure any errors return the hashes to the queue
|
||||
if err := peer.Fetch(request); err != nil {
|
||||
glog.V(logger.Error).Infof("%v: fetch failed, rescheduling", peer)
|
||||
d.queue.Cancel(request)
|
||||
}
|
||||
}
|
||||
// Make sure that we have peers available for fetching. If all peers have been tried
|
||||
// and all failed throw an error
|
||||
if !d.queue.Throttle() && d.queue.InFlight() == 0 {
|
||||
return errPeersUnavailable
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// banBlocks retrieves a batch of blocks from a peer feeding us invalid hashes,
|
||||
// and bans the head of the retrieved batch.
|
||||
//
|
||||
|
||||
@ -16,17 +16,12 @@ import (
|
||||
"github.com/ethereum/go-ethereum/event"
|
||||
)
|
||||
|
||||
const (
|
||||
eth60 = 60
|
||||
eth61 = 61
|
||||
)
|
||||
|
||||
var (
|
||||
testdb, _ = ethdb.NewMemDatabase()
|
||||
genesis = core.GenesisBlockForTesting(testdb, common.Address{}, big.NewInt(0))
|
||||
)
|
||||
|
||||
// makeChain creates a chain of n blocks starting at and including
|
||||
// makeChain creates a chain of n blocks starting at but not including
|
||||
// parent. the returned hash chain is ordered head->parent.
|
||||
func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common.Hash]*types.Block) {
|
||||
blocks := core.GenerateChain(parent, testdb, n, func(i int, gen *core.BlockGen) {
|
||||
@ -47,7 +42,7 @@ func makeChain(n int, seed byte, parent *types.Block) ([]common.Hash, map[common
|
||||
// h2[:f] are different but have a common suffix of length n-f.
|
||||
func makeChainFork(n, f int, parent *types.Block) (h1, h2 []common.Hash, b1, b2 map[common.Hash]*types.Block) {
|
||||
// Create the common suffix.
|
||||
h, b := makeChain(n-f-1, 0, parent)
|
||||
h, b := makeChain(n-f, 0, parent)
|
||||
// Create the forks.
|
||||
h1, b1 = makeChain(f, 1, b[h[0]])
|
||||
h1 = append(h1, h[1:]...)
|
||||
@ -80,7 +75,7 @@ func newTester() *downloadTester {
|
||||
peerHashes: make(map[string][]common.Hash),
|
||||
peerBlocks: make(map[string]map[common.Hash]*types.Block),
|
||||
}
|
||||
tester.downloader = New(new(event.TypeMux), tester.hasBlock, tester.getBlock, tester.insertChain, tester.dropPeer)
|
||||
tester.downloader = New(new(event.TypeMux), tester.hasBlock, tester.getBlock, tester.headBlock, tester.insertChain, tester.dropPeer)
|
||||
|
||||
return tester
|
||||
}
|
||||
@ -104,6 +99,11 @@ func (dl *downloadTester) getBlock(hash common.Hash) *types.Block {
|
||||
return dl.ownBlocks[hash]
|
||||
}
|
||||
|
||||
// headBlock retrieves the current head block from the canonical chain.
|
||||
func (dl *downloadTester) headBlock() *types.Block {
|
||||
return dl.getBlock(dl.ownHashes[len(dl.ownHashes)-1])
|
||||
}
|
||||
|
||||
// insertChain injects a new batch of blocks into the simulated chain.
|
||||
func (dl *downloadTester) insertChain(blocks types.Blocks) (int, error) {
|
||||
for i, block := range blocks {
|
||||
@ -125,7 +125,7 @@ func (dl *downloadTester) newPeer(id string, version int, hashes []common.Hash,
|
||||
// specific delay time on processing the network packets sent to it, simulating
|
||||
// potentially slow network IO.
|
||||
func (dl *downloadTester) newSlowPeer(id string, version int, hashes []common.Hash, blocks map[common.Hash]*types.Block, delay time.Duration) error {
|
||||
err := dl.downloader.RegisterPeer(id, version, hashes[0], dl.peerGetHashesFn(id, delay), dl.peerGetBlocksFn(id, delay))
|
||||
err := dl.downloader.RegisterPeer(id, version, hashes[0], dl.peerGetRelHashesFn(id, delay), dl.peerGetAbsHashesFn(id, version, delay), dl.peerGetBlocksFn(id, delay))
|
||||
if err == nil {
|
||||
// Assign the owned hashes and blocks to the peer (deep copy)
|
||||
dl.peerHashes[id] = make([]common.Hash, len(hashes))
|
||||
@ -146,10 +146,10 @@ func (dl *downloadTester) dropPeer(id string) {
|
||||
dl.downloader.UnregisterPeer(id)
|
||||
}
|
||||
|
||||
// peerGetBlocksFn constructs a getHashes function associated with a particular
|
||||
// peerGetRelHashesFn constructs a GetHashes function associated with a specific
|
||||
// peer in the download tester. The returned function can be used to retrieve
|
||||
// batches of hashes from the particularly requested peer.
|
||||
func (dl *downloadTester) peerGetHashesFn(id string, delay time.Duration) func(head common.Hash) error {
|
||||
func (dl *downloadTester) peerGetRelHashesFn(id string, delay time.Duration) func(head common.Hash) error {
|
||||
return func(head common.Hash) error {
|
||||
time.Sleep(delay)
|
||||
|
||||
@ -179,13 +179,43 @@ func (dl *downloadTester) peerGetHashesFn(id string, delay time.Duration) func(h
|
||||
}
|
||||
}
|
||||
|
||||
// peerGetAbsHashesFn constructs a GetHashesFromNumber function associated with
|
||||
// a particular peer in the download tester. The returned function can be used to
|
||||
// retrieve batches of hashes from the particularly requested peer.
|
||||
func (dl *downloadTester) peerGetAbsHashesFn(id string, version int, delay time.Duration) func(uint64, int) error {
|
||||
// If the simulated peer runs eth/60, this message is not supported
|
||||
if version == eth60 {
|
||||
return func(uint64, int) error { return nil }
|
||||
}
|
||||
// Otherwise create a method to request the blocks by number
|
||||
return func(head uint64, count int) error {
|
||||
time.Sleep(delay)
|
||||
|
||||
limit := count
|
||||
if dl.maxHashFetch > 0 {
|
||||
limit = dl.maxHashFetch
|
||||
}
|
||||
// Gather the next batch of hashes
|
||||
hashes := dl.peerHashes[id]
|
||||
result := make([]common.Hash, 0, limit)
|
||||
for i := 0; i < limit && len(hashes)-int(head)-1-i >= 0; i++ {
|
||||
result = append(result, hashes[len(hashes)-int(head)-1-i])
|
||||
}
|
||||
// Delay delivery a bit to allow attacks to unfold
|
||||
go func() {
|
||||
time.Sleep(time.Millisecond)
|
||||
dl.downloader.DeliverHashes(id, result)
|
||||
}()
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// peerGetBlocksFn constructs a getBlocks function associated with a particular
|
||||
// peer in the download tester. The returned function can be used to retrieve
|
||||
// batches of blocks from the particularly requested peer.
|
||||
func (dl *downloadTester) peerGetBlocksFn(id string, delay time.Duration) func([]common.Hash) error {
|
||||
return func(hashes []common.Hash) error {
|
||||
time.Sleep(delay)
|
||||
|
||||
blocks := dl.peerBlocks[id]
|
||||
result := make([]*types.Block, 0, len(hashes))
|
||||
for _, hash := range hashes {
|
||||
@ -200,7 +230,7 @@ func (dl *downloadTester) peerGetBlocksFn(id string, delay time.Duration) func([
|
||||
}
|
||||
|
||||
// Tests that simple synchronization, without throttling from a good peer works.
|
||||
func TestSynchronisation(t *testing.T) {
|
||||
func TestSynchronisation60(t *testing.T) {
|
||||
// Create a small enough block chain to download and the tester
|
||||
targetBlocks := blockCacheLimit - 15
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
@ -217,48 +247,29 @@ func TestSynchronisation(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that an inactive downloader will not accept incoming hashes and blocks.
|
||||
func TestInactiveDownloader(t *testing.T) {
|
||||
tester := newTester()
|
||||
|
||||
// Check that neither hashes nor blocks are accepted
|
||||
if err := tester.downloader.DeliverHashes("bad peer", []common.Hash{}); err != errNoSyncActive {
|
||||
t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive)
|
||||
}
|
||||
if err := tester.downloader.DeliverBlocks("bad peer", []*types.Block{}); err != errNoSyncActive {
|
||||
t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that a canceled download wipes all previously accumulated state.
|
||||
func TestCancel(t *testing.T) {
|
||||
// Create a small enough block chain to download and the tester
|
||||
// Tests that simple synchronization against a canonical chain works correctly.
|
||||
// In this test common ancestor lookup should be short circuited and not require
|
||||
// binary searching.
|
||||
func TestCanonicalSynchronisation(t *testing.T) {
|
||||
// Create a small enough block chain to download
|
||||
targetBlocks := blockCacheLimit - 15
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
|
||||
tester := newTester()
|
||||
tester.newPeer("peer", eth60, hashes, blocks)
|
||||
tester.newPeer("peer", eth61, hashes, blocks)
|
||||
|
||||
// Make sure canceling works with a pristine downloader
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount := tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
}
|
||||
// Synchronise with the peer, but cancel afterwards
|
||||
// Synchronise with the peer and make sure all blocks were retrieved
|
||||
if err := tester.sync("peer"); err != nil {
|
||||
t.Fatalf("failed to synchronise blocks: %v", err)
|
||||
}
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount = tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
if imported := len(tester.ownBlocks); imported != targetBlocks+1 {
|
||||
t.Fatalf("synchronised block mismatch: have %v, want %v", imported, targetBlocks+1)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that if a large batch of blocks are being downloaded, it is throttled
|
||||
// until the cached blocks are retrieved.
|
||||
func TestThrottling(t *testing.T) {
|
||||
func TestThrottling60(t *testing.T) {
|
||||
// Create a long block chain to download and the tester
|
||||
targetBlocks := 8 * blockCacheLimit
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
@ -312,6 +323,158 @@ func TestThrottling(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that if a large batch of blocks are being downloaded, it is throttled
|
||||
// until the cached blocks are retrieved.
|
||||
func TestThrottling(t *testing.T) {
|
||||
// Create a long block chain to download and the tester
|
||||
targetBlocks := 8 * blockCacheLimit
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
|
||||
tester := newTester()
|
||||
tester.newPeer("peer", eth61, hashes, blocks)
|
||||
|
||||
// Wrap the importer to allow stepping
|
||||
done := make(chan int)
|
||||
tester.downloader.insertChain = func(blocks types.Blocks) (int, error) {
|
||||
n, err := tester.insertChain(blocks)
|
||||
done <- n
|
||||
return n, err
|
||||
}
|
||||
// Start a synchronisation concurrently
|
||||
errc := make(chan error)
|
||||
go func() {
|
||||
errc <- tester.sync("peer")
|
||||
}()
|
||||
// Iteratively take some blocks, always checking the retrieval count
|
||||
for len(tester.ownBlocks) < targetBlocks+1 {
|
||||
// Wait a bit for sync to throttle itself
|
||||
var cached int
|
||||
for start := time.Now(); time.Since(start) < 3*time.Second; {
|
||||
time.Sleep(25 * time.Millisecond)
|
||||
|
||||
cached = len(tester.downloader.queue.blockPool)
|
||||
if cached == blockCacheLimit || len(tester.ownBlocks)+cached == targetBlocks+1 {
|
||||
break
|
||||
}
|
||||
}
|
||||
// Make sure we filled up the cache, then exhaust it
|
||||
time.Sleep(25 * time.Millisecond) // give it a chance to screw up
|
||||
if cached != blockCacheLimit && len(tester.ownBlocks)+cached < targetBlocks+1 {
|
||||
t.Fatalf("block count mismatch: have %v, want %v", cached, blockCacheLimit)
|
||||
}
|
||||
<-done // finish previous blocking import
|
||||
for cached > maxBlockProcess {
|
||||
cached -= <-done
|
||||
}
|
||||
time.Sleep(25 * time.Millisecond) // yield to the insertion
|
||||
}
|
||||
<-done // finish the last blocking import
|
||||
|
||||
// Check that we haven't pulled more blocks than available
|
||||
if len(tester.ownBlocks) > targetBlocks+1 {
|
||||
t.Fatalf("target block count mismatch: have %v, want %v", len(tester.ownBlocks), targetBlocks+1)
|
||||
}
|
||||
if err := <-errc; err != nil {
|
||||
t.Fatalf("block synchronization failed: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// 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 TestForkedSynchronisation(t *testing.T) {
|
||||
// Create a long enough forked chain
|
||||
common, fork := MaxHashFetch, 2*MaxHashFetch
|
||||
hashesA, hashesB, blocksA, blocksB := makeChainFork(common+fork, fork, genesis)
|
||||
|
||||
tester := newTester()
|
||||
tester.newPeer("fork A", eth61, hashesA, blocksA)
|
||||
tester.newPeer("fork B", eth61, hashesB, blocksB)
|
||||
|
||||
// Synchronise with the peer and make sure all blocks were retrieved
|
||||
if err := tester.sync("fork A"); err != nil {
|
||||
t.Fatalf("failed to synchronise blocks: %v", err)
|
||||
}
|
||||
if imported := len(tester.ownBlocks); imported != common+fork+1 {
|
||||
t.Fatalf("synchronised block mismatch: have %v, want %v", imported, common+fork+1)
|
||||
}
|
||||
// Synchronise with the second peer and make sure that fork is pulled too
|
||||
if err := tester.sync("fork B"); err != nil {
|
||||
t.Fatalf("failed to synchronise blocks: %v", err)
|
||||
}
|
||||
if imported := len(tester.ownBlocks); imported != common+2*fork+1 {
|
||||
t.Fatalf("synchronised block mismatch: have %v, want %v", imported, common+2*fork+1)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that an inactive downloader will not accept incoming hashes and blocks.
|
||||
func TestInactiveDownloader(t *testing.T) {
|
||||
tester := newTester()
|
||||
|
||||
// Check that neither hashes nor blocks are accepted
|
||||
if err := tester.downloader.DeliverHashes("bad peer", []common.Hash{}); err != errNoSyncActive {
|
||||
t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive)
|
||||
}
|
||||
if err := tester.downloader.DeliverBlocks("bad peer", []*types.Block{}); err != errNoSyncActive {
|
||||
t.Errorf("error mismatch: have %v, want %v", err, errNoSyncActive)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that a canceled download wipes all previously accumulated state.
|
||||
func TestCancel60(t *testing.T) {
|
||||
// Create a small enough block chain to download and the tester
|
||||
targetBlocks := blockCacheLimit - 15
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
|
||||
tester := newTester()
|
||||
tester.newPeer("peer", eth60, hashes, blocks)
|
||||
|
||||
// Make sure canceling works with a pristine downloader
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount := tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
}
|
||||
// Synchronise with the peer, but cancel afterwards
|
||||
if err := tester.sync("peer"); err != nil {
|
||||
t.Fatalf("failed to synchronise blocks: %v", err)
|
||||
}
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount = tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that a canceled download wipes all previously accumulated state.
|
||||
func TestCancel(t *testing.T) {
|
||||
// Create a small enough block chain to download and the tester
|
||||
targetBlocks := blockCacheLimit - 15
|
||||
if targetBlocks >= MaxHashFetch {
|
||||
targetBlocks = MaxHashFetch - 15
|
||||
}
|
||||
hashes, blocks := makeChain(targetBlocks, 0, genesis)
|
||||
|
||||
tester := newTester()
|
||||
tester.newPeer("peer", eth61, hashes, blocks)
|
||||
|
||||
// Make sure canceling works with a pristine downloader
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount := tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
}
|
||||
// Synchronise with the peer, but cancel afterwards
|
||||
if err := tester.sync("peer"); err != nil {
|
||||
t.Fatalf("failed to synchronise blocks: %v", err)
|
||||
}
|
||||
tester.downloader.cancel()
|
||||
hashCount, blockCount = tester.downloader.queue.Size()
|
||||
if hashCount > 0 || blockCount > 0 {
|
||||
t.Errorf("block or hash count mismatch: %d hashes, %d blocks, want 0", hashCount, blockCount)
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that synchronisation from multiple peers works as intended (multi thread sanity test).
|
||||
func TestMultiSynchronisation(t *testing.T) {
|
||||
// Create various peers with various parts of the chain
|
||||
|
||||
@ -15,7 +15,8 @@ import (
|
||||
"gopkg.in/fatih/set.v0"
|
||||
)
|
||||
|
||||
type hashFetcherFn func(common.Hash) error
|
||||
type relativeHashFetcherFn func(common.Hash) error
|
||||
type absoluteHashFetcherFn func(uint64, int) error
|
||||
type blockFetcherFn func([]common.Hash) error
|
||||
|
||||
var (
|
||||
@ -37,20 +38,22 @@ type peer struct {
|
||||
|
||||
ignored *set.Set // Set of hashes not to request (didn't have previously)
|
||||
|
||||
getHashes hashFetcherFn // Method to retrieve a batch of hashes (mockable for testing)
|
||||
getBlocks blockFetcherFn // Method to retrieve a batch of blocks (mockable for testing)
|
||||
getRelHashes relativeHashFetcherFn // Method to retrieve a batch of hashes from an origin hash
|
||||
getAbsHashes absoluteHashFetcherFn // Method to retrieve a batch of hashes from an absolute position
|
||||
getBlocks blockFetcherFn // Method to retrieve a batch of blocks
|
||||
|
||||
version int // Eth protocol version number to switch strategies
|
||||
}
|
||||
|
||||
// newPeer create a new downloader peer, with specific hash and block retrieval
|
||||
// mechanisms.
|
||||
func newPeer(id string, version int, head common.Hash, getHashes hashFetcherFn, getBlocks blockFetcherFn) *peer {
|
||||
func newPeer(id string, version int, head common.Hash, getRelHashes relativeHashFetcherFn, getAbsHashes absoluteHashFetcherFn, getBlocks blockFetcherFn) *peer {
|
||||
return &peer{
|
||||
id: id,
|
||||
head: head,
|
||||
capacity: 1,
|
||||
getHashes: getHashes,
|
||||
getRelHashes: getRelHashes,
|
||||
getAbsHashes: getAbsHashes,
|
||||
getBlocks: getBlocks,
|
||||
ignored: set.New(),
|
||||
version: version,
|
||||
|
||||
@ -40,9 +40,9 @@ type queue struct {
|
||||
|
||||
pendPool map[string]*fetchRequest // Currently pending block retrieval operations
|
||||
|
||||
blockPool map[common.Hash]int // Hash-set of the downloaded data blocks, mapping to cache indexes
|
||||
blockPool map[common.Hash]uint64 // Hash-set of the downloaded data blocks, mapping to cache indexes
|
||||
blockCache []*Block // Downloaded but not yet delivered blocks
|
||||
blockOffset int // Offset of the first cached block in the block-chain
|
||||
blockOffset uint64 // Offset of the first cached block in the block-chain
|
||||
|
||||
lock sync.RWMutex
|
||||
}
|
||||
@ -53,7 +53,7 @@ func newQueue() *queue {
|
||||
hashPool: make(map[common.Hash]int),
|
||||
hashQueue: prque.New(),
|
||||
pendPool: make(map[string]*fetchRequest),
|
||||
blockPool: make(map[common.Hash]int),
|
||||
blockPool: make(map[common.Hash]uint64),
|
||||
blockCache: make([]*Block, blockCacheLimit),
|
||||
}
|
||||
}
|
||||
@ -69,7 +69,7 @@ func (q *queue) Reset() {
|
||||
|
||||
q.pendPool = make(map[string]*fetchRequest)
|
||||
|
||||
q.blockPool = make(map[common.Hash]int)
|
||||
q.blockPool = make(map[common.Hash]uint64)
|
||||
q.blockOffset = 0
|
||||
q.blockCache = make([]*Block, blockCacheLimit)
|
||||
}
|
||||
@ -130,7 +130,7 @@ func (q *queue) Has(hash common.Hash) bool {
|
||||
|
||||
// Insert adds a set of hashes for the download queue for scheduling, returning
|
||||
// the new hashes encountered.
|
||||
func (q *queue) Insert(hashes []common.Hash) []common.Hash {
|
||||
func (q *queue) Insert(hashes []common.Hash, fifo bool) []common.Hash {
|
||||
q.lock.Lock()
|
||||
defer q.lock.Unlock()
|
||||
|
||||
@ -147,8 +147,12 @@ func (q *queue) Insert(hashes []common.Hash) []common.Hash {
|
||||
inserts = append(inserts, hash)
|
||||
|
||||
q.hashPool[hash] = q.hashCounter
|
||||
if fifo {
|
||||
q.hashQueue.Push(hash, -float32(q.hashCounter)) // Lowest gets schedules first
|
||||
} else {
|
||||
q.hashQueue.Push(hash, float32(q.hashCounter)) // Highest gets schedules first
|
||||
}
|
||||
}
|
||||
return inserts
|
||||
}
|
||||
|
||||
@ -175,7 +179,7 @@ func (q *queue) GetBlock(hash common.Hash) *Block {
|
||||
return nil
|
||||
}
|
||||
// Return the block if it's still available in the cache
|
||||
if q.blockOffset <= index && index < q.blockOffset+len(q.blockCache) {
|
||||
if q.blockOffset <= index && index < q.blockOffset+uint64(len(q.blockCache)) {
|
||||
return q.blockCache[index-q.blockOffset]
|
||||
}
|
||||
return nil
|
||||
@ -202,7 +206,7 @@ func (q *queue) TakeBlocks() []*Block {
|
||||
for k, n := len(q.blockCache)-len(blocks), len(q.blockCache); k < n; k++ {
|
||||
q.blockCache[k] = nil
|
||||
}
|
||||
q.blockOffset += len(blocks)
|
||||
q.blockOffset += uint64(len(blocks))
|
||||
|
||||
return blocks
|
||||
}
|
||||
@ -318,7 +322,7 @@ func (q *queue) Deliver(id string, blocks []*types.Block) (err error) {
|
||||
continue
|
||||
}
|
||||
// If a requested block falls out of the range, the hash chain is invalid
|
||||
index := int(block.NumberU64()) - q.blockOffset
|
||||
index := int(int64(block.NumberU64()) - int64(q.blockOffset))
|
||||
if index >= len(q.blockCache) || index < 0 {
|
||||
return errInvalidChain
|
||||
}
|
||||
@ -329,7 +333,7 @@ func (q *queue) Deliver(id string, blocks []*types.Block) (err error) {
|
||||
}
|
||||
delete(request.Hashes, hash)
|
||||
delete(q.hashPool, hash)
|
||||
q.blockPool[hash] = int(block.NumberU64())
|
||||
q.blockPool[hash] = block.NumberU64()
|
||||
}
|
||||
// Return all failed or missing fetches to the queue
|
||||
for hash, index := range request.Hashes {
|
||||
@ -346,7 +350,7 @@ func (q *queue) Deliver(id string, blocks []*types.Block) (err error) {
|
||||
}
|
||||
|
||||
// Prepare configures the block cache offset to allow accepting inbound blocks.
|
||||
func (q *queue) Prepare(offset int) {
|
||||
func (q *queue) Prepare(offset uint64) {
|
||||
q.lock.Lock()
|
||||
defer q.lock.Unlock()
|
||||
|
||||
|
||||
@ -96,7 +96,7 @@ func NewProtocolManager(networkId int, mux *event.TypeMux, txpool txPool, pow po
|
||||
}
|
||||
}
|
||||
// Construct the different synchronisation mechanisms
|
||||
manager.downloader = downloader.New(manager.eventMux, manager.chainman.HasBlock, manager.chainman.GetBlock, manager.chainman.InsertChain, manager.removePeer)
|
||||
manager.downloader = downloader.New(manager.eventMux, manager.chainman.HasBlock, manager.chainman.GetBlock, manager.chainman.CurrentBlock, manager.chainman.InsertChain, manager.removePeer)
|
||||
|
||||
validator := func(block *types.Block, parent *types.Block) error {
|
||||
return core.ValidateHeader(pow, block.Header(), parent, true)
|
||||
@ -181,7 +181,7 @@ func (pm *ProtocolManager) handle(p *peer) error {
|
||||
defer pm.removePeer(p.id)
|
||||
|
||||
// Register the peer in the downloader. If the downloader considers it banned, we disconnect
|
||||
if err := pm.downloader.RegisterPeer(p.id, p.version, p.Head(), p.RequestHashes, p.RequestBlocks); err != nil {
|
||||
if err := pm.downloader.RegisterPeer(p.id, p.version, p.Head(), p.RequestHashes, p.RequestHashesFromNumber, p.RequestBlocks); err != nil {
|
||||
return err
|
||||
}
|
||||
// Propagate existing transactions. new transactions appearing
|
||||
@ -214,50 +214,50 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
|
||||
// Handle the message depending on its contents
|
||||
switch msg.Code {
|
||||
case StatusMsg:
|
||||
// Status messages should never arrive after the handshake
|
||||
return errResp(ErrExtraStatusMsg, "uncontrolled status message")
|
||||
|
||||
case TxMsg:
|
||||
// Transactions arrived, parse all of them and deliver to the pool
|
||||
var txs []*types.Transaction
|
||||
if err := msg.Decode(&txs); err != nil {
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
propTxnInPacketsMeter.Mark(1)
|
||||
for i, tx := range txs {
|
||||
// Validate and mark the remote transaction
|
||||
if tx == nil {
|
||||
return errResp(ErrDecode, "transaction %d is nil", i)
|
||||
}
|
||||
p.MarkTransaction(tx.Hash())
|
||||
|
||||
// Log it's arrival for later analysis
|
||||
propTxnInTrafficMeter.Mark(tx.Size().Int64())
|
||||
jsonlogger.LogJson(&logger.EthTxReceived{
|
||||
TxHash: tx.Hash().Hex(),
|
||||
RemoteId: p.ID().String(),
|
||||
})
|
||||
}
|
||||
pm.txpool.AddTransactions(txs)
|
||||
|
||||
case GetBlockHashesMsg:
|
||||
// Retrieve the number of hashes to return and from which origin hash
|
||||
var request getBlockHashesData
|
||||
if err := msg.Decode(&request); err != nil {
|
||||
return errResp(ErrDecode, "->msg %v: %v", msg, err)
|
||||
return errResp(ErrDecode, "%v: %v", msg, err)
|
||||
}
|
||||
|
||||
if request.Amount > uint64(downloader.MaxHashFetch) {
|
||||
request.Amount = uint64(downloader.MaxHashFetch)
|
||||
}
|
||||
|
||||
// Retrieve the hashes from the block chain and return them
|
||||
hashes := pm.chainman.GetBlockHashesFromHash(request.Hash, request.Amount)
|
||||
|
||||
if glog.V(logger.Debug) {
|
||||
if len(hashes) == 0 {
|
||||
glog.Infof("invalid block hash %x", request.Hash.Bytes()[:4])
|
||||
}
|
||||
glog.V(logger.Debug).Infof("invalid block hash %x", request.Hash.Bytes()[:4])
|
||||
}
|
||||
return p.SendBlockHashes(hashes)
|
||||
|
||||
// returns either requested hashes or nothing (i.e. not found)
|
||||
case GetBlockHashesFromNumberMsg:
|
||||
// Retrieve and decode the number of hashes to return and from which origin number
|
||||
var request getBlockHashesFromNumberData
|
||||
if err := msg.Decode(&request); err != nil {
|
||||
return errResp(ErrDecode, "%v: %v", msg, err)
|
||||
}
|
||||
if request.Amount > uint64(downloader.MaxHashFetch) {
|
||||
request.Amount = uint64(downloader.MaxHashFetch)
|
||||
}
|
||||
// Calculate the last block that should be retrieved, and short circuit if unavailable
|
||||
last := pm.chainman.GetBlockByNumber(request.Number + request.Amount - 1)
|
||||
if last == nil {
|
||||
last = pm.chainman.CurrentBlock()
|
||||
request.Amount = last.NumberU64() - request.Number + 1
|
||||
}
|
||||
if last.NumberU64() < request.Number {
|
||||
return p.SendBlockHashes(nil)
|
||||
}
|
||||
// Retrieve the hashes from the last block backwards, reverse and return
|
||||
hashes := []common.Hash{last.Hash()}
|
||||
hashes = append(hashes, pm.chainman.GetBlockHashesFromHash(last.Hash(), request.Amount-1)...)
|
||||
|
||||
for i := 0; i < len(hashes)/2; i++ {
|
||||
hashes[i], hashes[len(hashes)-1-i] = hashes[len(hashes)-1-i], hashes[i]
|
||||
}
|
||||
return p.SendBlockHashes(hashes)
|
||||
|
||||
case BlockHashesMsg:
|
||||
@ -399,6 +399,29 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
|
||||
p.SetTd(request.TD)
|
||||
go pm.synchronise(p)
|
||||
|
||||
case TxMsg:
|
||||
// Transactions arrived, parse all of them and deliver to the pool
|
||||
var txs []*types.Transaction
|
||||
if err := msg.Decode(&txs); err != nil {
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
propTxnInPacketsMeter.Mark(1)
|
||||
for i, tx := range txs {
|
||||
// Validate and mark the remote transaction
|
||||
if tx == nil {
|
||||
return errResp(ErrDecode, "transaction %d is nil", i)
|
||||
}
|
||||
p.MarkTransaction(tx.Hash())
|
||||
|
||||
// Log it's arrival for later analysis
|
||||
propTxnInTrafficMeter.Mark(tx.Size().Int64())
|
||||
jsonlogger.LogJson(&logger.EthTxReceived{
|
||||
TxHash: tx.Hash().Hex(),
|
||||
RemoteId: p.ID().String(),
|
||||
})
|
||||
}
|
||||
pm.txpool.AddTransactions(txs)
|
||||
|
||||
default:
|
||||
return errResp(ErrInvalidMsgCode, "%v", msg.Code)
|
||||
}
|
||||
|
||||
@ -1,26 +1,28 @@
|
||||
package eth
|
||||
|
||||
import "github.com/rcrowley/go-metrics"
|
||||
import (
|
||||
"github.com/ethereum/go-ethereum/metrics"
|
||||
)
|
||||
|
||||
var (
|
||||
propTxnInPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/txns/in/packets", metrics.DefaultRegistry)
|
||||
propTxnInTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/txns/in/traffic", metrics.DefaultRegistry)
|
||||
propTxnOutPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/txns/out/packets", metrics.DefaultRegistry)
|
||||
propTxnOutTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/txns/out/traffic", metrics.DefaultRegistry)
|
||||
propHashInPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/hashes/in/packets", metrics.DefaultRegistry)
|
||||
propHashInTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/hashes/in/traffic", metrics.DefaultRegistry)
|
||||
propHashOutPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/hashes/out/packets", metrics.DefaultRegistry)
|
||||
propHashOutTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/hashes/out/traffic", metrics.DefaultRegistry)
|
||||
propBlockInPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/blocks/in/packets", metrics.DefaultRegistry)
|
||||
propBlockInTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/blocks/in/traffic", metrics.DefaultRegistry)
|
||||
propBlockOutPacketsMeter = metrics.GetOrRegisterMeter("eth/prop/blocks/out/packets", metrics.DefaultRegistry)
|
||||
propBlockOutTrafficMeter = metrics.GetOrRegisterMeter("eth/prop/blocks/out/traffic", metrics.DefaultRegistry)
|
||||
reqHashInPacketsMeter = metrics.GetOrRegisterMeter("eth/req/hashes/in/packets", metrics.DefaultRegistry)
|
||||
reqHashInTrafficMeter = metrics.GetOrRegisterMeter("eth/req/hashes/in/traffic", metrics.DefaultRegistry)
|
||||
reqHashOutPacketsMeter = metrics.GetOrRegisterMeter("eth/req/hashes/out/packets", metrics.DefaultRegistry)
|
||||
reqHashOutTrafficMeter = metrics.GetOrRegisterMeter("eth/req/hashes/out/traffic", metrics.DefaultRegistry)
|
||||
reqBlockInPacketsMeter = metrics.GetOrRegisterMeter("eth/req/blocks/in/packets", metrics.DefaultRegistry)
|
||||
reqBlockInTrafficMeter = metrics.GetOrRegisterMeter("eth/req/blocks/in/traffic", metrics.DefaultRegistry)
|
||||
reqBlockOutPacketsMeter = metrics.GetOrRegisterMeter("eth/req/blocks/out/packets", metrics.DefaultRegistry)
|
||||
reqBlockOutTrafficMeter = metrics.GetOrRegisterMeter("eth/req/blocks/out/traffic", metrics.DefaultRegistry)
|
||||
propTxnInPacketsMeter = metrics.NewMeter("eth/prop/txns/in/packets")
|
||||
propTxnInTrafficMeter = metrics.NewMeter("eth/prop/txns/in/traffic")
|
||||
propTxnOutPacketsMeter = metrics.NewMeter("eth/prop/txns/out/packets")
|
||||
propTxnOutTrafficMeter = metrics.NewMeter("eth/prop/txns/out/traffic")
|
||||
propHashInPacketsMeter = metrics.NewMeter("eth/prop/hashes/in/packets")
|
||||
propHashInTrafficMeter = metrics.NewMeter("eth/prop/hashes/in/traffic")
|
||||
propHashOutPacketsMeter = metrics.NewMeter("eth/prop/hashes/out/packets")
|
||||
propHashOutTrafficMeter = metrics.NewMeter("eth/prop/hashes/out/traffic")
|
||||
propBlockInPacketsMeter = metrics.NewMeter("eth/prop/blocks/in/packets")
|
||||
propBlockInTrafficMeter = metrics.NewMeter("eth/prop/blocks/in/traffic")
|
||||
propBlockOutPacketsMeter = metrics.NewMeter("eth/prop/blocks/out/packets")
|
||||
propBlockOutTrafficMeter = metrics.NewMeter("eth/prop/blocks/out/traffic")
|
||||
reqHashInPacketsMeter = metrics.NewMeter("eth/req/hashes/in/packets")
|
||||
reqHashInTrafficMeter = metrics.NewMeter("eth/req/hashes/in/traffic")
|
||||
reqHashOutPacketsMeter = metrics.NewMeter("eth/req/hashes/out/packets")
|
||||
reqHashOutTrafficMeter = metrics.NewMeter("eth/req/hashes/out/traffic")
|
||||
reqBlockInPacketsMeter = metrics.NewMeter("eth/req/blocks/in/packets")
|
||||
reqBlockInTrafficMeter = metrics.NewMeter("eth/req/blocks/in/traffic")
|
||||
reqBlockOutPacketsMeter = metrics.NewMeter("eth/req/blocks/out/packets")
|
||||
reqBlockOutTrafficMeter = metrics.NewMeter("eth/req/blocks/out/traffic")
|
||||
)
|
||||
|
||||
@ -174,9 +174,9 @@ func (p *peer) RequestHashes(from common.Hash) error {
|
||||
|
||||
// RequestHashesFromNumber fetches a batch of hashes from a peer, starting at the
|
||||
// requested block number, going upwards towards the genesis block.
|
||||
func (p *peer) RequestHashesFromNumber(from uint64) error {
|
||||
glog.V(logger.Debug).Infof("Peer [%s] fetching hashes (%d) from #%d...\n", p.id, downloader.MaxHashFetch, from)
|
||||
return p2p.Send(p.rw, GetBlockHashesFromNumberMsg, getBlockHashesFromNumberData{from, uint64(downloader.MaxHashFetch)})
|
||||
func (p *peer) RequestHashesFromNumber(from uint64, count int) error {
|
||||
glog.V(logger.Debug).Infof("Peer [%s] fetching hashes (%d) from #%d...\n", p.id, count, from)
|
||||
return p2p.Send(p.rw, GetBlockHashesFromNumberMsg, getBlockHashesFromNumberData{from, uint64(count)})
|
||||
}
|
||||
|
||||
// RequestBlocks fetches a batch of blocks corresponding to the specified hashes.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user