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core, les, eth: port snap sync changes (#24898)

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core, eth, les, trie: rework snap sync
This commit is contained in:
rjl493456442 2022-07-15 19:55:51 +08:00 committed by GitHub
parent 1c9afc56ae
commit 1657e43931
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 876 additions and 521 deletions
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2
core/state/statedb.go
View File

@ -940,7 +940,7 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (common.Hash, error) {
// The onleaf func is called _serially_, so we can reuse the same account
// for unmarshalling every time.
var account types.StateAccount
root, accountCommitted, err := s.trie.Commit(func(_ [][]byte, _ []byte, leaf []byte, parent common.Hash) error {
root, accountCommitted, err := s.trie.Commit(func(_ [][]byte, _ []byte, leaf []byte, parent common.Hash, _ []byte) error {
if err := rlp.DecodeBytes(leaf, &account); err != nil {
return nil
}

16
core/state/sync.go
View File

@ -27,20 +27,20 @@ import (
)
// NewStateSync create a new state trie download scheduler.
func NewStateSync(root common.Hash, database ethdb.KeyValueReader, onLeaf func(paths [][]byte, leaf []byte) error) *trie.Sync {
func NewStateSync(root common.Hash, database ethdb.KeyValueReader, onLeaf func(keys [][]byte, leaf []byte) error) *trie.Sync {
// Register the storage slot callback if the external callback is specified.
var onSlot func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash) error
var onSlot func(keys [][]byte, path []byte, leaf []byte, parent common.Hash, parentPath []byte) error
if onLeaf != nil {
onSlot = func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash) error {
return onLeaf(paths, leaf)
onSlot = func(keys [][]byte, path []byte, leaf []byte, parent common.Hash, parentPath []byte) error {
return onLeaf(keys, leaf)
}
}
// Register the account callback to connect the state trie and the storage
// trie belongs to the contract.
var syncer *trie.Sync
onAccount := func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash) error {
onAccount := func(keys [][]byte, path []byte, leaf []byte, parent common.Hash, parentPath []byte) error {
if onLeaf != nil {
if err := onLeaf(paths, leaf); err != nil {
if err := onLeaf(keys, leaf); err != nil {
return err
}
}
@ -48,8 +48,8 @@ func NewStateSync(root common.Hash, database ethdb.KeyValueReader, onLeaf func(p
if err := rlp.Decode(bytes.NewReader(leaf), &obj); err != nil {
return err
}
syncer.AddSubTrie(obj.Root, hexpath, parent, onSlot)
syncer.AddCodeEntry(common.BytesToHash(obj.CodeHash), hexpath, parent)
syncer.AddSubTrie(obj.Root, path, parent, parentPath, onSlot)
syncer.AddCodeEntry(common.BytesToHash(obj.CodeHash), path, parent, parentPath)
return nil
}
syncer = trie.NewSync(root, database, onAccount)

442
core/state/sync_test.go
View File

@ -134,7 +134,7 @@ func checkStateConsistency(db ethdb.Database, root common.Hash) error {
func TestEmptyStateSync(t *testing.T) {
empty := common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
sync := NewStateSync(empty, rawdb.NewMemoryDatabase(), nil)
if nodes, paths, codes := sync.Missing(1); len(nodes) != 0 || len(paths) != 0 || len(codes) != 0 {
if paths, nodes, codes := sync.Missing(1); len(paths) != 0 || len(nodes) != 0 || len(codes) != 0 {
t.Errorf("content requested for empty state: %v, %v, %v", nodes, paths, codes)
}
}
@ -160,6 +160,14 @@ func TestIterativeStateSyncBatchedByPath(t *testing.T) {
testIterativeStateSync(t, 100, false, true)
}
// stateElement represents the element in the state trie(bytecode or trie node).
type stateElement struct {
path string
hash common.Hash
code common.Hash
syncPath trie.SyncPath
}
func testIterativeStateSync(t *testing.T, count int, commit bool, bypath bool) {
// Create a random state to copy
srcDb, srcRoot, srcAccounts := makeTestState()
@ -172,54 +180,73 @@ func testIterativeStateSync(t *testing.T, count int, commit bool, bypath bool) {
dstDb := rawdb.NewMemoryDatabase()
sched := NewStateSync(srcRoot, dstDb, nil)
nodes, paths, codes := sched.Missing(count)
var (
hashQueue []common.Hash
pathQueue []trie.SyncPath
nodeElements []stateElement
codeElements []stateElement
)
if !bypath {
hashQueue = append(append(hashQueue[:0], nodes...), codes...)
} else {
hashQueue = append(hashQueue[:0], codes...)
pathQueue = append(pathQueue[:0], paths...)
paths, nodes, codes := sched.Missing(count)
for i := 0; i < len(paths); i++ {
nodeElements = append(nodeElements, stateElement{
path: paths[i],
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(paths[i])),
})
}
for len(hashQueue)+len(pathQueue) > 0 {
results := make([]trie.SyncResult, len(hashQueue)+len(pathQueue))
for i, hash := range hashQueue {
data, err := srcDb.TrieDB().Node(hash)
for i := 0; i < len(codes); i++ {
codeElements = append(codeElements, stateElement{
code: codes[i],
})
}
for len(nodeElements)+len(codeElements) > 0 {
var (
nodeResults = make([]trie.NodeSyncResult, len(nodeElements))
codeResults = make([]trie.CodeSyncResult, len(codeElements))
)
for i, element := range codeElements {
data, err := srcDb.ContractCode(common.Hash{}, element.code)
if err != nil {
data, err = srcDb.ContractCode(common.Hash{}, hash)
t.Fatalf("failed to retrieve contract bytecode for hash %x", element.code)
}
codeResults[i] = trie.CodeSyncResult{Hash: element.code, Data: data}
}
for i, node := range nodeElements {
if bypath {
if len(node.syncPath) == 1 {
data, _, err := srcTrie.TryGetNode(node.syncPath[0])
if err != nil {
t.Fatalf("failed to retrieve node data for hash %x", hash)
t.Fatalf("failed to retrieve node data for path %x: %v", node.syncPath[0], err)
}
results[i] = trie.SyncResult{Hash: hash, Data: data}
}
for i, path := range pathQueue {
if len(path) == 1 {
data, _, err := srcTrie.TryGetNode(path[0])
if err != nil {
t.Fatalf("failed to retrieve node data for path %x: %v", path, err)
}
results[len(hashQueue)+i] = trie.SyncResult{Hash: crypto.Keccak256Hash(data), Data: data}
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
} else {
var acc types.StateAccount
if err := rlp.DecodeBytes(srcTrie.Get(path[0]), &acc); err != nil {
t.Fatalf("failed to decode account on path %x: %v", path, err)
if err := rlp.DecodeBytes(srcTrie.Get(node.syncPath[0]), &acc); err != nil {
t.Fatalf("failed to decode account on path %x: %v", node.syncPath[0], err)
}
stTrie, err := trie.New(common.BytesToHash(path[0]), acc.Root, srcDb.TrieDB())
stTrie, err := trie.New(common.BytesToHash(node.syncPath[0]), acc.Root, srcDb.TrieDB())
if err != nil {
t.Fatalf("failed to retriev storage trie for path %x: %v", path, err)
t.Fatalf("failed to retriev storage trie for path %x: %v", node.syncPath[1], err)
}
data, _, err := stTrie.TryGetNode(path[1])
data, _, err := stTrie.TryGetNode(node.syncPath[1])
if err != nil {
t.Fatalf("failed to retrieve node data for path %x: %v", path, err)
t.Fatalf("failed to retrieve node data for path %x: %v", node.syncPath[1], err)
}
results[len(hashQueue)+i] = trie.SyncResult{Hash: crypto.Keccak256Hash(data), Data: data}
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
}
} else {
data, err := srcDb.TrieDB().Node(node.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for key %v", []byte(node.path))
}
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
for _, result := range codeResults {
if err := sched.ProcessCode(result); err != nil {
t.Errorf("failed to process result %v", err)
}
}
for _, result := range nodeResults {
if err := sched.ProcessNode(result); err != nil {
t.Errorf("failed to process result %v", err)
}
}
@ -229,12 +256,20 @@ func testIterativeStateSync(t *testing.T, count int, commit bool, bypath bool) {
}
batch.Write()
nodes, paths, codes = sched.Missing(count)
if !bypath {
hashQueue = append(append(hashQueue[:0], nodes...), codes...)
} else {
hashQueue = append(hashQueue[:0], codes...)
pathQueue = append(pathQueue[:0], paths...)
paths, nodes, codes = sched.Missing(count)
nodeElements = nodeElements[:0]
for i := 0; i < len(paths); i++ {
nodeElements = append(nodeElements, stateElement{
path: paths[i],
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(paths[i])),
})
}
codeElements = codeElements[:0]
for i := 0; i < len(codes); i++ {
codeElements = append(codeElements, stateElement{
code: codes[i],
})
}
}
// Cross check that the two states are in sync
@ -251,35 +286,80 @@ func TestIterativeDelayedStateSync(t *testing.T) {
dstDb := rawdb.NewMemoryDatabase()
sched := NewStateSync(srcRoot, dstDb, nil)
nodes, _, codes := sched.Missing(0)
queue := append(append([]common.Hash{}, nodes...), codes...)
for len(queue) > 0 {
var (
nodeElements []stateElement
codeElements []stateElement
)
paths, nodes, codes := sched.Missing(0)
for i := 0; i < len(paths); i++ {
nodeElements = append(nodeElements, stateElement{
path: paths[i],
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(paths[i])),
})
}
for i := 0; i < len(codes); i++ {
codeElements = append(codeElements, stateElement{
code: codes[i],
})
}
for len(nodeElements)+len(codeElements) > 0 {
// Sync only half of the scheduled nodes
results := make([]trie.SyncResult, len(queue)/2+1)
for i, hash := range queue[:len(results)] {
data, err := srcDb.TrieDB().Node(hash)
var nodeProcessd int
var codeProcessd int
if len(codeElements) > 0 {
codeResults := make([]trie.CodeSyncResult, len(codeElements)/2+1)
for i, element := range codeElements[:len(codeResults)] {
data, err := srcDb.ContractCode(common.Hash{}, element.code)
if err != nil {
data, err = srcDb.ContractCode(common.Hash{}, hash)
t.Fatalf("failed to retrieve contract bytecode for %x", element.code)
}
if err != nil {
t.Fatalf("failed to retrieve node data for %x", hash)
codeResults[i] = trie.CodeSyncResult{Hash: element.code, Data: data}
}
results[i] = trie.SyncResult{Hash: hash, Data: data}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
for _, result := range codeResults {
if err := sched.ProcessCode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
codeProcessd = len(codeResults)
}
if len(nodeElements) > 0 {
nodeResults := make([]trie.NodeSyncResult, len(nodeElements)/2+1)
for i, element := range nodeElements[:len(nodeResults)] {
data, err := srcDb.TrieDB().Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve contract bytecode for %x", element.code)
}
nodeResults[i] = trie.NodeSyncResult{Path: element.path, Data: data}
}
for _, result := range nodeResults {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
nodeProcessd = len(nodeResults)
}
batch := dstDb.NewBatch()
if err := sched.Commit(batch); err != nil {
t.Fatalf("failed to commit data: %v", err)
}
batch.Write()
nodes, _, codes = sched.Missing(0)
queue = append(append(queue[len(results):], nodes...), codes...)
paths, nodes, codes = sched.Missing(0)
nodeElements = nodeElements[nodeProcessd:]
for i := 0; i < len(paths); i++ {
nodeElements = append(nodeElements, stateElement{
path: paths[i],
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(paths[i])),
})
}
codeElements = codeElements[codeProcessd:]
for i := 0; i < len(codes); i++ {
codeElements = append(codeElements, stateElement{
code: codes[i],
})
}
}
// Cross check that the two states are in sync
checkStateAccounts(t, dstDb, srcRoot, srcAccounts)
@ -299,40 +379,70 @@ func testIterativeRandomStateSync(t *testing.T, count int) {
dstDb := rawdb.NewMemoryDatabase()
sched := NewStateSync(srcRoot, dstDb, nil)
queue := make(map[common.Hash]struct{})
nodes, _, codes := sched.Missing(count)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
nodeQueue := make(map[string]stateElement)
codeQueue := make(map[common.Hash]struct{})
paths, nodes, codes := sched.Missing(count)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
for len(queue) > 0 {
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
for len(nodeQueue)+len(codeQueue) > 0 {
// Fetch all the queued nodes in a random order
results := make([]trie.SyncResult, 0, len(queue))
for hash := range queue {
data, err := srcDb.TrieDB().Node(hash)
if err != nil {
data, err = srcDb.ContractCode(common.Hash{}, hash)
}
if len(codeQueue) > 0 {
results := make([]trie.CodeSyncResult, 0, len(codeQueue))
for hash := range codeQueue {
data, err := srcDb.ContractCode(common.Hash{}, hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x", hash)
}
results = append(results, trie.SyncResult{Hash: hash, Data: data})
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
}
// Feed the retrieved results back and queue new tasks
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessCode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
if len(nodeQueue) > 0 {
results := make([]trie.NodeSyncResult, 0, len(nodeQueue))
for path, element := range nodeQueue {
data, err := srcDb.TrieDB().Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x %v %v", element.hash, []byte(element.path), element.path)
}
results = append(results, trie.NodeSyncResult{Path: path, Data: data})
}
for _, result := range results {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
// Feed the retrieved results back and queue new tasks
batch := dstDb.NewBatch()
if err := sched.Commit(batch); err != nil {
t.Fatalf("failed to commit data: %v", err)
}
batch.Write()
queue = make(map[common.Hash]struct{})
nodes, _, codes = sched.Missing(count)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
nodeQueue = make(map[string]stateElement)
codeQueue = make(map[common.Hash]struct{})
paths, nodes, codes := sched.Missing(count)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
}
// Cross check that the two states are in sync
@ -349,25 +459,52 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) {
dstDb := rawdb.NewMemoryDatabase()
sched := NewStateSync(srcRoot, dstDb, nil)
queue := make(map[common.Hash]struct{})
nodes, _, codes := sched.Missing(0)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
nodeQueue := make(map[string]stateElement)
codeQueue := make(map[common.Hash]struct{})
paths, nodes, codes := sched.Missing(0)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
for len(queue) > 0 {
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
for len(nodeQueue)+len(codeQueue) > 0 {
// Sync only half of the scheduled nodes, even those in random order
results := make([]trie.SyncResult, 0, len(queue)/2+1)
for hash := range queue {
delete(queue, hash)
if len(codeQueue) > 0 {
results := make([]trie.CodeSyncResult, 0, len(codeQueue)/2+1)
for hash := range codeQueue {
delete(codeQueue, hash)
data, err := srcDb.TrieDB().Node(hash)
if err != nil {
data, err = srcDb.ContractCode(common.Hash{}, hash)
}
data, err := srcDb.ContractCode(common.Hash{}, hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x", hash)
}
results = append(results, trie.SyncResult{Hash: hash, Data: data})
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
if len(results) >= cap(results) {
break
}
}
for _, result := range results {
if err := sched.ProcessCode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
if len(nodeQueue) > 0 {
results := make([]trie.NodeSyncResult, 0, len(nodeQueue)/2+1)
for path, element := range nodeQueue {
delete(nodeQueue, path)
data, err := srcDb.TrieDB().Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x", element.hash)
}
results = append(results, trie.NodeSyncResult{Path: path, Data: data})
if len(results) >= cap(results) {
break
@ -375,21 +512,27 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) {
}
// Feed the retrieved results back and queue new tasks
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
batch := dstDb.NewBatch()
if err := sched.Commit(batch); err != nil {
t.Fatalf("failed to commit data: %v", err)
}
batch.Write()
for _, result := range results {
delete(queue, result.Hash)
paths, nodes, codes := sched.Missing(0)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
nodes, _, codes = sched.Missing(0)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
}
// Cross check that the two states are in sync
@ -416,72 +559,107 @@ func TestIncompleteStateSync(t *testing.T) {
dstDb := rawdb.NewMemoryDatabase()
sched := NewStateSync(srcRoot, dstDb, nil)
var added []common.Hash
nodes, _, codes := sched.Missing(1)
queue := append(append([]common.Hash{}, nodes...), codes...)
for len(queue) > 0 {
// Fetch a batch of state nodes
results := make([]trie.SyncResult, len(queue))
for i, hash := range queue {
data, err := srcDb.TrieDB().Node(hash)
if err != nil {
data, err = srcDb.ContractCode(common.Hash{}, hash)
var (
addedCodes []common.Hash
addedNodes []common.Hash
)
nodeQueue := make(map[string]stateElement)
codeQueue := make(map[common.Hash]struct{})
paths, nodes, codes := sched.Missing(1)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
for len(nodeQueue)+len(codeQueue) > 0 {
// Fetch a batch of state nodes
if len(codeQueue) > 0 {
results := make([]trie.CodeSyncResult, 0, len(codeQueue))
for hash := range codeQueue {
data, err := srcDb.ContractCode(common.Hash{}, hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x", hash)
}
results[i] = trie.SyncResult{Hash: hash, Data: data}
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
addedCodes = append(addedCodes, hash)
}
// Process each of the state nodes
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessCode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
var nodehashes []common.Hash
if len(nodeQueue) > 0 {
results := make([]trie.NodeSyncResult, 0, len(nodeQueue))
for key, element := range nodeQueue {
data, err := srcDb.TrieDB().Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x", element.hash)
}
results = append(results, trie.NodeSyncResult{Path: key, Data: data})
if element.hash != srcRoot {
addedNodes = append(addedNodes, element.hash)
}
nodehashes = append(nodehashes, element.hash)
}
// Process each of the state nodes
for _, result := range results {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
}
batch := dstDb.NewBatch()
if err := sched.Commit(batch); err != nil {
t.Fatalf("failed to commit data: %v", err)
}
batch.Write()
for _, result := range results {
added = append(added, result.Hash)
// Check that all known sub-tries added so far are complete or missing entirely.
if _, ok := isCode[result.Hash]; ok {
continue
}
for _, root := range nodehashes {
// Can't use checkStateConsistency here because subtrie keys may have odd
// length and crash in LeafKey.
if err := checkTrieConsistency(dstDb, result.Hash); err != nil {
if err := checkTrieConsistency(dstDb, root); err != nil {
t.Fatalf("state inconsistent: %v", err)
}
}
// Fetch the next batch to retrieve
nodes, _, codes = sched.Missing(1)
queue = append(append(queue[:0], nodes...), codes...)
nodeQueue = make(map[string]stateElement)
codeQueue = make(map[common.Hash]struct{})
paths, nodes, codes := sched.Missing(1)
for i, path := range paths {
nodeQueue[path] = stateElement{
path: path,
hash: nodes[i],
syncPath: trie.NewSyncPath([]byte(path)),
}
}
for _, hash := range codes {
codeQueue[hash] = struct{}{}
}
}
// Sanity check that removing any node from the database is detected
for _, node := range added[1:] {
var (
key = node.Bytes()
_, code = isCode[node]
val []byte
)
if code {
val = rawdb.ReadCode(dstDb, node)
for _, node := range addedCodes {
val := rawdb.ReadCode(dstDb, node)
rawdb.DeleteCode(dstDb, node)
} else {
val = rawdb.ReadTrieNode(dstDb, node)
rawdb.DeleteTrieNode(dstDb, node)
if err := checkStateConsistency(dstDb, srcRoot); err == nil {
t.Errorf("trie inconsistency not caught, missing: %x", node)
}
if err := checkStateConsistency(dstDb, added[0]); err == nil {
t.Fatalf("trie inconsistency not caught, missing: %x", key)
}
if code {
rawdb.WriteCode(dstDb, node, val)
} else {
}
for _, node := range addedNodes {
val := rawdb.ReadTrieNode(dstDb, node)
rawdb.DeleteTrieNode(dstDb, node)
if err := checkStateConsistency(dstDb, srcRoot); err == nil {
t.Errorf("trie inconsistency not caught, missing: %v", node.Hex())
}
rawdb.WriteTrieNode(dstDb, node, val)
}
}
}

3
eth/downloader/skeleton_test.go
View File

@ -21,7 +21,6 @@ import (
"errors"
"fmt"
"math/big"
"os"
"sync/atomic"
"testing"
"time"
@ -515,7 +514,7 @@ func TestSkeletonSyncExtend(t *testing.T) {
// Tests that the skeleton sync correctly retrieves headers from one or more
// peers without duplicates or other strange side effects.
func TestSkeletonSyncRetrievals(t *testing.T) {
log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
//log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
// Since skeleton headers don't need to be meaningful, beyond a parent hash
// progression, create a long fake chain to test with.

23
eth/protocols/snap/sort_test.go
View File

@ -22,7 +22,6 @@ import (
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/trie"
)
func hexToNibbles(s string) []byte {
@ -38,22 +37,17 @@ func hexToNibbles(s string) []byte {
}
func TestRequestSorting(t *testing.T) {
// - Path 0x9 -> {0x19}
// - Path 0x99 -> {0x0099}
// - Path 0x01234567890123456789012345678901012345678901234567890123456789019 -> {0x0123456789012345678901234567890101234567890123456789012345678901, 0x19}
// - Path 0x012345678901234567890123456789010123456789012345678901234567890199 -> {0x0123456789012345678901234567890101234567890123456789012345678901, 0x0099}
var f = func(path string) (trie.SyncPath, TrieNodePathSet, common.Hash) {
var f = func(path string) string {
data := hexToNibbles(path)
sp := trie.NewSyncPath(data)
tnps := TrieNodePathSet([][]byte(sp))
hash := common.Hash{}
return sp, tnps, hash
return string(data)
}
var (
hashes []common.Hash
paths []trie.SyncPath
pathsets []TrieNodePathSet
paths []string
)
for _, x := range []string{
"0x9",
@ -67,15 +61,14 @@ func TestRequestSorting(t *testing.T) {
"0x01234567890123456789012345678901012345678901234567890123456789010",
"0x01234567890123456789012345678901012345678901234567890123456789011",
} {
sp, _, hash := f(x)
hashes = append(hashes, hash)
paths = append(paths, sp)
paths = append(paths, f(x))
hashes = append(hashes, common.Hash{})
}
_, paths, pathsets = sortByAccountPath(hashes, paths)
_, _, syncPaths, pathsets := sortByAccountPath(paths, hashes)
{
var b = new(bytes.Buffer)
for i := 0; i < len(paths); i++ {
fmt.Fprintf(b, "\n%d. paths %x", i, paths[i])
for i := 0; i < len(syncPaths); i++ {
fmt.Fprintf(b, "\n%d. paths %x", i, syncPaths[i])
}
want := `
0. paths [0099]

79
eth/protocols/snap/sync.go
View File

@ -230,8 +230,8 @@ type trienodeHealRequest struct {
timeout *time.Timer // Timer to track delivery timeout
stale chan struct{} // Channel to signal the request was dropped
paths []string // Trie node paths for identifying trie node
hashes []common.Hash // Trie node hashes to validate responses
paths []trie.SyncPath // Trie node paths requested for rescheduling
task *healTask // Task which this request is filling (only access fields through the runloop!!)
}
@ -240,8 +240,8 @@ type trienodeHealRequest struct {
type trienodeHealResponse struct {
task *healTask // Task which this request is filling
paths []string // Paths of the trie nodes
hashes []common.Hash // Hashes of the trie nodes to avoid double hashing
paths []trie.SyncPath // Trie node paths requested for rescheduling missing ones
nodes [][]byte // Actual trie nodes to store into the database (nil = missing)
}
@ -321,8 +321,8 @@ type storageTask struct {
type healTask struct {
scheduler *trie.Sync // State trie sync scheduler defining the tasks
trieTasks map[common.Hash]trie.SyncPath // Set of trie node tasks currently queued for retrieval
codeTasks map[common.Hash]struct{} // Set of byte code tasks currently queued for retrieval
trieTasks map[string]common.Hash // Set of trie node tasks currently queued for retrieval, indexed by node path
codeTasks map[common.Hash]struct{} // Set of byte code tasks currently queued for retrieval, indexed by code hash
}
// SyncProgress is a database entry to allow suspending and resuming a snapshot state
@ -540,7 +540,7 @@ func (s *Syncer) Unregister(id string) error {
return nil
}
// Sync starts (or resumes a previous) sync cycle to iterate over an state trie
// Sync starts (or resumes a previous) sync cycle to iterate over a state trie
// with the given root and reconstruct the nodes based on the snapshot leaves.
// Previously downloaded segments will not be redownloaded of fixed, rather any
// errors will be healed after the leaves are fully accumulated.
@ -551,7 +551,7 @@ func (s *Syncer) Sync(root common.Hash, cancel chan struct{}) error {
s.root = root
s.healer = &healTask{
scheduler: state.NewStateSync(root, s.db, s.onHealState),
trieTasks: make(map[common.Hash]trie.SyncPath),
trieTasks: make(map[string]common.Hash),
codeTasks: make(map[common.Hash]struct{}),
}
s.statelessPeers = make(map[string]struct{})
@ -743,7 +743,7 @@ func (s *Syncer) loadSyncStatus() {
return
}
}
// Either we've failed to decode the previus state, or there was none.
// Either we've failed to decode the previous state, or there was none.
// Start a fresh sync by chunking up the account range and scheduling
// them for retrieval.
s.tasks = nil
@ -1280,9 +1280,9 @@ func (s *Syncer) assignTrienodeHealTasks(success chan *trienodeHealResponse, fai
want = maxTrieRequestCount + maxCodeRequestCount
)
if have < want {
nodes, paths, codes := s.healer.scheduler.Missing(want - have)
for i, hash := range nodes {
s.healer.trieTasks[hash] = paths[i]
paths, hashes, codes := s.healer.scheduler.Missing(want - have)
for i, path := range paths {
s.healer.trieTasks[path] = hashes[i]
}
for _, hash := range codes {
s.healer.codeTasks[hash] = struct{}{}
@ -1323,21 +1323,20 @@ func (s *Syncer) assignTrienodeHealTasks(success chan *trienodeHealResponse, fai
}
var (
hashes = make([]common.Hash, 0, cap)
paths = make([]trie.SyncPath, 0, cap)
paths = make([]string, 0, cap)
pathsets = make([]TrieNodePathSet, 0, cap)
)
for hash, pathset := range s.healer.trieTasks {
delete(s.healer.trieTasks, hash)
for path, hash := range s.healer.trieTasks {
delete(s.healer.trieTasks, path)
paths = append(paths, path)
hashes = append(hashes, hash)
paths = append(paths, pathset)
if len(hashes) >= cap {
if len(paths) >= cap {
break
}
}
// Group requests by account hash
hashes, paths, pathsets = sortByAccountPath(hashes, paths)
paths, hashes, _, pathsets = sortByAccountPath(paths, hashes)
req := &trienodeHealRequest{
peer: idle,
id: reqid,
@ -1346,8 +1345,8 @@ func (s *Syncer) assignTrienodeHealTasks(success chan *trienodeHealResponse, fai
revert: fail,
cancel: cancel,
stale: make(chan struct{}),
hashes: hashes,
paths: paths,
hashes: hashes,
task: s.healer,
}
req.timeout = time.AfterFunc(s.rates.TargetTimeout(), func() {
@ -1405,9 +1404,9 @@ func (s *Syncer) assignBytecodeHealTasks(success chan *bytecodeHealResponse, fai
want = maxTrieRequestCount + maxCodeRequestCount
)
if have < want {
nodes, paths, codes := s.healer.scheduler.Missing(want - have)
for i, hash := range nodes {
s.healer.trieTasks[hash] = paths[i]
paths, hashes, codes := s.healer.scheduler.Missing(want - have)
for i, path := range paths {
s.healer.trieTasks[path] = hashes[i]
}
for _, hash := range codes {
s.healer.codeTasks[hash] = struct{}{}
@ -1703,10 +1702,10 @@ func (s *Syncer) revertTrienodeHealRequest(req *trienodeHealRequest) {
s.lock.Unlock()
// If there's a timeout timer still running, abort it and mark the trie node
// retrievals as not-pending, ready for resheduling
// retrievals as not-pending, ready for rescheduling
req.timeout.Stop()
for i, hash := range req.hashes {
req.task.trieTasks[hash] = req.paths[i]
for i, path := range req.paths {
req.task.trieTasks[path] = req.hashes[i]
}
}
@ -2096,14 +2095,14 @@ func (s *Syncer) processTrienodeHealResponse(res *trienodeHealResponse) {
// If the trie node was not delivered, reschedule it
if node == nil {
res.task.trieTasks[hash] = res.paths[i]
res.task.trieTasks[res.paths[i]] = res.hashes[i]
continue
}
// Push the trie node into the state syncer
s.trienodeHealSynced++
s.trienodeHealBytes += common.StorageSize(len(node))
err := s.healer.scheduler.Process(trie.SyncResult{Hash: hash, Data: node})
err := s.healer.scheduler.ProcessNode(trie.NodeSyncResult{Path: res.paths[i], Data: node})
switch err {
case nil:
case trie.ErrAlreadyProcessed:
@ -2139,7 +2138,7 @@ func (s *Syncer) processBytecodeHealResponse(res *bytecodeHealResponse) {
s.bytecodeHealSynced++
s.bytecodeHealBytes += common.StorageSize(len(node))
err := s.healer.scheduler.Process(trie.SyncResult{Hash: hash, Data: node})
err := s.healer.scheduler.ProcessCode(trie.CodeSyncResult{Hash: hash, Data: node})
switch err {
case nil:
case trie.ErrAlreadyProcessed:
@ -2666,9 +2665,9 @@ func (s *Syncer) OnTrieNodes(peer SyncPeer, id uint64, trienodes [][]byte) error
}
// Response validated, send it to the scheduler for filling
response := &trienodeHealResponse{
paths: req.paths,
task: req.task,
hashes: req.hashes,
paths: req.paths,
nodes: nodes,
}
select {
@ -2913,8 +2912,9 @@ func (s *capacitySort) Swap(i, j int) {
// healRequestSort implements the Sort interface, allowing sorting trienode
// heal requests, which is a prerequisite for merging storage-requests.
type healRequestSort struct {
paths []string
hashes []common.Hash
paths []trie.SyncPath
syncPaths []trie.SyncPath
}
func (t *healRequestSort) Len() int {
@ -2922,8 +2922,8 @@ func (t *healRequestSort) Len() int {
}
func (t *healRequestSort) Less(i, j int) bool {
a := t.paths[i]
b := t.paths[j]
a := t.syncPaths[i]
b := t.syncPaths[j]
switch bytes.Compare(a[0], b[0]) {
case -1:
return true
@ -2944,8 +2944,9 @@ func (t *healRequestSort) Less(i, j int) bool {
}
func (t *healRequestSort) Swap(i, j int) {
t.hashes[i], t.hashes[j] = t.hashes[j], t.hashes[i]
t.paths[i], t.paths[j] = t.paths[j], t.paths[i]
t.hashes[i], t.hashes[j] = t.hashes[j], t.hashes[i]
t.syncPaths[i], t.syncPaths[j] = t.syncPaths[j], t.syncPaths[i]
}
// Merge merges the pathsets, so that several storage requests concerning the
@ -2953,7 +2954,7 @@ func (t *healRequestSort) Swap(i, j int) {
// OBS: This operation is moot if t has not first been sorted.
func (t *healRequestSort) Merge() []TrieNodePathSet {
var result []TrieNodePathSet
for _, path := range t.paths {
for _, path := range t.syncPaths {
pathset := TrieNodePathSet([][]byte(path))
if len(path) == 1 {
// It's an account reference.
@ -2962,7 +2963,7 @@ func (t *healRequestSort) Merge() []TrieNodePathSet {
// It's a storage reference.
end := len(result) - 1
if len(result) == 0 || !bytes.Equal(pathset[0], result[end][0]) {
// The account doesn't doesn't match last, create a new entry.
// The account doesn't match last, create a new entry.
result = append(result, pathset)
} else {
// It's the same account as the previous one, add to the storage
@ -2976,9 +2977,13 @@ func (t *healRequestSort) Merge() []TrieNodePathSet {
// sortByAccountPath takes hashes and paths, and sorts them. After that, it generates
// the TrieNodePaths and merges paths which belongs to the same account path.
func sortByAccountPath(hashes []common.Hash, paths []trie.SyncPath) ([]common.Hash, []trie.SyncPath, []TrieNodePathSet) {
n := &healRequestSort{hashes, paths}
func sortByAccountPath(paths []string, hashes []common.Hash) ([]string, []common.Hash, []trie.SyncPath, []TrieNodePathSet) {
var syncPaths []trie.SyncPath
for _, path := range paths {
syncPaths = append(syncPaths, trie.NewSyncPath([]byte(path)))
}
n := &healRequestSort{paths, hashes, syncPaths}
sort.Sort(n)
pathsets := n.Merge()
return n.hashes, n.paths, pathsets
return n.paths, n.hashes, n.syncPaths, pathsets
}

71
les/downloader/statesync.go
View File

@ -34,7 +34,7 @@ import (
// a single data retrieval network packet.
type stateReq struct {
nItems uint16 // Number of items requested for download (max is 384, so uint16 is sufficient)
trieTasks map[common.Hash]*trieTask // Trie node download tasks to track previous attempts
trieTasks map[string]*trieTask // Trie node download tasks to track previous attempts
codeTasks map[common.Hash]*codeTask // Byte code download tasks to track previous attempts
timeout time.Duration // Maximum round trip time for this to complete
timer *time.Timer // Timer to fire when the RTT timeout expires
@ -263,8 +263,8 @@ type stateSync struct {
sched *trie.Sync // State trie sync scheduler defining the tasks
keccak crypto.KeccakState // Keccak256 hasher to verify deliveries with
trieTasks map[common.Hash]*trieTask // Set of trie node tasks currently queued for retrieval
codeTasks map[common.Hash]*codeTask // Set of byte code tasks currently queued for retrieval
trieTasks map[string]*trieTask // Set of trie node tasks currently queued for retrieval, indexed by path
codeTasks map[common.Hash]*codeTask // Set of byte code tasks currently queued for retrieval, indexed by hash
numUncommitted int
bytesUncommitted int
@ -281,6 +281,7 @@ type stateSync struct {
// trieTask represents a single trie node download task, containing a set of
// peers already attempted retrieval from to detect stalled syncs and abort.
type trieTask struct {
hash common.Hash
path [][]byte
attempts map[string]struct{}
}
@ -299,7 +300,7 @@ func newStateSync(d *Downloader, root common.Hash) *stateSync {
root: root,
sched: state.NewStateSync(root, d.stateDB, nil),
keccak: sha3.NewLegacyKeccak256().(crypto.KeccakState),
trieTasks: make(map[common.Hash]*trieTask),
trieTasks: make(map[string]*trieTask),
codeTasks: make(map[common.Hash]*codeTask),
deliver: make(chan *stateReq),
cancel: make(chan struct{}),
@ -455,10 +456,11 @@ func (s *stateSync) assignTasks() {
func (s *stateSync) fillTasks(n int, req *stateReq) (nodes []common.Hash, paths []trie.SyncPath, codes []common.Hash) {
// Refill available tasks from the scheduler.
if fill := n - (len(s.trieTasks) + len(s.codeTasks)); fill > 0 {
nodes, paths, codes := s.sched.Missing(fill)
for i, hash := range nodes {
s.trieTasks[hash] = &trieTask{
path: paths[i],
paths, hashes, codes := s.sched.Missing(fill)
for i, path := range paths {
s.trieTasks[path] = &trieTask{
hash: hashes[i],
path: trie.NewSyncPath([]byte(path)),
attempts: make(map[string]struct{}),
}
}
@ -474,7 +476,7 @@ func (s *stateSync) fillTasks(n int, req *stateReq) (nodes []common.Hash, paths
paths = make([]trie.SyncPath, 0, n)
codes = make([]common.Hash, 0, n)
req.trieTasks = make(map[common.Hash]*trieTask, n)
req.trieTasks = make(map[string]*trieTask, n)
req.codeTasks = make(map[common.Hash]*codeTask, n)
for hash, t := range s.codeTasks {
@ -492,7 +494,7 @@ func (s *stateSync) fillTasks(n int, req *stateReq) (nodes []common.Hash, paths
req.codeTasks[hash] = t
delete(s.codeTasks, hash)
}
for hash, t := range s.trieTasks {
for path, t := range s.trieTasks {
// Stop when we've gathered enough requests
if len(nodes)+len(codes) == n {
break
@ -504,11 +506,11 @@ func (s *stateSync) fillTasks(n int, req *stateReq) (nodes []common.Hash, paths
// Assign the request to this peer
t.attempts[req.peer.id] = struct{}{}
nodes = append(nodes, hash)
nodes = append(nodes, t.hash)
paths = append(paths, t.path)
req.trieTasks[hash] = t
delete(s.trieTasks, hash)
req.trieTasks[path] = t
delete(s.trieTasks, path)
}
req.nItems = uint16(len(nodes) + len(codes))
return nodes, paths, codes
@ -530,7 +532,7 @@ func (s *stateSync) process(req *stateReq) (int, error) {
// Iterate over all the delivered data and inject one-by-one into the trie
for _, blob := range req.response {
hash, err := s.processNodeData(blob)
hash, err := s.processNodeData(req.trieTasks, req.codeTasks, blob)
switch err {
case nil:
s.numUncommitted++
@ -543,13 +545,10 @@ func (s *stateSync) process(req *stateReq) (int, error) {
default:
return successful, fmt.Errorf("invalid state node %s: %v", hash.TerminalString(), err)
}
// Delete from both queues (one delivery is enough for the syncer)
delete(req.trieTasks, hash)
delete(req.codeTasks, hash)
}
// Put unfulfilled tasks back into the retry queue
npeers := s.d.peers.Len()
for hash, task := range req.trieTasks {
for path, task := range req.trieTasks {
// If the node did deliver something, missing items may be due to a protocol
// limit or a previous timeout + delayed delivery. Both cases should permit
// the node to retry the missing items (to avoid single-peer stalls).
@ -559,10 +558,10 @@ func (s *stateSync) process(req *stateReq) (int, error) {
// If we've requested the node too many times already, it may be a malicious
// sync where nobody has the right data. Abort.
if len(task.attempts) >= npeers {
return successful, fmt.Errorf("trie node %s failed with all peers (%d tries, %d peers)", hash.TerminalString(), len(task.attempts), npeers)
return successful, fmt.Errorf("trie node %s failed with all peers (%d tries, %d peers)", task.hash.TerminalString(), len(task.attempts), npeers)
}
// Missing item, place into the retry queue.
s.trieTasks[hash] = task
s.trieTasks[path] = task
}
for hash, task := range req.codeTasks {
// If the node did deliver something, missing items may be due to a protocol
@ -585,13 +584,35 @@ func (s *stateSync) process(req *stateReq) (int, error) {
// processNodeData tries to inject a trie node data blob delivered from a remote
// peer into the state trie, returning whether anything useful was written or any
// error occurred.
func (s *stateSync) processNodeData(blob []byte) (common.Hash, error) {
res := trie.SyncResult{Data: blob}
//
// If multiple requests correspond to the same hash, this method will inject the
// blob as a result for the first one only, leaving the remaining duplicates to
// be fetched again.
func (s *stateSync) processNodeData(nodeTasks map[string]*trieTask, codeTasks map[common.Hash]*codeTask, blob []byte) (common.Hash, error) {
var hash common.Hash
s.keccak.Reset()
s.keccak.Write(blob)
s.keccak.Read(res.Hash[:])
err := s.sched.Process(res)
return res.Hash, err
s.keccak.Read(hash[:])
if _, present := codeTasks[hash]; present {
err := s.sched.ProcessCode(trie.CodeSyncResult{
Hash: hash,
Data: blob,
})
delete(codeTasks, hash)
return hash, err
}
for path, task := range nodeTasks {
if task.hash == hash {
err := s.sched.ProcessNode(trie.NodeSyncResult{
Path: path,
Data: blob,
})
delete(nodeTasks, path)
return hash, err
}
}
return common.Hash{}, trie.ErrNotRequested
}
// updateStats bumps the various state sync progress counters and displays a log

24
trie/committer.go
View File

@ -33,6 +33,7 @@ type leaf struct {
size int // size of the rlp data (estimate)
hash common.Hash // hash of rlp data
node node // the node to commit
path []byte // the path from the root node
}
// committer is a type used for the trie Commit operation. A committer has some
@ -69,7 +70,7 @@ func (c *committer) Commit(n node, db *Database) (hashNode, int, error) {
if db == nil {
return nil, 0, errors.New("no db provided")
}
h, committed, err := c.commit(n, db)
h, committed, err := c.commit(nil, n, db)
if err != nil {
return nil, 0, err
}
@ -77,7 +78,7 @@ func (c *committer) Commit(n node, db *Database) (hashNode, int, error) {
}
// commit collapses a node down into a hash node and inserts it into the database
func (c *committer) commit(n node, db *Database) (node, int, error) {
func (c *committer) commit(path []byte, n node, db *Database) (node, int, error) {
// if this path is clean, use available cached data
hash, dirty := n.cache()
if hash != nil && !dirty {
@ -93,7 +94,7 @@ func (c *committer) commit(n node, db *Database) (node, int, error) {
// otherwise it can only be hashNode or valueNode.
var childCommitted int
if _, ok := cn.Val.(*fullNode); ok {
childV, committed, err := c.commit(cn.Val, db)
childV, committed, err := c.commit(append(path, cn.Key...), cn.Val, db)
if err != nil {
return nil, 0, err
}
@ -101,20 +102,20 @@ func (c *committer) commit(n node, db *Database) (node, int, error) {
}
// The key needs to be copied, since we're delivering it to database
collapsed.Key = hexToCompact(cn.Key)
hashedNode := c.store(collapsed, db)
hashedNode := c.store(path, collapsed, db)
if hn, ok := hashedNode.(hashNode); ok {
return hn, childCommitted + 1, nil
}
return collapsed, childCommitted, nil
case *fullNode:
hashedKids, childCommitted, err := c.commitChildren(cn, db)
hashedKids, childCommitted, err := c.commitChildren(path, cn, db)
if err != nil {
return nil, 0, err
}
collapsed := cn.copy()
collapsed.Children = hashedKids
hashedNode := c.store(collapsed, db)
hashedNode := c.store(path, collapsed, db)
if hn, ok := hashedNode.(hashNode); ok {
return hn, childCommitted + 1, nil
}
@ -128,7 +129,7 @@ func (c *committer) commit(n node, db *Database) (node, int, error) {
}
// commitChildren commits the children of the given fullnode
func (c *committer) commitChildren(n *fullNode, db *Database) ([17]node, int, error) {
func (c *committer) commitChildren(path []byte, n *fullNode, db *Database) ([17]node, int, error) {
var (
committed int
children [17]node
@ -148,7 +149,7 @@ func (c *committer) commitChildren(n *fullNode, db *Database) ([17]node, int, er
// Commit the child recursively and store the "hashed" value.
// Note the returned node can be some embedded nodes, so it's
// possible the type is not hashNode.
hashed, childCommitted, err := c.commit(child, db)
hashed, childCommitted, err := c.commit(append(path, byte(i)), child, db)
if err != nil {
return children, 0, err
}
@ -165,7 +166,7 @@ func (c *committer) commitChildren(n *fullNode, db *Database) ([17]node, int, er
// store hashes the node n and if we have a storage layer specified, it writes
// the key/value pair to it and tracks any node->child references as well as any
// node->external trie references.
func (c *committer) store(n node, db *Database) node {
func (c *committer) store(path []byte, n node, db *Database) node {
// Larger nodes are replaced by their hash and stored in the database.
var (
hash, _ = n.cache()
@ -189,6 +190,7 @@ func (c *committer) store(n node, db *Database) node {
size: size,
hash: common.BytesToHash(hash),
node: n,
path: path,
}
} else if db != nil {
// No leaf-callback used, but there's still a database. Do serial
@ -213,13 +215,13 @@ func (c *committer) commitLoop(db *Database) {
switch n := n.(type) {
case *shortNode:
if child, ok := n.Val.(valueNode); ok {
c.onleaf(nil, nil, child, hash)
c.onleaf(nil, nil, child, hash, nil)
}
case *fullNode:
// For children in range [0, 15], it's impossible
// to contain valueNode. Only check the 17th child.
if n.Children[16] != nil {
c.onleaf(nil, nil, n.Children[16].(valueNode), hash)
c.onleaf(nil, nil, n.Children[16].(valueNode), hash, nil)
}
}
}

271
trie/sync.go
View File

@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/common/prque"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
)
// ErrNotRequested is returned by the trie sync when it's requested to process a
@ -39,19 +40,6 @@ var ErrAlreadyProcessed = errors.New("already processed")
// memory if the node was configured with a significant number of peers.
const maxFetchesPerDepth = 16384
// request represents a scheduled or already in-flight state retrieval request.
type request struct {
path []byte // Merkle path leading to this node for prioritization
hash common.Hash // Hash of the node data content to retrieve
data []byte // Data content of the node, cached until all subtrees complete
code bool // Whether this is a code entry
parents []*request // Parent state nodes referencing this entry (notify all upon completion)
deps int // Number of dependencies before allowed to commit this node
callback LeafCallback // Callback to invoke if a leaf node it reached on this branch
}
// SyncPath is a path tuple identifying a particular trie node either in a single
// trie (account) or a layered trie (account -> storage).
//
@ -85,30 +73,57 @@ func NewSyncPath(path []byte) SyncPath {
return SyncPath{hexToKeybytes(path[:64]), hexToCompact(path[64:])}
}
// SyncResult is a response with requested data along with it's hash.
type SyncResult struct {
Hash common.Hash // Hash of the originally unknown trie node
Data []byte // Data content of the retrieved node
// nodeRequest represents a scheduled or already in-flight trie node retrieval request.
type nodeRequest struct {
hash common.Hash // Hash of the trie node to retrieve
path []byte // Merkle path leading to this node for prioritization
data []byte // Data content of the node, cached until all subtrees complete
parent *nodeRequest // Parent state node referencing this entry
deps int // Number of dependencies before allowed to commit this node
callback LeafCallback // Callback to invoke if a leaf node it reached on this branch
}
// codeRequest represents a scheduled or already in-flight bytecode retrieval request.
type codeRequest struct {
hash common.Hash // Hash of the contract bytecode to retrieve
path []byte // Merkle path leading to this node for prioritization
data []byte // Data content of the node, cached until all subtrees complete
parents []*nodeRequest // Parent state nodes referencing this entry (notify all upon completion)
}
// NodeSyncResult is a response with requested trie node along with its node path.
type NodeSyncResult struct {
Path string // Path of the originally unknown trie node
Data []byte // Data content of the retrieved trie node
}
// CodeSyncResult is a response with requested bytecode along with its hash.
type CodeSyncResult struct {
Hash common.Hash // Hash the originally unknown bytecode
Data []byte // Data content of the retrieved bytecode
}
// syncMemBatch is an in-memory buffer of successfully downloaded but not yet
// persisted data items.
type syncMemBatch struct {
nodes map[common.Hash][]byte // In-memory membatch of recently completed nodes
nodes map[string][]byte // In-memory membatch of recently completed nodes
hashes map[string]common.Hash // Hashes of recently completed nodes
codes map[common.Hash][]byte // In-memory membatch of recently completed codes
}
// newSyncMemBatch allocates a new memory-buffer for not-yet persisted trie nodes.
func newSyncMemBatch() *syncMemBatch {
return &syncMemBatch{
nodes: make(map[common.Hash][]byte),
nodes: make(map[string][]byte),
hashes: make(map[string]common.Hash),
codes: make(map[common.Hash][]byte),
}
}
// hasNode reports the trie node with specific hash is already cached.
func (batch *syncMemBatch) hasNode(hash common.Hash) bool {
_, ok := batch.nodes[hash]
// hasNode reports the trie node with specific path is already cached.
func (batch *syncMemBatch) hasNode(path []byte) bool {
_, ok := batch.nodes[string(path)]
return ok
}
@ -124,8 +139,8 @@ func (batch *syncMemBatch) hasCode(hash common.Hash) bool {
type Sync struct {
database ethdb.KeyValueReader // Persistent database to check for existing entries
membatch *syncMemBatch // Memory buffer to avoid frequent database writes
nodeReqs map[common.Hash]*request // Pending requests pertaining to a trie node hash
codeReqs map[common.Hash]*request // Pending requests pertaining to a code hash
nodeReqs map[string]*nodeRequest // Pending requests pertaining to a trie node path
codeReqs map[common.Hash]*codeRequest // Pending requests pertaining to a code hash
queue *prque.Prque // Priority queue with the pending requests
fetches map[int]int // Number of active fetches per trie node depth
}
@ -135,51 +150,51 @@ func NewSync(root common.Hash, database ethdb.KeyValueReader, callback LeafCallb
ts := &Sync{
database: database,
membatch: newSyncMemBatch(),
nodeReqs: make(map[common.Hash]*request),
codeReqs: make(map[common.Hash]*request),
nodeReqs: make(map[string]*nodeRequest),
codeReqs: make(map[common.Hash]*codeRequest),
queue: prque.New(nil),
fetches: make(map[int]int),
}
ts.AddSubTrie(root, nil, common.Hash{}, callback)
ts.AddSubTrie(root, nil, common.Hash{}, nil, callback)
return ts
}
// AddSubTrie registers a new trie to the sync code, rooted at the designated parent.
func (s *Sync) AddSubTrie(root common.Hash, path []byte, parent common.Hash, callback LeafCallback) {
// AddSubTrie registers a new trie to the sync code, rooted at the designated
// parent for completion tracking. The given path is a unique node path in
// hex format and contain all the parent path if it's layered trie node.
func (s *Sync) AddSubTrie(root common.Hash, path []byte, parent common.Hash, parentPath []byte, callback LeafCallback) {
// Short circuit if the trie is empty or already known
if root == emptyRoot {
return
}
if s.membatch.hasNode(root) {
if s.membatch.hasNode(path) {
return
}
// If database says this is a duplicate, then at least the trie node is
// present, and we hold the assumption that it's NOT legacy contract code.
if rawdb.HasTrieNode(s.database, root) {
return
}
// Assemble the new sub-trie sync request
req := &request{
path: path,
req := &nodeRequest{
hash: root,
path: path,
callback: callback,
}
// If this sub-trie has a designated parent, link them together
if parent != (common.Hash{}) {
ancestor := s.nodeReqs[parent]
ancestor := s.nodeReqs[string(parentPath)]
if ancestor == nil {
panic(fmt.Sprintf("sub-trie ancestor not found: %x", parent))
}
ancestor.deps++
req.parents = append(req.parents, ancestor)
req.parent = ancestor
}
s.schedule(req)
s.scheduleNodeRequest(req)
}
// AddCodeEntry schedules the direct retrieval of a contract code that should not
// be interpreted as a trie node, but rather accepted and stored into the database
// as is.
func (s *Sync) AddCodeEntry(hash common.Hash, path []byte, parent common.Hash) {
func (s *Sync) AddCodeEntry(hash common.Hash, path []byte, parent common.Hash, parentPath []byte) {
// Short circuit if the entry is empty or already known
if hash == emptyState {
return
@ -196,30 +211,29 @@ func (s *Sync) AddCodeEntry(hash common.Hash, path []byte, parent common.Hash) {
return
}
// Assemble the new sub-trie sync request
req := &request{
req := &codeRequest{
path: path,
hash: hash,
code: true,
}
// If this sub-trie has a designated parent, link them together
if parent != (common.Hash{}) {
ancestor := s.nodeReqs[parent] // the parent of codereq can ONLY be nodereq
ancestor := s.nodeReqs[string(parentPath)] // the parent of codereq can ONLY be nodereq
if ancestor == nil {
panic(fmt.Sprintf("raw-entry ancestor not found: %x", parent))
}
ancestor.deps++
req.parents = append(req.parents, ancestor)
}
s.schedule(req)
s.scheduleCodeRequest(req)
}
// Missing retrieves the known missing nodes from the trie for retrieval. To aid
// both eth/6x style fast sync and snap/1x style state sync, the paths of trie
// nodes are returned too, as well as separate hash list for codes.
func (s *Sync) Missing(max int) (nodes []common.Hash, paths []SyncPath, codes []common.Hash) {
func (s *Sync) Missing(max int) ([]string, []common.Hash, []common.Hash) {
var (
nodePaths []string
nodeHashes []common.Hash
nodePaths []SyncPath
codeHashes []common.Hash
)
for !s.queue.Empty() && (max == 0 || len(nodeHashes)+len(codeHashes) < max) {
@ -235,40 +249,59 @@ func (s *Sync) Missing(max int) (nodes []common.Hash, paths []SyncPath, codes []
s.queue.Pop()
s.fetches[depth]++
hash := item.(common.Hash)
if req, ok := s.nodeReqs[hash]; ok {
nodeHashes = append(nodeHashes, hash)
nodePaths = append(nodePaths, NewSyncPath(req.path))
} else {
codeHashes = append(codeHashes, hash)
switch item.(type) {
case common.Hash:
codeHashes = append(codeHashes, item.(common.Hash))
case string:
path := item.(string)
req, ok := s.nodeReqs[path]
if !ok {
log.Error("Missing node request", "path", path)
continue // System very wrong, shouldn't happen
}
nodePaths = append(nodePaths, path)
nodeHashes = append(nodeHashes, req.hash)
}
}
return nodeHashes, nodePaths, codeHashes
return nodePaths, nodeHashes, codeHashes
}
// Process injects the received data for requested item. Note it can
// ProcessCode injects the received data for requested item. Note it can
// happpen that the single response commits two pending requests(e.g.
// there are two requests one for code and one for node but the hash
// is same). In this case the second response for the same hash will
// be treated as "non-requested" item or "already-processed" item but
// there is no downside.
func (s *Sync) Process(result SyncResult) error {
// If the item was not requested either for code or node, bail out
if s.nodeReqs[result.Hash] == nil && s.codeReqs[result.Hash] == nil {
func (s *Sync) ProcessCode(result CodeSyncResult) error {
// If the code was not requested or it's already processed, bail out
req := s.codeReqs[result.Hash]
if req == nil {
return ErrNotRequested
}
// There is an pending code request for this data, commit directly
var filled bool
if req := s.codeReqs[result.Hash]; req != nil && req.data == nil {
filled = true
req.data = result.Data
s.commit(req)
if req.data != nil {
return ErrAlreadyProcessed
}
req.data = result.Data
return s.commitCodeRequest(req)
}
// ProcessNode injects the received data for requested item. Note it can
// happen that the single response commits two pending requests(e.g.
// there are two requests one for code and one for node but the hash
// is same). In this case the second response for the same hash will
// be treated as "non-requested" item or "already-processed" item but
// there is no downside.
func (s *Sync) ProcessNode(result NodeSyncResult) error {
// If the trie node was not requested or it's already processed, bail out
req := s.nodeReqs[result.Path]
if req == nil {
return ErrNotRequested
}
if req.data != nil {
return ErrAlreadyProcessed
}
// There is an pending node request for this data, fill it.
if req := s.nodeReqs[result.Hash]; req != nil && req.data == nil {
filled = true
// Decode the node data content and update the request
node, err := decodeNode(result.Hash[:], result.Data)
node, err := decodeNode(req.hash.Bytes(), result.Data)
if err != nil {
return err
}
@ -280,17 +313,13 @@ func (s *Sync) Process(result SyncResult) error {
return err
}
if len(requests) == 0 && req.deps == 0 {
s.commit(req)
s.commitNodeRequest(req)
} else {
req.deps += len(requests)
for _, child := range requests {
s.schedule(child)
s.scheduleNodeRequest(child)
}
}
}
if !filled {
return ErrAlreadyProcessed
}
return nil
}
@ -298,11 +327,11 @@ func (s *Sync) Process(result SyncResult) error {
// storage, returning any occurred error.
func (s *Sync) Commit(dbw ethdb.Batch) error {
// Dump the membatch into a database dbw
for key, value := range s.membatch.nodes {
rawdb.WriteTrieNode(dbw, key, value)
for path, value := range s.membatch.nodes {
rawdb.WriteTrieNode(dbw, s.membatch.hashes[path], value)
}
for key, value := range s.membatch.codes {
rawdb.WriteCode(dbw, key, value)
for hash, value := range s.membatch.codes {
rawdb.WriteCode(dbw, hash, value)
}
// Drop the membatch data and return
s.membatch = newSyncMemBatch()
@ -317,23 +346,31 @@ func (s *Sync) Pending() int {
// schedule inserts a new state retrieval request into the fetch queue. If there
// is already a pending request for this node, the new request will be discarded
// and only a parent reference added to the old one.
func (s *Sync) schedule(req *request) {
var reqset = s.nodeReqs
if req.code {
reqset = s.codeReqs
func (s *Sync) scheduleNodeRequest(req *nodeRequest) {
s.nodeReqs[string(req.path)] = req
// Schedule the request for future retrieval. This queue is shared
// by both node requests and code requests.
prio := int64(len(req.path)) << 56 // depth >= 128 will never happen, storage leaves will be included in their parents
for i := 0; i < 14 && i < len(req.path); i++ {
prio |= int64(15-req.path[i]) << (52 - i*4) // 15-nibble => lexicographic order
}
s.queue.Push(string(req.path), prio)
}
// schedule inserts a new state retrieval request into the fetch queue. If there
// is already a pending request for this node, the new request will be discarded
// and only a parent reference added to the old one.
func (s *Sync) scheduleCodeRequest(req *codeRequest) {
// If we're already requesting this node, add a new reference and stop
if old, ok := reqset[req.hash]; ok {
if old, ok := s.codeReqs[req.hash]; ok {
old.parents = append(old.parents, req.parents...)
return
}
reqset[req.hash] = req
s.codeReqs[req.hash] = req
// Schedule the request for future retrieval. This queue is shared
// by both node requests and code requests. It can happen that there
// is a trie node and code has same hash. In this case two elements
// with same hash and same or different depth will be pushed. But it's
// ok the worst case is the second response will be treated as duplicated.
// by both node requests and code requests.
prio := int64(len(req.path)) << 56 // depth >= 128 will never happen, storage leaves will be included in their parents
for i := 0; i < 14 && i < len(req.path); i++ {
prio |= int64(15-req.path[i]) << (52 - i*4) // 15-nibble => lexicographic order
@ -343,7 +380,7 @@ func (s *Sync) schedule(req *request) {
// children retrieves all the missing children of a state trie entry for future
// retrieval scheduling.
func (s *Sync) children(req *request, object node) ([]*request, error) {
func (s *Sync) children(req *nodeRequest, object node) ([]*nodeRequest, error) {
// Gather all the children of the node, irrelevant whether known or not
type child struct {
path []byte
@ -374,7 +411,7 @@ func (s *Sync) children(req *request, object node) ([]*request, error) {
panic(fmt.Sprintf("unknown node: %+v", node))
}
// Iterate over the children, and request all unknown ones
requests := make([]*request, 0, len(children))
requests := make([]*nodeRequest, 0, len(children))
for _, child := range children {
// Notify any external watcher of a new key/value node
if req.callback != nil {
@ -386,7 +423,7 @@ func (s *Sync) children(req *request, object node) ([]*request, error) {
paths = append(paths, hexToKeybytes(child.path[:2*common.HashLength]))
paths = append(paths, hexToKeybytes(child.path[2*common.HashLength:]))
}
if err := req.callback(paths, child.path, node, req.hash); err != nil {
if err := req.callback(paths, child.path, node, req.hash, req.path); err != nil {
return nil, err
}
}
@ -394,20 +431,20 @@ func (s *Sync) children(req *request, object node) ([]*request, error) {
// If the child references another node, resolve or schedule
if node, ok := (child.node).(hashNode); ok {
// Try to resolve the node from the local database
hash := common.BytesToHash(node)
if s.membatch.hasNode(hash) {
if s.membatch.hasNode(child.path) {
continue
}
// If database says duplicate, then at least the trie node is present
// and we hold the assumption that it's NOT legacy contract code.
if rawdb.HasTrieNode(s.database, hash) {
chash := common.BytesToHash(node)
if rawdb.HasTrieNode(s.database, chash) {
continue
}
// Locally unknown node, schedule for retrieval
requests = append(requests, &request{
requests = append(requests, &nodeRequest{
path: child.path,
hash: hash,
parents: []*request{req},
hash: chash,
parent: req,
callback: req.callback,
})
}
@ -418,22 +455,40 @@ func (s *Sync) children(req *request, object node) ([]*request, error) {
// commit finalizes a retrieval request and stores it into the membatch. If any
// of the referencing parent requests complete due to this commit, they are also
// committed themselves.
func (s *Sync) commit(req *request) (err error) {
func (s *Sync) commitNodeRequest(req *nodeRequest) error {
// Write the node content to the membatch
if req.code {
s.membatch.codes[req.hash] = req.data
delete(s.codeReqs, req.hash)
s.membatch.nodes[string(req.path)] = req.data
s.membatch.hashes[string(req.path)] = req.hash
delete(s.nodeReqs, string(req.path))
s.fetches[len(req.path)]--
} else {
s.membatch.nodes[req.hash] = req.data
delete(s.nodeReqs, req.hash)
s.fetches[len(req.path)]--
}
// Check all parents for completion
for _, parent := range req.parents {
parent.deps--
if parent.deps == 0 {
if err := s.commit(parent); err != nil {
// Check parent for completion
if req.parent != nil {
req.parent.deps--
if req.parent.deps == 0 {
if err := s.commitNodeRequest(req.parent); err != nil {
return err
}
}
}
return nil
}
// commit finalizes a retrieval request and stores it into the membatch. If any
// of the referencing parent requests complete due to this commit, they are also
// committed themselves.
func (s *Sync) commitCodeRequest(req *codeRequest) error {
// Write the node content to the membatch
s.membatch.codes[req.hash] = req.data
delete(s.codeReqs, req.hash)
s.fetches[len(req.path)]--
// Check all parents for completion
for _, parent := range req.parents {
parent.deps--
if parent.deps == 0 {
if err := s.commitNodeRequest(parent); err != nil {
return err
}
}

354
trie/sync_test.go
View File

@ -87,6 +87,13 @@ func checkTrieConsistency(db *Database, root common.Hash) error {
return it.Error()
}
// trieElement represents the element in the state trie(bytecode or trie node).
type trieElement struct {
path string
hash common.Hash
syncPath SyncPath
}
// Tests that an empty trie is not scheduled for syncing.
func TestEmptySync(t *testing.T) {
dbA := NewDatabase(memorydb.New())
@ -96,8 +103,8 @@ func TestEmptySync(t *testing.T) {
for i, trie := range []*Trie{emptyA, emptyB} {
sync := NewSync(trie.Hash(), memorydb.New(), nil)
if nodes, paths, codes := sync.Missing(1); len(nodes) != 0 || len(paths) != 0 || len(codes) != 0 {
t.Errorf("test %d: content requested for empty trie: %v, %v, %v", i, nodes, paths, codes)
if paths, nodes, codes := sync.Missing(1); len(paths) != 0 || len(nodes) != 0 || len(codes) != 0 {
t.Errorf("test %d: content requested for empty trie: %v, %v, %v", i, paths, nodes, codes)
}
}
}
@ -118,35 +125,38 @@ func testIterativeSync(t *testing.T, count int, bypath bool) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
nodes, paths, codes := sched.Missing(count)
var (
hashQueue []common.Hash
pathQueue []SyncPath
)
// The code requests are ignored here since there is no code
// at the testing trie.
paths, nodes, _ := sched.Missing(count)
var elements []trieElement
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
for len(elements) > 0 {
results := make([]NodeSyncResult, len(elements))
if !bypath {
hashQueue = append(append(hashQueue[:0], nodes...), codes...)
for i, element := range elements {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for hash %x: %v", element.hash, err)
}
results[i] = NodeSyncResult{element.path, data}
}
} else {
hashQueue = append(hashQueue[:0], codes...)
pathQueue = append(pathQueue[:0], paths...)
}
for len(hashQueue)+len(pathQueue) > 0 {
results := make([]SyncResult, len(hashQueue)+len(pathQueue))
for i, hash := range hashQueue {
data, err := srcDb.Node(hash)
for i, element := range elements {
data, _, err := srcTrie.TryGetNode(element.syncPath[len(element.syncPath)-1])
if err != nil {
t.Fatalf("failed to retrieve node data for hash %x: %v", hash, err)
t.Fatalf("failed to retrieve node data for path %x: %v", element.path, err)
}
results[i] = SyncResult{hash, data}
results[i] = NodeSyncResult{element.path, data}
}
for i, path := range pathQueue {
data, _, err := srcTrie.TryGetNode(path[0])
if err != nil {
t.Fatalf("failed to retrieve node data for path %x: %v", path, err)
}
results[len(hashQueue)+i] = SyncResult{crypto.Keccak256Hash(data), data}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -156,12 +166,14 @@ func testIterativeSync(t *testing.T, count int, bypath bool) {
}
batch.Write()
nodes, paths, codes = sched.Missing(count)
if !bypath {
hashQueue = append(append(hashQueue[:0], nodes...), codes...)
} else {
hashQueue = append(hashQueue[:0], codes...)
pathQueue = append(pathQueue[:0], paths...)
paths, nodes, _ = sched.Missing(count)
elements = elements[:0]
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
}
// Cross check that the two tries are in sync
@ -179,21 +191,29 @@ func TestIterativeDelayedSync(t *testing.T) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
nodes, _, codes := sched.Missing(10000)
queue := append(append([]common.Hash{}, nodes...), codes...)
for len(queue) > 0 {
// Sync only half of the scheduled nodes
results := make([]SyncResult, len(queue)/2+1)
for i, hash := range queue[:len(results)] {
data, err := srcDb.Node(hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
// The code requests are ignored here since there is no code
// at the testing trie.
paths, nodes, _ := sched.Missing(10000)
var elements []trieElement
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
results[i] = SyncResult{hash, data}
for len(elements) > 0 {
// Sync only half of the scheduled nodes
results := make([]NodeSyncResult, len(elements)/2+1)
for i, element := range elements[:len(results)] {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
results[i] = NodeSyncResult{element.path, data}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -203,8 +223,15 @@ func TestIterativeDelayedSync(t *testing.T) {
}
batch.Write()
nodes, _, codes = sched.Missing(10000)
queue = append(append(queue[len(results):], nodes...), codes...)
paths, nodes, _ = sched.Missing(10000)
elements = elements[len(results):]
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
}
// Cross check that the two tries are in sync
checkTrieContents(t, triedb, srcTrie.Hash().Bytes(), srcData)
@ -225,24 +252,30 @@ func testIterativeRandomSync(t *testing.T, count int) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
queue := make(map[common.Hash]struct{})
nodes, _, codes := sched.Missing(count)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
// The code requests are ignored here since there is no code
// at the testing trie.
paths, nodes, _ := sched.Missing(count)
queue := make(map[string]trieElement)
for i, path := range paths {
queue[path] = trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
}
}
for len(queue) > 0 {
// Fetch all the queued nodes in a random order
results := make([]SyncResult, 0, len(queue))
for hash := range queue {
data, err := srcDb.Node(hash)
results := make([]NodeSyncResult, 0, len(queue))
for path, element := range queue {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
results = append(results, SyncResult{hash, data})
results = append(results, NodeSyncResult{path, data})
}
// Feed the retrieved results back and queue new tasks
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -252,10 +285,14 @@ func testIterativeRandomSync(t *testing.T, count int) {
}
batch.Write()
queue = make(map[common.Hash]struct{})
nodes, _, codes = sched.Missing(count)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
paths, nodes, _ = sched.Missing(count)
queue = make(map[string]trieElement)
for i, path := range paths {
queue[path] = trieElement{
path: path,
hash: nodes[i],
syncPath: NewSyncPath([]byte(path)),
}
}
}
// Cross check that the two tries are in sync
@ -273,20 +310,26 @@ func TestIterativeRandomDelayedSync(t *testing.T) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
queue := make(map[common.Hash]struct{})
nodes, _, codes := sched.Missing(10000)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
// The code requests are ignored here since there is no code
// at the testing trie.
paths, nodes, _ := sched.Missing(10000)
queue := make(map[string]trieElement)
for i, path := range paths {
queue[path] = trieElement{
path: path,
hash: nodes[i],
syncPath: NewSyncPath([]byte(path)),
}
}
for len(queue) > 0 {
// Sync only half of the scheduled nodes, even those in random order
results := make([]SyncResult, 0, len(queue)/2+1)
for hash := range queue {
data, err := srcDb.Node(hash)
results := make([]NodeSyncResult, 0, len(queue)/2+1)
for path, element := range queue {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
results = append(results, SyncResult{hash, data})
results = append(results, NodeSyncResult{path, data})
if len(results) >= cap(results) {
break
@ -294,7 +337,7 @@ func TestIterativeRandomDelayedSync(t *testing.T) {
}
// Feed the retrieved results back and queue new tasks
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -304,11 +347,15 @@ func TestIterativeRandomDelayedSync(t *testing.T) {
}
batch.Write()
for _, result := range results {
delete(queue, result.Hash)
delete(queue, result.Path)
}
paths, nodes, _ = sched.Missing(10000)
for i, path := range paths {
queue[path] = trieElement{
path: path,
hash: nodes[i],
syncPath: NewSyncPath([]byte(path)),
}
nodes, _, codes = sched.Missing(10000)
for _, hash := range append(nodes, codes...) {
queue[hash] = struct{}{}
}
}
// Cross check that the two tries are in sync
@ -326,26 +373,35 @@ func TestDuplicateAvoidanceSync(t *testing.T) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
nodes, _, codes := sched.Missing(0)
queue := append(append([]common.Hash{}, nodes...), codes...)
// The code requests are ignored here since there is no code
// at the testing trie.
paths, nodes, _ := sched.Missing(0)
var elements []trieElement
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
requested := make(map[common.Hash]struct{})
for len(queue) > 0 {
results := make([]SyncResult, len(queue))
for i, hash := range queue {
data, err := srcDb.Node(hash)
for len(elements) > 0 {
results := make([]NodeSyncResult, len(elements))
for i, element := range elements {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
if _, ok := requested[hash]; ok {
t.Errorf("hash %x already requested once", hash)
if _, ok := requested[element.hash]; ok {
t.Errorf("hash %x already requested once", element.hash)
}
requested[hash] = struct{}{}
requested[element.hash] = struct{}{}
results[i] = SyncResult{hash, data}
results[i] = NodeSyncResult{element.path, data}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -355,8 +411,15 @@ func TestDuplicateAvoidanceSync(t *testing.T) {
}
batch.Write()
nodes, _, codes = sched.Missing(0)
queue = append(append(queue[:0], nodes...), codes...)
paths, nodes, _ = sched.Missing(0)
elements = elements[:0]
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
}
// Cross check that the two tries are in sync
checkTrieContents(t, triedb, srcTrie.Hash().Bytes(), srcData)
@ -373,23 +436,34 @@ func TestIncompleteSync(t *testing.T) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
var added []common.Hash
nodes, _, codes := sched.Missing(1)
queue := append(append([]common.Hash{}, nodes...), codes...)
for len(queue) > 0 {
// Fetch a batch of trie nodes
results := make([]SyncResult, len(queue))
for i, hash := range queue {
data, err := srcDb.Node(hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
// The code requests are ignored here since there is no code
// at the testing trie.
var (
added []common.Hash
elements []trieElement
root = srcTrie.Hash()
)
paths, nodes, _ := sched.Missing(1)
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
results[i] = SyncResult{hash, data}
for len(elements) > 0 {
// Fetch a batch of trie nodes
results := make([]NodeSyncResult, len(elements))
for i, element := range elements {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
results[i] = NodeSyncResult{element.path, data}
}
// Process each of the trie nodes
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -398,27 +472,36 @@ func TestIncompleteSync(t *testing.T) {
t.Fatalf("failed to commit data: %v", err)
}
batch.Write()
for _, result := range results {
added = append(added, result.Hash)
hash := crypto.Keccak256Hash(result.Data)
if hash != root {
added = append(added, hash)
}
// Check that all known sub-tries in the synced trie are complete
if err := checkTrieConsistency(triedb, result.Hash); err != nil {
if err := checkTrieConsistency(triedb, hash); err != nil {
t.Fatalf("trie inconsistent: %v", err)
}
}
// Fetch the next batch to retrieve
nodes, _, codes = sched.Missing(1)
queue = append(append(queue[:0], nodes...), codes...)
paths, nodes, _ = sched.Missing(1)
elements = elements[:0]
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
}
}
// Sanity check that removing any node from the database is detected
for _, node := range added[1:] {
key := node.Bytes()
value, _ := diskdb.Get(key)
diskdb.Delete(key)
if err := checkTrieConsistency(triedb, added[0]); err == nil {
t.Fatalf("trie inconsistency not caught, missing: %x", key)
for _, hash := range added {
value, _ := diskdb.Get(hash.Bytes())
diskdb.Delete(hash.Bytes())
if err := checkTrieConsistency(triedb, root); err == nil {
t.Fatalf("trie inconsistency not caught, missing: %x", hash)
}
diskdb.Put(key, value)
diskdb.Put(hash.Bytes(), value)
}
}
@ -433,21 +516,33 @@ func TestSyncOrdering(t *testing.T) {
triedb := NewDatabase(diskdb)
sched := NewSync(srcTrie.Hash(), diskdb, nil)
nodes, paths, _ := sched.Missing(1)
queue := append([]common.Hash{}, nodes...)
reqs := append([]SyncPath{}, paths...)
for len(queue) > 0 {
results := make([]SyncResult, len(queue))
for i, hash := range queue {
data, err := srcDb.Node(hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
// The code requests are ignored here since there is no code
// at the testing trie.
var (
reqs []SyncPath
elements []trieElement
)
paths, nodes, _ := sched.Missing(1)
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
reqs = append(reqs, NewSyncPath([]byte(paths[i])))
}
results[i] = SyncResult{hash, data}
for len(elements) > 0 {
results := make([]NodeSyncResult, len(elements))
for i, element := range elements {
data, err := srcDb.Node(element.hash)
if err != nil {
t.Fatalf("failed to retrieve node data for %x: %v", element.hash, err)
}
results[i] = NodeSyncResult{element.path, data}
}
for _, result := range results {
if err := sched.Process(result); err != nil {
if err := sched.ProcessNode(result); err != nil {
t.Fatalf("failed to process result %v", err)
}
}
@ -457,9 +552,16 @@ func TestSyncOrdering(t *testing.T) {
}
batch.Write()
nodes, paths, _ = sched.Missing(1)
queue = append(queue[:0], nodes...)
reqs = append(reqs, paths...)
paths, nodes, _ = sched.Missing(1)
elements = elements[:0]
for i := 0; i < len(paths); i++ {
elements = append(elements, trieElement{
path: paths[i],
hash: nodes[i],
syncPath: NewSyncPath([]byte(paths[i])),
})
reqs = append(reqs, NewSyncPath([]byte(paths[i])))
}
}
// Cross check that the two tries are in sync
checkTrieContents(t, triedb, srcTrie.Hash().Bytes(), srcData)

8
trie/trie.go
View File

@ -42,18 +42,18 @@ var (
// LeafCallback is a callback type invoked when a trie operation reaches a leaf
// node.
//
// The paths is a path tuple identifying a particular trie node either in a single
// trie (account) or a layered trie (account -> storage). Each path in the tuple
// The keys is a path tuple identifying a particular trie node either in a single
// trie (account) or a layered trie (account -> storage). Each key in the tuple
// is in the raw format(32 bytes).
//
// The hexpath is a composite hexary path identifying the trie node. All the key
// The path is a composite hexary path identifying the trie node. All the key
// bytes are converted to the hexary nibbles and composited with the parent path
// if the trie node is in a layered trie.
//
// It's used by state sync and commit to allow handling external references
// between account and storage tries. And also it's used in the state healing
// for extracting the raw states(leaf nodes) with corresponding paths.
type LeafCallback func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash) error
type LeafCallback func(keys [][]byte, path []byte, leaf []byte, parent common.Hash, parentPath []byte) error
// Trie is a Merkle Patricia Trie.
// The zero value is an empty trie with no database.

2
trie/trie_test.go
View File

@ -625,7 +625,7 @@ func BenchmarkCommitAfterHash(b *testing.B) {
benchmarkCommitAfterHash(b, nil)
})
var a types.StateAccount
onleaf := func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash) error {
onleaf := func(paths [][]byte, hexpath []byte, leaf []byte, parent common.Hash, parentPath []byte) error {
rlp.DecodeBytes(leaf, &a)
return nil
}