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core, triedb: remove destruct flag in state snapshot (#30752) 

This pull request removes the destruct flag from the state snapshot to
simplify the code.

Previously, this flag indicated that an account was removed during a
state transition, making all associated storage slots inaccessible.
Because storage deletion can involve a large number of slots, the actual
deletion is deferred until the end of the process, where it is handled
in batches.

With the deprecation of self-destruct in the Cancun fork, storage
deletions are no longer expected. Historically, the largest storage
deletion event in Ethereum was around 15 megabytes—manageable in memory.

In this pull request, the single destruct flag is replaced by a set of
deletion markers for individual storage slots. Each deleted storage slot
will now appear in the Storage set with a nil value.

This change will simplify a lot logics, such as storage accessing,
storage flushing, storage iteration and so on.
This commit is contained in:
rjl493456442 2024-11-22 16:55:43 +08:00 committed by GitHub
parent 6eeff3ee7d
commit 6485d5e3ff
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
19 changed files with 384 additions and 514 deletions
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10
core/state/snapshot/conversion.go
View File

@ -50,16 +50,6 @@ type (
leafCallbackFn func(db ethdb.KeyValueWriter, accountHash, codeHash common.Hash, stat *generateStats) (common.Hash, error)
)
// GenerateAccountTrieRoot takes an account iterator and reproduces the root hash.
func GenerateAccountTrieRoot(it AccountIterator) (common.Hash, error) {
return generateTrieRoot(nil, "", it, common.Hash{}, stackTrieGenerate, nil, newGenerateStats(), true)
}
// GenerateStorageTrieRoot takes a storage iterator and reproduces the root hash.
func GenerateStorageTrieRoot(account common.Hash, it StorageIterator) (common.Hash, error) {
return generateTrieRoot(nil, "", it, account, stackTrieGenerate, nil, newGenerateStats(), true)
}
// GenerateTrie takes the whole snapshot tree as the input, traverses all the
// accounts as well as the corresponding storages and regenerate the whole state
// (account trie + all storage tries).

117
core/state/snapshot/difflayer.go
View File

@ -30,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/rlp"
bloomfilter "github.com/holiman/bloomfilter/v2"
"golang.org/x/exp/maps"
)
var (
@ -73,23 +74,14 @@ var (
// bloom key for an account/slot. This is randomized at init(), so that the
// global population of nodes do not all display the exact same behaviour with
// regards to bloom content
bloomDestructHasherOffset = 0
bloomAccountHasherOffset = 0
bloomStorageHasherOffset = 0
bloomAccountHasherOffset = 0
bloomStorageHasherOffset = 0
)
func init() {
// Init the bloom offsets in the range [0:24] (requires 8 bytes)
bloomDestructHasherOffset = rand.Intn(25)
bloomAccountHasherOffset = rand.Intn(25)
bloomStorageHasherOffset = rand.Intn(25)
// The destruct and account blooms must be different, as the storage slots
// will check for destruction too for every bloom miss. It should not collide
// with modified accounts.
for bloomAccountHasherOffset == bloomDestructHasherOffset {
bloomAccountHasherOffset = rand.Intn(25)
}
}
// diffLayer represents a collection of modifications made to a state snapshot
@ -106,29 +98,16 @@ type diffLayer struct {
root common.Hash // Root hash to which this snapshot diff belongs to
stale atomic.Bool // Signals that the layer became stale (state progressed)
// destructSet is a very special helper marker. If an account is marked as
// deleted, then it's recorded in this set. However it's allowed that an account
// is included here but still available in other sets(e.g. storageData). The
// reason is the diff layer includes all the changes in a *block*. It can
// happen that in the tx_1, account A is self-destructed while in the tx_2
// it's recreated. But we still need this marker to indicate the "old" A is
// deleted, all data in other set belongs to the "new" A.
destructSet map[common.Hash]struct{} // Keyed markers for deleted (and potentially) recreated accounts
accountList []common.Hash // List of account for iteration. If it exists, it's sorted, otherwise it's nil
accountData map[common.Hash][]byte // Keyed accounts for direct retrieval (nil means deleted)
storageList map[common.Hash][]common.Hash // List of storage slots for iterated retrievals, one per account. Any existing lists are sorted if non-nil
storageData map[common.Hash]map[common.Hash][]byte // Keyed storage slots for direct retrieval. one per account (nil means deleted)
accountList []common.Hash // List of account for iteration. If it exists, it's sorted, otherwise it's nil
storageList map[common.Hash][]common.Hash // List of storage slots for iterated retrievals, one per account. Any existing lists are sorted if non-nil
diffed *bloomfilter.Filter // Bloom filter tracking all the diffed items up to the disk layer
lock sync.RWMutex
}
// destructBloomHash is used to convert a destruct event into a 64 bit mini hash.
func destructBloomHash(h common.Hash) uint64 {
return binary.BigEndian.Uint64(h[bloomDestructHasherOffset : bloomDestructHasherOffset+8])
}
// accountBloomHash is used to convert an account hash into a 64 bit mini hash.
func accountBloomHash(h common.Hash) uint64 {
return binary.BigEndian.Uint64(h[bloomAccountHasherOffset : bloomAccountHasherOffset+8])
@ -142,12 +121,11 @@ func storageBloomHash(h0, h1 common.Hash) uint64 {
// newDiffLayer creates a new diff on top of an existing snapshot, whether that's a low
// level persistent database or a hierarchical diff already.
func newDiffLayer(parent snapshot, root common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
func newDiffLayer(parent snapshot, root common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
// Create the new layer with some pre-allocated data segments
dl := &diffLayer{
parent: parent,
root: root,
destructSet: destructs,
accountData: accounts,
storageData: storage,
storageList: make(map[common.Hash][]common.Hash),
@ -161,10 +139,7 @@ func newDiffLayer(parent snapshot, root common.Hash, destructs map[common.Hash]s
panic("unknown parent type")
}
// Sanity check that accounts or storage slots are never nil
for accountHash, blob := range accounts {
if blob == nil {
panic(fmt.Sprintf("account %#x nil", accountHash))
}
for _, blob := range accounts {
// Determine memory size and track the dirty writes
dl.memory += uint64(common.HashLength + len(blob))
snapshotDirtyAccountWriteMeter.Mark(int64(len(blob)))
@ -179,7 +154,6 @@ func newDiffLayer(parent snapshot, root common.Hash, destructs map[common.Hash]s
snapshotDirtyStorageWriteMeter.Mark(int64(len(data)))
}
}
dl.memory += uint64(len(destructs) * common.HashLength)
return dl
}
@ -204,10 +178,6 @@ func (dl *diffLayer) rebloom(origin *diskLayer) {
} else {
dl.diffed, _ = bloomfilter.New(uint64(bloomSize), uint64(bloomFuncs))
}
// Iterate over all the accounts and storage slots and index them
for hash := range dl.destructSet {
dl.diffed.AddHash(destructBloomHash(hash))
}
for hash := range dl.accountData {
dl.diffed.AddHash(accountBloomHash(hash))
}
@ -274,11 +244,8 @@ func (dl *diffLayer) AccountRLP(hash common.Hash) ([]byte, error) {
}
// Check the bloom filter first whether there's even a point in reaching into
// all the maps in all the layers below
hit := dl.diffed.ContainsHash(accountBloomHash(hash))
if !hit {
hit = dl.diffed.ContainsHash(destructBloomHash(hash))
}
var origin *diskLayer
hit := dl.diffed.ContainsHash(accountBloomHash(hash))
if !hit {
origin = dl.origin // extract origin while holding the lock
}
@ -310,18 +277,14 @@ func (dl *diffLayer) accountRLP(hash common.Hash, depth int) ([]byte, error) {
if data, ok := dl.accountData[hash]; ok {
snapshotDirtyAccountHitMeter.Mark(1)
snapshotDirtyAccountHitDepthHist.Update(int64(depth))
snapshotDirtyAccountReadMeter.Mark(int64(len(data)))
if n := len(data); n > 0 {
snapshotDirtyAccountReadMeter.Mark(int64(n))
} else {
snapshotDirtyAccountInexMeter.Mark(1)
}
snapshotBloomAccountTrueHitMeter.Mark(1)
return data, nil
}
// If the account is known locally, but deleted, return it
if _, ok := dl.destructSet[hash]; ok {
snapshotDirtyAccountHitMeter.Mark(1)
snapshotDirtyAccountHitDepthHist.Update(int64(depth))
snapshotDirtyAccountInexMeter.Mark(1)
snapshotBloomAccountTrueHitMeter.Mark(1)
return nil, nil
}
// Account unknown to this diff, resolve from parent
if diff, ok := dl.parent.(*diffLayer); ok {
return diff.accountRLP(hash, depth+1)
@ -345,11 +308,8 @@ func (dl *diffLayer) Storage(accountHash, storageHash common.Hash) ([]byte, erro
dl.lock.RUnlock()
return nil, ErrSnapshotStale
}
hit := dl.diffed.ContainsHash(storageBloomHash(accountHash, storageHash))
if !hit {
hit = dl.diffed.ContainsHash(destructBloomHash(accountHash))
}
var origin *diskLayer
hit := dl.diffed.ContainsHash(storageBloomHash(accountHash, storageHash))
if !hit {
origin = dl.origin // extract origin while holding the lock
}
@ -391,14 +351,6 @@ func (dl *diffLayer) storage(accountHash, storageHash common.Hash, depth int) ([
return data, nil
}
}
// If the account is known locally, but deleted, return an empty slot
if _, ok := dl.destructSet[accountHash]; ok {
snapshotDirtyStorageHitMeter.Mark(1)
snapshotDirtyStorageHitDepthHist.Update(int64(depth))
snapshotDirtyStorageInexMeter.Mark(1)
snapshotBloomStorageTrueHitMeter.Mark(1)
return nil, nil
}
// Storage slot unknown to this diff, resolve from parent
if diff, ok := dl.parent.(*diffLayer); ok {
return diff.storage(accountHash, storageHash, depth+1)
@ -410,8 +362,8 @@ func (dl *diffLayer) storage(accountHash, storageHash common.Hash, depth int) ([
// Update creates a new layer on top of the existing snapshot diff tree with
// the specified data items.
func (dl *diffLayer) Update(blockRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
return newDiffLayer(dl, blockRoot, destructs, accounts, storage)
func (dl *diffLayer) Update(blockRoot common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
return newDiffLayer(dl, blockRoot, accounts, storage)
}
// flatten pushes all data from this point downwards, flattening everything into
@ -436,12 +388,6 @@ func (dl *diffLayer) flatten() snapshot {
if parent.stale.Swap(true) {
panic("parent diff layer is stale") // we've flattened into the same parent from two children, boo
}
// Overwrite all the updated accounts blindly, merge the sorted list
for hash := range dl.destructSet {
parent.destructSet[hash] = struct{}{}
delete(parent.accountData, hash)
delete(parent.storageData, hash)
}
for hash, data := range dl.accountData {
parent.accountData[hash] = data
}
@ -453,17 +399,13 @@ func (dl *diffLayer) flatten() snapshot {
continue
}
// Storage exists in both parent and child, merge the slots
comboData := parent.storageData[accountHash]
for storageHash, data := range storage {
comboData[storageHash] = data
}
maps.Copy(parent.storageData[accountHash], storage)
}
// Return the combo parent
return &diffLayer{
parent: parent.parent,
origin: parent.origin,
root: dl.root,
destructSet: parent.destructSet,
accountData: parent.accountData,
storageData: parent.storageData,
storageList: make(map[common.Hash][]common.Hash),
@ -489,15 +431,7 @@ func (dl *diffLayer) AccountList() []common.Hash {
dl.lock.Lock()
defer dl.lock.Unlock()
dl.accountList = make([]common.Hash, 0, len(dl.destructSet)+len(dl.accountData))
for hash := range dl.accountData {
dl.accountList = append(dl.accountList, hash)
}
for hash := range dl.destructSet {
if _, ok := dl.accountData[hash]; !ok {
dl.accountList = append(dl.accountList, hash)
}
}
dl.accountList = maps.Keys(dl.accountData)
slices.SortFunc(dl.accountList, common.Hash.Cmp)
dl.memory += uint64(len(dl.accountList) * common.HashLength)
return dl.accountList
@ -512,18 +446,17 @@ func (dl *diffLayer) AccountList() []common.Hash {
// not empty but the flag is true.
//
// Note, the returned slice is not a copy, so do not modify it.
func (dl *diffLayer) StorageList(accountHash common.Hash) ([]common.Hash, bool) {
func (dl *diffLayer) StorageList(accountHash common.Hash) []common.Hash {
dl.lock.RLock()
_, destructed := dl.destructSet[accountHash]
if _, ok := dl.storageData[accountHash]; !ok {
// Account not tracked by this layer
dl.lock.RUnlock()
return nil, destructed
return nil
}
// If an old list already exists, return it
if list, exist := dl.storageList[accountHash]; exist {
dl.lock.RUnlock()
return list, destructed // the cached list can't be nil
return list // the cached list can't be nil
}
dl.lock.RUnlock()
@ -531,13 +464,9 @@ func (dl *diffLayer) StorageList(accountHash common.Hash) ([]common.Hash, bool)
dl.lock.Lock()
defer dl.lock.Unlock()
storageMap := dl.storageData[accountHash]
storageList := make([]common.Hash, 0, len(storageMap))
for k := range storageMap {
storageList = append(storageList, k)
}
storageList := maps.Keys(dl.storageData[accountHash])
slices.SortFunc(storageList, common.Hash.Cmp)
dl.storageList[accountHash] = storageList
dl.memory += uint64(len(dl.storageList)*common.HashLength + common.HashLength)
return storageList, destructed
return storageList
}

123
core/state/snapshot/difflayer_test.go
View File

@ -28,14 +28,6 @@ import (
"github.com/ethereum/go-ethereum/ethdb/memorydb"
)
func copyDestructs(destructs map[common.Hash]struct{}) map[common.Hash]struct{} {
copy := make(map[common.Hash]struct{})
for hash := range destructs {
copy[hash] = struct{}{}
}
return copy
}
func copyAccounts(accounts map[common.Hash][]byte) map[common.Hash][]byte {
copy := make(map[common.Hash][]byte)
for hash, blob := range accounts {
@ -58,9 +50,8 @@ func copyStorage(storage map[common.Hash]map[common.Hash][]byte) map[common.Hash
// TestMergeBasics tests some simple merges
func TestMergeBasics(t *testing.T) {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
// Fill up a parent
for i := 0; i < 100; i++ {
@ -69,7 +60,7 @@ func TestMergeBasics(t *testing.T) {
accounts[h] = data
if rand.Intn(4) == 0 {
destructs[h] = struct{}{}
accounts[h] = nil
}
if rand.Intn(2) == 0 {
accStorage := make(map[common.Hash][]byte)
@ -80,11 +71,12 @@ func TestMergeBasics(t *testing.T) {
}
}
// Add some (identical) layers on top
parent := newDiffLayer(emptyLayer(), common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
child := newDiffLayer(parent, common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
parent := newDiffLayer(emptyLayer(), common.Hash{}, copyAccounts(accounts), copyStorage(storage))
child := newDiffLayer(parent, common.Hash{}, copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyAccounts(accounts), copyStorage(storage))
child = newDiffLayer(child, common.Hash{}, copyAccounts(accounts), copyStorage(storage))
// And flatten
merged := (child.flatten()).(*diffLayer)
@ -99,18 +91,13 @@ func TestMergeBasics(t *testing.T) {
t.Errorf("accountList [2] wrong: have %v, want %v", have, want)
}
}
{ // Check account drops
if have, want := len(merged.destructSet), len(destructs); have != want {
t.Errorf("accountDrop wrong: have %v, want %v", have, want)
}
}
{ // Check storage lists
i := 0
for aHash, sMap := range storage {
if have, want := len(merged.storageList), i; have != want {
t.Errorf("[1] storageList wrong: have %v, want %v", have, want)
}
list, _ := merged.StorageList(aHash)
list := merged.StorageList(aHash)
if have, want := len(list), len(sMap); have != want {
t.Errorf("[2] StorageList() wrong: have %v, want %v", have, want)
}
@ -124,41 +111,32 @@ func TestMergeBasics(t *testing.T) {
// TestMergeDelete tests some deletion
func TestMergeDelete(t *testing.T) {
var (
storage = make(map[common.Hash]map[common.Hash][]byte)
)
storage := make(map[common.Hash]map[common.Hash][]byte)
// Fill up a parent
h1 := common.HexToHash("0x01")
h2 := common.HexToHash("0x02")
flipDrops := func() map[common.Hash]struct{} {
return map[common.Hash]struct{}{
h2: {},
}
}
flipAccs := func() map[common.Hash][]byte {
flip := func() map[common.Hash][]byte {
return map[common.Hash][]byte{
h1: randomAccount(),
h2: nil,
}
}
flopDrops := func() map[common.Hash]struct{} {
return map[common.Hash]struct{}{
h1: {},
}
}
flopAccs := func() map[common.Hash][]byte {
flop := func() map[common.Hash][]byte {
return map[common.Hash][]byte{
h1: nil,
h2: randomAccount(),
}
}
// Add some flipAccs-flopping layers on top
parent := newDiffLayer(emptyLayer(), common.Hash{}, flipDrops(), flipAccs(), storage)
child := parent.Update(common.Hash{}, flopDrops(), flopAccs(), storage)
child = child.Update(common.Hash{}, flipDrops(), flipAccs(), storage)
child = child.Update(common.Hash{}, flopDrops(), flopAccs(), storage)
child = child.Update(common.Hash{}, flipDrops(), flipAccs(), storage)
child = child.Update(common.Hash{}, flopDrops(), flopAccs(), storage)
child = child.Update(common.Hash{}, flipDrops(), flipAccs(), storage)
parent := newDiffLayer(emptyLayer(), common.Hash{}, flip(), storage)
child := parent.Update(common.Hash{}, flop(), storage)
child = child.Update(common.Hash{}, flip(), storage)
child = child.Update(common.Hash{}, flop(), storage)
child = child.Update(common.Hash{}, flip(), storage)
child = child.Update(common.Hash{}, flop(), storage)
child = child.Update(common.Hash{}, flip(), storage)
if data, _ := child.Account(h1); data == nil {
t.Errorf("last diff layer: expected %x account to be non-nil", h1)
@ -166,12 +144,7 @@ func TestMergeDelete(t *testing.T) {
if data, _ := child.Account(h2); data != nil {
t.Errorf("last diff layer: expected %x account to be nil", h2)
}
if _, ok := child.destructSet[h1]; ok {
t.Errorf("last diff layer: expected %x drop to be missing", h1)
}
if _, ok := child.destructSet[h2]; !ok {
t.Errorf("last diff layer: expected %x drop to be present", h1)
}
// And flatten
merged := (child.flatten()).(*diffLayer)
@ -181,12 +154,6 @@ func TestMergeDelete(t *testing.T) {
if data, _ := merged.Account(h2); data != nil {
t.Errorf("merged layer: expected %x account to be nil", h2)
}
if _, ok := merged.destructSet[h1]; !ok { // Note, drops stay alive until persisted to disk!
t.Errorf("merged diff layer: expected %x drop to be present", h1)
}
if _, ok := merged.destructSet[h2]; !ok { // Note, drops stay alive until persisted to disk!
t.Errorf("merged diff layer: expected %x drop to be present", h1)
}
// If we add more granular metering of memory, we can enable this again,
// but it's not implemented for now
//if have, want := merged.memory, child.memory; have != want {
@ -206,22 +173,20 @@ func TestInsertAndMerge(t *testing.T) {
)
{
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
parent = newDiffLayer(emptyLayer(), common.Hash{}, destructs, accounts, storage)
parent = newDiffLayer(emptyLayer(), common.Hash{}, accounts, storage)
}
{
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
accounts[acc] = randomAccount()
storage[acc] = make(map[common.Hash][]byte)
storage[acc][slot] = []byte{0x01}
child = newDiffLayer(parent, common.Hash{}, destructs, accounts, storage)
child = newDiffLayer(parent, common.Hash{}, accounts, storage)
}
// And flatten
merged := (child.flatten()).(*diffLayer)
@ -250,14 +215,13 @@ func BenchmarkSearch(b *testing.B) {
// First, we set up 128 diff layers, with 1K items each
fill := func(parent snapshot) *diffLayer {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
for i := 0; i < 10000; i++ {
accounts[randomHash()] = randomAccount()
}
return newDiffLayer(parent, common.Hash{}, destructs, accounts, storage)
return newDiffLayer(parent, common.Hash{}, accounts, storage)
}
var layer snapshot
layer = emptyLayer()
@ -286,9 +250,8 @@ func BenchmarkSearchSlot(b *testing.B) {
accountRLP := randomAccount()
fill := func(parent snapshot) *diffLayer {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
accounts[accountKey] = accountRLP
@ -299,7 +262,7 @@ func BenchmarkSearchSlot(b *testing.B) {
accStorage[randomHash()] = value
storage[accountKey] = accStorage
}
return newDiffLayer(parent, common.Hash{}, destructs, accounts, storage)
return newDiffLayer(parent, common.Hash{}, accounts, storage)
}
var layer snapshot
layer = emptyLayer()
@ -320,9 +283,8 @@ func BenchmarkSearchSlot(b *testing.B) {
func BenchmarkFlatten(b *testing.B) {
fill := func(parent snapshot) *diffLayer {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
for i := 0; i < 100; i++ {
accountKey := randomHash()
@ -336,7 +298,7 @@ func BenchmarkFlatten(b *testing.B) {
}
storage[accountKey] = accStorage
}
return newDiffLayer(parent, common.Hash{}, destructs, accounts, storage)
return newDiffLayer(parent, common.Hash{}, accounts, storage)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
@ -369,9 +331,8 @@ func BenchmarkFlatten(b *testing.B) {
func BenchmarkJournal(b *testing.B) {
fill := func(parent snapshot) *diffLayer {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
for i := 0; i < 200; i++ {
accountKey := randomHash()
@ -385,7 +346,7 @@ func BenchmarkJournal(b *testing.B) {
}
storage[accountKey] = accStorage
}
return newDiffLayer(parent, common.Hash{}, destructs, accounts, storage)
return newDiffLayer(parent, common.Hash{}, accounts, storage)
}
layer := snapshot(emptyLayer())
for i := 1; i < 128; i++ {

4
core/state/snapshot/disklayer.go
View File

@ -180,8 +180,8 @@ func (dl *diskLayer) Storage(accountHash, storageHash common.Hash) ([]byte, erro
// Update creates a new layer on top of the existing snapshot diff tree with
// the specified data items. Note, the maps are retained by the method to avoid
// copying everything.
func (dl *diskLayer) Update(blockHash common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
return newDiffLayer(dl, blockHash, destructs, accounts, storage)
func (dl *diskLayer) Update(blockHash common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
return newDiffLayer(dl, blockHash, accounts, storage)
}
// stopGeneration aborts the state snapshot generation if it is currently running.

86
core/state/snapshot/disklayer_test.go
View File

@ -117,20 +117,22 @@ func TestDiskMerge(t *testing.T) {
base.Storage(conNukeCache, conNukeCacheSlot)
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffRoot, baseRoot, map[common.Hash]struct{}{
accDelNoCache: {},
accDelCache: {},
conNukeNoCache: {},
conNukeCache: {},
}, map[common.Hash][]byte{
accModNoCache: reverse(accModNoCache[:]),
accModCache: reverse(accModCache[:]),
}, map[common.Hash]map[common.Hash][]byte{
conModNoCache: {conModNoCacheSlot: reverse(conModNoCacheSlot[:])},
conModCache: {conModCacheSlot: reverse(conModCacheSlot[:])},
conDelNoCache: {conDelNoCacheSlot: nil},
conDelCache: {conDelCacheSlot: nil},
}); err != nil {
if err := snaps.Update(diffRoot, baseRoot,
map[common.Hash][]byte{
accDelNoCache: nil,
accDelCache: nil,
conNukeNoCache: nil,
conNukeCache: nil,
accModNoCache: reverse(accModNoCache[:]),
accModCache: reverse(accModCache[:]),
}, map[common.Hash]map[common.Hash][]byte{
conNukeNoCache: {conNukeNoCacheSlot: nil},
conNukeCache: {conNukeCacheSlot: nil},
conModNoCache: {conModNoCacheSlot: reverse(conModNoCacheSlot[:])},
conModCache: {conModCacheSlot: reverse(conModCacheSlot[:])},
conDelNoCache: {conDelNoCacheSlot: nil},
conDelCache: {conDelCacheSlot: nil},
}); err != nil {
t.Fatalf("failed to update snapshot tree: %v", err)
}
if err := snaps.Cap(diffRoot, 0); err != nil {
@ -340,20 +342,27 @@ func TestDiskPartialMerge(t *testing.T) {
assertStorage(conNukeCache, conNukeCacheSlot, conNukeCacheSlot[:])
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffRoot, baseRoot, map[common.Hash]struct{}{
accDelNoCache: {},
accDelCache: {},
conNukeNoCache: {},
conNukeCache: {},
}, map[common.Hash][]byte{
accModNoCache: reverse(accModNoCache[:]),
accModCache: reverse(accModCache[:]),
}, map[common.Hash]map[common.Hash][]byte{
conModNoCache: {conModNoCacheSlot: reverse(conModNoCacheSlot[:])},
conModCache: {conModCacheSlot: reverse(conModCacheSlot[:])},
conDelNoCache: {conDelNoCacheSlot: nil},
conDelCache: {conDelCacheSlot: nil},
}); err != nil {
if err := snaps.Update(diffRoot, baseRoot,
map[common.Hash][]byte{
accDelNoCache: nil,
accDelCache: nil,
conNukeNoCache: nil,
conNukeCache: nil,
accModNoCache: reverse(accModNoCache[:]),
accModCache: reverse(accModCache[:]),
},
map[common.Hash]map[common.Hash][]byte{
conNukeNoCache: {
conNukeNoCacheSlot: nil,
},
conNukeCache: {
conNukeCacheSlot: nil,
},
conModNoCache: {conModNoCacheSlot: reverse(conModNoCacheSlot[:])},
conModCache: {conModCacheSlot: reverse(conModCacheSlot[:])},
conDelNoCache: {conDelNoCacheSlot: nil},
conDelCache: {conDelCacheSlot: nil},
}); err != nil {
t.Fatalf("test %d: failed to update snapshot tree: %v", i, err)
}
if err := snaps.Cap(diffRoot, 0); err != nil {
@ -462,9 +471,11 @@ func TestDiskGeneratorPersistence(t *testing.T) {
},
}
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffRoot, baseRoot, nil, map[common.Hash][]byte{
accTwo: accTwo[:],
}, nil); err != nil {
if err := snaps.Update(diffRoot, baseRoot,
map[common.Hash][]byte{
accTwo: accTwo[:],
}, nil,
); err != nil {
t.Fatalf("failed to update snapshot tree: %v", err)
}
if err := snaps.Cap(diffRoot, 0); err != nil {
@ -480,11 +491,14 @@ func TestDiskGeneratorPersistence(t *testing.T) {
}
// Test scenario 2, the disk layer is fully generated
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffTwoRoot, diffRoot, nil, map[common.Hash][]byte{
accThree: accThree.Bytes(),
}, map[common.Hash]map[common.Hash][]byte{
accThree: {accThreeSlot: accThreeSlot.Bytes()},
}); err != nil {
if err := snaps.Update(diffTwoRoot, diffRoot,
map[common.Hash][]byte{
accThree: accThree.Bytes(),
},
map[common.Hash]map[common.Hash][]byte{
accThree: {accThreeSlot: accThreeSlot.Bytes()},
},
); err != nil {
t.Fatalf("failed to update snapshot tree: %v", err)
}
diskLayer := snaps.layers[snaps.diskRoot()].(*diskLayer)

2
core/state/snapshot/generate_test.go
View File

@ -134,7 +134,7 @@ func checkSnapRoot(t *testing.T, snap *diskLayer, trieRoot common.Hash) {
snapRoot, err := generateTrieRoot(nil, "", accIt, common.Hash{}, stackTrieGenerate,
func(db ethdb.KeyValueWriter, accountHash, codeHash common.Hash, stat *generateStats) (common.Hash, error) {
storageIt, _ := snap.StorageIterator(accountHash, common.Hash{})
storageIt := snap.StorageIterator(accountHash, common.Hash{})
defer storageIt.Release()
hash, err := generateTrieRoot(nil, "", storageIt, accountHash, stackTrieGenerate, nil, stat, false)

17
core/state/snapshot/iterator.go
View File

@ -115,6 +115,7 @@ func (it *diffAccountIterator) Next() bool {
}
// Iterator seems to be still alive, retrieve and cache the live hash
it.curHash = it.keys[0]
// key cached, shift the iterator and notify the user of success
it.keys = it.keys[1:]
return true
@ -135,7 +136,7 @@ func (it *diffAccountIterator) Hash() common.Hash {
// This method may _fail_, if the underlying layer has been flattened between
// the call to Next and Account. That type of error will set it.Err.
// This method assumes that flattening does not delete elements from
// the accountdata mapping (writing nil into it is fine though), and will panic
// the accountData mapping (writing nil into it is fine though), and will panic
// if elements have been deleted.
//
// Note the returned account is not a copy, please don't modify it.
@ -143,10 +144,6 @@ func (it *diffAccountIterator) Account() []byte {
it.layer.lock.RLock()
blob, ok := it.layer.accountData[it.curHash]
if !ok {
if _, ok := it.layer.destructSet[it.curHash]; ok {
it.layer.lock.RUnlock()
return nil
}
panic(fmt.Sprintf("iterator referenced non-existent account: %x", it.curHash))
}
it.layer.lock.RUnlock()
@ -247,11 +244,11 @@ type diffStorageIterator struct {
// "destructed" returned. If it's true then it means the whole storage is
// destructed in this layer(maybe recreated too), don't bother deeper layer
// for storage retrieval.
func (dl *diffLayer) StorageIterator(account common.Hash, seek common.Hash) (StorageIterator, bool) {
func (dl *diffLayer) StorageIterator(account common.Hash, seek common.Hash) StorageIterator {
// Create the storage for this account even it's marked
// as destructed. The iterator is for the new one which
// just has the same address as the deleted one.
hashes, destructed := dl.StorageList(account)
hashes := dl.StorageList(account)
index := sort.Search(len(hashes), func(i int) bool {
return bytes.Compare(seek[:], hashes[i][:]) <= 0
})
@ -260,7 +257,7 @@ func (dl *diffLayer) StorageIterator(account common.Hash, seek common.Hash) (Sto
layer: dl,
account: account,
keys: hashes[index:],
}, destructed
}
}
// Next steps the iterator forward one element, returning false if exhausted.
@ -339,13 +336,13 @@ type diskStorageIterator struct {
// If the whole storage is destructed, then all entries in the disk
// layer are deleted already. So the "destructed" flag returned here
// is always false.
func (dl *diskLayer) StorageIterator(account common.Hash, seek common.Hash) (StorageIterator, bool) {
func (dl *diskLayer) StorageIterator(account common.Hash, seek common.Hash) StorageIterator {
pos := common.TrimRightZeroes(seek[:])
return &diskStorageIterator{
layer: dl,
account: account,
it: dl.diskdb.NewIterator(append(rawdb.SnapshotStoragePrefix, account.Bytes()...), pos),
}, false
}
}
// Next steps the iterator forward one element, returning false if exhausted.

33
core/state/snapshot/iterator_binary.go
View File

@ -67,44 +67,17 @@ func (dl *diffLayer) initBinaryAccountIterator(seek common.Hash) Iterator {
func (dl *diffLayer) initBinaryStorageIterator(account, seek common.Hash) Iterator {
parent, ok := dl.parent.(*diffLayer)
if !ok {
// If the storage in this layer is already destructed, discard all
// deeper layers but still return a valid single-branch iterator.
a, destructed := dl.StorageIterator(account, seek)
if destructed {
l := &binaryIterator{
a: a,
account: account,
}
l.aDone = !l.a.Next()
l.bDone = true
return l
}
// The parent is disk layer, don't need to take care "destructed"
// anymore.
b, _ := dl.Parent().StorageIterator(account, seek)
l := &binaryIterator{
a: a,
b: b,
a: dl.StorageIterator(account, seek),
b: dl.Parent().StorageIterator(account, seek),
account: account,
}
l.aDone = !l.a.Next()
l.bDone = !l.b.Next()
return l
}
// If the storage in this layer is already destructed, discard all
// deeper layers but still return a valid single-branch iterator.
a, destructed := dl.StorageIterator(account, seek)
if destructed {
l := &binaryIterator{
a: a,
account: account,
}
l.aDone = !l.a.Next()
l.bDone = true
return l
}
l := &binaryIterator{
a: a,
a: dl.StorageIterator(account, seek),
b: parent.initBinaryStorageIterator(account, seek),
account: account,
}

10
core/state/snapshot/iterator_fast.go
View File

@ -90,18 +90,10 @@ func newFastIterator(tree *Tree, root common.Hash, account common.Hash, seek com
priority: depth,
})
} else {
// If the whole storage is destructed in this layer, don't
// bother deeper layer anymore. But we should still keep
// the iterator for this layer, since the iterator can contain
// some valid slots which belongs to the re-created account.
it, destructed := current.StorageIterator(account, seek)
fi.iterators = append(fi.iterators, &weightedIterator{
it: it,
it: current.StorageIterator(account, seek),
priority: depth,
})
if destructed {
break
}
}
current = current.Parent()
}

126
core/state/snapshot/iterator_test.go
View File

@ -32,9 +32,8 @@ import (
// TestAccountIteratorBasics tests some simple single-layer(diff and disk) iteration
func TestAccountIteratorBasics(t *testing.T) {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
accounts = make(map[common.Hash][]byte)
storage = make(map[common.Hash]map[common.Hash][]byte)
)
// Fill up a parent
for i := 0; i < 100; i++ {
@ -42,9 +41,6 @@ func TestAccountIteratorBasics(t *testing.T) {
data := randomAccount()
accounts[h] = data
if rand.Intn(4) == 0 {
destructs[h] = struct{}{}
}
if rand.Intn(2) == 0 {
accStorage := make(map[common.Hash][]byte)
value := make([]byte, 32)
@ -54,7 +50,7 @@ func TestAccountIteratorBasics(t *testing.T) {
}
}
// Add some (identical) layers on top
diffLayer := newDiffLayer(emptyLayer(), common.Hash{}, copyDestructs(destructs), copyAccounts(accounts), copyStorage(storage))
diffLayer := newDiffLayer(emptyLayer(), common.Hash{}, copyAccounts(accounts), copyStorage(storage))
it := diffLayer.AccountIterator(common.Hash{})
verifyIterator(t, 100, it, verifyNothing) // Nil is allowed for single layer iterator
@ -95,15 +91,15 @@ func TestStorageIteratorBasics(t *testing.T) {
nilStorage[h] = nilstorage
}
// Add some (identical) layers on top
diffLayer := newDiffLayer(emptyLayer(), common.Hash{}, nil, copyAccounts(accounts), copyStorage(storage))
diffLayer := newDiffLayer(emptyLayer(), common.Hash{}, copyAccounts(accounts), copyStorage(storage))
for account := range accounts {
it, _ := diffLayer.StorageIterator(account, common.Hash{})
it := diffLayer.StorageIterator(account, common.Hash{})
verifyIterator(t, 100, it, verifyNothing) // Nil is allowed for single layer iterator
}
diskLayer := diffToDisk(diffLayer)
for account := range accounts {
it, _ := diskLayer.StorageIterator(account, common.Hash{})
it := diskLayer.StorageIterator(account, common.Hash{})
verifyIterator(t, 100-nilStorage[account], it, verifyNothing) // Nil is allowed for single layer iterator
}
}
@ -225,13 +221,13 @@ func TestAccountIteratorTraversal(t *testing.T) {
},
}
// Stack three diff layers on top with various overlaps
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
// Verify the single and multi-layer iterators
@ -272,19 +268,19 @@ func TestStorageIteratorTraversal(t *testing.T) {
},
}
// Stack three diff layers on top with various overlaps
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x01", "0x02", "0x03"}}, nil))
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x04", "0x05", "0x06"}}, nil))
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x01", "0x02", "0x03"}}, nil))
// Verify the single and multi-layer iterators
head := snaps.Snapshot(common.HexToHash("0x04"))
diffIter, _ := head.(snapshot).StorageIterator(common.HexToHash("0xaa"), common.Hash{})
diffIter := head.(snapshot).StorageIterator(common.HexToHash("0xaa"), common.Hash{})
verifyIterator(t, 3, diffIter, verifyNothing)
verifyIterator(t, 6, head.(*diffLayer).newBinaryStorageIterator(common.HexToHash("0xaa"), common.Hash{}), verifyStorage)
@ -357,14 +353,14 @@ func TestAccountIteratorTraversalValues(t *testing.T) {
}
}
// Assemble a stack of snapshots from the account layers
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, a, nil)
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil, b, nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil, c, nil)
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), nil, d, nil)
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), nil, e, nil)
snaps.Update(common.HexToHash("0x07"), common.HexToHash("0x06"), nil, f, nil)
snaps.Update(common.HexToHash("0x08"), common.HexToHash("0x07"), nil, g, nil)
snaps.Update(common.HexToHash("0x09"), common.HexToHash("0x08"), nil, h, nil)
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), a, nil)
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), b, nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), c, nil)
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), d, nil)
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), e, nil)
snaps.Update(common.HexToHash("0x07"), common.HexToHash("0x06"), f, nil)
snaps.Update(common.HexToHash("0x08"), common.HexToHash("0x07"), g, nil)
snaps.Update(common.HexToHash("0x09"), common.HexToHash("0x08"), h, nil)
it, _ := snaps.AccountIterator(common.HexToHash("0x09"), common.Hash{})
head := snaps.Snapshot(common.HexToHash("0x09"))
@ -456,14 +452,14 @@ func TestStorageIteratorTraversalValues(t *testing.T) {
}
}
// Assemble a stack of snapshots from the account layers
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, randomAccountSet("0xaa"), wrapStorage(a))
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil, randomAccountSet("0xaa"), wrapStorage(b))
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil, randomAccountSet("0xaa"), wrapStorage(c))
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), nil, randomAccountSet("0xaa"), wrapStorage(d))
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), nil, randomAccountSet("0xaa"), wrapStorage(e))
snaps.Update(common.HexToHash("0x07"), common.HexToHash("0x06"), nil, randomAccountSet("0xaa"), wrapStorage(e))
snaps.Update(common.HexToHash("0x08"), common.HexToHash("0x07"), nil, randomAccountSet("0xaa"), wrapStorage(g))
snaps.Update(common.HexToHash("0x09"), common.HexToHash("0x08"), nil, randomAccountSet("0xaa"), wrapStorage(h))
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), randomAccountSet("0xaa"), wrapStorage(a))
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), randomAccountSet("0xaa"), wrapStorage(b))
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), randomAccountSet("0xaa"), wrapStorage(c))
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), randomAccountSet("0xaa"), wrapStorage(d))
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), randomAccountSet("0xaa"), wrapStorage(e))
snaps.Update(common.HexToHash("0x07"), common.HexToHash("0x06"), randomAccountSet("0xaa"), wrapStorage(e))
snaps.Update(common.HexToHash("0x08"), common.HexToHash("0x07"), randomAccountSet("0xaa"), wrapStorage(g))
snaps.Update(common.HexToHash("0x09"), common.HexToHash("0x08"), randomAccountSet("0xaa"), wrapStorage(h))
it, _ := snaps.StorageIterator(common.HexToHash("0x09"), common.HexToHash("0xaa"), common.Hash{})
head := snaps.Snapshot(common.HexToHash("0x09"))
@ -526,7 +522,7 @@ func TestAccountIteratorLargeTraversal(t *testing.T) {
},
}
for i := 1; i < 128; i++ {
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(200), nil)
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), makeAccounts(200), nil)
}
// Iterate the entire stack and ensure everything is hit only once
head := snaps.Snapshot(common.HexToHash("0x80"))
@ -584,13 +580,13 @@ func testAccountIteratorFlattening(t *testing.T, newIterator func(snaps *Tree, r
},
}
// Create a stack of diffs on top
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
// Create an iterator and flatten the data from underneath it
@ -630,13 +626,13 @@ func testAccountIteratorSeek(t *testing.T, newIterator func(snaps *Tree, root, s
base.root: base,
},
}
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
// Account set is now
@ -708,13 +704,13 @@ func testStorageIteratorSeek(t *testing.T, newIterator func(snaps *Tree, root, a
},
}
// Stack three diff layers on top with various overlaps
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x01", "0x03", "0x05"}}, nil))
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x02", "0x05", "0x06"}}, nil))
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x01", "0x05", "0x08"}}, nil))
// Account set is now
@ -785,21 +781,16 @@ func testAccountIteratorDeletions(t *testing.T, newIterator func(snaps *Tree, ro
},
}
// Stack three diff layers on top with various overlaps
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
nil, randomAccountSet("0x11", "0x22", "0x33"), nil)
deleted := common.HexToHash("0x22")
destructed := map[common.Hash]struct{}{
deleted: {},
}
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
destructed, randomAccountSet("0x11", "0x33"), nil)
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), randomAccountSet("0x11", "0x22", "0x33"), nil)
set := randomAccountSet("0x11", "0x33")
set[common.HexToHash("0x22")] = nil
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), set, nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
nil, randomAccountSet("0x33", "0x44", "0x55"), nil)
randomAccountSet("0x33", "0x44", "0x55"), nil)
// The output should be 11,33,44,55
it := newIterator(snaps, common.HexToHash("0x04"), (common.Hash{}))
it := newIterator(snaps, common.HexToHash("0x04"), common.Hash{})
// Do a quick check
verifyIterator(t, 4, it, verifyAccount)
@ -813,8 +804,8 @@ func testAccountIteratorDeletions(t *testing.T, newIterator func(snaps *Tree, ro
if it.Account() == nil {
t.Errorf("iterator returned nil-value for hash %x", hash)
}
if hash == deleted {
t.Errorf("expected deleted elem %x to not be returned by iterator", deleted)
if hash == common.HexToHash("0x22") {
t.Errorf("expected deleted elem %x to not be returned by iterator", common.HexToHash("0x22"))
}
}
}
@ -846,10 +837,10 @@ func testStorageIteratorDeletions(t *testing.T, newIterator func(snaps *Tree, ro
},
}
// Stack three diff layers on top with various overlaps
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x01", "0x03", "0x05"}}, nil))
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x02", "0x04", "0x06"}}, [][]string{{"0x01", "0x03"}}))
// The output should be 02,04,05,06
@ -863,17 +854,16 @@ func testStorageIteratorDeletions(t *testing.T, newIterator func(snaps *Tree, ro
it.Release()
// Destruct the whole storage
destructed := map[common.Hash]struct{}{
common.HexToHash("0xaa"): {},
}
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), destructed, nil, nil)
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
map[common.Hash][]byte{common.HexToHash("0xaa"): nil},
randomStorageSet([]string{"0xaa"}, nil, [][]string{{"0x02", "0x04", "0x05", "0x06"}}))
it = newIterator(snaps, common.HexToHash("0x04"), common.HexToHash("0xaa"), common.Hash{})
verifyIterator(t, 0, it, verifyStorage)
it.Release()
// Re-insert the slots of the same account
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), nil,
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"),
randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x07", "0x08", "0x09"}}, nil))
// The output should be 07,08,09
@ -883,7 +873,9 @@ func testStorageIteratorDeletions(t *testing.T, newIterator func(snaps *Tree, ro
it.Release()
// Destruct the whole storage but re-create the account in the same layer
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), destructed, randomAccountSet("0xaa"), randomStorageSet([]string{"0xaa"}, [][]string{{"0x11", "0x12"}}, nil))
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"),
randomAccountSet("0xaa"),
randomStorageSet([]string{"0xaa"}, [][]string{{"0x11", "0x12"}}, [][]string{{"0x07", "0x08", "0x09"}}))
it = newIterator(snaps, common.HexToHash("0x06"), common.HexToHash("0xaa"), common.Hash{})
verifyIterator(t, 2, it, verifyStorage) // The output should be 11,12
it.Release()
@ -928,7 +920,7 @@ func BenchmarkAccountIteratorTraversal(b *testing.B) {
},
}
for i := 1; i <= 100; i++ {
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(200), nil)
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), makeAccounts(200), nil)
}
// We call this once before the benchmark, so the creation of
// sorted accountlists are not included in the results.
@ -1023,9 +1015,9 @@ func BenchmarkAccountIteratorLargeBaselayer(b *testing.B) {
base.root: base,
},
}
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, makeAccounts(2000), nil)
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), makeAccounts(2000), nil)
for i := 2; i <= 100; i++ {
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(20), nil)
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), makeAccounts(20), nil)
}
// We call this once before the benchmark, so the creation of
// sorted accountlists are not included in the results.

37
core/state/snapshot/journal.go
View File

@ -33,7 +33,9 @@ import (
"github.com/ethereum/go-ethereum/triedb"
)
const journalVersion uint64 = 0
// 0: initial version
// 1: destruct flag in diff layer is removed
const journalVersion uint64 = 1
// journalGenerator is a disk layer entry containing the generator progress marker.
type journalGenerator struct {
@ -48,11 +50,6 @@ type journalGenerator struct {
Storage uint64
}
// journalDestruct is an account deletion entry in a diffLayer's disk journal.
type journalDestruct struct {
Hash common.Hash
}
// journalAccount is an account entry in a diffLayer's disk journal.
type journalAccount struct {
Hash common.Hash
@ -109,8 +106,8 @@ func loadAndParseJournal(db ethdb.KeyValueStore, base *diskLayer) (snapshot, jou
// is not matched with disk layer; or the it's the legacy-format journal,
// etc.), we just discard all diffs and try to recover them later.
var current snapshot = base
err := iterateJournal(db, func(parent common.Hash, root common.Hash, destructSet map[common.Hash]struct{}, accountData map[common.Hash][]byte, storageData map[common.Hash]map[common.Hash][]byte) error {
current = newDiffLayer(current, root, destructSet, accountData, storageData)
err := iterateJournal(db, func(parent common.Hash, root common.Hash, accountData map[common.Hash][]byte, storageData map[common.Hash]map[common.Hash][]byte) error {
current = newDiffLayer(current, root, accountData, storageData)
return nil
})
if err != nil {
@ -238,16 +235,12 @@ func (dl *diffLayer) Journal(buffer *bytes.Buffer) (common.Hash, error) {
if err := rlp.Encode(buffer, dl.root); err != nil {
return common.Hash{}, err
}
destructs := make([]journalDestruct, 0, len(dl.destructSet))
for hash := range dl.destructSet {
destructs = append(destructs, journalDestruct{Hash: hash})
}
if err := rlp.Encode(buffer, destructs); err != nil {
return common.Hash{}, err
}
accounts := make([]journalAccount, 0, len(dl.accountData))
for hash, blob := range dl.accountData {
accounts = append(accounts, journalAccount{Hash: hash, Blob: blob})
accounts = append(accounts, journalAccount{
Hash: hash,
Blob: blob,
})
}
if err := rlp.Encode(buffer, accounts); err != nil {
return common.Hash{}, err
@ -271,7 +264,7 @@ func (dl *diffLayer) Journal(buffer *bytes.Buffer) (common.Hash, error) {
// journalCallback is a function which is invoked by iterateJournal, every
// time a difflayer is loaded from disk.
type journalCallback = func(parent common.Hash, root common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error
type journalCallback = func(parent common.Hash, root common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error
// iterateJournal iterates through the journalled difflayers, loading them from
// the database, and invoking the callback for each loaded layer.
@ -310,10 +303,8 @@ func iterateJournal(db ethdb.KeyValueReader, callback journalCallback) error {
for {
var (
root common.Hash
destructs []journalDestruct
accounts []journalAccount
storage []journalStorage
destructSet = make(map[common.Hash]struct{})
accountData = make(map[common.Hash][]byte)
storageData = make(map[common.Hash]map[common.Hash][]byte)
)
@ -325,18 +316,12 @@ func iterateJournal(db ethdb.KeyValueReader, callback journalCallback) error {
}
return fmt.Errorf("load diff root: %v", err)
}
if err := r.Decode(&destructs); err != nil {
return fmt.Errorf("load diff destructs: %v", err)
}
if err := r.Decode(&accounts); err != nil {
return fmt.Errorf("load diff accounts: %v", err)
}
if err := r.Decode(&storage); err != nil {
return fmt.Errorf("load diff storage: %v", err)
}
for _, entry := range destructs {
destructSet[entry.Hash] = struct{}{}
}
for _, entry := range accounts {
if len(entry.Blob) > 0 { // RLP loses nil-ness, but `[]byte{}` is not a valid item, so reinterpret that
accountData[entry.Hash] = entry.Blob
@ -355,7 +340,7 @@ func iterateJournal(db ethdb.KeyValueReader, callback journalCallback) error {
}
storageData[entry.Hash] = slots
}
if err := callback(parent, root, destructSet, accountData, storageData); err != nil {
if err := callback(parent, root, accountData, storageData); err != nil {
return err
}
parent = root

61
core/state/snapshot/snapshot.go
View File

@ -130,7 +130,7 @@ type snapshot interface {
// the specified data items.
//
// Note, the maps are retained by the method to avoid copying everything.
Update(blockRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer
Update(blockRoot common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer
// Journal commits an entire diff hierarchy to disk into a single journal entry.
// This is meant to be used during shutdown to persist the snapshot without
@ -145,7 +145,7 @@ type snapshot interface {
AccountIterator(seek common.Hash) AccountIterator
// StorageIterator creates a storage iterator over an arbitrary layer.
StorageIterator(account common.Hash, seek common.Hash) (StorageIterator, bool)
StorageIterator(account common.Hash, seek common.Hash) StorageIterator
}
// Config includes the configurations for snapshots.
@ -335,7 +335,7 @@ func (t *Tree) Snapshots(root common.Hash, limits int, nodisk bool) []Snapshot {
// Update adds a new snapshot into the tree, if that can be linked to an existing
// old parent. It is disallowed to insert a disk layer (the origin of all).
func (t *Tree) Update(blockRoot common.Hash, parentRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
func (t *Tree) Update(blockRoot common.Hash, parentRoot common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
// Reject noop updates to avoid self-loops in the snapshot tree. This is a
// special case that can only happen for Clique networks where empty blocks
// don't modify the state (0 block subsidy).
@ -350,7 +350,7 @@ func (t *Tree) Update(blockRoot common.Hash, parentRoot common.Hash, destructs m
if parent == nil {
return fmt.Errorf("parent [%#x] snapshot missing", parentRoot)
}
snap := parent.(snapshot).Update(blockRoot, destructs, accounts, storage)
snap := parent.(snapshot).Update(blockRoot, accounts, storage)
// Save the new snapshot for later
t.lock.Lock()
@ -539,35 +539,6 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
base.stale = true
base.lock.Unlock()
// Destroy all the destructed accounts from the database
for hash := range bottom.destructSet {
// Skip any account not covered yet by the snapshot
if base.genMarker != nil && bytes.Compare(hash[:], base.genMarker) > 0 {
continue
}
// Remove all storage slots
rawdb.DeleteAccountSnapshot(batch, hash)
base.cache.Set(hash[:], nil)
it := rawdb.IterateStorageSnapshots(base.diskdb, hash)
for it.Next() {
key := it.Key()
batch.Delete(key)
base.cache.Del(key[1:])
snapshotFlushStorageItemMeter.Mark(1)
// Ensure we don't delete too much data blindly (contract can be
// huge). It's ok to flush, the root will go missing in case of a
// crash and we'll detect and regenerate the snapshot.
if batch.ValueSize() > 64*1024*1024 {
if err := batch.Write(); err != nil {
log.Crit("Failed to write storage deletions", "err", err)
}
batch.Reset()
}
}
it.Release()
}
// Push all updated accounts into the database
for hash, data := range bottom.accountData {
// Skip any account not covered yet by the snapshot
@ -575,10 +546,14 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
continue
}
// Push the account to disk
rawdb.WriteAccountSnapshot(batch, hash, data)
base.cache.Set(hash[:], data)
snapshotCleanAccountWriteMeter.Mark(int64(len(data)))
if len(data) != 0 {
rawdb.WriteAccountSnapshot(batch, hash, data)
base.cache.Set(hash[:], data)
snapshotCleanAccountWriteMeter.Mark(int64(len(data)))
} else {
rawdb.DeleteAccountSnapshot(batch, hash)
base.cache.Set(hash[:], nil)
}
snapshotFlushAccountItemMeter.Mark(1)
snapshotFlushAccountSizeMeter.Mark(int64(len(data)))
@ -587,7 +562,7 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
// the snapshot.
if batch.ValueSize() > 64*1024*1024 {
if err := batch.Write(); err != nil {
log.Crit("Failed to write storage deletions", "err", err)
log.Crit("Failed to write state changes", "err", err)
}
batch.Reset()
}
@ -616,6 +591,16 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
}
snapshotFlushStorageItemMeter.Mark(1)
snapshotFlushStorageSizeMeter.Mark(int64(len(data)))
// Ensure we don't write too much data blindly. It's ok to flush, the
// root will go missing in case of a crash and we'll detect and regen
// the snapshot.
if batch.ValueSize() > 64*1024*1024 {
if err := batch.Write(); err != nil {
log.Crit("Failed to write state changes", "err", err)
}
batch.Reset()
}
}
}
// Update the snapshot block marker and write any remainder data

30
core/state/snapshot/snapshot_test.go
View File

@ -107,7 +107,7 @@ func TestDiskLayerExternalInvalidationFullFlatten(t *testing.T) {
accounts := map[common.Hash][]byte{
common.HexToHash("0xa1"): randomAccount(),
}
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if n := len(snaps.layers); n != 2 {
@ -151,10 +151,10 @@ func TestDiskLayerExternalInvalidationPartialFlatten(t *testing.T) {
accounts := map[common.Hash][]byte{
common.HexToHash("0xa1"): randomAccount(),
}
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if err := snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if n := len(snaps.layers); n != 3 {
@ -203,13 +203,13 @@ func TestDiffLayerExternalInvalidationPartialFlatten(t *testing.T) {
accounts := map[common.Hash][]byte{
common.HexToHash("0xa1"): randomAccount(),
}
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if err := snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if err := snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil, accounts, nil); err != nil {
if err := snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), accounts, nil); err != nil {
t.Fatalf("failed to create a diff layer: %v", err)
}
if n := len(snaps.layers); n != 4 {
@ -263,12 +263,12 @@ func TestPostCapBasicDataAccess(t *testing.T) {
},
}
// The lowest difflayer
snaps.Update(common.HexToHash("0xa1"), common.HexToHash("0x01"), nil, setAccount("0xa1"), nil)
snaps.Update(common.HexToHash("0xa2"), common.HexToHash("0xa1"), nil, setAccount("0xa2"), nil)
snaps.Update(common.HexToHash("0xb2"), common.HexToHash("0xa1"), nil, setAccount("0xb2"), nil)
snaps.Update(common.HexToHash("0xa1"), common.HexToHash("0x01"), setAccount("0xa1"), nil)
snaps.Update(common.HexToHash("0xa2"), common.HexToHash("0xa1"), setAccount("0xa2"), nil)
snaps.Update(common.HexToHash("0xb2"), common.HexToHash("0xa1"), setAccount("0xb2"), nil)
snaps.Update(common.HexToHash("0xa3"), common.HexToHash("0xa2"), nil, setAccount("0xa3"), nil)
snaps.Update(common.HexToHash("0xb3"), common.HexToHash("0xb2"), nil, setAccount("0xb3"), nil)
snaps.Update(common.HexToHash("0xa3"), common.HexToHash("0xa2"), setAccount("0xa3"), nil)
snaps.Update(common.HexToHash("0xb3"), common.HexToHash("0xb2"), setAccount("0xb3"), nil)
// checkExist verifies if an account exists in a snapshot
checkExist := func(layer *diffLayer, key string) error {
@ -363,7 +363,7 @@ func TestSnaphots(t *testing.T) {
)
for i := 0; i < 129; i++ {
head = makeRoot(uint64(i + 2))
snaps.Update(head, last, nil, setAccount(fmt.Sprintf("%d", i+2)), nil)
snaps.Update(head, last, setAccount(fmt.Sprintf("%d", i+2)), nil)
last = head
snaps.Cap(head, 128) // 130 layers (128 diffs + 1 accumulator + 1 disk)
}
@ -456,9 +456,9 @@ func TestReadStateDuringFlattening(t *testing.T) {
},
}
// 4 layers in total, 3 diff layers and 1 disk layers
snaps.Update(common.HexToHash("0xa1"), common.HexToHash("0x01"), nil, setAccount("0xa1"), nil)
snaps.Update(common.HexToHash("0xa2"), common.HexToHash("0xa1"), nil, setAccount("0xa2"), nil)
snaps.Update(common.HexToHash("0xa3"), common.HexToHash("0xa2"), nil, setAccount("0xa3"), nil)
snaps.Update(common.HexToHash("0xa1"), common.HexToHash("0x01"), setAccount("0xa1"), nil)
snaps.Update(common.HexToHash("0xa2"), common.HexToHash("0xa1"), setAccount("0xa2"), nil)
snaps.Update(common.HexToHash("0xa3"), common.HexToHash("0xa2"), setAccount("0xa3"), nil)
// Obtain the topmost snapshot handler for state accessing
snap := snaps.Snapshot(common.HexToHash("0xa3"))

12
core/state/snapshot/utils.go
View File

@ -75,7 +75,7 @@ func checkDanglingDiskStorage(chaindb ethdb.KeyValueStore) error {
func checkDanglingMemStorage(db ethdb.KeyValueStore) error {
start := time.Now()
log.Info("Checking dangling journalled storage")
err := iterateJournal(db, func(pRoot, root common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
err := iterateJournal(db, func(pRoot, root common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
for accHash := range storage {
if _, ok := accounts[accHash]; !ok {
log.Error("Dangling storage - missing account", "account", fmt.Sprintf("%#x", accHash), "root", root)
@ -119,12 +119,11 @@ func CheckJournalAccount(db ethdb.KeyValueStore, hash common.Hash) error {
}
var depth = 0
return iterateJournal(db, func(pRoot, root common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
return iterateJournal(db, func(pRoot, root common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) error {
_, a := accounts[hash]
_, b := destructs[hash]
_, c := storage[hash]
_, b := storage[hash]
depth++
if !a && !b && !c {
if !a && !b {
return nil
}
fmt.Printf("Disklayer+%d: Root: %x, parent %x\n", depth, root, pRoot)
@ -138,9 +137,6 @@ func CheckJournalAccount(db ethdb.KeyValueStore, hash common.Hash) error {
fmt.Printf("\taccount.root: %x\n", account.Root)
fmt.Printf("\taccount.codehash: %x\n", account.CodeHash)
}
if _, ok := destructs[hash]; ok {
fmt.Printf("\t Destructed!")
}
if data, ok := storage[hash]; ok {
fmt.Printf("\tStorage\n")
for k, v := range data {

69
core/state/statedb.go
View File

@ -932,16 +932,17 @@ func (s *StateDB) clearJournalAndRefund() {
// of a specific account. It leverages the associated state snapshot for fast
// storage iteration and constructs trie node deletion markers by creating
// stack trie with iterated slots.
func (s *StateDB) fastDeleteStorage(snaps *snapshot.Tree, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, *trienode.NodeSet, error) {
func (s *StateDB) fastDeleteStorage(snaps *snapshot.Tree, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, map[common.Hash][]byte, *trienode.NodeSet, error) {
iter, err := snaps.StorageIterator(s.originalRoot, addrHash, common.Hash{})
if err != nil {
return nil, nil, err
return nil, nil, nil, err
}
defer iter.Release()
var (
nodes = trienode.NewNodeSet(addrHash)
slots = make(map[common.Hash][]byte)
nodes = trienode.NewNodeSet(addrHash) // the set for trie node mutations (value is nil)
storages = make(map[common.Hash][]byte) // the set for storage mutations (value is nil)
storageOrigins = make(map[common.Hash][]byte) // the set for tracking the original value of slot
)
stack := trie.NewStackTrie(func(path []byte, hash common.Hash, blob []byte) {
nodes.AddNode(path, trienode.NewDeleted())
@ -949,42 +950,47 @@ func (s *StateDB) fastDeleteStorage(snaps *snapshot.Tree, addrHash common.Hash,
for iter.Next() {
slot := common.CopyBytes(iter.Slot())
if err := iter.Error(); err != nil { // error might occur after Slot function
return nil, nil, err
return nil, nil, nil, err
}
slots[iter.Hash()] = slot
key := iter.Hash()
storages[key] = nil
storageOrigins[key] = slot
if err := stack.Update(iter.Hash().Bytes(), slot); err != nil {
return nil, nil, err
if err := stack.Update(key.Bytes(), slot); err != nil {
return nil, nil, nil, err
}
}
if err := iter.Error(); err != nil { // error might occur during iteration
return nil, nil, err
return nil, nil, nil, err
}
if stack.Hash() != root {
return nil, nil, fmt.Errorf("snapshot is not matched, exp %x, got %x", root, stack.Hash())
return nil, nil, nil, fmt.Errorf("snapshot is not matched, exp %x, got %x", root, stack.Hash())
}
return slots, nodes, nil
return storages, storageOrigins, nodes, nil
}
// slowDeleteStorage serves as a less-efficient alternative to "fastDeleteStorage,"
// employed when the associated state snapshot is not available. It iterates the
// storage slots along with all internal trie nodes via trie directly.
func (s *StateDB) slowDeleteStorage(addr common.Address, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, *trienode.NodeSet, error) {
func (s *StateDB) slowDeleteStorage(addr common.Address, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, map[common.Hash][]byte, *trienode.NodeSet, error) {
tr, err := s.db.OpenStorageTrie(s.originalRoot, addr, root, s.trie)
if err != nil {
return nil, nil, fmt.Errorf("failed to open storage trie, err: %w", err)
return nil, nil, nil, fmt.Errorf("failed to open storage trie, err: %w", err)
}
it, err := tr.NodeIterator(nil)
if err != nil {
return nil, nil, fmt.Errorf("failed to open storage iterator, err: %w", err)
return nil, nil, nil, fmt.Errorf("failed to open storage iterator, err: %w", err)
}
var (
nodes = trienode.NewNodeSet(addrHash)
slots = make(map[common.Hash][]byte)
nodes = trienode.NewNodeSet(addrHash) // the set for trie node mutations (value is nil)
storages = make(map[common.Hash][]byte) // the set for storage mutations (value is nil)
storageOrigins = make(map[common.Hash][]byte) // the set for tracking the original value of slot
)
for it.Next(true) {
if it.Leaf() {
slots[common.BytesToHash(it.LeafKey())] = common.CopyBytes(it.LeafBlob())
key := common.BytesToHash(it.LeafKey())
storages[key] = nil
storageOrigins[key] = common.CopyBytes(it.LeafBlob())
continue
}
if it.Hash() == (common.Hash{}) {
@ -993,35 +999,36 @@ func (s *StateDB) slowDeleteStorage(addr common.Address, addrHash common.Hash, r
nodes.AddNode(it.Path(), trienode.NewDeleted())
}
if err := it.Error(); err != nil {
return nil, nil, err
return nil, nil, nil, err
}
return slots, nodes, nil
return storages, storageOrigins, nodes, nil
}
// deleteStorage is designed to delete the storage trie of a designated account.
// The function will make an attempt to utilize an efficient strategy if the
// associated state snapshot is reachable; otherwise, it will resort to a less
// efficient approach.
func (s *StateDB) deleteStorage(addr common.Address, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, *trienode.NodeSet, error) {
func (s *StateDB) deleteStorage(addr common.Address, addrHash common.Hash, root common.Hash) (map[common.Hash][]byte, map[common.Hash][]byte, *trienode.NodeSet, error) {
var (
err error
slots map[common.Hash][]byte
nodes *trienode.NodeSet
err error
nodes *trienode.NodeSet // the set for trie node mutations (value is nil)
storages map[common.Hash][]byte // the set for storage mutations (value is nil)
storageOrigins map[common.Hash][]byte // the set for tracking the original value of slot
)
// The fast approach can be failed if the snapshot is not fully
// generated, or it's internally corrupted. Fallback to the slow
// one just in case.
snaps := s.db.Snapshot()
if snaps != nil {
slots, nodes, err = s.fastDeleteStorage(snaps, addrHash, root)
storages, storageOrigins, nodes, err = s.fastDeleteStorage(snaps, addrHash, root)
}
if snaps == nil || err != nil {
slots, nodes, err = s.slowDeleteStorage(addr, addrHash, root)
storages, storageOrigins, nodes, err = s.slowDeleteStorage(addr, addrHash, root)
}
if err != nil {
return nil, nil, err
return nil, nil, nil, err
}
return slots, nodes, nil
return storages, storageOrigins, nodes, nil
}
// handleDestruction processes all destruction markers and deletes the account
@ -1068,16 +1075,16 @@ func (s *StateDB) handleDestruction() (map[common.Hash]*accountDelete, []*trieno
deletes[addrHash] = op
// Short circuit if the origin storage was empty.
if prev.Root == types.EmptyRootHash || s.db.TrieDB().IsVerkle() {
continue
}
// Remove storage slots belonging to the account.
slots, set, err := s.deleteStorage(addr, addrHash, prev.Root)
storages, storagesOrigin, set, err := s.deleteStorage(addr, addrHash, prev.Root)
if err != nil {
return nil, nil, fmt.Errorf("failed to delete storage, err: %w", err)
}
op.storagesOrigin = slots
op.storages = storages
op.storagesOrigin = storagesOrigin
// Aggregate the associated trie node changes.
nodes = append(nodes, set)
@ -1267,7 +1274,7 @@ func (s *StateDB) commitAndFlush(block uint64, deleteEmptyObjects bool) (*stateU
// If snapshotting is enabled, update the snapshot tree with this new version
if snap := s.db.Snapshot(); snap != nil && snap.Snapshot(ret.originRoot) != nil {
start := time.Now()
if err := snap.Update(ret.root, ret.originRoot, ret.destructs, ret.accounts, ret.storages); err != nil {
if err := snap.Update(ret.root, ret.originRoot, ret.accounts, ret.storages); err != nil {
log.Warn("Failed to update snapshot tree", "from", ret.originRoot, "to", ret.root, "err", err)
}
// Keep 128 diff layers in the memory, persistent layer is 129th.

105
core/state/statedb_fuzz_test.go
View File

@ -21,6 +21,7 @@ import (
"encoding/binary"
"errors"
"fmt"
"maps"
"math"
"math/rand"
"reflect"
@ -176,24 +177,16 @@ func (test *stateTest) String() string {
func (test *stateTest) run() bool {
var (
roots []common.Hash
accountList []map[common.Address][]byte
storageList []map[common.Address]map[common.Hash][]byte
copyUpdate = func(update *stateUpdate) {
accounts := make(map[common.Address][]byte, len(update.accountsOrigin))
for key, val := range update.accountsOrigin {
accounts[key] = common.CopyBytes(val)
}
accountList = append(accountList, accounts)
storages := make(map[common.Address]map[common.Hash][]byte, len(update.storagesOrigin))
for addr, subset := range update.storagesOrigin {
storages[addr] = make(map[common.Hash][]byte, len(subset))
for key, val := range subset {
storages[addr][key] = common.CopyBytes(val)
}
}
storageList = append(storageList, storages)
roots []common.Hash
accounts []map[common.Hash][]byte
accountOrigin []map[common.Address][]byte
storages []map[common.Hash]map[common.Hash][]byte
storageOrigin []map[common.Address]map[common.Hash][]byte
copyUpdate = func(update *stateUpdate) {
accounts = append(accounts, maps.Clone(update.accounts))
accountOrigin = append(accountOrigin, maps.Clone(update.accountsOrigin))
storages = append(storages, maps.Clone(update.storages))
storageOrigin = append(storageOrigin, maps.Clone(update.storagesOrigin))
}
disk = rawdb.NewMemoryDatabase()
tdb = triedb.NewDatabase(disk, &triedb.Config{PathDB: pathdb.Defaults})
@ -250,7 +243,7 @@ func (test *stateTest) run() bool {
if i != 0 {
root = roots[i-1]
}
test.err = test.verify(root, roots[i], tdb, accountList[i], storageList[i])
test.err = test.verify(root, roots[i], tdb, accounts[i], accountOrigin[i], storages[i], storageOrigin[i])
if test.err != nil {
return false
}
@ -265,7 +258,7 @@ func (test *stateTest) run() bool {
// - the account was indeed not present in trie
// - the account is present in new trie, nil->nil is regarded as invalid
// - the slots transition is correct
func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Database, otr, ntr *trie.Trie, addr common.Address, slots map[common.Hash][]byte) error {
func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Database, otr, ntr *trie.Trie, addr common.Address, account []byte, storages map[common.Hash][]byte, storagesOrigin map[common.Hash][]byte) error {
// Verify account change
addrHash := crypto.Keccak256Hash(addr.Bytes())
oBlob, err := otr.Get(addrHash.Bytes())
@ -282,6 +275,13 @@ func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Databa
if len(nBlob) == 0 {
return fmt.Errorf("missing account in new trie, %x", addrHash)
}
full, err := types.FullAccountRLP(account)
if err != nil {
return err
}
if !bytes.Equal(nBlob, full) {
return fmt.Errorf("unexpected account data, want: %v, got: %v", full, nBlob)
}
// Verify storage changes
var nAcct types.StateAccount
@ -290,7 +290,10 @@ func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Databa
}
// Account has no slot, empty slot set is expected
if nAcct.Root == types.EmptyRootHash {
if len(slots) != 0 {
if len(storagesOrigin) != 0 {
return fmt.Errorf("unexpected slot changes %x", addrHash)
}
if len(storages) != 0 {
return fmt.Errorf("unexpected slot changes %x", addrHash)
}
return nil
@ -300,9 +303,22 @@ func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Databa
if err != nil {
return err
}
for key, val := range slots {
for key, val := range storagesOrigin {
if _, exist := storages[key]; !exist {
return errors.New("storage data is not found")
}
got, err := st.Get(key.Bytes())
if err != nil {
return err
}
if !bytes.Equal(got, storages[key]) {
return fmt.Errorf("unexpected storage data, want: %v, got: %v", storages[key], got)
}
st.Update(key.Bytes(), val)
}
if len(storagesOrigin) != len(storages) {
return fmt.Errorf("extra storage found, want: %d, got: %d", len(storagesOrigin), len(storages))
}
if st.Hash() != types.EmptyRootHash {
return errors.New("invalid slot changes")
}
@ -316,7 +332,7 @@ func (test *stateTest) verifyAccountCreation(next common.Hash, db *triedb.Databa
// - the account was indeed present in trie
// - the account in old trie matches the provided value
// - the slots transition is correct
func (test *stateTest) verifyAccountUpdate(next common.Hash, db *triedb.Database, otr, ntr *trie.Trie, addr common.Address, origin []byte, slots map[common.Hash][]byte) error {
func (test *stateTest) verifyAccountUpdate(next common.Hash, db *triedb.Database, otr, ntr *trie.Trie, addr common.Address, account []byte, accountOrigin []byte, storages map[common.Hash][]byte, storageOrigin map[common.Hash][]byte) error {
// Verify account change
addrHash := crypto.Keccak256Hash(addr.Bytes())
oBlob, err := otr.Get(addrHash.Bytes())
@ -330,14 +346,23 @@ func (test *stateTest) verifyAccountUpdate(next common.Hash, db *triedb.Database
if len(oBlob) == 0 {
return fmt.Errorf("missing account in old trie, %x", addrHash)
}
full, err := types.FullAccountRLP(origin)
full, err := types.FullAccountRLP(accountOrigin)
if err != nil {
return err
}
if !bytes.Equal(full, oBlob) {
return fmt.Errorf("account value is not matched, %x", addrHash)
}
if len(nBlob) == 0 {
if len(account) != 0 {
return errors.New("unexpected account data")
}
} else {
full, _ = types.FullAccountRLP(account)
if !bytes.Equal(full, nBlob) {
return fmt.Errorf("unexpected account data, %x, want %v, got: %v", addrHash, full, nBlob)
}
}
// Decode accounts
var (
oAcct types.StateAccount
@ -361,16 +386,29 @@ func (test *stateTest) verifyAccountUpdate(next common.Hash, db *triedb.Database
if err != nil {
return err
}
for key, val := range slots {
for key, val := range storageOrigin {
if _, exist := storages[key]; !exist {
return errors.New("storage data is not found")
}
got, err := st.Get(key.Bytes())
if err != nil {
return err
}
if !bytes.Equal(got, storages[key]) {
return fmt.Errorf("unexpected storage data, want: %v, got: %v", storages[key], got)
}
st.Update(key.Bytes(), val)
}
if len(storageOrigin) != len(storages) {
return fmt.Errorf("extra storage found, want: %d, got: %d", len(storageOrigin), len(storages))
}
if st.Hash() != oAcct.Root {
return errors.New("invalid slot changes")
}
return nil
}
func (test *stateTest) verify(root common.Hash, next common.Hash, db *triedb.Database, accountsOrigin map[common.Address][]byte, storagesOrigin map[common.Address]map[common.Hash][]byte) error {
func (test *stateTest) verify(root common.Hash, next common.Hash, db *triedb.Database, accounts map[common.Hash][]byte, accountsOrigin map[common.Address][]byte, storages map[common.Hash]map[common.Hash][]byte, storagesOrigin map[common.Address]map[common.Hash][]byte) error {
otr, err := trie.New(trie.StateTrieID(root), db)
if err != nil {
return err
@ -379,12 +417,15 @@ func (test *stateTest) verify(root common.Hash, next common.Hash, db *triedb.Dat
if err != nil {
return err
}
for addr, account := range accountsOrigin {
var err error
if len(account) == 0 {
err = test.verifyAccountCreation(next, db, otr, ntr, addr, storagesOrigin[addr])
for addr, accountOrigin := range accountsOrigin {
var (
err error
addrHash = crypto.Keccak256Hash(addr.Bytes())
)
if len(accountOrigin) == 0 {
err = test.verifyAccountCreation(next, db, otr, ntr, addr, accounts[addrHash], storages[addrHash], storagesOrigin[addr])
} else {
err = test.verifyAccountUpdate(next, db, otr, ntr, addr, accountsOrigin[addr], storagesOrigin[addr])
err = test.verifyAccountUpdate(next, db, otr, ntr, addr, accounts[addrHash], accountsOrigin[addr], storages[addrHash], storagesOrigin[addr])
}
if err != nil {
return err

4
core/state/statedb_test.go
View File

@ -1305,12 +1305,12 @@ func TestDeleteStorage(t *testing.T) {
obj := fastState.getOrNewStateObject(addr)
storageRoot := obj.data.Root
_, fastNodes, err := fastState.deleteStorage(addr, crypto.Keccak256Hash(addr[:]), storageRoot)
_, _, fastNodes, err := fastState.deleteStorage(addr, crypto.Keccak256Hash(addr[:]), storageRoot)
if err != nil {
t.Fatal(err)
}
_, slowNodes, err := slowState.deleteStorage(addr, crypto.Keccak256Hash(addr[:]), storageRoot)
_, _, slowNodes, err := slowState.deleteStorage(addr, crypto.Keccak256Hash(addr[:]), storageRoot)
if err != nil {
t.Fatal(err)
}

50
core/state/stateupdate.go
View File

@ -17,6 +17,8 @@
package state
import (
"maps"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/trie/trienode"
@ -33,6 +35,7 @@ type contractCode struct {
type accountDelete struct {
address common.Address // address is the unique account identifier
origin []byte // origin is the original value of account data in slim-RLP encoding.
storages map[common.Hash][]byte // storages stores mutated slots, the value should be nil.
storagesOrigin map[common.Hash][]byte // storagesOrigin stores the original values of mutated slots in prefix-zero-trimmed RLP format.
}
@ -52,7 +55,6 @@ type accountUpdate struct {
type stateUpdate struct {
originRoot common.Hash // hash of the state before applying mutation
root common.Hash // hash of the state after applying mutation
destructs map[common.Hash]struct{} // destructs contains the list of destructed accounts
accounts map[common.Hash][]byte // accounts stores mutated accounts in 'slim RLP' encoding
accountsOrigin map[common.Address][]byte // accountsOrigin stores the original values of mutated accounts in 'slim RLP' encoding
storages map[common.Hash]map[common.Hash][]byte // storages stores mutated slots in 'prefix-zero-trimmed' RLP format
@ -71,7 +73,6 @@ func (sc *stateUpdate) empty() bool {
// account deletions and account updates to form a comprehensive state update.
func newStateUpdate(originRoot common.Hash, root common.Hash, deletes map[common.Hash]*accountDelete, updates map[common.Hash]*accountUpdate, nodes *trienode.MergedNodeSet) *stateUpdate {
var (
destructs = make(map[common.Hash]struct{})
accounts = make(map[common.Hash][]byte)
accountsOrigin = make(map[common.Address][]byte)
storages = make(map[common.Hash]map[common.Hash][]byte)
@ -82,8 +83,12 @@ func newStateUpdate(originRoot common.Hash, root common.Hash, deletes map[common
// within the same block, the deletions must be aggregated first.
for addrHash, op := range deletes {
addr := op.address
destructs[addrHash] = struct{}{}
accounts[addrHash] = nil
accountsOrigin[addr] = op.origin
if len(op.storages) > 0 {
storages[addrHash] = op.storages
}
if len(op.storagesOrigin) > 0 {
storagesOrigin[addr] = op.storagesOrigin
}
@ -95,35 +100,41 @@ func newStateUpdate(originRoot common.Hash, root common.Hash, deletes map[common
if op.code != nil {
codes[addr] = *op.code
}
// Aggregate the account changes. The original account value will only
// be tracked if it's not present yet.
accounts[addrHash] = op.data
// Aggregate the account original value. If the account is already
// present in the aggregated accountsOrigin set, skip it.
if _, found := accountsOrigin[addr]; !found {
accountsOrigin[addr] = op.origin
}
// Aggregate the storage changes. The original storage slot value will
// only be tracked if it's not present yet.
// Aggregate the storage mutation list. If a slot in op.storages is
// already present in aggregated storages set, the value will be
// overwritten.
if len(op.storages) > 0 {
storages[addrHash] = op.storages
}
if len(op.storagesOrigin) > 0 {
origin := storagesOrigin[addr]
if origin == nil {
storagesOrigin[addr] = op.storagesOrigin
continue
if _, exist := storages[addrHash]; !exist {
storages[addrHash] = op.storages
} else {
maps.Copy(storages[addrHash], op.storages)
}
for key, slot := range op.storagesOrigin {
if _, found := origin[key]; !found {
origin[key] = slot
}
// Aggregate the storage original values. If the slot is already present
// in aggregated storagesOrigin set, skip it.
if len(op.storagesOrigin) > 0 {
origin, exist := storagesOrigin[addr]
if !exist {
storagesOrigin[addr] = op.storagesOrigin
} else {
for key, slot := range op.storagesOrigin {
if _, found := origin[key]; !found {
origin[key] = slot
}
}
}
storagesOrigin[addr] = origin
}
}
return &stateUpdate{
originRoot: types.TrieRootHash(originRoot),
root: types.TrieRootHash(root),
destructs: destructs,
accounts: accounts,
accountsOrigin: accountsOrigin,
storages: storages,
@ -139,7 +150,6 @@ func newStateUpdate(originRoot common.Hash, root common.Hash, deletes map[common
// package.
func (sc *stateUpdate) stateSet() *triedb.StateSet {
return &triedb.StateSet{
Destructs: sc.destructs,
Accounts: sc.accounts,
AccountsOrigin: sc.accountsOrigin,
Storages: sc.storages,

2
triedb/states.go
View File

@ -23,7 +23,6 @@ import (
// StateSet represents a collection of mutated states during a state transition.
type StateSet struct {
Destructs map[common.Hash]struct{} // Destructed accounts
Accounts map[common.Hash][]byte // Mutated accounts in 'slim RLP' encoding
AccountsOrigin map[common.Address][]byte // Original values of mutated accounts in 'slim RLP' encoding
Storages map[common.Hash]map[common.Hash][]byte // Mutated storage slots in 'prefix-zero-trimmed' RLP format
@ -33,7 +32,6 @@ type StateSet struct {
// NewStateSet initializes an empty state set.
func NewStateSet() *StateSet {
return &StateSet{
Destructs: make(map[common.Hash]struct{}),
Accounts: make(map[common.Hash][]byte),
AccountsOrigin: make(map[common.Address][]byte),
Storages: make(map[common.Hash]map[common.Hash][]byte),