core: handle importing known blocks more gracefully (#19417)
* core: import known blocks if they can be inserted as canonical blocks * core: insert knowns blocks * core: remove useless * core: doesn't process head block in reorg function
This commit is contained in:
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78477e4118
commit
c113723fdb
@ -883,10 +883,10 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
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var lastWrite uint64
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// WriteBlockWithoutState writes only the block and its metadata to the database,
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// writeBlockWithoutState writes only the block and its metadata to the database,
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// but does not write any state. This is used to construct competing side forks
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// up to the point where they exceed the canonical total difficulty.
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func (bc *BlockChain) WriteBlockWithoutState(block *types.Block, td *big.Int) (err error) {
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func (bc *BlockChain) writeBlockWithoutState(block *types.Block, td *big.Int) (err error) {
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bc.wg.Add(1)
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defer bc.wg.Done()
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@ -898,6 +898,26 @@ func (bc *BlockChain) WriteBlockWithoutState(block *types.Block, td *big.Int) (e
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return nil
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}
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// writeKnownBlock updates the head block flag with a known block
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// and introduces chain reorg if necessary.
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func (bc *BlockChain) writeKnownBlock(block *types.Block) error {
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bc.wg.Add(1)
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defer bc.wg.Done()
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current := bc.CurrentBlock()
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if block.ParentHash() != current.Hash() {
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if err := bc.reorg(current, block); err != nil {
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return err
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}
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}
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// Write the positional metadata for transaction/receipt lookups.
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// Preimages here is empty, ignore it.
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rawdb.WriteTxLookupEntries(bc.db, block)
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bc.insert(block)
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return nil
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}
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// WriteBlockWithState writes the block and all associated state to the database.
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func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.Receipt, state *state.StateDB) (status WriteStatus, err error) {
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bc.chainmu.Lock()
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@ -1139,18 +1159,42 @@ func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, []
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// 2. The block is stored as a sidechain, and is lying about it's stateroot, and passes a stateroot
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// from the canonical chain, which has not been verified.
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// Skip all known blocks that are behind us
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current := bc.CurrentBlock().NumberU64()
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for block != nil && err == ErrKnownBlock && current >= block.NumberU64() {
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var (
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current = bc.CurrentBlock()
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localTd = bc.GetTd(current.Hash(), current.NumberU64())
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externTd = bc.GetTd(block.ParentHash(), block.NumberU64()-1) // The first block can't be nil
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)
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for block != nil && err == ErrKnownBlock {
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externTd = new(big.Int).Add(externTd, block.Difficulty())
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if localTd.Cmp(externTd) < 0 {
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break
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}
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stats.ignored++
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block, err = it.next()
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}
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// The remaining blocks are still known blocks, the only scenario here is:
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// During the fast sync, the pivot point is already submitted but rollback
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// happens. Then node resets the head full block to a lower height via `rollback`
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// and leaves a few known blocks in the database.
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//
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// When node runs a fast sync again, it can re-import a batch of known blocks via
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// `insertChain` while a part of them have higher total difficulty than current
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// head full block(new pivot point).
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for block != nil && err == ErrKnownBlock {
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if err := bc.writeKnownBlock(block); err != nil {
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return it.index, nil, nil, err
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}
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lastCanon = block
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block, err = it.next()
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}
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// Falls through to the block import
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}
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switch {
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// First block is pruned, insert as sidechain and reorg only if TD grows enough
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case err == consensus.ErrPrunedAncestor:
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return bc.insertSidechain(block, it)
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return bc.insertSideChain(block, it)
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// First block is future, shove it (and all children) to the future queue (unknown ancestor)
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case err == consensus.ErrFutureBlock || (err == consensus.ErrUnknownAncestor && bc.futureBlocks.Contains(it.first().ParentHash())):
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@ -1313,13 +1357,13 @@ func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, []
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return it.index, events, coalescedLogs, err
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}
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// insertSidechain is called when an import batch hits upon a pruned ancestor
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// insertSideChain is called when an import batch hits upon a pruned ancestor
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// error, which happens when a sidechain with a sufficiently old fork-block is
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// found.
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//
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// The method writes all (header-and-body-valid) blocks to disk, then tries to
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// switch over to the new chain if the TD exceeded the current chain.
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func (bc *BlockChain) insertSidechain(block *types.Block, it *insertIterator) (int, []interface{}, []*types.Log, error) {
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func (bc *BlockChain) insertSideChain(block *types.Block, it *insertIterator) (int, []interface{}, []*types.Log, error) {
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var (
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externTd *big.Int
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current = bc.CurrentBlock()
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@ -1360,7 +1404,7 @@ func (bc *BlockChain) insertSidechain(block *types.Block, it *insertIterator) (i
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if !bc.HasBlock(block.Hash(), block.NumberU64()) {
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start := time.Now()
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if err := bc.WriteBlockWithoutState(block, externTd); err != nil {
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if err := bc.writeBlockWithoutState(block, externTd); err != nil {
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return it.index, nil, nil, err
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}
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log.Debug("Injected sidechain block", "number", block.Number(), "hash", block.Hash(),
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@ -1524,15 +1568,15 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
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} else {
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log.Error("Impossible reorg, please file an issue", "oldnum", oldBlock.Number(), "oldhash", oldBlock.Hash(), "newnum", newBlock.Number(), "newhash", newBlock.Hash())
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}
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// Insert the new chain, taking care of the proper incremental order
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for i := len(newChain) - 1; i >= 0; i-- {
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// Insert the new chain(except the head block(reverse order)),
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// taking care of the proper incremental order.
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for i := len(newChain) - 1; i >= 1; i-- {
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// Insert the block in the canonical way, re-writing history
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bc.insert(newChain[i])
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// Collect reborn logs due to chain reorg (except head block (reverse order))
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if i != 0 {
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collectLogs(newChain[i].Hash(), false)
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}
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// Collect reborn logs due to chain reorg
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collectLogs(newChain[i].Hash(), false)
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// Write lookup entries for hash based transaction/receipt searches
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rawdb.WriteTxLookupEntries(bc.db, newChain[i])
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addedTxs = append(addedTxs, newChain[i].Transactions()...)
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@ -1564,117 +1564,6 @@ func TestLargeReorgTrieGC(t *testing.T) {
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}
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}
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// Benchmarks large blocks with value transfers to non-existing accounts
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func benchmarkLargeNumberOfValueToNonexisting(b *testing.B, numTxs, numBlocks int, recipientFn func(uint64) common.Address, dataFn func(uint64) []byte) {
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var (
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signer = types.HomesteadSigner{}
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testBankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
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bankFunds = big.NewInt(100000000000000000)
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gspec = Genesis{
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Config: params.TestChainConfig,
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Alloc: GenesisAlloc{
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testBankAddress: {Balance: bankFunds},
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common.HexToAddress("0xc0de"): {
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Code: []byte{0x60, 0x01, 0x50},
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Balance: big.NewInt(0),
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}, // push 1, pop
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},
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GasLimit: 100e6, // 100 M
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}
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)
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// Generate the original common chain segment and the two competing forks
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engine := ethash.NewFaker()
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db := rawdb.NewMemoryDatabase()
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genesis := gspec.MustCommit(db)
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blockGenerator := func(i int, block *BlockGen) {
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block.SetCoinbase(common.Address{1})
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for txi := 0; txi < numTxs; txi++ {
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uniq := uint64(i*numTxs + txi)
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recipient := recipientFn(uniq)
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//recipient := common.BigToAddress(big.NewInt(0).SetUint64(1337 + uniq))
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tx, err := types.SignTx(types.NewTransaction(uniq, recipient, big.NewInt(1), params.TxGas, big.NewInt(1), nil), signer, testBankKey)
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if err != nil {
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b.Error(err)
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}
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block.AddTx(tx)
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}
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}
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shared, _ := GenerateChain(params.TestChainConfig, genesis, engine, db, numBlocks, blockGenerator)
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b.StopTimer()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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// Import the shared chain and the original canonical one
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diskdb := rawdb.NewMemoryDatabase()
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gspec.MustCommit(diskdb)
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chain, err := NewBlockChain(diskdb, nil, params.TestChainConfig, engine, vm.Config{}, nil)
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if err != nil {
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b.Fatalf("failed to create tester chain: %v", err)
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}
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b.StartTimer()
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if _, err := chain.InsertChain(shared); err != nil {
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b.Fatalf("failed to insert shared chain: %v", err)
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}
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b.StopTimer()
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if got := chain.CurrentBlock().Transactions().Len(); got != numTxs*numBlocks {
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b.Fatalf("Transactions were not included, expected %d, got %d", numTxs*numBlocks, got)
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}
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}
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}
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func BenchmarkBlockChain_1x1000ValueTransferToNonexisting(b *testing.B) {
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var (
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numTxs = 1000
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numBlocks = 1
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)
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recipientFn := func(nonce uint64) common.Address {
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return common.BigToAddress(big.NewInt(0).SetUint64(1337 + nonce))
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}
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dataFn := func(nonce uint64) []byte {
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return nil
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}
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benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
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}
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func BenchmarkBlockChain_1x1000ValueTransferToExisting(b *testing.B) {
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var (
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numTxs = 1000
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numBlocks = 1
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)
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b.StopTimer()
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b.ResetTimer()
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recipientFn := func(nonce uint64) common.Address {
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return common.BigToAddress(big.NewInt(0).SetUint64(1337))
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}
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dataFn := func(nonce uint64) []byte {
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return nil
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}
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benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
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}
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func BenchmarkBlockChain_1x1000Executions(b *testing.B) {
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var (
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numTxs = 1000
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numBlocks = 1
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)
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b.StopTimer()
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b.ResetTimer()
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recipientFn := func(nonce uint64) common.Address {
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return common.BigToAddress(big.NewInt(0).SetUint64(0xc0de))
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}
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dataFn := func(nonce uint64) []byte {
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return nil
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}
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benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
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}
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// Tests that importing a very large side fork, which is larger than the canon chain,
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// but where the difficulty per block is kept low: this means that it will not
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// overtake the 'canon' chain until after it's passed canon by about 200 blocks.
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@ -1812,6 +1701,138 @@ func TestPrunedImportSide(t *testing.T) {
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testSideImport(t, 1, -10)
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}
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func TestInsertKnownHeaders(t *testing.T) { testInsertKnownChainData(t, "headers") }
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func TestInsertKnownReceiptChain(t *testing.T) { testInsertKnownChainData(t, "receipts") }
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func TestInsertKnownBlocks(t *testing.T) { testInsertKnownChainData(t, "blocks") }
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func testInsertKnownChainData(t *testing.T, typ string) {
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engine := ethash.NewFaker()
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db := rawdb.NewMemoryDatabase()
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genesis := new(Genesis).MustCommit(db)
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blocks, receipts := GenerateChain(params.TestChainConfig, genesis, engine, db, 32, func(i int, b *BlockGen) { b.SetCoinbase(common.Address{1}) })
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// A longer chain but total difficulty is lower.
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blocks2, receipts2 := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], engine, db, 65, func(i int, b *BlockGen) { b.SetCoinbase(common.Address{1}) })
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// A shorter chain but total difficulty is higher.
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blocks3, receipts3 := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], engine, db, 64, func(i int, b *BlockGen) {
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b.SetCoinbase(common.Address{1})
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b.OffsetTime(-9) // A higher difficulty
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})
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// Import the shared chain and the original canonical one
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chaindb := rawdb.NewMemoryDatabase()
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new(Genesis).MustCommit(chaindb)
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chain, err := NewBlockChain(chaindb, nil, params.TestChainConfig, engine, vm.Config{}, nil)
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if err != nil {
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t.Fatalf("failed to create tester chain: %v", err)
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}
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var (
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inserter func(blocks []*types.Block, receipts []types.Receipts) error
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asserter func(t *testing.T, block *types.Block)
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)
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headers, headers2 := make([]*types.Header, 0, len(blocks)), make([]*types.Header, 0, len(blocks2))
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for _, block := range blocks {
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headers = append(headers, block.Header())
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}
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for _, block := range blocks2 {
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headers2 = append(headers2, block.Header())
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}
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if typ == "headers" {
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inserter = func(blocks []*types.Block, receipts []types.Receipts) error {
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headers := make([]*types.Header, 0, len(blocks))
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for _, block := range blocks {
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headers = append(headers, block.Header())
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}
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_, err := chain.InsertHeaderChain(headers, 1)
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return err
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}
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asserter = func(t *testing.T, block *types.Block) {
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if chain.CurrentHeader().Hash() != block.Hash() {
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t.Fatalf("current head header mismatch, have %v, want %v", chain.CurrentHeader().Hash().Hex(), block.Hash().Hex())
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}
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}
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} else if typ == "receipts" {
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inserter = func(blocks []*types.Block, receipts []types.Receipts) error {
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headers := make([]*types.Header, 0, len(blocks))
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for _, block := range blocks {
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headers = append(headers, block.Header())
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}
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_, err := chain.InsertHeaderChain(headers, 1)
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if err != nil {
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return err
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}
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_, err = chain.InsertReceiptChain(blocks, receipts)
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return err
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}
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asserter = func(t *testing.T, block *types.Block) {
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if chain.CurrentFastBlock().Hash() != block.Hash() {
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t.Fatalf("current head fast block mismatch, have %v, want %v", chain.CurrentFastBlock().Hash().Hex(), block.Hash().Hex())
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}
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}
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} else {
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inserter = func(blocks []*types.Block, receipts []types.Receipts) error {
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_, err := chain.InsertChain(blocks)
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return err
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}
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asserter = func(t *testing.T, block *types.Block) {
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if chain.CurrentBlock().Hash() != block.Hash() {
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t.Fatalf("current head block mismatch, have %v, want %v", chain.CurrentBlock().Hash().Hex(), block.Hash().Hex())
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}
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}
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}
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if err := inserter(blocks, receipts); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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// Reimport the chain data again. All the imported
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// chain data are regarded "known" data.
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if err := inserter(blocks, receipts); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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asserter(t, blocks[len(blocks)-1])
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// Import a long canonical chain with some known data as prefix.
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var rollback []common.Hash
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for i := len(blocks) / 2; i < len(blocks); i++ {
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rollback = append(rollback, blocks[i].Hash())
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}
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chain.Rollback(rollback)
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if err := inserter(append(blocks, blocks2...), append(receipts, receipts2...)); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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asserter(t, blocks2[len(blocks2)-1])
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// Import a heavier shorter but higher total difficulty chain with some known data as prefix.
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if err := inserter(append(blocks, blocks3...), append(receipts, receipts3...)); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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asserter(t, blocks3[len(blocks3)-1])
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// Import a longer but lower total difficulty chain with some known data as prefix.
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if err := inserter(append(blocks, blocks2...), append(receipts, receipts2...)); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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// The head shouldn't change.
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asserter(t, blocks3[len(blocks3)-1])
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if typ != "headers" {
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// Rollback the heavier chain and re-insert the longer chain again
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for i := 0; i < len(blocks3); i++ {
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rollback = append(rollback, blocks3[i].Hash())
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}
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chain.Rollback(rollback)
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if err := inserter(append(blocks, blocks2...), append(receipts, receipts2...)); err != nil {
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t.Fatalf("failed to insert chain data: %v", err)
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}
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asserter(t, blocks2[len(blocks2)-1])
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}
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}
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// getLongAndShortChains returns two chains,
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// A is longer, B is heavier
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func getLongAndShortChains() (*BlockChain, []*types.Block, []*types.Block, error) {
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@ -1931,3 +1952,116 @@ func TestReorgToShorterRemovesCanonMappingHeaderChain(t *testing.T) {
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t.Errorf("expected header to be gone: %v", headerByNum.Number.Uint64())
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}
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}
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// Benchmarks large blocks with value transfers to non-existing accounts
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func benchmarkLargeNumberOfValueToNonexisting(b *testing.B, numTxs, numBlocks int, recipientFn func(uint64) common.Address, dataFn func(uint64) []byte) {
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var (
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signer = types.HomesteadSigner{}
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testBankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
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bankFunds = big.NewInt(100000000000000000)
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gspec = Genesis{
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Config: params.TestChainConfig,
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Alloc: GenesisAlloc{
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testBankAddress: {Balance: bankFunds},
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common.HexToAddress("0xc0de"): {
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Code: []byte{0x60, 0x01, 0x50},
|
||||
Balance: big.NewInt(0),
|
||||
}, // push 1, pop
|
||||
},
|
||||
GasLimit: 100e6, // 100 M
|
||||
}
|
||||
)
|
||||
// Generate the original common chain segment and the two competing forks
|
||||
engine := ethash.NewFaker()
|
||||
db := rawdb.NewMemoryDatabase()
|
||||
genesis := gspec.MustCommit(db)
|
||||
|
||||
blockGenerator := func(i int, block *BlockGen) {
|
||||
block.SetCoinbase(common.Address{1})
|
||||
for txi := 0; txi < numTxs; txi++ {
|
||||
uniq := uint64(i*numTxs + txi)
|
||||
recipient := recipientFn(uniq)
|
||||
tx, err := types.SignTx(types.NewTransaction(uniq, recipient, big.NewInt(1), params.TxGas, big.NewInt(1), nil), signer, testBankKey)
|
||||
if err != nil {
|
||||
b.Error(err)
|
||||
}
|
||||
block.AddTx(tx)
|
||||
}
|
||||
}
|
||||
|
||||
shared, _ := GenerateChain(params.TestChainConfig, genesis, engine, db, numBlocks, blockGenerator)
|
||||
b.StopTimer()
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
// Import the shared chain and the original canonical one
|
||||
diskdb := rawdb.NewMemoryDatabase()
|
||||
gspec.MustCommit(diskdb)
|
||||
|
||||
chain, err := NewBlockChain(diskdb, nil, params.TestChainConfig, engine, vm.Config{}, nil)
|
||||
if err != nil {
|
||||
b.Fatalf("failed to create tester chain: %v", err)
|
||||
}
|
||||
b.StartTimer()
|
||||
if _, err := chain.InsertChain(shared); err != nil {
|
||||
b.Fatalf("failed to insert shared chain: %v", err)
|
||||
}
|
||||
b.StopTimer()
|
||||
if got := chain.CurrentBlock().Transactions().Len(); got != numTxs*numBlocks {
|
||||
b.Fatalf("Transactions were not included, expected %d, got %d", numTxs*numBlocks, got)
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkBlockChain_1x1000ValueTransferToNonexisting(b *testing.B) {
|
||||
var (
|
||||
numTxs = 1000
|
||||
numBlocks = 1
|
||||
)
|
||||
|
||||
recipientFn := func(nonce uint64) common.Address {
|
||||
return common.BigToAddress(big.NewInt(0).SetUint64(1337 + nonce))
|
||||
}
|
||||
dataFn := func(nonce uint64) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
|
||||
}
|
||||
|
||||
func BenchmarkBlockChain_1x1000ValueTransferToExisting(b *testing.B) {
|
||||
var (
|
||||
numTxs = 1000
|
||||
numBlocks = 1
|
||||
)
|
||||
b.StopTimer()
|
||||
b.ResetTimer()
|
||||
|
||||
recipientFn := func(nonce uint64) common.Address {
|
||||
return common.BigToAddress(big.NewInt(0).SetUint64(1337))
|
||||
}
|
||||
dataFn := func(nonce uint64) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
|
||||
}
|
||||
|
||||
func BenchmarkBlockChain_1x1000Executions(b *testing.B) {
|
||||
var (
|
||||
numTxs = 1000
|
||||
numBlocks = 1
|
||||
)
|
||||
b.StopTimer()
|
||||
b.ResetTimer()
|
||||
|
||||
recipientFn := func(nonce uint64) common.Address {
|
||||
return common.BigToAddress(big.NewInt(0).SetUint64(0xc0de))
|
||||
}
|
||||
dataFn := func(nonce uint64) []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
benchmarkLargeNumberOfValueToNonexisting(b, numTxs, numBlocks, recipientFn, dataFn)
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user