2495 lines
97 KiB
Go
2495 lines
97 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package core implements the Ethereum consensus protocol.
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package core
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import (
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"errors"
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"fmt"
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"io"
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"math/big"
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"runtime"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/lru"
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"github.com/ethereum/go-ethereum/common/mclock"
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"github.com/ethereum/go-ethereum/common/prque"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/consensus/misc/eip4844"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/state/snapshot"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/internal/syncx"
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"github.com/ethereum/go-ethereum/internal/version"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/triedb"
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"github.com/ethereum/go-ethereum/triedb/hashdb"
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"github.com/ethereum/go-ethereum/triedb/pathdb"
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"golang.org/x/exp/slices"
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)
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var (
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headBlockGauge = metrics.NewRegisteredGauge("chain/head/block", nil)
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headHeaderGauge = metrics.NewRegisteredGauge("chain/head/header", nil)
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headFastBlockGauge = metrics.NewRegisteredGauge("chain/head/receipt", nil)
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headFinalizedBlockGauge = metrics.NewRegisteredGauge("chain/head/finalized", nil)
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headSafeBlockGauge = metrics.NewRegisteredGauge("chain/head/safe", nil)
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chainInfoGauge = metrics.NewRegisteredGaugeInfo("chain/info", nil)
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accountReadTimer = metrics.NewRegisteredTimer("chain/account/reads", nil)
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accountHashTimer = metrics.NewRegisteredTimer("chain/account/hashes", nil)
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accountUpdateTimer = metrics.NewRegisteredTimer("chain/account/updates", nil)
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accountCommitTimer = metrics.NewRegisteredTimer("chain/account/commits", nil)
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storageReadTimer = metrics.NewRegisteredTimer("chain/storage/reads", nil)
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storageHashTimer = metrics.NewRegisteredTimer("chain/storage/hashes", nil)
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storageUpdateTimer = metrics.NewRegisteredTimer("chain/storage/updates", nil)
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storageCommitTimer = metrics.NewRegisteredTimer("chain/storage/commits", nil)
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snapshotAccountReadTimer = metrics.NewRegisteredTimer("chain/snapshot/account/reads", nil)
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snapshotStorageReadTimer = metrics.NewRegisteredTimer("chain/snapshot/storage/reads", nil)
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snapshotCommitTimer = metrics.NewRegisteredTimer("chain/snapshot/commits", nil)
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triedbCommitTimer = metrics.NewRegisteredTimer("chain/triedb/commits", nil)
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blockInsertTimer = metrics.NewRegisteredTimer("chain/inserts", nil)
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blockValidationTimer = metrics.NewRegisteredTimer("chain/validation", nil)
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blockExecutionTimer = metrics.NewRegisteredTimer("chain/execution", nil)
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blockWriteTimer = metrics.NewRegisteredTimer("chain/write", nil)
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blockReorgMeter = metrics.NewRegisteredMeter("chain/reorg/executes", nil)
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blockReorgAddMeter = metrics.NewRegisteredMeter("chain/reorg/add", nil)
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blockReorgDropMeter = metrics.NewRegisteredMeter("chain/reorg/drop", nil)
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blockPrefetchExecuteTimer = metrics.NewRegisteredTimer("chain/prefetch/executes", nil)
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blockPrefetchInterruptMeter = metrics.NewRegisteredMeter("chain/prefetch/interrupts", nil)
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errInsertionInterrupted = errors.New("insertion is interrupted")
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errChainStopped = errors.New("blockchain is stopped")
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errInvalidOldChain = errors.New("invalid old chain")
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errInvalidNewChain = errors.New("invalid new chain")
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)
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const (
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bodyCacheLimit = 256
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blockCacheLimit = 256
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receiptsCacheLimit = 32
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txLookupCacheLimit = 1024
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maxFutureBlocks = 256
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maxTimeFutureBlocks = 30
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TriesInMemory = 128
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// BlockChainVersion ensures that an incompatible database forces a resync from scratch.
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//
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// Changelog:
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//
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// - Version 4
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// The following incompatible database changes were added:
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// * the `BlockNumber`, `TxHash`, `TxIndex`, `BlockHash` and `Index` fields of log are deleted
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// * the `Bloom` field of receipt is deleted
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// * the `BlockIndex` and `TxIndex` fields of txlookup are deleted
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// - Version 5
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// The following incompatible database changes were added:
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// * the `TxHash`, `GasCost`, and `ContractAddress` fields are no longer stored for a receipt
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// * the `TxHash`, `GasCost`, and `ContractAddress` fields are computed by looking up the
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// receipts' corresponding block
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// - Version 6
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// The following incompatible database changes were added:
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// * Transaction lookup information stores the corresponding block number instead of block hash
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// - Version 7
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// The following incompatible database changes were added:
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// * Use freezer as the ancient database to maintain all ancient data
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// - Version 8
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// The following incompatible database changes were added:
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// * New scheme for contract code in order to separate the codes and trie nodes
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BlockChainVersion uint64 = 8
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)
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// CacheConfig contains the configuration values for the trie database
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// and state snapshot these are resident in a blockchain.
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type CacheConfig struct {
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TrieCleanLimit int // Memory allowance (MB) to use for caching trie nodes in memory
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TrieCleanNoPrefetch bool // Whether to disable heuristic state prefetching for followup blocks
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TrieDirtyLimit int // Memory limit (MB) at which to start flushing dirty trie nodes to disk
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TrieDirtyDisabled bool // Whether to disable trie write caching and GC altogether (archive node)
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TrieTimeLimit time.Duration // Time limit after which to flush the current in-memory trie to disk
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SnapshotLimit int // Memory allowance (MB) to use for caching snapshot entries in memory
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Preimages bool // Whether to store preimage of trie key to the disk
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StateHistory uint64 // Number of blocks from head whose state histories are reserved.
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StateScheme string // Scheme used to store ethereum states and merkle tree nodes on top
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SnapshotNoBuild bool // Whether the background generation is allowed
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SnapshotWait bool // Wait for snapshot construction on startup. TODO(karalabe): This is a dirty hack for testing, nuke it
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}
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// triedbConfig derives the configures for trie database.
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func (c *CacheConfig) triedbConfig() *triedb.Config {
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config := &triedb.Config{Preimages: c.Preimages}
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if c.StateScheme == rawdb.HashScheme {
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config.HashDB = &hashdb.Config{
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CleanCacheSize: c.TrieCleanLimit * 1024 * 1024,
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}
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}
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if c.StateScheme == rawdb.PathScheme {
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config.PathDB = &pathdb.Config{
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StateHistory: c.StateHistory,
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CleanCacheSize: c.TrieCleanLimit * 1024 * 1024,
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DirtyCacheSize: c.TrieDirtyLimit * 1024 * 1024,
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}
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}
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return config
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}
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// defaultCacheConfig are the default caching values if none are specified by the
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// user (also used during testing).
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var defaultCacheConfig = &CacheConfig{
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TrieCleanLimit: 256,
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TrieDirtyLimit: 256,
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TrieTimeLimit: 5 * time.Minute,
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SnapshotLimit: 256,
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SnapshotWait: true,
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StateScheme: rawdb.HashScheme,
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}
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// DefaultCacheConfigWithScheme returns a deep copied default cache config with
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// a provided trie node scheme.
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func DefaultCacheConfigWithScheme(scheme string) *CacheConfig {
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config := *defaultCacheConfig
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config.StateScheme = scheme
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return &config
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}
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// txLookup is wrapper over transaction lookup along with the corresponding
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// transaction object.
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type txLookup struct {
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lookup *rawdb.LegacyTxLookupEntry
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transaction *types.Transaction
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}
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// BlockChain represents the canonical chain given a database with a genesis
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// block. The Blockchain manages chain imports, reverts, chain reorganisations.
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//
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// Importing blocks in to the block chain happens according to the set of rules
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// defined by the two stage Validator. Processing of blocks is done using the
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// Processor which processes the included transaction. The validation of the state
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// is done in the second part of the Validator. Failing results in aborting of
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// the import.
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//
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// The BlockChain also helps in returning blocks from **any** chain included
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// in the database as well as blocks that represents the canonical chain. It's
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// important to note that GetBlock can return any block and does not need to be
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// included in the canonical one where as GetBlockByNumber always represents the
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// canonical chain.
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type BlockChain struct {
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chainConfig *params.ChainConfig // Chain & network configuration
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cacheConfig *CacheConfig // Cache configuration for pruning
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db ethdb.Database // Low level persistent database to store final content in
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snaps *snapshot.Tree // Snapshot tree for fast trie leaf access
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triegc *prque.Prque[int64, common.Hash] // Priority queue mapping block numbers to tries to gc
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gcproc time.Duration // Accumulates canonical block processing for trie dumping
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lastWrite uint64 // Last block when the state was flushed
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flushInterval atomic.Int64 // Time interval (processing time) after which to flush a state
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triedb *triedb.Database // The database handler for maintaining trie nodes.
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stateCache state.Database // State database to reuse between imports (contains state cache)
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txIndexer *txIndexer // Transaction indexer, might be nil if not enabled
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hc *HeaderChain
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rmLogsFeed event.Feed
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chainFeed event.Feed
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chainSideFeed event.Feed
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chainHeadFeed event.Feed
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logsFeed event.Feed
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blockProcFeed event.Feed
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scope event.SubscriptionScope
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genesisBlock *types.Block
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// This mutex synchronizes chain write operations.
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// Readers don't need to take it, they can just read the database.
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chainmu *syncx.ClosableMutex
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currentBlock atomic.Pointer[types.Header] // Current head of the chain
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currentSnapBlock atomic.Pointer[types.Header] // Current head of snap-sync
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currentFinalBlock atomic.Pointer[types.Header] // Latest (consensus) finalized block
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currentSafeBlock atomic.Pointer[types.Header] // Latest (consensus) safe block
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bodyCache *lru.Cache[common.Hash, *types.Body]
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bodyRLPCache *lru.Cache[common.Hash, rlp.RawValue]
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receiptsCache *lru.Cache[common.Hash, []*types.Receipt]
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blockCache *lru.Cache[common.Hash, *types.Block]
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txLookupCache *lru.Cache[common.Hash, txLookup]
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// future blocks are blocks added for later processing
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futureBlocks *lru.Cache[common.Hash, *types.Block]
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wg sync.WaitGroup
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quit chan struct{} // shutdown signal, closed in Stop.
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stopping atomic.Bool // false if chain is running, true when stopped
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procInterrupt atomic.Bool // interrupt signaler for block processing
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engine consensus.Engine
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validator Validator // Block and state validator interface
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prefetcher Prefetcher
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processor Processor // Block transaction processor interface
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forker *ForkChoice
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vmConfig vm.Config
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}
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// NewBlockChain returns a fully initialised block chain using information
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// available in the database. It initialises the default Ethereum Validator
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// and Processor.
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func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, genesis *Genesis, overrides *ChainOverrides, engine consensus.Engine, vmConfig vm.Config, shouldPreserve func(header *types.Header) bool, txLookupLimit *uint64) (*BlockChain, error) {
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if cacheConfig == nil {
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cacheConfig = defaultCacheConfig
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}
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// Open trie database with provided config
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triedb := triedb.NewDatabase(db, cacheConfig.triedbConfig())
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// Setup the genesis block, commit the provided genesis specification
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// to database if the genesis block is not present yet, or load the
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// stored one from database.
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chainConfig, genesisHash, genesisErr := SetupGenesisBlockWithOverride(db, triedb, genesis, overrides)
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if _, ok := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !ok {
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return nil, genesisErr
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}
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log.Info("")
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log.Info(strings.Repeat("-", 153))
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for _, line := range strings.Split(chainConfig.Description(), "\n") {
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log.Info(line)
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}
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log.Info(strings.Repeat("-", 153))
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log.Info("")
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bc := &BlockChain{
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chainConfig: chainConfig,
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cacheConfig: cacheConfig,
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db: db,
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triedb: triedb,
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triegc: prque.New[int64, common.Hash](nil),
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quit: make(chan struct{}),
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chainmu: syncx.NewClosableMutex(),
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bodyCache: lru.NewCache[common.Hash, *types.Body](bodyCacheLimit),
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bodyRLPCache: lru.NewCache[common.Hash, rlp.RawValue](bodyCacheLimit),
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receiptsCache: lru.NewCache[common.Hash, []*types.Receipt](receiptsCacheLimit),
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blockCache: lru.NewCache[common.Hash, *types.Block](blockCacheLimit),
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txLookupCache: lru.NewCache[common.Hash, txLookup](txLookupCacheLimit),
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futureBlocks: lru.NewCache[common.Hash, *types.Block](maxFutureBlocks),
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engine: engine,
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vmConfig: vmConfig,
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}
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bc.flushInterval.Store(int64(cacheConfig.TrieTimeLimit))
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bc.forker = NewForkChoice(bc, shouldPreserve)
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bc.stateCache = state.NewDatabaseWithNodeDB(bc.db, bc.triedb)
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bc.validator = NewBlockValidator(chainConfig, bc, engine)
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bc.prefetcher = newStatePrefetcher(chainConfig, bc, engine)
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bc.processor = NewStateProcessor(chainConfig, bc, engine)
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var err error
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bc.hc, err = NewHeaderChain(db, chainConfig, engine, bc.insertStopped)
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if err != nil {
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return nil, err
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}
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bc.genesisBlock = bc.GetBlockByNumber(0)
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if bc.genesisBlock == nil {
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return nil, ErrNoGenesis
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}
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bc.currentBlock.Store(nil)
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bc.currentSnapBlock.Store(nil)
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bc.currentFinalBlock.Store(nil)
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bc.currentSafeBlock.Store(nil)
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// Update chain info data metrics
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chainInfoGauge.Update(metrics.GaugeInfoValue{"chain_id": bc.chainConfig.ChainID.String()})
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// If Geth is initialized with an external ancient store, re-initialize the
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// missing chain indexes and chain flags. This procedure can survive crash
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// and can be resumed in next restart since chain flags are updated in last step.
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if bc.empty() {
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rawdb.InitDatabaseFromFreezer(bc.db)
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}
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// Load blockchain states from disk
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if err := bc.loadLastState(); err != nil {
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return nil, err
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}
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// Make sure the state associated with the block is available, or log out
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// if there is no available state, waiting for state sync.
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head := bc.CurrentBlock()
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if !bc.HasState(head.Root) {
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if head.Number.Uint64() == 0 {
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// The genesis state is missing, which is only possible in the path-based
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// scheme. This situation occurs when the initial state sync is not finished
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// yet, or the chain head is rewound below the pivot point. In both scenarios,
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// there is no possible recovery approach except for rerunning a snap sync.
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// Do nothing here until the state syncer picks it up.
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log.Info("Genesis state is missing, wait state sync")
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} else {
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// Head state is missing, before the state recovery, find out the
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// disk layer point of snapshot(if it's enabled). Make sure the
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// rewound point is lower than disk layer.
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var diskRoot common.Hash
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if bc.cacheConfig.SnapshotLimit > 0 {
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diskRoot = rawdb.ReadSnapshotRoot(bc.db)
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}
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if diskRoot != (common.Hash{}) {
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log.Warn("Head state missing, repairing", "number", head.Number, "hash", head.Hash(), "snaproot", diskRoot)
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snapDisk, err := bc.setHeadBeyondRoot(head.Number.Uint64(), 0, diskRoot, true)
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if err != nil {
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return nil, err
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}
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// Chain rewound, persist old snapshot number to indicate recovery procedure
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if snapDisk != 0 {
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rawdb.WriteSnapshotRecoveryNumber(bc.db, snapDisk)
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}
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} else {
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log.Warn("Head state missing, repairing", "number", head.Number, "hash", head.Hash())
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if _, err := bc.setHeadBeyondRoot(head.Number.Uint64(), 0, common.Hash{}, true); err != nil {
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return nil, err
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}
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}
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}
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}
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// Ensure that a previous crash in SetHead doesn't leave extra ancients
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if frozen, err := bc.db.Ancients(); err == nil && frozen > 0 {
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var (
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needRewind bool
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low uint64
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)
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// The head full block may be rolled back to a very low height due to
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// blockchain repair. If the head full block is even lower than the ancient
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// chain, truncate the ancient store.
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fullBlock := bc.CurrentBlock()
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if fullBlock != nil && fullBlock.Hash() != bc.genesisBlock.Hash() && fullBlock.Number.Uint64() < frozen-1 {
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needRewind = true
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low = fullBlock.Number.Uint64()
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}
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// In snap sync, it may happen that ancient data has been written to the
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// ancient store, but the LastFastBlock has not been updated, truncate the
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// extra data here.
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snapBlock := bc.CurrentSnapBlock()
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if snapBlock != nil && snapBlock.Number.Uint64() < frozen-1 {
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needRewind = true
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if snapBlock.Number.Uint64() < low || low == 0 {
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low = snapBlock.Number.Uint64()
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}
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}
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if needRewind {
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log.Error("Truncating ancient chain", "from", bc.CurrentHeader().Number.Uint64(), "to", low)
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if err := bc.SetHead(low); err != nil {
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return nil, err
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}
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}
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}
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// The first thing the node will do is reconstruct the verification data for
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// the head block (ethash cache or clique voting snapshot). Might as well do
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// it in advance.
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bc.engine.VerifyHeader(bc, bc.CurrentHeader())
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// Check the current state of the block hashes and make sure that we do not have any of the bad blocks in our chain
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for hash := range BadHashes {
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if header := bc.GetHeaderByHash(hash); header != nil {
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// get the canonical block corresponding to the offending header's number
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headerByNumber := bc.GetHeaderByNumber(header.Number.Uint64())
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// make sure the headerByNumber (if present) is in our current canonical chain
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if headerByNumber != nil && headerByNumber.Hash() == header.Hash() {
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log.Error("Found bad hash, rewinding chain", "number", header.Number, "hash", header.ParentHash)
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if err := bc.SetHead(header.Number.Uint64() - 1); err != nil {
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return nil, err
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}
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log.Error("Chain rewind was successful, resuming normal operation")
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}
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}
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}
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// Load any existing snapshot, regenerating it if loading failed
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if bc.cacheConfig.SnapshotLimit > 0 {
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// If the chain was rewound past the snapshot persistent layer (causing
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// a recovery block number to be persisted to disk), check if we're still
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// in recovery mode and in that case, don't invalidate the snapshot on a
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|
// head mismatch.
|
|
var recover bool
|
|
|
|
head := bc.CurrentBlock()
|
|
if layer := rawdb.ReadSnapshotRecoveryNumber(bc.db); layer != nil && *layer >= head.Number.Uint64() {
|
|
log.Warn("Enabling snapshot recovery", "chainhead", head.Number, "diskbase", *layer)
|
|
recover = true
|
|
}
|
|
snapconfig := snapshot.Config{
|
|
CacheSize: bc.cacheConfig.SnapshotLimit,
|
|
Recovery: recover,
|
|
NoBuild: bc.cacheConfig.SnapshotNoBuild,
|
|
AsyncBuild: !bc.cacheConfig.SnapshotWait,
|
|
}
|
|
bc.snaps, _ = snapshot.New(snapconfig, bc.db, bc.triedb, head.Root)
|
|
}
|
|
|
|
// Start future block processor.
|
|
bc.wg.Add(1)
|
|
go bc.updateFutureBlocks()
|
|
|
|
// Rewind the chain in case of an incompatible config upgrade.
|
|
if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
|
|
log.Warn("Rewinding chain to upgrade configuration", "err", compat)
|
|
if compat.RewindToTime > 0 {
|
|
bc.SetHeadWithTimestamp(compat.RewindToTime)
|
|
} else {
|
|
bc.SetHead(compat.RewindToBlock)
|
|
}
|
|
rawdb.WriteChainConfig(db, genesisHash, chainConfig)
|
|
}
|
|
// Start tx indexer if it's enabled.
|
|
if txLookupLimit != nil {
|
|
bc.txIndexer = newTxIndexer(*txLookupLimit, bc)
|
|
}
|
|
return bc, nil
|
|
}
|
|
|
|
// empty returns an indicator whether the blockchain is empty.
|
|
// Note, it's a special case that we connect a non-empty ancient
|
|
// database with an empty node, so that we can plugin the ancient
|
|
// into node seamlessly.
|
|
func (bc *BlockChain) empty() bool {
|
|
genesis := bc.genesisBlock.Hash()
|
|
for _, hash := range []common.Hash{rawdb.ReadHeadBlockHash(bc.db), rawdb.ReadHeadHeaderHash(bc.db), rawdb.ReadHeadFastBlockHash(bc.db)} {
|
|
if hash != genesis {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// loadLastState loads the last known chain state from the database. This method
|
|
// assumes that the chain manager mutex is held.
|
|
func (bc *BlockChain) loadLastState() error {
|
|
// Restore the last known head block
|
|
head := rawdb.ReadHeadBlockHash(bc.db)
|
|
if head == (common.Hash{}) {
|
|
// Corrupt or empty database, init from scratch
|
|
log.Warn("Empty database, resetting chain")
|
|
return bc.Reset()
|
|
}
|
|
// Make sure the entire head block is available
|
|
headBlock := bc.GetBlockByHash(head)
|
|
if headBlock == nil {
|
|
// Corrupt or empty database, init from scratch
|
|
log.Warn("Head block missing, resetting chain", "hash", head)
|
|
return bc.Reset()
|
|
}
|
|
// Everything seems to be fine, set as the head block
|
|
bc.currentBlock.Store(headBlock.Header())
|
|
headBlockGauge.Update(int64(headBlock.NumberU64()))
|
|
|
|
// Restore the last known head header
|
|
headHeader := headBlock.Header()
|
|
if head := rawdb.ReadHeadHeaderHash(bc.db); head != (common.Hash{}) {
|
|
if header := bc.GetHeaderByHash(head); header != nil {
|
|
headHeader = header
|
|
}
|
|
}
|
|
bc.hc.SetCurrentHeader(headHeader)
|
|
|
|
// Restore the last known head snap block
|
|
bc.currentSnapBlock.Store(headBlock.Header())
|
|
headFastBlockGauge.Update(int64(headBlock.NumberU64()))
|
|
|
|
if head := rawdb.ReadHeadFastBlockHash(bc.db); head != (common.Hash{}) {
|
|
if block := bc.GetBlockByHash(head); block != nil {
|
|
bc.currentSnapBlock.Store(block.Header())
|
|
headFastBlockGauge.Update(int64(block.NumberU64()))
|
|
}
|
|
}
|
|
|
|
// Restore the last known finalized block and safe block
|
|
// Note: the safe block is not stored on disk and it is set to the last
|
|
// known finalized block on startup
|
|
if head := rawdb.ReadFinalizedBlockHash(bc.db); head != (common.Hash{}) {
|
|
if block := bc.GetBlockByHash(head); block != nil {
|
|
bc.currentFinalBlock.Store(block.Header())
|
|
headFinalizedBlockGauge.Update(int64(block.NumberU64()))
|
|
bc.currentSafeBlock.Store(block.Header())
|
|
headSafeBlockGauge.Update(int64(block.NumberU64()))
|
|
}
|
|
}
|
|
// Issue a status log for the user
|
|
var (
|
|
currentSnapBlock = bc.CurrentSnapBlock()
|
|
currentFinalBlock = bc.CurrentFinalBlock()
|
|
|
|
headerTd = bc.GetTd(headHeader.Hash(), headHeader.Number.Uint64())
|
|
blockTd = bc.GetTd(headBlock.Hash(), headBlock.NumberU64())
|
|
)
|
|
if headHeader.Hash() != headBlock.Hash() {
|
|
log.Info("Loaded most recent local header", "number", headHeader.Number, "hash", headHeader.Hash(), "td", headerTd, "age", common.PrettyAge(time.Unix(int64(headHeader.Time), 0)))
|
|
}
|
|
log.Info("Loaded most recent local block", "number", headBlock.Number(), "hash", headBlock.Hash(), "td", blockTd, "age", common.PrettyAge(time.Unix(int64(headBlock.Time()), 0)))
|
|
if headBlock.Hash() != currentSnapBlock.Hash() {
|
|
snapTd := bc.GetTd(currentSnapBlock.Hash(), currentSnapBlock.Number.Uint64())
|
|
log.Info("Loaded most recent local snap block", "number", currentSnapBlock.Number, "hash", currentSnapBlock.Hash(), "td", snapTd, "age", common.PrettyAge(time.Unix(int64(currentSnapBlock.Time), 0)))
|
|
}
|
|
if currentFinalBlock != nil {
|
|
finalTd := bc.GetTd(currentFinalBlock.Hash(), currentFinalBlock.Number.Uint64())
|
|
log.Info("Loaded most recent local finalized block", "number", currentFinalBlock.Number, "hash", currentFinalBlock.Hash(), "td", finalTd, "age", common.PrettyAge(time.Unix(int64(currentFinalBlock.Time), 0)))
|
|
}
|
|
if pivot := rawdb.ReadLastPivotNumber(bc.db); pivot != nil {
|
|
log.Info("Loaded last snap-sync pivot marker", "number", *pivot)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// SetHead rewinds the local chain to a new head. Depending on whether the node
|
|
// was snap synced or full synced and in which state, the method will try to
|
|
// delete minimal data from disk whilst retaining chain consistency.
|
|
func (bc *BlockChain) SetHead(head uint64) error {
|
|
if _, err := bc.setHeadBeyondRoot(head, 0, common.Hash{}, false); err != nil {
|
|
return err
|
|
}
|
|
// Send chain head event to update the transaction pool
|
|
header := bc.CurrentBlock()
|
|
block := bc.GetBlock(header.Hash(), header.Number.Uint64())
|
|
if block == nil {
|
|
// This should never happen. In practice, previously currentBlock
|
|
// contained the entire block whereas now only a "marker", so there
|
|
// is an ever so slight chance for a race we should handle.
|
|
log.Error("Current block not found in database", "block", header.Number, "hash", header.Hash())
|
|
return fmt.Errorf("current block missing: #%d [%x..]", header.Number, header.Hash().Bytes()[:4])
|
|
}
|
|
bc.chainHeadFeed.Send(ChainHeadEvent{Block: block})
|
|
return nil
|
|
}
|
|
|
|
// SetHeadWithTimestamp rewinds the local chain to a new head that has at max
|
|
// the given timestamp. Depending on whether the node was snap synced or full
|
|
// synced and in which state, the method will try to delete minimal data from
|
|
// disk whilst retaining chain consistency.
|
|
func (bc *BlockChain) SetHeadWithTimestamp(timestamp uint64) error {
|
|
if _, err := bc.setHeadBeyondRoot(0, timestamp, common.Hash{}, false); err != nil {
|
|
return err
|
|
}
|
|
// Send chain head event to update the transaction pool
|
|
header := bc.CurrentBlock()
|
|
block := bc.GetBlock(header.Hash(), header.Number.Uint64())
|
|
if block == nil {
|
|
// This should never happen. In practice, previously currentBlock
|
|
// contained the entire block whereas now only a "marker", so there
|
|
// is an ever so slight chance for a race we should handle.
|
|
log.Error("Current block not found in database", "block", header.Number, "hash", header.Hash())
|
|
return fmt.Errorf("current block missing: #%d [%x..]", header.Number, header.Hash().Bytes()[:4])
|
|
}
|
|
bc.chainHeadFeed.Send(ChainHeadEvent{Block: block})
|
|
return nil
|
|
}
|
|
|
|
// SetFinalized sets the finalized block.
|
|
func (bc *BlockChain) SetFinalized(header *types.Header) {
|
|
bc.currentFinalBlock.Store(header)
|
|
if header != nil {
|
|
rawdb.WriteFinalizedBlockHash(bc.db, header.Hash())
|
|
headFinalizedBlockGauge.Update(int64(header.Number.Uint64()))
|
|
} else {
|
|
rawdb.WriteFinalizedBlockHash(bc.db, common.Hash{})
|
|
headFinalizedBlockGauge.Update(0)
|
|
}
|
|
}
|
|
|
|
// SetSafe sets the safe block.
|
|
func (bc *BlockChain) SetSafe(header *types.Header) {
|
|
bc.currentSafeBlock.Store(header)
|
|
if header != nil {
|
|
headSafeBlockGauge.Update(int64(header.Number.Uint64()))
|
|
} else {
|
|
headSafeBlockGauge.Update(0)
|
|
}
|
|
}
|
|
|
|
// setHeadBeyondRoot rewinds the local chain to a new head with the extra condition
|
|
// that the rewind must pass the specified state root. This method is meant to be
|
|
// used when rewinding with snapshots enabled to ensure that we go back further than
|
|
// persistent disk layer. Depending on whether the node was snap synced or full, and
|
|
// in which state, the method will try to delete minimal data from disk whilst
|
|
// retaining chain consistency.
|
|
//
|
|
// The method also works in timestamp mode if `head == 0` but `time != 0`. In that
|
|
// case blocks are rolled back until the new head becomes older or equal to the
|
|
// requested time. If both `head` and `time` is 0, the chain is rewound to genesis.
|
|
//
|
|
// The method returns the block number where the requested root cap was found.
|
|
func (bc *BlockChain) setHeadBeyondRoot(head uint64, time uint64, root common.Hash, repair bool) (uint64, error) {
|
|
if !bc.chainmu.TryLock() {
|
|
return 0, errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
// Track the block number of the requested root hash
|
|
var rootNumber uint64 // (no root == always 0)
|
|
|
|
// Retrieve the last pivot block to short circuit rollbacks beyond it and the
|
|
// current freezer limit to start nuking id underflown
|
|
pivot := rawdb.ReadLastPivotNumber(bc.db)
|
|
frozen, _ := bc.db.Ancients()
|
|
|
|
updateFn := func(db ethdb.KeyValueWriter, header *types.Header) (*types.Header, bool) {
|
|
// Rewind the blockchain, ensuring we don't end up with a stateless head
|
|
// block. Note, depth equality is permitted to allow using SetHead as a
|
|
// chain reparation mechanism without deleting any data!
|
|
if currentBlock := bc.CurrentBlock(); currentBlock != nil && header.Number.Uint64() <= currentBlock.Number.Uint64() {
|
|
newHeadBlock := bc.GetBlock(header.Hash(), header.Number.Uint64())
|
|
if newHeadBlock == nil {
|
|
log.Error("Gap in the chain, rewinding to genesis", "number", header.Number, "hash", header.Hash())
|
|
newHeadBlock = bc.genesisBlock
|
|
} else {
|
|
// Block exists. Keep rewinding until either we find one with state
|
|
// or until we exceed the optional threshold root hash
|
|
beyondRoot := (root == common.Hash{}) // Flag whether we're beyond the requested root (no root, always true)
|
|
|
|
for {
|
|
// If a root threshold was requested but not yet crossed, check
|
|
if root != (common.Hash{}) && !beyondRoot && newHeadBlock.Root() == root {
|
|
beyondRoot, rootNumber = true, newHeadBlock.NumberU64()
|
|
}
|
|
if !bc.HasState(newHeadBlock.Root()) && !bc.stateRecoverable(newHeadBlock.Root()) {
|
|
log.Trace("Block state missing, rewinding further", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash())
|
|
if pivot == nil || newHeadBlock.NumberU64() > *pivot {
|
|
parent := bc.GetBlock(newHeadBlock.ParentHash(), newHeadBlock.NumberU64()-1)
|
|
if parent != nil {
|
|
newHeadBlock = parent
|
|
continue
|
|
}
|
|
log.Error("Missing block in the middle, aiming genesis", "number", newHeadBlock.NumberU64()-1, "hash", newHeadBlock.ParentHash())
|
|
newHeadBlock = bc.genesisBlock
|
|
} else {
|
|
log.Trace("Rewind passed pivot, aiming genesis", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash(), "pivot", *pivot)
|
|
newHeadBlock = bc.genesisBlock
|
|
}
|
|
}
|
|
if beyondRoot || newHeadBlock.NumberU64() == 0 {
|
|
if !bc.HasState(newHeadBlock.Root()) && bc.stateRecoverable(newHeadBlock.Root()) {
|
|
// Rewind to a block with recoverable state. If the state is
|
|
// missing, run the state recovery here.
|
|
if err := bc.triedb.Recover(newHeadBlock.Root()); err != nil {
|
|
log.Crit("Failed to rollback state", "err", err) // Shouldn't happen
|
|
}
|
|
log.Debug("Rewound to block with state", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash())
|
|
}
|
|
break
|
|
}
|
|
log.Debug("Skipping block with threshold state", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash(), "root", newHeadBlock.Root())
|
|
newHeadBlock = bc.GetBlock(newHeadBlock.ParentHash(), newHeadBlock.NumberU64()-1) // Keep rewinding
|
|
}
|
|
}
|
|
rawdb.WriteHeadBlockHash(db, newHeadBlock.Hash())
|
|
|
|
// Degrade the chain markers if they are explicitly reverted.
|
|
// In theory we should update all in-memory markers in the
|
|
// last step, however the direction of SetHead is from high
|
|
// to low, so it's safe to update in-memory markers directly.
|
|
bc.currentBlock.Store(newHeadBlock.Header())
|
|
headBlockGauge.Update(int64(newHeadBlock.NumberU64()))
|
|
|
|
// The head state is missing, which is only possible in the path-based
|
|
// scheme. This situation occurs when the chain head is rewound below
|
|
// the pivot point. In this scenario, there is no possible recovery
|
|
// approach except for rerunning a snap sync. Do nothing here until the
|
|
// state syncer picks it up.
|
|
if !bc.HasState(newHeadBlock.Root()) {
|
|
log.Info("Chain is stateless, wait state sync", "number", newHeadBlock.Number(), "hash", newHeadBlock.Hash())
|
|
}
|
|
}
|
|
// Rewind the snap block in a simpleton way to the target head
|
|
if currentSnapBlock := bc.CurrentSnapBlock(); currentSnapBlock != nil && header.Number.Uint64() < currentSnapBlock.Number.Uint64() {
|
|
newHeadSnapBlock := bc.GetBlock(header.Hash(), header.Number.Uint64())
|
|
// If either blocks reached nil, reset to the genesis state
|
|
if newHeadSnapBlock == nil {
|
|
newHeadSnapBlock = bc.genesisBlock
|
|
}
|
|
rawdb.WriteHeadFastBlockHash(db, newHeadSnapBlock.Hash())
|
|
|
|
// Degrade the chain markers if they are explicitly reverted.
|
|
// In theory we should update all in-memory markers in the
|
|
// last step, however the direction of SetHead is from high
|
|
// to low, so it's safe the update in-memory markers directly.
|
|
bc.currentSnapBlock.Store(newHeadSnapBlock.Header())
|
|
headFastBlockGauge.Update(int64(newHeadSnapBlock.NumberU64()))
|
|
}
|
|
var (
|
|
headHeader = bc.CurrentBlock()
|
|
headNumber = headHeader.Number.Uint64()
|
|
)
|
|
// If setHead underflown the freezer threshold and the block processing
|
|
// intent afterwards is full block importing, delete the chain segment
|
|
// between the stateful-block and the sethead target.
|
|
var wipe bool
|
|
if headNumber+1 < frozen {
|
|
wipe = pivot == nil || headNumber >= *pivot
|
|
}
|
|
return headHeader, wipe // Only force wipe if full synced
|
|
}
|
|
// Rewind the header chain, deleting all block bodies until then
|
|
delFn := func(db ethdb.KeyValueWriter, hash common.Hash, num uint64) {
|
|
// Ignore the error here since light client won't hit this path
|
|
frozen, _ := bc.db.Ancients()
|
|
if num+1 <= frozen {
|
|
// Truncate all relative data(header, total difficulty, body, receipt
|
|
// and canonical hash) from ancient store.
|
|
if _, err := bc.db.TruncateHead(num); err != nil {
|
|
log.Crit("Failed to truncate ancient data", "number", num, "err", err)
|
|
}
|
|
// Remove the hash <-> number mapping from the active store.
|
|
rawdb.DeleteHeaderNumber(db, hash)
|
|
} else {
|
|
// Remove relative body and receipts from the active store.
|
|
// The header, total difficulty and canonical hash will be
|
|
// removed in the hc.SetHead function.
|
|
rawdb.DeleteBody(db, hash, num)
|
|
rawdb.DeleteReceipts(db, hash, num)
|
|
}
|
|
// Todo(rjl493456442) txlookup, bloombits, etc
|
|
}
|
|
// If SetHead was only called as a chain reparation method, try to skip
|
|
// touching the header chain altogether, unless the freezer is broken
|
|
if repair {
|
|
if target, force := updateFn(bc.db, bc.CurrentBlock()); force {
|
|
bc.hc.SetHead(target.Number.Uint64(), updateFn, delFn)
|
|
}
|
|
} else {
|
|
// Rewind the chain to the requested head and keep going backwards until a
|
|
// block with a state is found or snap sync pivot is passed
|
|
if time > 0 {
|
|
log.Warn("Rewinding blockchain to timestamp", "target", time)
|
|
bc.hc.SetHeadWithTimestamp(time, updateFn, delFn)
|
|
} else {
|
|
log.Warn("Rewinding blockchain to block", "target", head)
|
|
bc.hc.SetHead(head, updateFn, delFn)
|
|
}
|
|
}
|
|
// Clear out any stale content from the caches
|
|
bc.bodyCache.Purge()
|
|
bc.bodyRLPCache.Purge()
|
|
bc.receiptsCache.Purge()
|
|
bc.blockCache.Purge()
|
|
bc.txLookupCache.Purge()
|
|
bc.futureBlocks.Purge()
|
|
|
|
// Clear safe block, finalized block if needed
|
|
if safe := bc.CurrentSafeBlock(); safe != nil && head < safe.Number.Uint64() {
|
|
log.Warn("SetHead invalidated safe block")
|
|
bc.SetSafe(nil)
|
|
}
|
|
if finalized := bc.CurrentFinalBlock(); finalized != nil && head < finalized.Number.Uint64() {
|
|
log.Error("SetHead invalidated finalized block")
|
|
bc.SetFinalized(nil)
|
|
}
|
|
return rootNumber, bc.loadLastState()
|
|
}
|
|
|
|
// SnapSyncCommitHead sets the current head block to the one defined by the hash
|
|
// irrelevant what the chain contents were prior.
|
|
func (bc *BlockChain) SnapSyncCommitHead(hash common.Hash) error {
|
|
// Make sure that both the block as well at its state trie exists
|
|
block := bc.GetBlockByHash(hash)
|
|
if block == nil {
|
|
return fmt.Errorf("non existent block [%x..]", hash[:4])
|
|
}
|
|
// Reset the trie database with the fresh snap synced state.
|
|
root := block.Root()
|
|
if bc.triedb.Scheme() == rawdb.PathScheme {
|
|
if err := bc.triedb.Enable(root); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if !bc.HasState(root) {
|
|
return fmt.Errorf("non existent state [%x..]", root[:4])
|
|
}
|
|
// If all checks out, manually set the head block.
|
|
if !bc.chainmu.TryLock() {
|
|
return errChainStopped
|
|
}
|
|
bc.currentBlock.Store(block.Header())
|
|
headBlockGauge.Update(int64(block.NumberU64()))
|
|
bc.chainmu.Unlock()
|
|
|
|
// Destroy any existing state snapshot and regenerate it in the background,
|
|
// also resuming the normal maintenance of any previously paused snapshot.
|
|
if bc.snaps != nil {
|
|
bc.snaps.Rebuild(root)
|
|
}
|
|
log.Info("Committed new head block", "number", block.Number(), "hash", hash)
|
|
return nil
|
|
}
|
|
|
|
// Reset purges the entire blockchain, restoring it to its genesis state.
|
|
func (bc *BlockChain) Reset() error {
|
|
return bc.ResetWithGenesisBlock(bc.genesisBlock)
|
|
}
|
|
|
|
// ResetWithGenesisBlock purges the entire blockchain, restoring it to the
|
|
// specified genesis state.
|
|
func (bc *BlockChain) ResetWithGenesisBlock(genesis *types.Block) error {
|
|
// Dump the entire block chain and purge the caches
|
|
if err := bc.SetHead(0); err != nil {
|
|
return err
|
|
}
|
|
if !bc.chainmu.TryLock() {
|
|
return errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
// Prepare the genesis block and reinitialise the chain
|
|
batch := bc.db.NewBatch()
|
|
rawdb.WriteTd(batch, genesis.Hash(), genesis.NumberU64(), genesis.Difficulty())
|
|
rawdb.WriteBlock(batch, genesis)
|
|
if err := batch.Write(); err != nil {
|
|
log.Crit("Failed to write genesis block", "err", err)
|
|
}
|
|
bc.writeHeadBlock(genesis)
|
|
|
|
// Last update all in-memory chain markers
|
|
bc.genesisBlock = genesis
|
|
bc.currentBlock.Store(bc.genesisBlock.Header())
|
|
headBlockGauge.Update(int64(bc.genesisBlock.NumberU64()))
|
|
bc.hc.SetGenesis(bc.genesisBlock.Header())
|
|
bc.hc.SetCurrentHeader(bc.genesisBlock.Header())
|
|
bc.currentSnapBlock.Store(bc.genesisBlock.Header())
|
|
headFastBlockGauge.Update(int64(bc.genesisBlock.NumberU64()))
|
|
return nil
|
|
}
|
|
|
|
// Export writes the active chain to the given writer.
|
|
func (bc *BlockChain) Export(w io.Writer) error {
|
|
return bc.ExportN(w, uint64(0), bc.CurrentBlock().Number.Uint64())
|
|
}
|
|
|
|
// ExportN writes a subset of the active chain to the given writer.
|
|
func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error {
|
|
if first > last {
|
|
return fmt.Errorf("export failed: first (%d) is greater than last (%d)", first, last)
|
|
}
|
|
log.Info("Exporting batch of blocks", "count", last-first+1)
|
|
|
|
var (
|
|
parentHash common.Hash
|
|
start = time.Now()
|
|
reported = time.Now()
|
|
)
|
|
for nr := first; nr <= last; nr++ {
|
|
block := bc.GetBlockByNumber(nr)
|
|
if block == nil {
|
|
return fmt.Errorf("export failed on #%d: not found", nr)
|
|
}
|
|
if nr > first && block.ParentHash() != parentHash {
|
|
return errors.New("export failed: chain reorg during export")
|
|
}
|
|
parentHash = block.Hash()
|
|
if err := block.EncodeRLP(w); err != nil {
|
|
return err
|
|
}
|
|
if time.Since(reported) >= statsReportLimit {
|
|
log.Info("Exporting blocks", "exported", block.NumberU64()-first, "elapsed", common.PrettyDuration(time.Since(start)))
|
|
reported = time.Now()
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// writeHeadBlock injects a new head block into the current block chain. This method
|
|
// assumes that the block is indeed a true head. It will also reset the head
|
|
// header and the head snap sync block to this very same block if they are older
|
|
// or if they are on a different side chain.
|
|
//
|
|
// Note, this function assumes that the `mu` mutex is held!
|
|
func (bc *BlockChain) writeHeadBlock(block *types.Block) {
|
|
// Add the block to the canonical chain number scheme and mark as the head
|
|
batch := bc.db.NewBatch()
|
|
rawdb.WriteHeadHeaderHash(batch, block.Hash())
|
|
rawdb.WriteHeadFastBlockHash(batch, block.Hash())
|
|
rawdb.WriteCanonicalHash(batch, block.Hash(), block.NumberU64())
|
|
rawdb.WriteTxLookupEntriesByBlock(batch, block)
|
|
rawdb.WriteHeadBlockHash(batch, block.Hash())
|
|
|
|
// Flush the whole batch into the disk, exit the node if failed
|
|
if err := batch.Write(); err != nil {
|
|
log.Crit("Failed to update chain indexes and markers", "err", err)
|
|
}
|
|
// Update all in-memory chain markers in the last step
|
|
bc.hc.SetCurrentHeader(block.Header())
|
|
|
|
bc.currentSnapBlock.Store(block.Header())
|
|
headFastBlockGauge.Update(int64(block.NumberU64()))
|
|
|
|
bc.currentBlock.Store(block.Header())
|
|
headBlockGauge.Update(int64(block.NumberU64()))
|
|
}
|
|
|
|
// stopWithoutSaving stops the blockchain service. If any imports are currently in progress
|
|
// it will abort them using the procInterrupt. This method stops all running
|
|
// goroutines, but does not do all the post-stop work of persisting data.
|
|
// OBS! It is generally recommended to use the Stop method!
|
|
// This method has been exposed to allow tests to stop the blockchain while simulating
|
|
// a crash.
|
|
func (bc *BlockChain) stopWithoutSaving() {
|
|
if !bc.stopping.CompareAndSwap(false, true) {
|
|
return
|
|
}
|
|
// Signal shutdown tx indexer.
|
|
if bc.txIndexer != nil {
|
|
bc.txIndexer.close()
|
|
}
|
|
// Unsubscribe all subscriptions registered from blockchain.
|
|
bc.scope.Close()
|
|
|
|
// Signal shutdown to all goroutines.
|
|
close(bc.quit)
|
|
bc.StopInsert()
|
|
|
|
// Now wait for all chain modifications to end and persistent goroutines to exit.
|
|
//
|
|
// Note: Close waits for the mutex to become available, i.e. any running chain
|
|
// modification will have exited when Close returns. Since we also called StopInsert,
|
|
// the mutex should become available quickly. It cannot be taken again after Close has
|
|
// returned.
|
|
bc.chainmu.Close()
|
|
bc.wg.Wait()
|
|
}
|
|
|
|
// Stop stops the blockchain service. If any imports are currently in progress
|
|
// it will abort them using the procInterrupt.
|
|
func (bc *BlockChain) Stop() {
|
|
bc.stopWithoutSaving()
|
|
|
|
// Ensure that the entirety of the state snapshot is journaled to disk.
|
|
var snapBase common.Hash
|
|
if bc.snaps != nil {
|
|
var err error
|
|
if snapBase, err = bc.snaps.Journal(bc.CurrentBlock().Root); err != nil {
|
|
log.Error("Failed to journal state snapshot", "err", err)
|
|
}
|
|
bc.snaps.Release()
|
|
}
|
|
if bc.triedb.Scheme() == rawdb.PathScheme {
|
|
// Ensure that the in-memory trie nodes are journaled to disk properly.
|
|
if err := bc.triedb.Journal(bc.CurrentBlock().Root); err != nil {
|
|
log.Info("Failed to journal in-memory trie nodes", "err", err)
|
|
}
|
|
} else {
|
|
// Ensure the state of a recent block is also stored to disk before exiting.
|
|
// We're writing three different states to catch different restart scenarios:
|
|
// - HEAD: So we don't need to reprocess any blocks in the general case
|
|
// - HEAD-1: So we don't do large reorgs if our HEAD becomes an uncle
|
|
// - HEAD-127: So we have a hard limit on the number of blocks reexecuted
|
|
if !bc.cacheConfig.TrieDirtyDisabled {
|
|
triedb := bc.triedb
|
|
|
|
for _, offset := range []uint64{0, 1, TriesInMemory - 1} {
|
|
if number := bc.CurrentBlock().Number.Uint64(); number > offset {
|
|
recent := bc.GetBlockByNumber(number - offset)
|
|
|
|
log.Info("Writing cached state to disk", "block", recent.Number(), "hash", recent.Hash(), "root", recent.Root())
|
|
if err := triedb.Commit(recent.Root(), true); err != nil {
|
|
log.Error("Failed to commit recent state trie", "err", err)
|
|
}
|
|
}
|
|
}
|
|
if snapBase != (common.Hash{}) {
|
|
log.Info("Writing snapshot state to disk", "root", snapBase)
|
|
if err := triedb.Commit(snapBase, true); err != nil {
|
|
log.Error("Failed to commit recent state trie", "err", err)
|
|
}
|
|
}
|
|
for !bc.triegc.Empty() {
|
|
triedb.Dereference(bc.triegc.PopItem())
|
|
}
|
|
if _, nodes, _ := triedb.Size(); nodes != 0 { // all memory is contained within the nodes return for hashdb
|
|
log.Error("Dangling trie nodes after full cleanup")
|
|
}
|
|
}
|
|
}
|
|
// Close the trie database, release all the held resources as the last step.
|
|
if err := bc.triedb.Close(); err != nil {
|
|
log.Error("Failed to close trie database", "err", err)
|
|
}
|
|
log.Info("Blockchain stopped")
|
|
}
|
|
|
|
// StopInsert interrupts all insertion methods, causing them to return
|
|
// errInsertionInterrupted as soon as possible. Insertion is permanently disabled after
|
|
// calling this method.
|
|
func (bc *BlockChain) StopInsert() {
|
|
bc.procInterrupt.Store(true)
|
|
}
|
|
|
|
// insertStopped returns true after StopInsert has been called.
|
|
func (bc *BlockChain) insertStopped() bool {
|
|
return bc.procInterrupt.Load()
|
|
}
|
|
|
|
func (bc *BlockChain) procFutureBlocks() {
|
|
blocks := make([]*types.Block, 0, bc.futureBlocks.Len())
|
|
for _, hash := range bc.futureBlocks.Keys() {
|
|
if block, exist := bc.futureBlocks.Peek(hash); exist {
|
|
blocks = append(blocks, block)
|
|
}
|
|
}
|
|
if len(blocks) > 0 {
|
|
slices.SortFunc(blocks, func(a, b *types.Block) int {
|
|
return a.Number().Cmp(b.Number())
|
|
})
|
|
// Insert one by one as chain insertion needs contiguous ancestry between blocks
|
|
for i := range blocks {
|
|
bc.InsertChain(blocks[i : i+1])
|
|
}
|
|
}
|
|
}
|
|
|
|
// WriteStatus status of write
|
|
type WriteStatus byte
|
|
|
|
const (
|
|
NonStatTy WriteStatus = iota
|
|
CanonStatTy
|
|
SideStatTy
|
|
)
|
|
|
|
// InsertReceiptChain attempts to complete an already existing header chain with
|
|
// transaction and receipt data.
|
|
func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain []types.Receipts, ancientLimit uint64) (int, error) {
|
|
// We don't require the chainMu here since we want to maximize the
|
|
// concurrency of header insertion and receipt insertion.
|
|
bc.wg.Add(1)
|
|
defer bc.wg.Done()
|
|
|
|
var (
|
|
ancientBlocks, liveBlocks types.Blocks
|
|
ancientReceipts, liveReceipts []types.Receipts
|
|
)
|
|
// Do a sanity check that the provided chain is actually ordered and linked
|
|
for i, block := range blockChain {
|
|
if i != 0 {
|
|
prev := blockChain[i-1]
|
|
if block.NumberU64() != prev.NumberU64()+1 || block.ParentHash() != prev.Hash() {
|
|
log.Error("Non contiguous receipt insert",
|
|
"number", block.Number(), "hash", block.Hash(), "parent", block.ParentHash(),
|
|
"prevnumber", prev.Number(), "prevhash", prev.Hash())
|
|
return 0, fmt.Errorf("non contiguous insert: item %d is #%d [%x..], item %d is #%d [%x..] (parent [%x..])",
|
|
i-1, prev.NumberU64(), prev.Hash().Bytes()[:4],
|
|
i, block.NumberU64(), block.Hash().Bytes()[:4], block.ParentHash().Bytes()[:4])
|
|
}
|
|
}
|
|
if block.NumberU64() <= ancientLimit {
|
|
ancientBlocks, ancientReceipts = append(ancientBlocks, block), append(ancientReceipts, receiptChain[i])
|
|
} else {
|
|
liveBlocks, liveReceipts = append(liveBlocks, block), append(liveReceipts, receiptChain[i])
|
|
}
|
|
|
|
// Here we also validate that blob transactions in the block do not contain a sidecar.
|
|
// While the sidecar does not affect the block hash / tx hash, sending blobs within a block is not allowed.
|
|
for txIndex, tx := range block.Transactions() {
|
|
if tx.Type() == types.BlobTxType && tx.BlobTxSidecar() != nil {
|
|
return 0, fmt.Errorf("block #%d contains unexpected blob sidecar in tx at index %d", block.NumberU64(), txIndex)
|
|
}
|
|
}
|
|
}
|
|
|
|
var (
|
|
stats = struct{ processed, ignored int32 }{}
|
|
start = time.Now()
|
|
size = int64(0)
|
|
)
|
|
|
|
// updateHead updates the head snap sync block if the inserted blocks are better
|
|
// and returns an indicator whether the inserted blocks are canonical.
|
|
updateHead := func(head *types.Block) bool {
|
|
if !bc.chainmu.TryLock() {
|
|
return false
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
// Rewind may have occurred, skip in that case.
|
|
if bc.CurrentHeader().Number.Cmp(head.Number()) >= 0 {
|
|
reorg, err := bc.forker.ReorgNeeded(bc.CurrentSnapBlock(), head.Header())
|
|
if err != nil {
|
|
log.Warn("Reorg failed", "err", err)
|
|
return false
|
|
} else if !reorg {
|
|
return false
|
|
}
|
|
rawdb.WriteHeadFastBlockHash(bc.db, head.Hash())
|
|
bc.currentSnapBlock.Store(head.Header())
|
|
headFastBlockGauge.Update(int64(head.NumberU64()))
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
// writeAncient writes blockchain and corresponding receipt chain into ancient store.
|
|
//
|
|
// this function only accepts canonical chain data. All side chain will be reverted
|
|
// eventually.
|
|
writeAncient := func(blockChain types.Blocks, receiptChain []types.Receipts) (int, error) {
|
|
first := blockChain[0]
|
|
last := blockChain[len(blockChain)-1]
|
|
|
|
// Ensure genesis is in ancients.
|
|
if first.NumberU64() == 1 {
|
|
if frozen, _ := bc.db.Ancients(); frozen == 0 {
|
|
td := bc.genesisBlock.Difficulty()
|
|
writeSize, err := rawdb.WriteAncientBlocks(bc.db, []*types.Block{bc.genesisBlock}, []types.Receipts{nil}, td)
|
|
if err != nil {
|
|
log.Error("Error writing genesis to ancients", "err", err)
|
|
return 0, err
|
|
}
|
|
size += writeSize
|
|
log.Info("Wrote genesis to ancients")
|
|
}
|
|
}
|
|
// Before writing the blocks to the ancients, we need to ensure that
|
|
// they correspond to the what the headerchain 'expects'.
|
|
// We only check the last block/header, since it's a contiguous chain.
|
|
if !bc.HasHeader(last.Hash(), last.NumberU64()) {
|
|
return 0, fmt.Errorf("containing header #%d [%x..] unknown", last.Number(), last.Hash().Bytes()[:4])
|
|
}
|
|
|
|
// Write all chain data to ancients.
|
|
td := bc.GetTd(first.Hash(), first.NumberU64())
|
|
writeSize, err := rawdb.WriteAncientBlocks(bc.db, blockChain, receiptChain, td)
|
|
if err != nil {
|
|
log.Error("Error importing chain data to ancients", "err", err)
|
|
return 0, err
|
|
}
|
|
size += writeSize
|
|
|
|
// Sync the ancient store explicitly to ensure all data has been flushed to disk.
|
|
if err := bc.db.Sync(); err != nil {
|
|
return 0, err
|
|
}
|
|
// Update the current snap block because all block data is now present in DB.
|
|
previousSnapBlock := bc.CurrentSnapBlock().Number.Uint64()
|
|
if !updateHead(blockChain[len(blockChain)-1]) {
|
|
// We end up here if the header chain has reorg'ed, and the blocks/receipts
|
|
// don't match the canonical chain.
|
|
if _, err := bc.db.TruncateHead(previousSnapBlock + 1); err != nil {
|
|
log.Error("Can't truncate ancient store after failed insert", "err", err)
|
|
}
|
|
return 0, errSideChainReceipts
|
|
}
|
|
|
|
// Delete block data from the main database.
|
|
var (
|
|
batch = bc.db.NewBatch()
|
|
canonHashes = make(map[common.Hash]struct{})
|
|
)
|
|
for _, block := range blockChain {
|
|
canonHashes[block.Hash()] = struct{}{}
|
|
if block.NumberU64() == 0 {
|
|
continue
|
|
}
|
|
rawdb.DeleteCanonicalHash(batch, block.NumberU64())
|
|
rawdb.DeleteBlockWithoutNumber(batch, block.Hash(), block.NumberU64())
|
|
}
|
|
// Delete side chain hash-to-number mappings.
|
|
for _, nh := range rawdb.ReadAllHashesInRange(bc.db, first.NumberU64(), last.NumberU64()) {
|
|
if _, canon := canonHashes[nh.Hash]; !canon {
|
|
rawdb.DeleteHeader(batch, nh.Hash, nh.Number)
|
|
}
|
|
}
|
|
if err := batch.Write(); err != nil {
|
|
return 0, err
|
|
}
|
|
stats.processed += int32(len(blockChain))
|
|
return 0, nil
|
|
}
|
|
|
|
// writeLive writes blockchain and corresponding receipt chain into active store.
|
|
writeLive := func(blockChain types.Blocks, receiptChain []types.Receipts) (int, error) {
|
|
var (
|
|
skipPresenceCheck = false
|
|
batch = bc.db.NewBatch()
|
|
)
|
|
for i, block := range blockChain {
|
|
// Short circuit insertion if shutting down or processing failed
|
|
if bc.insertStopped() {
|
|
return 0, errInsertionInterrupted
|
|
}
|
|
// Short circuit if the owner header is unknown
|
|
if !bc.HasHeader(block.Hash(), block.NumberU64()) {
|
|
return i, fmt.Errorf("containing header #%d [%x..] unknown", block.Number(), block.Hash().Bytes()[:4])
|
|
}
|
|
if !skipPresenceCheck {
|
|
// Ignore if the entire data is already known
|
|
if bc.HasBlock(block.Hash(), block.NumberU64()) {
|
|
stats.ignored++
|
|
continue
|
|
} else {
|
|
// If block N is not present, neither are the later blocks.
|
|
// This should be true, but if we are mistaken, the shortcut
|
|
// here will only cause overwriting of some existing data
|
|
skipPresenceCheck = true
|
|
}
|
|
}
|
|
// Write all the data out into the database
|
|
rawdb.WriteBody(batch, block.Hash(), block.NumberU64(), block.Body())
|
|
rawdb.WriteReceipts(batch, block.Hash(), block.NumberU64(), receiptChain[i])
|
|
|
|
// Write everything belongs to the blocks into the database. So that
|
|
// we can ensure all components of body is completed(body, receipts)
|
|
// except transaction indexes(will be created once sync is finished).
|
|
if batch.ValueSize() >= ethdb.IdealBatchSize {
|
|
if err := batch.Write(); err != nil {
|
|
return 0, err
|
|
}
|
|
size += int64(batch.ValueSize())
|
|
batch.Reset()
|
|
}
|
|
stats.processed++
|
|
}
|
|
// Write everything belongs to the blocks into the database. So that
|
|
// we can ensure all components of body is completed(body, receipts,
|
|
// tx indexes)
|
|
if batch.ValueSize() > 0 {
|
|
size += int64(batch.ValueSize())
|
|
if err := batch.Write(); err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
updateHead(blockChain[len(blockChain)-1])
|
|
return 0, nil
|
|
}
|
|
|
|
// Write downloaded chain data and corresponding receipt chain data
|
|
if len(ancientBlocks) > 0 {
|
|
if n, err := writeAncient(ancientBlocks, ancientReceipts); err != nil {
|
|
if err == errInsertionInterrupted {
|
|
return 0, nil
|
|
}
|
|
return n, err
|
|
}
|
|
}
|
|
if len(liveBlocks) > 0 {
|
|
if n, err := writeLive(liveBlocks, liveReceipts); err != nil {
|
|
if err == errInsertionInterrupted {
|
|
return 0, nil
|
|
}
|
|
return n, err
|
|
}
|
|
}
|
|
var (
|
|
head = blockChain[len(blockChain)-1]
|
|
context = []interface{}{
|
|
"count", stats.processed, "elapsed", common.PrettyDuration(time.Since(start)),
|
|
"number", head.Number(), "hash", head.Hash(), "age", common.PrettyAge(time.Unix(int64(head.Time()), 0)),
|
|
"size", common.StorageSize(size),
|
|
}
|
|
)
|
|
if stats.ignored > 0 {
|
|
context = append(context, []interface{}{"ignored", stats.ignored}...)
|
|
}
|
|
log.Debug("Imported new block receipts", context...)
|
|
|
|
return 0, nil
|
|
}
|
|
|
|
// writeBlockWithoutState writes only the block and its metadata to the database,
|
|
// but does not write any state. This is used to construct competing side forks
|
|
// up to the point where they exceed the canonical total difficulty.
|
|
func (bc *BlockChain) writeBlockWithoutState(block *types.Block, td *big.Int) (err error) {
|
|
if bc.insertStopped() {
|
|
return errInsertionInterrupted
|
|
}
|
|
batch := bc.db.NewBatch()
|
|
rawdb.WriteTd(batch, block.Hash(), block.NumberU64(), td)
|
|
rawdb.WriteBlock(batch, block)
|
|
if err := batch.Write(); err != nil {
|
|
log.Crit("Failed to write block into disk", "err", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// writeKnownBlock updates the head block flag with a known block
|
|
// and introduces chain reorg if necessary.
|
|
func (bc *BlockChain) writeKnownBlock(block *types.Block) error {
|
|
current := bc.CurrentBlock()
|
|
if block.ParentHash() != current.Hash() {
|
|
if err := bc.reorg(current, block); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
bc.writeHeadBlock(block)
|
|
return nil
|
|
}
|
|
|
|
// writeBlockWithState writes block, metadata and corresponding state data to the
|
|
// database.
|
|
func (bc *BlockChain) writeBlockWithState(block *types.Block, receipts []*types.Receipt, state *state.StateDB) error {
|
|
//begin PluGeth injection
|
|
var interval time.Duration
|
|
_ = pluginSetTrieFlushIntervalClone(interval) // this is being called here to engage a testing scenario
|
|
//end PluGeth injection
|
|
|
|
// Calculate the total difficulty of the block
|
|
ptd := bc.GetTd(block.ParentHash(), block.NumberU64()-1)
|
|
if ptd == nil {
|
|
return consensus.ErrUnknownAncestor
|
|
}
|
|
// Make sure no inconsistent state is leaked during insertion
|
|
externTd := new(big.Int).Add(block.Difficulty(), ptd)
|
|
|
|
// Irrelevant of the canonical status, write the block itself to the database.
|
|
//
|
|
// Note all the components of block(td, hash->number map, header, body, receipts)
|
|
// should be written atomically. BlockBatch is used for containing all components.
|
|
blockBatch := bc.db.NewBatch()
|
|
rawdb.WriteTd(blockBatch, block.Hash(), block.NumberU64(), externTd)
|
|
rawdb.WriteBlock(blockBatch, block)
|
|
rawdb.WriteReceipts(blockBatch, block.Hash(), block.NumberU64(), receipts)
|
|
rawdb.WritePreimages(blockBatch, state.Preimages())
|
|
if err := blockBatch.Write(); err != nil {
|
|
log.Crit("Failed to write block into disk", "err", err)
|
|
}
|
|
// Commit all cached state changes into underlying memory database.
|
|
root, err := state.Commit(block.NumberU64(), bc.chainConfig.IsEIP158(block.Number()))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// If node is running in path mode, skip explicit gc operation
|
|
// which is unnecessary in this mode.
|
|
if bc.triedb.Scheme() == rawdb.PathScheme {
|
|
return nil
|
|
}
|
|
// If we're running an archive node, always flush
|
|
if bc.cacheConfig.TrieDirtyDisabled {
|
|
return bc.triedb.Commit(root, false)
|
|
}
|
|
// Full but not archive node, do proper garbage collection
|
|
bc.triedb.Reference(root, common.Hash{}) // metadata reference to keep trie alive
|
|
bc.triegc.Push(root, -int64(block.NumberU64()))
|
|
|
|
// Flush limits are not considered for the first TriesInMemory blocks.
|
|
current := block.NumberU64()
|
|
if current <= TriesInMemory {
|
|
return nil
|
|
}
|
|
// If we exceeded our memory allowance, flush matured singleton nodes to disk
|
|
var (
|
|
_, nodes, imgs = bc.triedb.Size() // all memory is contained within the nodes return for hashdb
|
|
limit = common.StorageSize(bc.cacheConfig.TrieDirtyLimit) * 1024 * 1024
|
|
)
|
|
if nodes > limit || imgs > 4*1024*1024 {
|
|
bc.triedb.Cap(limit - ethdb.IdealBatchSize)
|
|
}
|
|
// Find the next state trie we need to commit
|
|
chosen := current - TriesInMemory
|
|
flushInterval := time.Duration(bc.flushInterval.Load())
|
|
// If we exceeded time allowance, flush an entire trie to disk
|
|
|
|
// begin PluGeth code injection
|
|
flushInterval = pluginSetTrieFlushIntervalClone(flushInterval)
|
|
// end PluGeth code injection
|
|
|
|
if bc.gcproc > flushInterval {
|
|
// If the header is missing (canonical chain behind), we're reorging a low
|
|
// diff sidechain. Suspend committing until this operation is completed.
|
|
header := bc.GetHeaderByNumber(chosen)
|
|
if header == nil {
|
|
log.Warn("Reorg in progress, trie commit postponed", "number", chosen)
|
|
} else {
|
|
// If we're exceeding limits but haven't reached a large enough memory gap,
|
|
// warn the user that the system is becoming unstable.
|
|
if chosen < bc.lastWrite+TriesInMemory && bc.gcproc >= 2*flushInterval {
|
|
log.Info("State in memory for too long, committing", "time", bc.gcproc, "allowance", flushInterval, "optimum", float64(chosen-bc.lastWrite)/TriesInMemory)
|
|
}
|
|
// Flush an entire trie and restart the counters
|
|
bc.triedb.Commit(header.Root, true)
|
|
bc.lastWrite = chosen
|
|
bc.gcproc = 0
|
|
}
|
|
}
|
|
// Garbage collect anything below our required write retention
|
|
for !bc.triegc.Empty() {
|
|
root, number := bc.triegc.Pop()
|
|
if uint64(-number) > chosen {
|
|
bc.triegc.Push(root, number)
|
|
break
|
|
}
|
|
bc.triedb.Dereference(root)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// WriteBlockAndSetHead writes the given block and all associated state to the database,
|
|
// and applies the block as the new chain head.
|
|
func (bc *BlockChain) WriteBlockAndSetHead(block *types.Block, receipts []*types.Receipt, logs []*types.Log, state *state.StateDB, emitHeadEvent bool) (status WriteStatus, err error) {
|
|
if !bc.chainmu.TryLock() {
|
|
return NonStatTy, errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
return bc.writeBlockAndSetHead(block, receipts, logs, state, emitHeadEvent)
|
|
}
|
|
|
|
// writeBlockAndSetHead is the internal implementation of WriteBlockAndSetHead.
|
|
// This function expects the chain mutex to be held.
|
|
func (bc *BlockChain) writeBlockAndSetHead(block *types.Block, receipts []*types.Receipt, logs []*types.Log, state *state.StateDB, emitHeadEvent bool) (status WriteStatus, err error) {
|
|
if err := bc.writeBlockWithState(block, receipts, state); err != nil {
|
|
return NonStatTy, err
|
|
}
|
|
currentBlock := bc.CurrentBlock()
|
|
reorg, err := bc.forker.ReorgNeeded(currentBlock, block.Header())
|
|
if err != nil {
|
|
return NonStatTy, err
|
|
}
|
|
if reorg {
|
|
// Reorganise the chain if the parent is not the head block
|
|
if block.ParentHash() != currentBlock.Hash() {
|
|
if err := bc.reorg(currentBlock, block); err != nil {
|
|
return NonStatTy, err
|
|
}
|
|
}
|
|
status = CanonStatTy
|
|
} else {
|
|
status = SideStatTy
|
|
}
|
|
// Set new head.
|
|
if status == CanonStatTy {
|
|
bc.writeHeadBlock(block)
|
|
}
|
|
bc.futureBlocks.Remove(block.Hash())
|
|
|
|
// ptd and externTd are both PluGeth injections
|
|
ptd := bc.GetTd(block.ParentHash(), block.NumberU64()-1)
|
|
if ptd == nil {
|
|
return NonStatTy, consensus.ErrUnknownAncestor
|
|
}
|
|
// Make sure no inconsistent state is leaked during insertion
|
|
externTd := new(big.Int).Add(block.Difficulty(), ptd)
|
|
|
|
if status == CanonStatTy {
|
|
//begin PluGeth code injection
|
|
pluginNewHead(block, block.Hash(), logs, externTd)
|
|
bc.chainFeed.Send(ChainEvent{Block: block, Hash: block.Hash(), Logs: logs})
|
|
if len(logs) > 0 {
|
|
bc.logsFeed.Send(logs)
|
|
}
|
|
// In theory, we should fire a ChainHeadEvent when we inject
|
|
// a canonical block, but sometimes we can insert a batch of
|
|
// canonical blocks. Avoid firing too many ChainHeadEvents,
|
|
// we will fire an accumulated ChainHeadEvent and disable fire
|
|
// event here.
|
|
if emitHeadEvent {
|
|
bc.chainHeadFeed.Send(ChainHeadEvent{Block: block})
|
|
}
|
|
} else {
|
|
pluginNewSideBlock(block, block.Hash(), logs)
|
|
bc.chainSideFeed.Send(ChainSideEvent{Block: block})
|
|
// end PluGeth code injection
|
|
}
|
|
return status, nil
|
|
}
|
|
|
|
// addFutureBlock checks if the block is within the max allowed window to get
|
|
// accepted for future processing, and returns an error if the block is too far
|
|
// ahead and was not added.
|
|
//
|
|
// TODO after the transition, the future block shouldn't be kept. Because
|
|
// it's not checked in the Geth side anymore.
|
|
func (bc *BlockChain) addFutureBlock(block *types.Block) error {
|
|
max := uint64(time.Now().Unix() + maxTimeFutureBlocks)
|
|
if block.Time() > max {
|
|
return fmt.Errorf("future block timestamp %v > allowed %v", block.Time(), max)
|
|
}
|
|
if block.Difficulty().Cmp(common.Big0) == 0 {
|
|
// Never add PoS blocks into the future queue
|
|
return nil
|
|
}
|
|
bc.futureBlocks.Add(block.Hash(), block)
|
|
return nil
|
|
}
|
|
|
|
// InsertChain attempts to insert the given batch of blocks in to the canonical
|
|
// chain or, otherwise, create a fork. If an error is returned it will return
|
|
// the index number of the failing block as well an error describing what went
|
|
// wrong. After insertion is done, all accumulated events will be fired.
|
|
func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) {
|
|
// Sanity check that we have something meaningful to import
|
|
if len(chain) == 0 {
|
|
return 0, nil
|
|
}
|
|
bc.blockProcFeed.Send(true)
|
|
defer bc.blockProcFeed.Send(false)
|
|
|
|
// Do a sanity check that the provided chain is actually ordered and linked.
|
|
for i := 1; i < len(chain); i++ {
|
|
block, prev := chain[i], chain[i-1]
|
|
if block.NumberU64() != prev.NumberU64()+1 || block.ParentHash() != prev.Hash() {
|
|
log.Error("Non contiguous block insert",
|
|
"number", block.Number(),
|
|
"hash", block.Hash(),
|
|
"parent", block.ParentHash(),
|
|
"prevnumber", prev.Number(),
|
|
"prevhash", prev.Hash(),
|
|
)
|
|
return 0, fmt.Errorf("non contiguous insert: item %d is #%d [%x..], item %d is #%d [%x..] (parent [%x..])", i-1, prev.NumberU64(),
|
|
prev.Hash().Bytes()[:4], i, block.NumberU64(), block.Hash().Bytes()[:4], block.ParentHash().Bytes()[:4])
|
|
}
|
|
}
|
|
// Pre-checks passed, start the full block imports
|
|
if !bc.chainmu.TryLock() {
|
|
return 0, errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
return bc.insertChain(chain, true)
|
|
}
|
|
|
|
// insertChain is the internal implementation of InsertChain, which assumes that
|
|
// 1) chains are contiguous, and 2) The chain mutex is held.
|
|
//
|
|
// This method is split out so that import batches that require re-injecting
|
|
// historical blocks can do so without releasing the lock, which could lead to
|
|
// racey behaviour. If a sidechain import is in progress, and the historic state
|
|
// is imported, but then new canon-head is added before the actual sidechain
|
|
// completes, then the historic state could be pruned again
|
|
func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool) (int, error) {
|
|
// If the chain is terminating, don't even bother starting up.
|
|
if bc.insertStopped() {
|
|
return 0, nil
|
|
}
|
|
|
|
// Start a parallel signature recovery (signer will fluke on fork transition, minimal perf loss)
|
|
SenderCacher.RecoverFromBlocks(types.MakeSigner(bc.chainConfig, chain[0].Number(), chain[0].Time()), chain)
|
|
|
|
var (
|
|
stats = insertStats{startTime: mclock.Now()}
|
|
lastCanon *types.Block
|
|
)
|
|
// Fire a single chain head event if we've progressed the chain
|
|
defer func() {
|
|
if lastCanon != nil && bc.CurrentBlock().Hash() == lastCanon.Hash() {
|
|
bc.chainHeadFeed.Send(ChainHeadEvent{lastCanon})
|
|
}
|
|
}()
|
|
// Start the parallel header verifier
|
|
headers := make([]*types.Header, len(chain))
|
|
for i, block := range chain {
|
|
headers[i] = block.Header()
|
|
}
|
|
abort, results := bc.engine.VerifyHeaders(bc, headers)
|
|
defer close(abort)
|
|
|
|
// Peek the error for the first block to decide the directing import logic
|
|
it := newInsertIterator(chain, results, bc.validator)
|
|
block, err := it.next()
|
|
|
|
// Left-trim all the known blocks that don't need to build snapshot
|
|
if bc.skipBlock(err, it) {
|
|
// First block (and state) is known
|
|
// 1. We did a roll-back, and should now do a re-import
|
|
// 2. The block is stored as a sidechain, and is lying about it's stateroot, and passes a stateroot
|
|
// from the canonical chain, which has not been verified.
|
|
// Skip all known blocks that are behind us.
|
|
var (
|
|
reorg bool
|
|
current = bc.CurrentBlock()
|
|
)
|
|
for block != nil && bc.skipBlock(err, it) {
|
|
reorg, err = bc.forker.ReorgNeeded(current, block.Header())
|
|
if err != nil {
|
|
return it.index, err
|
|
}
|
|
if reorg {
|
|
// Switch to import mode if the forker says the reorg is necessary
|
|
// and also the block is not on the canonical chain.
|
|
// In eth2 the forker always returns true for reorg decision (blindly trusting
|
|
// the external consensus engine), but in order to prevent the unnecessary
|
|
// reorgs when importing known blocks, the special case is handled here.
|
|
if block.NumberU64() > current.Number.Uint64() || bc.GetCanonicalHash(block.NumberU64()) != block.Hash() {
|
|
break
|
|
}
|
|
}
|
|
log.Debug("Ignoring already known block", "number", block.Number(), "hash", block.Hash())
|
|
stats.ignored++
|
|
|
|
block, err = it.next()
|
|
}
|
|
// The remaining blocks are still known blocks, the only scenario here is:
|
|
// During the snap sync, the pivot point is already submitted but rollback
|
|
// happens. Then node resets the head full block to a lower height via `rollback`
|
|
// and leaves a few known blocks in the database.
|
|
//
|
|
// When node runs a snap sync again, it can re-import a batch of known blocks via
|
|
// `insertChain` while a part of them have higher total difficulty than current
|
|
// head full block(new pivot point).
|
|
for block != nil && bc.skipBlock(err, it) {
|
|
log.Debug("Writing previously known block", "number", block.Number(), "hash", block.Hash())
|
|
if err := bc.writeKnownBlock(block); err != nil {
|
|
return it.index, err
|
|
}
|
|
lastCanon = block
|
|
|
|
block, err = it.next()
|
|
}
|
|
// Falls through to the block import
|
|
}
|
|
switch {
|
|
// First block is pruned
|
|
case errors.Is(err, consensus.ErrPrunedAncestor):
|
|
if setHead {
|
|
// First block is pruned, insert as sidechain and reorg only if TD grows enough
|
|
log.Debug("Pruned ancestor, inserting as sidechain", "number", block.Number(), "hash", block.Hash())
|
|
return bc.insertSideChain(block, it)
|
|
} else {
|
|
// We're post-merge and the parent is pruned, try to recover the parent state
|
|
log.Debug("Pruned ancestor", "number", block.Number(), "hash", block.Hash())
|
|
_, err := bc.recoverAncestors(block)
|
|
return it.index, err
|
|
}
|
|
// First block is future, shove it (and all children) to the future queue (unknown ancestor)
|
|
case errors.Is(err, consensus.ErrFutureBlock) || (errors.Is(err, consensus.ErrUnknownAncestor) && bc.futureBlocks.Contains(it.first().ParentHash())):
|
|
for block != nil && (it.index == 0 || errors.Is(err, consensus.ErrUnknownAncestor)) {
|
|
log.Debug("Future block, postponing import", "number", block.Number(), "hash", block.Hash())
|
|
if err := bc.addFutureBlock(block); err != nil {
|
|
return it.index, err
|
|
}
|
|
block, err = it.next()
|
|
}
|
|
stats.queued += it.processed()
|
|
stats.ignored += it.remaining()
|
|
|
|
// If there are any still remaining, mark as ignored
|
|
return it.index, err
|
|
|
|
// Some other error(except ErrKnownBlock) occurred, abort.
|
|
// ErrKnownBlock is allowed here since some known blocks
|
|
// still need re-execution to generate snapshots that are missing
|
|
case err != nil && !errors.Is(err, ErrKnownBlock):
|
|
bc.futureBlocks.Remove(block.Hash())
|
|
stats.ignored += len(it.chain)
|
|
bc.reportBlock(block, nil, err)
|
|
return it.index, err
|
|
}
|
|
// No validation errors for the first block (or chain prefix skipped)
|
|
var activeState *state.StateDB
|
|
defer func() {
|
|
// The chain importer is starting and stopping trie prefetchers. If a bad
|
|
// block or other error is hit however, an early return may not properly
|
|
// terminate the background threads. This defer ensures that we clean up
|
|
// and dangling prefetcher, without deferring each and holding on live refs.
|
|
if activeState != nil {
|
|
activeState.StopPrefetcher()
|
|
}
|
|
}()
|
|
|
|
for ; block != nil && err == nil || errors.Is(err, ErrKnownBlock); block, err = it.next() {
|
|
// If the chain is terminating, stop processing blocks
|
|
if bc.insertStopped() {
|
|
log.Debug("Abort during block processing")
|
|
break
|
|
}
|
|
// If the header is a banned one, straight out abort
|
|
if BadHashes[block.Hash()] {
|
|
bc.reportBlock(block, nil, ErrBannedHash)
|
|
return it.index, ErrBannedHash
|
|
}
|
|
// If the block is known (in the middle of the chain), it's a special case for
|
|
// Clique blocks where they can share state among each other, so importing an
|
|
// older block might complete the state of the subsequent one. In this case,
|
|
// just skip the block (we already validated it once fully (and crashed), since
|
|
// its header and body was already in the database). But if the corresponding
|
|
// snapshot layer is missing, forcibly rerun the execution to build it.
|
|
if bc.skipBlock(err, it) {
|
|
logger := log.Debug
|
|
if bc.chainConfig.Clique == nil {
|
|
logger = log.Warn
|
|
}
|
|
logger("Inserted known block", "number", block.Number(), "hash", block.Hash(),
|
|
"uncles", len(block.Uncles()), "txs", len(block.Transactions()), "gas", block.GasUsed(),
|
|
"root", block.Root())
|
|
|
|
// Special case. Commit the empty receipt slice if we meet the known
|
|
// block in the middle. It can only happen in the clique chain. Whenever
|
|
// we insert blocks via `insertSideChain`, we only commit `td`, `header`
|
|
// and `body` if it's non-existent. Since we don't have receipts without
|
|
// reexecution, so nothing to commit. But if the sidechain will be adopted
|
|
// as the canonical chain eventually, it needs to be reexecuted for missing
|
|
// state, but if it's this special case here(skip reexecution) we will lose
|
|
// the empty receipt entry.
|
|
if len(block.Transactions()) == 0 {
|
|
rawdb.WriteReceipts(bc.db, block.Hash(), block.NumberU64(), nil)
|
|
} else {
|
|
log.Error("Please file an issue, skip known block execution without receipt",
|
|
"hash", block.Hash(), "number", block.NumberU64())
|
|
}
|
|
if err := bc.writeKnownBlock(block); err != nil {
|
|
return it.index, err
|
|
}
|
|
stats.processed++
|
|
|
|
// We can assume that logs are empty here, since the only way for consecutive
|
|
// Clique blocks to have the same state is if there are no transactions.
|
|
lastCanon = block
|
|
continue
|
|
}
|
|
|
|
// Retrieve the parent block and it's state to execute on top
|
|
start := time.Now()
|
|
parent := it.previous()
|
|
if parent == nil {
|
|
parent = bc.GetHeader(block.ParentHash(), block.NumberU64()-1)
|
|
}
|
|
statedb, err := state.New(parent.Root, bc.stateCache, bc.snaps)
|
|
if err != nil {
|
|
return it.index, err
|
|
}
|
|
|
|
// Enable prefetching to pull in trie node paths while processing transactions
|
|
statedb.StartPrefetcher("chain")
|
|
activeState = statedb
|
|
|
|
// If we have a followup block, run that against the current state to pre-cache
|
|
// transactions and probabilistically some of the account/storage trie nodes.
|
|
var followupInterrupt atomic.Bool
|
|
if !bc.cacheConfig.TrieCleanNoPrefetch {
|
|
if followup, err := it.peek(); followup != nil && err == nil {
|
|
throwaway, _ := state.New(parent.Root, bc.stateCache, bc.snaps)
|
|
|
|
go func(start time.Time, followup *types.Block, throwaway *state.StateDB) {
|
|
bc.prefetcher.Prefetch(followup, throwaway, bc.vmConfig, &followupInterrupt)
|
|
|
|
blockPrefetchExecuteTimer.Update(time.Since(start))
|
|
if followupInterrupt.Load() {
|
|
blockPrefetchInterruptMeter.Mark(1)
|
|
}
|
|
}(time.Now(), followup, throwaway)
|
|
}
|
|
}
|
|
|
|
// Process block using the parent state as reference point
|
|
pstart := time.Now()
|
|
receipts, logs, usedGas, err := bc.processor.Process(block, statedb, bc.vmConfig)
|
|
if err != nil {
|
|
bc.reportBlock(block, receipts, err)
|
|
followupInterrupt.Store(true)
|
|
return it.index, err
|
|
}
|
|
ptime := time.Since(pstart)
|
|
|
|
vstart := time.Now()
|
|
if err := bc.validator.ValidateState(block, statedb, receipts, usedGas); err != nil {
|
|
bc.reportBlock(block, receipts, err)
|
|
followupInterrupt.Store(true)
|
|
return it.index, err
|
|
}
|
|
vtime := time.Since(vstart)
|
|
proctime := time.Since(start) // processing + validation
|
|
|
|
// Update the metrics touched during block processing and validation
|
|
accountReadTimer.Update(statedb.AccountReads) // Account reads are complete(in processing)
|
|
storageReadTimer.Update(statedb.StorageReads) // Storage reads are complete(in processing)
|
|
snapshotAccountReadTimer.Update(statedb.SnapshotAccountReads) // Account reads are complete(in processing)
|
|
snapshotStorageReadTimer.Update(statedb.SnapshotStorageReads) // Storage reads are complete(in processing)
|
|
accountUpdateTimer.Update(statedb.AccountUpdates) // Account updates are complete(in validation)
|
|
storageUpdateTimer.Update(statedb.StorageUpdates) // Storage updates are complete(in validation)
|
|
accountHashTimer.Update(statedb.AccountHashes) // Account hashes are complete(in validation)
|
|
storageHashTimer.Update(statedb.StorageHashes) // Storage hashes are complete(in validation)
|
|
triehash := statedb.AccountHashes + statedb.StorageHashes // The time spent on tries hashing
|
|
trieUpdate := statedb.AccountUpdates + statedb.StorageUpdates // The time spent on tries update
|
|
trieRead := statedb.SnapshotAccountReads + statedb.AccountReads // The time spent on account read
|
|
trieRead += statedb.SnapshotStorageReads + statedb.StorageReads // The time spent on storage read
|
|
blockExecutionTimer.Update(ptime - trieRead) // The time spent on EVM processing
|
|
blockValidationTimer.Update(vtime - (triehash + trieUpdate)) // The time spent on block validation
|
|
|
|
// Write the block to the chain and get the status.
|
|
var (
|
|
wstart = time.Now()
|
|
status WriteStatus
|
|
)
|
|
if !setHead {
|
|
// Don't set the head, only insert the block
|
|
err = bc.writeBlockWithState(block, receipts, statedb)
|
|
} else {
|
|
status, err = bc.writeBlockAndSetHead(block, receipts, logs, statedb, false)
|
|
}
|
|
followupInterrupt.Store(true)
|
|
if err != nil {
|
|
return it.index, err
|
|
}
|
|
// Update the metrics touched during block commit
|
|
accountCommitTimer.Update(statedb.AccountCommits) // Account commits are complete, we can mark them
|
|
storageCommitTimer.Update(statedb.StorageCommits) // Storage commits are complete, we can mark them
|
|
snapshotCommitTimer.Update(statedb.SnapshotCommits) // Snapshot commits are complete, we can mark them
|
|
triedbCommitTimer.Update(statedb.TrieDBCommits) // Trie database commits are complete, we can mark them
|
|
|
|
blockWriteTimer.Update(time.Since(wstart) - statedb.AccountCommits - statedb.StorageCommits - statedb.SnapshotCommits - statedb.TrieDBCommits)
|
|
blockInsertTimer.UpdateSince(start)
|
|
|
|
// Report the import stats before returning the various results
|
|
stats.processed++
|
|
stats.usedGas += usedGas
|
|
|
|
var snapDiffItems, snapBufItems common.StorageSize
|
|
if bc.snaps != nil {
|
|
snapDiffItems, snapBufItems = bc.snaps.Size()
|
|
}
|
|
trieDiffNodes, trieBufNodes, _ := bc.triedb.Size()
|
|
stats.report(chain, it.index, snapDiffItems, snapBufItems, trieDiffNodes, trieBufNodes, setHead)
|
|
|
|
if !setHead {
|
|
// After merge we expect few side chains. Simply count
|
|
// all blocks the CL gives us for GC processing time
|
|
bc.gcproc += proctime
|
|
|
|
return it.index, nil // Direct block insertion of a single block
|
|
}
|
|
switch status {
|
|
case CanonStatTy:
|
|
log.Debug("Inserted new block", "number", block.Number(), "hash", block.Hash(),
|
|
"uncles", len(block.Uncles()), "txs", len(block.Transactions()), "gas", block.GasUsed(),
|
|
"elapsed", common.PrettyDuration(time.Since(start)),
|
|
"root", block.Root())
|
|
|
|
lastCanon = block
|
|
|
|
// Only count canonical blocks for GC processing time
|
|
bc.gcproc += proctime
|
|
|
|
case SideStatTy:
|
|
log.Debug("Inserted forked block", "number", block.Number(), "hash", block.Hash(),
|
|
"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(start)),
|
|
"txs", len(block.Transactions()), "gas", block.GasUsed(), "uncles", len(block.Uncles()),
|
|
"root", block.Root())
|
|
|
|
default:
|
|
// This in theory is impossible, but lets be nice to our future selves and leave
|
|
// a log, instead of trying to track down blocks imports that don't emit logs.
|
|
log.Warn("Inserted block with unknown status", "number", block.Number(), "hash", block.Hash(),
|
|
"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(start)),
|
|
"txs", len(block.Transactions()), "gas", block.GasUsed(), "uncles", len(block.Uncles()),
|
|
"root", block.Root())
|
|
}
|
|
}
|
|
|
|
// Any blocks remaining here? The only ones we care about are the future ones
|
|
if block != nil && errors.Is(err, consensus.ErrFutureBlock) {
|
|
if err := bc.addFutureBlock(block); err != nil {
|
|
return it.index, err
|
|
}
|
|
block, err = it.next()
|
|
|
|
for ; block != nil && errors.Is(err, consensus.ErrUnknownAncestor); block, err = it.next() {
|
|
if err := bc.addFutureBlock(block); err != nil {
|
|
return it.index, err
|
|
}
|
|
stats.queued++
|
|
}
|
|
}
|
|
stats.ignored += it.remaining()
|
|
|
|
return it.index, err
|
|
}
|
|
|
|
// insertSideChain is called when an import batch hits upon a pruned ancestor
|
|
// error, which happens when a sidechain with a sufficiently old fork-block is
|
|
// found.
|
|
//
|
|
// The method writes all (header-and-body-valid) blocks to disk, then tries to
|
|
// switch over to the new chain if the TD exceeded the current chain.
|
|
// insertSideChain is only used pre-merge.
|
|
func (bc *BlockChain) insertSideChain(block *types.Block, it *insertIterator) (int, error) {
|
|
var (
|
|
externTd *big.Int
|
|
lastBlock = block
|
|
current = bc.CurrentBlock()
|
|
)
|
|
// The first sidechain block error is already verified to be ErrPrunedAncestor.
|
|
// Since we don't import them here, we expect ErrUnknownAncestor for the remaining
|
|
// ones. Any other errors means that the block is invalid, and should not be written
|
|
// to disk.
|
|
err := consensus.ErrPrunedAncestor
|
|
for ; block != nil && errors.Is(err, consensus.ErrPrunedAncestor); block, err = it.next() {
|
|
// Check the canonical state root for that number
|
|
if number := block.NumberU64(); current.Number.Uint64() >= number {
|
|
canonical := bc.GetBlockByNumber(number)
|
|
if canonical != nil && canonical.Hash() == block.Hash() {
|
|
// Not a sidechain block, this is a re-import of a canon block which has it's state pruned
|
|
|
|
// Collect the TD of the block. Since we know it's a canon one,
|
|
// we can get it directly, and not (like further below) use
|
|
// the parent and then add the block on top
|
|
externTd = bc.GetTd(block.Hash(), block.NumberU64())
|
|
continue
|
|
}
|
|
if canonical != nil && canonical.Root() == block.Root() {
|
|
// This is most likely a shadow-state attack. When a fork is imported into the
|
|
// database, and it eventually reaches a block height which is not pruned, we
|
|
// just found that the state already exist! This means that the sidechain block
|
|
// refers to a state which already exists in our canon chain.
|
|
//
|
|
// If left unchecked, we would now proceed importing the blocks, without actually
|
|
// having verified the state of the previous blocks.
|
|
log.Warn("Sidechain ghost-state attack detected", "number", block.NumberU64(), "sideroot", block.Root(), "canonroot", canonical.Root())
|
|
|
|
// If someone legitimately side-mines blocks, they would still be imported as usual. However,
|
|
// we cannot risk writing unverified blocks to disk when they obviously target the pruning
|
|
// mechanism.
|
|
return it.index, errors.New("sidechain ghost-state attack")
|
|
}
|
|
}
|
|
if externTd == nil {
|
|
externTd = bc.GetTd(block.ParentHash(), block.NumberU64()-1)
|
|
}
|
|
externTd = new(big.Int).Add(externTd, block.Difficulty())
|
|
|
|
if !bc.HasBlock(block.Hash(), block.NumberU64()) {
|
|
start := time.Now()
|
|
if err := bc.writeBlockWithoutState(block, externTd); err != nil {
|
|
return it.index, err
|
|
}
|
|
log.Debug("Injected sidechain block", "number", block.Number(), "hash", block.Hash(),
|
|
"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(start)),
|
|
"txs", len(block.Transactions()), "gas", block.GasUsed(), "uncles", len(block.Uncles()),
|
|
"root", block.Root())
|
|
}
|
|
lastBlock = block
|
|
}
|
|
// At this point, we've written all sidechain blocks to database. Loop ended
|
|
// either on some other error or all were processed. If there was some other
|
|
// error, we can ignore the rest of those blocks.
|
|
//
|
|
// If the externTd was larger than our local TD, we now need to reimport the previous
|
|
// blocks to regenerate the required state
|
|
reorg, err := bc.forker.ReorgNeeded(current, lastBlock.Header())
|
|
if err != nil {
|
|
return it.index, err
|
|
}
|
|
if !reorg {
|
|
localTd := bc.GetTd(current.Hash(), current.Number.Uint64())
|
|
log.Info("Sidechain written to disk", "start", it.first().NumberU64(), "end", it.previous().Number, "sidetd", externTd, "localtd", localTd)
|
|
return it.index, err
|
|
}
|
|
// Gather all the sidechain hashes (full blocks may be memory heavy)
|
|
var (
|
|
hashes []common.Hash
|
|
numbers []uint64
|
|
)
|
|
parent := it.previous()
|
|
for parent != nil && !bc.HasState(parent.Root) {
|
|
if bc.stateRecoverable(parent.Root) {
|
|
if err := bc.triedb.Recover(parent.Root); err != nil {
|
|
return 0, err
|
|
}
|
|
break
|
|
}
|
|
hashes = append(hashes, parent.Hash())
|
|
numbers = append(numbers, parent.Number.Uint64())
|
|
|
|
parent = bc.GetHeader(parent.ParentHash, parent.Number.Uint64()-1)
|
|
}
|
|
if parent == nil {
|
|
return it.index, errors.New("missing parent")
|
|
}
|
|
// Import all the pruned blocks to make the state available
|
|
var (
|
|
blocks []*types.Block
|
|
memory uint64
|
|
)
|
|
for i := len(hashes) - 1; i >= 0; i-- {
|
|
// Append the next block to our batch
|
|
block := bc.GetBlock(hashes[i], numbers[i])
|
|
|
|
blocks = append(blocks, block)
|
|
memory += block.Size()
|
|
|
|
// If memory use grew too large, import and continue. Sadly we need to discard
|
|
// all raised events and logs from notifications since we're too heavy on the
|
|
// memory here.
|
|
if len(blocks) >= 2048 || memory > 64*1024*1024 {
|
|
log.Info("Importing heavy sidechain segment", "blocks", len(blocks), "start", blocks[0].NumberU64(), "end", block.NumberU64())
|
|
if _, err := bc.insertChain(blocks, true); err != nil {
|
|
return 0, err
|
|
}
|
|
blocks, memory = blocks[:0], 0
|
|
|
|
// If the chain is terminating, stop processing blocks
|
|
if bc.insertStopped() {
|
|
log.Debug("Abort during blocks processing")
|
|
return 0, nil
|
|
}
|
|
}
|
|
}
|
|
if len(blocks) > 0 {
|
|
log.Info("Importing sidechain segment", "start", blocks[0].NumberU64(), "end", blocks[len(blocks)-1].NumberU64())
|
|
return bc.insertChain(blocks, true)
|
|
}
|
|
return 0, nil
|
|
}
|
|
|
|
// recoverAncestors finds the closest ancestor with available state and re-execute
|
|
// all the ancestor blocks since that.
|
|
// recoverAncestors is only used post-merge.
|
|
// We return the hash of the latest block that we could correctly validate.
|
|
func (bc *BlockChain) recoverAncestors(block *types.Block) (common.Hash, error) {
|
|
// Gather all the sidechain hashes (full blocks may be memory heavy)
|
|
var (
|
|
hashes []common.Hash
|
|
numbers []uint64
|
|
parent = block
|
|
)
|
|
for parent != nil && !bc.HasState(parent.Root()) {
|
|
if bc.stateRecoverable(parent.Root()) {
|
|
if err := bc.triedb.Recover(parent.Root()); err != nil {
|
|
return common.Hash{}, err
|
|
}
|
|
break
|
|
}
|
|
hashes = append(hashes, parent.Hash())
|
|
numbers = append(numbers, parent.NumberU64())
|
|
parent = bc.GetBlock(parent.ParentHash(), parent.NumberU64()-1)
|
|
|
|
// If the chain is terminating, stop iteration
|
|
if bc.insertStopped() {
|
|
log.Debug("Abort during blocks iteration")
|
|
return common.Hash{}, errInsertionInterrupted
|
|
}
|
|
}
|
|
if parent == nil {
|
|
return common.Hash{}, errors.New("missing parent")
|
|
}
|
|
// Import all the pruned blocks to make the state available
|
|
for i := len(hashes) - 1; i >= 0; i-- {
|
|
// If the chain is terminating, stop processing blocks
|
|
if bc.insertStopped() {
|
|
log.Debug("Abort during blocks processing")
|
|
return common.Hash{}, errInsertionInterrupted
|
|
}
|
|
var b *types.Block
|
|
if i == 0 {
|
|
b = block
|
|
} else {
|
|
b = bc.GetBlock(hashes[i], numbers[i])
|
|
}
|
|
if _, err := bc.insertChain(types.Blocks{b}, false); err != nil {
|
|
return b.ParentHash(), err
|
|
}
|
|
}
|
|
return block.Hash(), nil
|
|
}
|
|
|
|
// collectLogs collects the logs that were generated or removed during
|
|
// the processing of a block. These logs are later announced as deleted or reborn.
|
|
func (bc *BlockChain) collectLogs(b *types.Block, removed bool) []*types.Log {
|
|
var blobGasPrice *big.Int
|
|
excessBlobGas := b.ExcessBlobGas()
|
|
if excessBlobGas != nil {
|
|
blobGasPrice = eip4844.CalcBlobFee(*excessBlobGas)
|
|
}
|
|
receipts := rawdb.ReadRawReceipts(bc.db, b.Hash(), b.NumberU64())
|
|
if err := receipts.DeriveFields(bc.chainConfig, b.Hash(), b.NumberU64(), b.Time(), b.BaseFee(), blobGasPrice, b.Transactions()); err != nil {
|
|
log.Error("Failed to derive block receipts fields", "hash", b.Hash(), "number", b.NumberU64(), "err", err)
|
|
}
|
|
var logs []*types.Log
|
|
for _, receipt := range receipts {
|
|
for _, log := range receipt.Logs {
|
|
if removed {
|
|
log.Removed = true
|
|
}
|
|
logs = append(logs, log)
|
|
}
|
|
}
|
|
return logs
|
|
}
|
|
|
|
// reorg takes two blocks, an old chain and a new chain and will reconstruct the
|
|
// blocks and inserts them to be part of the new canonical chain and accumulates
|
|
// potential missing transactions and post an event about them.
|
|
// Note the new head block won't be processed here, callers need to handle it
|
|
// externally.
|
|
func (bc *BlockChain) reorg(oldHead *types.Header, newHead *types.Block) error {
|
|
var (
|
|
newChain types.Blocks
|
|
oldChain types.Blocks
|
|
commonBlock *types.Block
|
|
|
|
deletedTxs []common.Hash
|
|
addedTxs []common.Hash
|
|
)
|
|
oldBlock := bc.GetBlock(oldHead.Hash(), oldHead.Number.Uint64())
|
|
if oldBlock == nil {
|
|
return errors.New("current head block missing")
|
|
}
|
|
newBlock := newHead
|
|
|
|
// Reduce the longer chain to the same number as the shorter one
|
|
if oldBlock.NumberU64() > newBlock.NumberU64() {
|
|
// Old chain is longer, gather all transactions and logs as deleted ones
|
|
for ; oldBlock != nil && oldBlock.NumberU64() != newBlock.NumberU64(); oldBlock = bc.GetBlock(oldBlock.ParentHash(), oldBlock.NumberU64()-1) {
|
|
oldChain = append(oldChain, oldBlock)
|
|
for _, tx := range oldBlock.Transactions() {
|
|
deletedTxs = append(deletedTxs, tx.Hash())
|
|
}
|
|
}
|
|
} else {
|
|
// New chain is longer, stash all blocks away for subsequent insertion
|
|
for ; newBlock != nil && newBlock.NumberU64() != oldBlock.NumberU64(); newBlock = bc.GetBlock(newBlock.ParentHash(), newBlock.NumberU64()-1) {
|
|
newChain = append(newChain, newBlock)
|
|
}
|
|
}
|
|
if oldBlock == nil {
|
|
return errInvalidOldChain
|
|
}
|
|
if newBlock == nil {
|
|
return errInvalidNewChain
|
|
}
|
|
// Both sides of the reorg are at the same number, reduce both until the common
|
|
// ancestor is found
|
|
for {
|
|
// If the common ancestor was found, bail out
|
|
if oldBlock.Hash() == newBlock.Hash() {
|
|
commonBlock = oldBlock
|
|
break
|
|
}
|
|
// Remove an old block as well as stash away a new block
|
|
oldChain = append(oldChain, oldBlock)
|
|
for _, tx := range oldBlock.Transactions() {
|
|
deletedTxs = append(deletedTxs, tx.Hash())
|
|
}
|
|
newChain = append(newChain, newBlock)
|
|
|
|
// Step back with both chains
|
|
oldBlock = bc.GetBlock(oldBlock.ParentHash(), oldBlock.NumberU64()-1)
|
|
if oldBlock == nil {
|
|
return errInvalidOldChain
|
|
}
|
|
newBlock = bc.GetBlock(newBlock.ParentHash(), newBlock.NumberU64()-1)
|
|
if newBlock == nil {
|
|
return errInvalidNewChain
|
|
}
|
|
}
|
|
|
|
// Ensure the user sees large reorgs
|
|
if len(oldChain) > 0 && len(newChain) > 0 {
|
|
logFn := log.Info
|
|
msg := "Chain reorg detected"
|
|
if len(oldChain) > 63 {
|
|
msg = "Large chain reorg detected"
|
|
logFn = log.Warn
|
|
}
|
|
//begin PluGeth code injection
|
|
pluginReorg(commonBlock, oldChain, newChain)
|
|
//end PluGeth code injection
|
|
logFn(msg, "number", commonBlock.Number(), "hash", commonBlock.Hash(),
|
|
"drop", len(oldChain), "dropfrom", oldChain[0].Hash(), "add", len(newChain), "addfrom", newChain[0].Hash())
|
|
blockReorgAddMeter.Mark(int64(len(newChain)))
|
|
blockReorgDropMeter.Mark(int64(len(oldChain)))
|
|
blockReorgMeter.Mark(1)
|
|
} else if len(newChain) > 0 {
|
|
// Special case happens in the post merge stage that current head is
|
|
// the ancestor of new head while these two blocks are not consecutive
|
|
log.Info("Extend chain", "add", len(newChain), "number", newChain[0].Number(), "hash", newChain[0].Hash())
|
|
blockReorgAddMeter.Mark(int64(len(newChain)))
|
|
} else {
|
|
// len(newChain) == 0 && len(oldChain) > 0
|
|
// rewind the canonical chain to a lower point.
|
|
log.Error("Impossible reorg, please file an issue", "oldnum", oldBlock.Number(), "oldhash", oldBlock.Hash(), "oldblocks", len(oldChain), "newnum", newBlock.Number(), "newhash", newBlock.Hash(), "newblocks", len(newChain))
|
|
}
|
|
// Reset the tx lookup cache in case to clear stale txlookups.
|
|
// This is done before writing any new chain data to avoid the
|
|
// weird scenario that canonical chain is changed while the
|
|
// stale lookups are still cached.
|
|
bc.txLookupCache.Purge()
|
|
|
|
// Insert the new chain(except the head block(reverse order)),
|
|
// taking care of the proper incremental order.
|
|
for i := len(newChain) - 1; i >= 1; i-- {
|
|
// Insert the block in the canonical way, re-writing history
|
|
bc.writeHeadBlock(newChain[i])
|
|
|
|
// Collect the new added transactions.
|
|
for _, tx := range newChain[i].Transactions() {
|
|
addedTxs = append(addedTxs, tx.Hash())
|
|
}
|
|
}
|
|
|
|
// Delete useless indexes right now which includes the non-canonical
|
|
// transaction indexes, canonical chain indexes which above the head.
|
|
var (
|
|
indexesBatch = bc.db.NewBatch()
|
|
diffs = types.HashDifference(deletedTxs, addedTxs)
|
|
)
|
|
for _, tx := range diffs {
|
|
rawdb.DeleteTxLookupEntry(indexesBatch, tx)
|
|
}
|
|
// Delete all hash markers that are not part of the new canonical chain.
|
|
// Because the reorg function does not handle new chain head, all hash
|
|
// markers greater than or equal to new chain head should be deleted.
|
|
number := commonBlock.NumberU64()
|
|
if len(newChain) > 1 {
|
|
number = newChain[1].NumberU64()
|
|
}
|
|
for i := number + 1; ; i++ {
|
|
hash := rawdb.ReadCanonicalHash(bc.db, i)
|
|
if hash == (common.Hash{}) {
|
|
break
|
|
}
|
|
rawdb.DeleteCanonicalHash(indexesBatch, i)
|
|
}
|
|
if err := indexesBatch.Write(); err != nil {
|
|
log.Crit("Failed to delete useless indexes", "err", err)
|
|
}
|
|
|
|
// Send out events for logs from the old canon chain, and 'reborn'
|
|
// logs from the new canon chain. The number of logs can be very
|
|
// high, so the events are sent in batches of size around 512.
|
|
|
|
// Deleted logs + blocks:
|
|
var deletedLogs []*types.Log
|
|
for i := len(oldChain) - 1; i >= 0; i-- {
|
|
// Also send event for blocks removed from the canon chain.
|
|
bc.chainSideFeed.Send(ChainSideEvent{Block: oldChain[i]})
|
|
|
|
// Collect deleted logs for notification
|
|
if logs := bc.collectLogs(oldChain[i], true); len(logs) > 0 {
|
|
deletedLogs = append(deletedLogs, logs...)
|
|
}
|
|
if len(deletedLogs) > 512 {
|
|
bc.rmLogsFeed.Send(RemovedLogsEvent{deletedLogs})
|
|
deletedLogs = nil
|
|
}
|
|
}
|
|
if len(deletedLogs) > 0 {
|
|
bc.rmLogsFeed.Send(RemovedLogsEvent{deletedLogs})
|
|
}
|
|
|
|
// New logs:
|
|
var rebirthLogs []*types.Log
|
|
for i := len(newChain) - 1; i >= 1; i-- {
|
|
if logs := bc.collectLogs(newChain[i], false); len(logs) > 0 {
|
|
rebirthLogs = append(rebirthLogs, logs...)
|
|
}
|
|
if len(rebirthLogs) > 512 {
|
|
bc.logsFeed.Send(rebirthLogs)
|
|
rebirthLogs = nil
|
|
}
|
|
}
|
|
if len(rebirthLogs) > 0 {
|
|
bc.logsFeed.Send(rebirthLogs)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// InsertBlockWithoutSetHead executes the block, runs the necessary verification
|
|
// upon it and then persist the block and the associate state into the database.
|
|
// The key difference between the InsertChain is it won't do the canonical chain
|
|
// updating. It relies on the additional SetCanonical call to finalize the entire
|
|
// procedure.
|
|
func (bc *BlockChain) InsertBlockWithoutSetHead(block *types.Block) error {
|
|
if !bc.chainmu.TryLock() {
|
|
return errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
_, err := bc.insertChain(types.Blocks{block}, false)
|
|
return err
|
|
}
|
|
|
|
// SetCanonical rewinds the chain to set the new head block as the specified
|
|
// block. It's possible that the state of the new head is missing, and it will
|
|
// be recovered in this function as well.
|
|
func (bc *BlockChain) SetCanonical(head *types.Block) (common.Hash, error) {
|
|
if !bc.chainmu.TryLock() {
|
|
return common.Hash{}, errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
|
|
// Re-execute the reorged chain in case the head state is missing.
|
|
if !bc.HasState(head.Root()) {
|
|
if latestValidHash, err := bc.recoverAncestors(head); err != nil {
|
|
return latestValidHash, err
|
|
}
|
|
log.Info("Recovered head state", "number", head.Number(), "hash", head.Hash())
|
|
}
|
|
// Run the reorg if necessary and set the given block as new head.
|
|
start := time.Now()
|
|
if head.ParentHash() != bc.CurrentBlock().Hash() {
|
|
if err := bc.reorg(bc.CurrentBlock(), head); err != nil {
|
|
return common.Hash{}, err
|
|
}
|
|
}
|
|
bc.writeHeadBlock(head)
|
|
|
|
// Emit events
|
|
logs := bc.collectLogs(head, false)
|
|
bc.chainFeed.Send(ChainEvent{Block: head, Hash: head.Hash(), Logs: logs})
|
|
if len(logs) > 0 {
|
|
bc.logsFeed.Send(logs)
|
|
}
|
|
// begin PluGeth code injection
|
|
ptd := bc.GetTd(head.ParentHash(), head.NumberU64()-1)
|
|
externTd := ptd
|
|
if ptd != nil {
|
|
externTd = new(big.Int).Add(head.Difficulty(), ptd)
|
|
}
|
|
pluginNewHead(head, head.Hash(), logs, externTd)
|
|
// end PluGeth code injection
|
|
bc.chainHeadFeed.Send(ChainHeadEvent{Block: head})
|
|
|
|
context := []interface{}{
|
|
"number", head.Number(),
|
|
"hash", head.Hash(),
|
|
"root", head.Root(),
|
|
"elapsed", time.Since(start),
|
|
}
|
|
if timestamp := time.Unix(int64(head.Time()), 0); time.Since(timestamp) > time.Minute {
|
|
context = append(context, []interface{}{"age", common.PrettyAge(timestamp)}...)
|
|
}
|
|
log.Info("Chain head was updated", context...)
|
|
return head.Hash(), nil
|
|
}
|
|
|
|
func (bc *BlockChain) updateFutureBlocks() {
|
|
futureTimer := time.NewTicker(5 * time.Second)
|
|
defer futureTimer.Stop()
|
|
defer bc.wg.Done()
|
|
for {
|
|
select {
|
|
case <-futureTimer.C:
|
|
bc.procFutureBlocks()
|
|
case <-bc.quit:
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// skipBlock returns 'true', if the block being imported can be skipped over, meaning
|
|
// that the block does not need to be processed but can be considered already fully 'done'.
|
|
func (bc *BlockChain) skipBlock(err error, it *insertIterator) bool {
|
|
// We can only ever bypass processing if the only error returned by the validator
|
|
// is ErrKnownBlock, which means all checks passed, but we already have the block
|
|
// and state.
|
|
if !errors.Is(err, ErrKnownBlock) {
|
|
return false
|
|
}
|
|
// If we're not using snapshots, we can skip this, since we have both block
|
|
// and (trie-) state
|
|
if bc.snaps == nil {
|
|
return true
|
|
}
|
|
var (
|
|
header = it.current() // header can't be nil
|
|
parentRoot common.Hash
|
|
)
|
|
// If we also have the snapshot-state, we can skip the processing.
|
|
if bc.snaps.Snapshot(header.Root) != nil {
|
|
return true
|
|
}
|
|
// In this case, we have the trie-state but not snapshot-state. If the parent
|
|
// snapshot-state exists, we need to process this in order to not get a gap
|
|
// in the snapshot layers.
|
|
// Resolve parent block
|
|
if parent := it.previous(); parent != nil {
|
|
parentRoot = parent.Root
|
|
} else if parent = bc.GetHeaderByHash(header.ParentHash); parent != nil {
|
|
parentRoot = parent.Root
|
|
}
|
|
if parentRoot == (common.Hash{}) {
|
|
return false // Theoretically impossible case
|
|
}
|
|
// Parent is also missing snapshot: we can skip this. Otherwise process.
|
|
if bc.snaps.Snapshot(parentRoot) == nil {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// reportBlock logs a bad block error.
|
|
func (bc *BlockChain) reportBlock(block *types.Block, receipts types.Receipts, err error) {
|
|
rawdb.WriteBadBlock(bc.db, block)
|
|
log.Error(summarizeBadBlock(block, receipts, bc.Config(), err))
|
|
}
|
|
|
|
// summarizeBadBlock returns a string summarizing the bad block and other
|
|
// relevant information.
|
|
func summarizeBadBlock(block *types.Block, receipts []*types.Receipt, config *params.ChainConfig, err error) string {
|
|
var receiptString string
|
|
for i, receipt := range receipts {
|
|
receiptString += fmt.Sprintf("\n %d: cumulative: %v gas: %v contract: %v status: %v tx: %v logs: %v bloom: %x state: %x",
|
|
i, receipt.CumulativeGasUsed, receipt.GasUsed, receipt.ContractAddress.Hex(),
|
|
receipt.Status, receipt.TxHash.Hex(), receipt.Logs, receipt.Bloom, receipt.PostState)
|
|
}
|
|
version, vcs := version.Info()
|
|
platform := fmt.Sprintf("%s %s %s %s", version, runtime.Version(), runtime.GOARCH, runtime.GOOS)
|
|
if vcs != "" {
|
|
vcs = fmt.Sprintf("\nVCS: %s", vcs)
|
|
}
|
|
return fmt.Sprintf(`
|
|
########## BAD BLOCK #########
|
|
Block: %v (%#x)
|
|
Error: %v
|
|
Platform: %v%v
|
|
Chain config: %#v
|
|
Receipts: %v
|
|
##############################
|
|
`, block.Number(), block.Hash(), err, platform, vcs, config, receiptString)
|
|
}
|
|
|
|
// InsertHeaderChain attempts to insert the given header chain in to the local
|
|
// chain, possibly creating a reorg. If an error is returned, it will return the
|
|
// index number of the failing header as well an error describing what went wrong.
|
|
func (bc *BlockChain) InsertHeaderChain(chain []*types.Header) (int, error) {
|
|
if len(chain) == 0 {
|
|
return 0, nil
|
|
}
|
|
start := time.Now()
|
|
if i, err := bc.hc.ValidateHeaderChain(chain); err != nil {
|
|
return i, err
|
|
}
|
|
|
|
if !bc.chainmu.TryLock() {
|
|
return 0, errChainStopped
|
|
}
|
|
defer bc.chainmu.Unlock()
|
|
_, err := bc.hc.InsertHeaderChain(chain, start, bc.forker)
|
|
return 0, err
|
|
}
|
|
|
|
// SetBlockValidatorAndProcessorForTesting sets the current validator and processor.
|
|
// This method can be used to force an invalid blockchain to be verified for tests.
|
|
// This method is unsafe and should only be used before block import starts.
|
|
func (bc *BlockChain) SetBlockValidatorAndProcessorForTesting(v Validator, p Processor) {
|
|
bc.validator = v
|
|
bc.processor = p
|
|
}
|
|
|
|
// SetTrieFlushInterval configures how often in-memory tries are persisted to disk.
|
|
// The interval is in terms of block processing time, not wall clock.
|
|
// It is thread-safe and can be called repeatedly without side effects.
|
|
func (bc *BlockChain) SetTrieFlushInterval(interval time.Duration) {
|
|
bc.flushInterval.Store(int64(interval))
|
|
}
|
|
|
|
// GetTrieFlushInterval gets the in-memory tries flushAlloc interval
|
|
func (bc *BlockChain) GetTrieFlushInterval() time.Duration {
|
|
return time.Duration(bc.flushInterval.Load())
|
|
}
|