/
db_manager.go
3044 lines (2613 loc) · 95.6 KB
/
db_manager.go
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// Copyright 2018 The klaytn Authors
// This file is part of the klaytn library.
//
// The klaytn library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The klaytn library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the klaytn library. If not, see <http://www.gnu.org/licenses/>.
package database
import (
"bytes"
"encoding/binary"
"encoding/json"
"fmt"
"math/big"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"sync"
"github.com/dgraph-io/badger"
"github.com/klaytn/klaytn/blockchain/types"
"github.com/klaytn/klaytn/common"
"github.com/klaytn/klaytn/log"
"github.com/klaytn/klaytn/params"
"github.com/klaytn/klaytn/rlp"
"github.com/pkg/errors"
"github.com/syndtr/goleveldb/leveldb"
)
var (
logger = log.NewModuleLogger(log.StorageDatabase)
errGovIdxAlreadyExist = errors.New("a governance idx of the more recent or the same block exist")
HeadBlockQ backupHashQueue
FastBlockQ backupHashQueue
)
type DBManager interface {
IsParallelDBWrite() bool
IsSingle() bool
InMigration() bool
MigrationBlockNumber() uint64
getStateTrieMigrationInfo() uint64
Close()
NewBatch(dbType DBEntryType) Batch
getDBDir(dbEntry DBEntryType) string
setDBDir(dbEntry DBEntryType, newDBDir string)
setStateTrieMigrationStatus(uint64)
GetMemDB() *MemDB
GetDBConfig() *DBConfig
getDatabase(DBEntryType) Database
CreateMigrationDBAndSetStatus(blockNum uint64) error
FinishStateMigration(succeed bool) chan struct{}
GetStateTrieDB() Database
GetStateTrieMigrationDB() Database
GetMiscDB() Database
GetSnapshotDB() Database
// from accessors_chain.go
ReadCanonicalHash(number uint64) common.Hash
WriteCanonicalHash(hash common.Hash, number uint64)
DeleteCanonicalHash(number uint64)
ReadHeadHeaderHash() common.Hash
WriteHeadHeaderHash(hash common.Hash)
ReadHeadBlockHash() common.Hash
ReadHeadBlockBackupHash() common.Hash
WriteHeadBlockHash(hash common.Hash)
ReadHeadFastBlockHash() common.Hash
ReadHeadFastBlockBackupHash() common.Hash
WriteHeadFastBlockHash(hash common.Hash)
ReadFastTrieProgress() uint64
WriteFastTrieProgress(count uint64)
HasHeader(hash common.Hash, number uint64) bool
ReadHeader(hash common.Hash, number uint64) *types.Header
ReadHeaderRLP(hash common.Hash, number uint64) rlp.RawValue
WriteHeader(header *types.Header)
DeleteHeader(hash common.Hash, number uint64)
ReadHeaderNumber(hash common.Hash) *uint64
HasBody(hash common.Hash, number uint64) bool
ReadBody(hash common.Hash, number uint64) *types.Body
ReadBodyInCache(hash common.Hash) *types.Body
ReadBodyRLP(hash common.Hash, number uint64) rlp.RawValue
ReadBodyRLPByHash(hash common.Hash) rlp.RawValue
WriteBody(hash common.Hash, number uint64, body *types.Body)
PutBodyToBatch(batch Batch, hash common.Hash, number uint64, body *types.Body)
WriteBodyRLP(hash common.Hash, number uint64, rlp rlp.RawValue)
DeleteBody(hash common.Hash, number uint64)
ReadTd(hash common.Hash, number uint64) *big.Int
WriteTd(hash common.Hash, number uint64, td *big.Int)
DeleteTd(hash common.Hash, number uint64)
ReadReceipt(txHash common.Hash) (*types.Receipt, common.Hash, uint64, uint64)
ReadReceipts(blockHash common.Hash, number uint64) types.Receipts
ReadReceiptsByBlockHash(hash common.Hash) types.Receipts
WriteReceipts(hash common.Hash, number uint64, receipts types.Receipts)
PutReceiptsToBatch(batch Batch, hash common.Hash, number uint64, receipts types.Receipts)
DeleteReceipts(hash common.Hash, number uint64)
ReadBlock(hash common.Hash, number uint64) *types.Block
ReadBlockByHash(hash common.Hash) *types.Block
ReadBlockByNumber(number uint64) *types.Block
HasBlock(hash common.Hash, number uint64) bool
WriteBlock(block *types.Block)
DeleteBlock(hash common.Hash, number uint64)
ReadBadBlock(hash common.Hash) *types.Block
WriteBadBlock(block *types.Block)
ReadAllBadBlocks() ([]*types.Block, error)
DeleteBadBlocks()
FindCommonAncestor(a, b *types.Header) *types.Header
ReadIstanbulSnapshot(hash common.Hash) ([]byte, error)
WriteIstanbulSnapshot(hash common.Hash, blob []byte) error
DeleteIstanbulSnapshot(hash common.Hash)
WriteMerkleProof(key, value []byte)
// Bytecodes related operations
ReadCode(hash common.Hash) []byte
ReadCodeWithPrefix(hash common.Hash) []byte
WriteCode(hash common.Hash, code []byte)
PutCodeToBatch(batch Batch, hash common.Hash, code []byte)
DeleteCode(hash common.Hash)
HasCode(hash common.Hash) bool
// State Trie Database related operations
ReadTrieNode(hash common.ExtHash) ([]byte, error)
HasTrieNode(hash common.ExtHash) (bool, error)
HasCodeWithPrefix(hash common.Hash) bool
ReadPreimage(hash common.Hash) []byte
// Read StateTrie from new DB
ReadTrieNodeFromNew(hash common.ExtHash) ([]byte, error)
HasTrieNodeFromNew(hash common.ExtHash) (bool, error)
HasCodeWithPrefixFromNew(hash common.Hash) bool
ReadPreimageFromNew(hash common.Hash) []byte
// Read StateTrie from old DB
ReadTrieNodeFromOld(hash common.ExtHash) ([]byte, error)
HasTrieNodeFromOld(hash common.ExtHash) (bool, error)
HasCodeWithPrefixFromOld(hash common.Hash) bool
ReadPreimageFromOld(hash common.Hash) []byte
// Write StateTrie
WriteTrieNode(hash common.ExtHash, node []byte)
PutTrieNodeToBatch(batch Batch, hash common.ExtHash, node []byte)
DeleteTrieNode(hash common.ExtHash)
WritePreimages(number uint64, preimages map[common.Hash][]byte)
// Trie pruning
ReadPruningEnabled() bool
WritePruningEnabled()
DeletePruningEnabled()
WritePruningMarks(marks []PruningMark)
ReadPruningMarks(startNumber, endNumber uint64) []PruningMark
DeletePruningMarks(marks []PruningMark)
PruneTrieNodes(marks []PruningMark)
WriteLastPrunedBlockNumber(blockNumber uint64)
ReadLastPrunedBlockNumber() (uint64, error)
// from accessors_indexes.go
ReadTxLookupEntry(hash common.Hash) (common.Hash, uint64, uint64)
WriteTxLookupEntries(block *types.Block)
WriteAndCacheTxLookupEntries(block *types.Block) error
PutTxLookupEntriesToBatch(batch Batch, block *types.Block)
DeleteTxLookupEntry(hash common.Hash)
ReadTxAndLookupInfo(hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64)
NewSenderTxHashToTxHashBatch() Batch
PutSenderTxHashToTxHashToBatch(batch Batch, senderTxHash, txHash common.Hash) error
ReadTxHashFromSenderTxHash(senderTxHash common.Hash) common.Hash
ReadBloomBits(bloomBitsKey []byte) ([]byte, error)
WriteBloomBits(bloomBitsKey []byte, bits []byte) error
ReadValidSections() ([]byte, error)
WriteValidSections(encodedSections []byte)
ReadSectionHead(encodedSection []byte) ([]byte, error)
WriteSectionHead(encodedSection []byte, hash common.Hash)
DeleteSectionHead(encodedSection []byte)
// from accessors_metadata.go
ReadDatabaseVersion() *uint64
WriteDatabaseVersion(version uint64)
ReadChainConfig(hash common.Hash) *params.ChainConfig
WriteChainConfig(hash common.Hash, cfg *params.ChainConfig)
// from accessors_snapshot.go
ReadSnapshotJournal() []byte
WriteSnapshotJournal(journal []byte)
DeleteSnapshotJournal()
ReadSnapshotGenerator() []byte
WriteSnapshotGenerator(generator []byte)
DeleteSnapshotGenerator()
ReadSnapshotDisabled() bool
WriteSnapshotDisabled()
DeleteSnapshotDisabled()
ReadSnapshotRecoveryNumber() *uint64
WriteSnapshotRecoveryNumber(number uint64)
DeleteSnapshotRecoveryNumber()
ReadSnapshotSyncStatus() []byte
WriteSnapshotSyncStatus(status []byte)
DeleteSnapshotSyncStatus()
ReadSnapshotRoot() common.Hash
WriteSnapshotRoot(root common.Hash)
DeleteSnapshotRoot()
ReadAccountSnapshot(hash common.Hash) []byte
WriteAccountSnapshot(hash common.Hash, entry []byte)
DeleteAccountSnapshot(hash common.Hash)
ReadStorageSnapshot(accountHash, storageHash common.Hash) []byte
WriteStorageSnapshot(accountHash, storageHash common.Hash, entry []byte)
DeleteStorageSnapshot(accountHash, storageHash common.Hash)
NewSnapshotDBIterator(prefix []byte, start []byte) Iterator
NewSnapshotDBBatch() SnapshotDBBatch
// below operations are used in parent chain side, not child chain side.
WriteChildChainTxHash(ccBlockHash common.Hash, ccTxHash common.Hash)
ConvertChildChainBlockHashToParentChainTxHash(scBlockHash common.Hash) common.Hash
WriteLastIndexedBlockNumber(blockNum uint64)
GetLastIndexedBlockNumber() uint64
// below operations are used in child chain side, not parent chain side.
WriteAnchoredBlockNumber(blockNum uint64)
ReadAnchoredBlockNumber() uint64
WriteReceiptFromParentChain(blockHash common.Hash, receipt *types.Receipt)
ReadReceiptFromParentChain(blockHash common.Hash) *types.Receipt
WriteHandleTxHashFromRequestTxHash(rTx, hTx common.Hash)
ReadHandleTxHashFromRequestTxHash(rTx common.Hash) common.Hash
WriteParentOperatorFeePayer(feePayer common.Address)
WriteChildOperatorFeePayer(feePayer common.Address)
ReadParentOperatorFeePayer() common.Address
ReadChildOperatorFeePayer() common.Address
// cacheManager related functions.
ClearHeaderChainCache()
ClearBlockChainCache()
ReadTxAndLookupInfoInCache(hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64)
ReadBlockReceiptsInCache(blockHash common.Hash) types.Receipts
ReadTxReceiptInCache(txHash common.Hash) *types.Receipt
// snapshot in clique(ConsensusClique) consensus
WriteCliqueSnapshot(snapshotBlockHash common.Hash, encodedSnapshot []byte) error
ReadCliqueSnapshot(snapshotBlockHash common.Hash) ([]byte, error)
// Governance related functions
WriteGovernance(data map[string]interface{}, num uint64) error
WriteGovernanceIdx(num uint64) error
ReadGovernance(num uint64) (map[string]interface{}, error)
ReadRecentGovernanceIdx(count int) ([]uint64, error)
ReadGovernanceAtNumber(num uint64, epoch uint64) (uint64, map[string]interface{}, error)
WriteGovernanceState(b []byte) error
ReadGovernanceState() ([]byte, error)
DeleteGovernance(num uint64)
// TODO-Klaytn implement governance DB deletion methods.
// StakingInfo related functions
ReadStakingInfo(blockNum uint64) ([]byte, error)
WriteStakingInfo(blockNum uint64, stakingInfo []byte) error
HasStakingInfo(blockNum uint64) (bool, error)
DeleteStakingInfo(blockNum uint64)
// DB migration related function
StartDBMigration(DBManager) error
// ChainDataFetcher checkpoint function
WriteChainDataFetcherCheckpoint(checkpoint uint64) error
ReadChainDataFetcherCheckpoint() (uint64, error)
TryCatchUpWithPrimary() error
Stat(string) (string, error)
Compact([]byte, []byte) error
}
type DBEntryType uint8
const (
MiscDB DBEntryType = iota // Do not move MiscDB which has the path of others DB.
headerDB
BodyDB
ReceiptsDB
StateTrieDB
StateTrieMigrationDB
TxLookUpEntryDB
bridgeServiceDB
SnapshotDB
// databaseEntryTypeSize should be the last item in this list!!
databaseEntryTypeSize
)
type backupHashQueue struct {
backupHashes [backupHashCnt]common.Hash
idx int
}
func (b *backupHashQueue) push(h common.Hash) {
b.backupHashes[b.idx%backupHashCnt] = h
b.idx = (b.idx + 1) % backupHashCnt
}
func (b *backupHashQueue) pop() common.Hash {
if b.backupHashes[b.idx] == (common.Hash{}) {
return common.Hash{}
}
return b.backupHashes[b.idx]
}
func (et DBEntryType) String() string {
return dbBaseDirs[et]
}
const (
notInMigrationFlag = 0
inMigrationFlag = 1
backupHashCnt = 128
)
var dbBaseDirs = [databaseEntryTypeSize]string{
"misc", // do not move misc
"header",
"body",
"receipts",
"statetrie",
"statetrie_migrated", // "statetrie_migrated_#N" path will be used. (#N is a migrated block number.)
"txlookup",
"bridgeservice",
"snapshot",
}
// Sum of dbConfigRatio should be 100.
// Otherwise, logger.Crit will be called at checkDBEntryConfigRatio.
var dbConfigRatio = [databaseEntryTypeSize]int{
2, // MiscDB
5, // headerDB
5, // BodyDB
5, // ReceiptsDB
40, // StateTrieDB
37, // StateTrieMigrationDB
2, // TXLookUpEntryDB
1, // bridgeServiceDB
3, // SnapshotDB
}
// checkDBEntryConfigRatio checks if sum of dbConfigRatio is 100.
// If it isn't, logger.Crit is called.
func checkDBEntryConfigRatio() {
entryConfigRatioSum := 0
for i := 0; i < int(databaseEntryTypeSize); i++ {
entryConfigRatioSum += dbConfigRatio[i]
}
if entryConfigRatioSum != 100 {
logger.Crit("Sum of dbConfigRatio elements should be 100", "actual", entryConfigRatioSum)
}
}
// getDBEntryConfig returns a new DBConfig with original DBConfig, DBEntryType and dbDir.
// It adjusts configuration according to the ratio specified in dbConfigRatio and dbDirs.
func getDBEntryConfig(originalDBC *DBConfig, i DBEntryType, dbDir string) *DBConfig {
newDBC := *originalDBC
ratio := dbConfigRatio[i]
newDBC.LevelDBCacheSize = originalDBC.LevelDBCacheSize * ratio / 100
newDBC.OpenFilesLimit = originalDBC.OpenFilesLimit * ratio / 100
// Update dir to each Database specific directory.
newDBC.Dir = filepath.Join(originalDBC.Dir, dbDir)
// Update dynmao table name to Database specific name.
if newDBC.DynamoDBConfig != nil {
newDynamoDBConfig := *originalDBC.DynamoDBConfig
newDynamoDBConfig.TableName += "-" + dbDir
newDBC.DynamoDBConfig = &newDynamoDBConfig
}
if newDBC.RocksDBConfig != nil {
newRocksDBConfig := *originalDBC.RocksDBConfig
newRocksDBConfig.CacheSize = originalDBC.RocksDBConfig.CacheSize * uint64(ratio) / 100
newRocksDBConfig.MaxOpenFiles = originalDBC.RocksDBConfig.MaxOpenFiles * ratio / 100
newDBC.RocksDBConfig = &newRocksDBConfig
}
return &newDBC
}
type databaseManager struct {
config *DBConfig
dbs []Database
cm *cacheManager
// TODO-Klaytn need to refine below.
// -merge status variable
lockInMigration sync.RWMutex
inMigration bool
migrationBlockNumber uint64
}
func NewMemoryDBManager() DBManager {
dbc := &DBConfig{DBType: MemoryDB}
dbm := databaseManager{
config: dbc,
dbs: make([]Database, 1, 1),
cm: newCacheManager(),
}
dbm.dbs[0] = NewMemDB()
return &dbm
}
// DBConfig handles database related configurations.
type DBConfig struct {
// General configurations for all types of DB.
Dir string
DBType DBType
SingleDB bool // whether dbs (such as MiscDB, headerDB and etc) share one physical DB
NumStateTrieShards uint // the number of shards of state trie db
ParallelDBWrite bool
OpenFilesLimit int
EnableDBPerfMetrics bool // If true, read and write performance will be logged
// LevelDB related configurations.
LevelDBCacheSize int // LevelDBCacheSize = BlockCacheCapacity + WriteBuffer
LevelDBCompression LevelDBCompressionType
LevelDBBufferPool bool
// RocksDB related configurations
RocksDBConfig *RocksDBConfig
// DynamoDB related configurations
DynamoDBConfig *DynamoDBConfig
}
const dbMetricPrefix = "klay/db/chaindata/"
// singleDatabaseDBManager returns DBManager which handles one single Database.
// Each Database will share one common Database.
func singleDatabaseDBManager(dbc *DBConfig) (DBManager, error) {
dbm := newDatabaseManager(dbc)
db, err := newDatabase(dbc, 0)
if err != nil {
return nil, err
}
db.Meter(dbMetricPrefix)
for i := 0; i < int(databaseEntryTypeSize); i++ {
dbm.dbs[i] = db
}
return dbm, nil
}
// newMiscDB returns misc DBManager. If not exist, the function create DB before returning.
func newMiscDB(dbc *DBConfig) Database {
newDBC := getDBEntryConfig(dbc, MiscDB, dbBaseDirs[MiscDB])
db, err := newDatabase(newDBC, MiscDB)
if err != nil {
logger.Crit("Failed while generating a MISC database", "err", err)
}
db.Meter(dbMetricPrefix + dbBaseDirs[MiscDB] + "/")
return db
}
// databaseDBManager returns DBManager which handles Databases.
// Each Database will have its own separated Database.
func databaseDBManager(dbc *DBConfig) (*databaseManager, error) {
dbm := newDatabaseManager(dbc)
var db Database
var err error
// Create Misc DB first to get the DB directory of stateTrieDB.
miscDB := newMiscDB(dbc)
dbm.dbs[MiscDB] = miscDB
// Create other DBs
for et := int(MiscDB) + 1; et < int(databaseEntryTypeSize); et++ {
entryType := DBEntryType(et)
dir := dbm.getDBDir(entryType)
switch entryType {
case StateTrieMigrationDB:
if dir == dbBaseDirs[StateTrieMigrationDB] {
// If there is no migration DB, skip to set.
continue
}
fallthrough
case StateTrieDB:
newDBC := getDBEntryConfig(dbc, entryType, dir)
if dbc.NumStateTrieShards > 1 && !dbc.DBType.selfShardable() { // make non-sharding db if the db is sharding itself
db, err = newShardedDB(newDBC, entryType, dbc.NumStateTrieShards)
} else {
db, err = newDatabase(newDBC, entryType)
}
default:
newDBC := getDBEntryConfig(dbc, entryType, dir)
db, err = newDatabase(newDBC, entryType)
}
if err != nil {
logger.Crit("Failed while generating databases", "DBType", dbBaseDirs[et], "err", err)
}
dbm.dbs[et] = db
db.Meter(dbMetricPrefix + dbBaseDirs[et] + "/") // Each database collects metrics independently.
}
return dbm, nil
}
// newDatabase returns Database interface with given DBConfig.
func newDatabase(dbc *DBConfig, entryType DBEntryType) (Database, error) {
switch dbc.DBType {
case LevelDB:
return NewLevelDB(dbc, entryType)
case RocksDB:
return NewRocksDB(dbc.Dir, dbc.RocksDBConfig)
case BadgerDB:
return NewBadgerDB(dbc.Dir)
case MemoryDB:
return NewMemDB(), nil
case DynamoDB:
return NewDynamoDB(dbc.DynamoDBConfig)
default:
logger.Info("database type is not set, fall back to default LevelDB")
return NewLevelDB(dbc, 0)
}
}
// newDatabaseManager returns the pointer of databaseManager with default configuration.
func newDatabaseManager(dbc *DBConfig) *databaseManager {
return &databaseManager{
config: dbc,
dbs: make([]Database, databaseEntryTypeSize),
cm: newCacheManager(),
}
}
// NewDBManager returns DBManager interface.
// If SingleDB is false, each Database will have its own DB.
// If not, each Database will share one common DB.
func NewDBManager(dbc *DBConfig) DBManager {
if dbc.SingleDB {
logger.Info("Single database is used for persistent storage", "DBType", dbc.DBType)
if dbm, err := singleDatabaseDBManager(dbc); err != nil {
logger.Crit("Failed to create a single database", "DBType", dbc.DBType, "err", err)
} else {
return dbm
}
} else {
checkDBEntryConfigRatio()
logger.Info("Non-single database is used for persistent storage", "DBType", dbc.DBType)
dbm, err := databaseDBManager(dbc)
if err != nil {
logger.Crit("Failed to create databases", "DBType", dbc.DBType, "err", err)
}
if migrationBlockNum := dbm.getStateTrieMigrationInfo(); migrationBlockNum > 0 {
mdb := dbm.getDatabase(StateTrieMigrationDB)
if mdb == nil {
logger.Error("Failed to load StateTrieMigrationDB database", "migrationBlockNumber", migrationBlockNum)
} else {
dbm.inMigration = true
dbm.migrationBlockNumber = migrationBlockNum
}
}
return dbm
}
logger.Crit("Must not reach here!")
return nil
}
func (dbm *databaseManager) IsParallelDBWrite() bool {
return dbm.config.ParallelDBWrite
}
func (dbm *databaseManager) IsSingle() bool {
return dbm.config.SingleDB
}
func (dbm *databaseManager) InMigration() bool {
dbm.lockInMigration.RLock()
defer dbm.lockInMigration.RUnlock()
return dbm.inMigration
}
func (dbm *databaseManager) MigrationBlockNumber() uint64 {
return dbm.migrationBlockNumber
}
func (dbm *databaseManager) NewBatch(dbEntryType DBEntryType) Batch {
if dbEntryType == StateTrieDB {
dbm.lockInMigration.RLock()
defer dbm.lockInMigration.RUnlock()
if dbm.inMigration {
newDBBatch := dbm.getDatabase(StateTrieMigrationDB).NewBatch()
oldDBBatch := dbm.getDatabase(StateTrieDB).NewBatch()
return NewStateTrieDBBatch([]Batch{oldDBBatch, newDBBatch})
}
} else if dbEntryType == StateTrieMigrationDB {
return dbm.GetStateTrieMigrationDB().NewBatch()
}
return dbm.getDatabase(dbEntryType).NewBatch()
}
func NewStateTrieDBBatch(batches []Batch) Batch {
return &stateTrieDBBatch{batches: batches}
}
type stateTrieDBBatch struct {
batches []Batch
}
func (stdBatch *stateTrieDBBatch) Put(key []byte, value []byte) error {
var errResult error
for _, batch := range stdBatch.batches {
if err := batch.Put(key, value); err != nil {
errResult = err
}
}
return errResult
}
func (stdBatch *stateTrieDBBatch) Delete(key []byte) error {
var errResult error
for _, batch := range stdBatch.batches {
if err := batch.Delete(key); err != nil {
errResult = err
}
}
return errResult
}
// ValueSize is called to determine whether to write batches when it exceeds
// certain limit. stdBatch returns the largest size of its batches to
// write all batches at once when one of batch exceeds the limit.
func (stdBatch *stateTrieDBBatch) ValueSize() int {
maxSize := 0
for _, batch := range stdBatch.batches {
if batch.ValueSize() > maxSize {
maxSize = batch.ValueSize()
}
}
return maxSize
}
// Write passes the list of batch to WriteBatchesParallel for writing batches.
func (stdBatch *stateTrieDBBatch) Write() error {
_, err := WriteBatchesParallel(stdBatch.batches...)
return err
}
func (stdBatch *stateTrieDBBatch) Reset() {
for _, batch := range stdBatch.batches {
batch.Reset()
}
}
func (stdBatch *stateTrieDBBatch) Release() {
for _, batch := range stdBatch.batches {
batch.Release()
}
}
func (stdBatch *stateTrieDBBatch) Replay(w KeyValueWriter) error {
var errResult error
for _, batch := range stdBatch.batches {
if err := batch.Replay(w); err != nil {
errResult = err
}
}
return errResult
}
func (dbm *databaseManager) getDBDir(dbEntry DBEntryType) string {
miscDB := dbm.getDatabase(MiscDB)
enc, _ := miscDB.Get(databaseDirKey(uint64(dbEntry)))
if len(enc) == 0 {
return dbBaseDirs[dbEntry]
}
return string(enc)
}
func (dbm *databaseManager) setDBDir(dbEntry DBEntryType, newDBDir string) {
miscDB := dbm.getDatabase(MiscDB)
if err := miscDB.Put(databaseDirKey(uint64(dbEntry)), []byte(newDBDir)); err != nil {
logger.Crit("Failed to put DB dir", "err", err)
}
}
func (dbm *databaseManager) getStateTrieMigrationInfo() uint64 {
miscDB := dbm.getDatabase(MiscDB)
enc, _ := miscDB.Get(migrationStatusKey)
if len(enc) != 8 {
return 0
}
blockNum := binary.BigEndian.Uint64(enc)
return blockNum
}
func (dbm *databaseManager) setStateTrieMigrationStatus(blockNum uint64) {
miscDB := dbm.getDatabase(MiscDB)
if err := miscDB.Put(migrationStatusKey, common.Int64ToByteBigEndian(blockNum)); err != nil {
logger.Crit("Failed to set state trie migration status", "err", err)
}
if blockNum == 0 {
dbm.inMigration = false
return
}
dbm.inMigration, dbm.migrationBlockNumber = true, blockNum
}
func newStateTrieMigrationDB(dbc *DBConfig, blockNum uint64) (Database, string) {
dbDir := dbBaseDirs[StateTrieMigrationDB] + "_" + strconv.FormatUint(blockNum, 10)
newDBConfig := getDBEntryConfig(dbc, StateTrieMigrationDB, dbDir)
var newDB Database
var err error
if newDBConfig.NumStateTrieShards > 1 {
newDB, err = newShardedDB(newDBConfig, StateTrieMigrationDB, newDBConfig.NumStateTrieShards)
} else {
newDB, err = newDatabase(newDBConfig, StateTrieMigrationDB)
}
if err != nil {
logger.Crit("Failed to create a new database for state trie migration", "err", err)
}
newDB.Meter(dbMetricPrefix + dbBaseDirs[StateTrieMigrationDB] + "/") // Each database collects metrics independently.
logger.Info("Created a new database for state trie migration", "newStateTrieDB", newDBConfig.Dir)
return newDB, dbDir
}
// CreateMigrationDBAndSetStatus create migrationDB and set migration status.
func (dbm *databaseManager) CreateMigrationDBAndSetStatus(blockNum uint64) error {
if dbm.InMigration() {
logger.Warn("Failed to set a new state trie migration db. Already in migration")
return errors.New("already in migration")
}
if dbm.config.SingleDB {
logger.Warn("Setting a new database for state trie migration is allowed for non-single database only")
return errors.New("singleDB does not support state trie migration")
}
logger.Info("Start setting a new database for state trie migration", "blockNum", blockNum)
// Create a new database for migration process.
newDB, newDBDir := newStateTrieMigrationDB(dbm.config, blockNum)
// lock to prevent from a conflict of reading state DB and changing state DB
dbm.lockInMigration.Lock()
defer dbm.lockInMigration.Unlock()
// Store migration db path in misc db
dbm.setDBDir(StateTrieMigrationDB, newDBDir)
// Set migration db
dbm.dbs[StateTrieMigrationDB] = newDB
// Store the migration status
dbm.setStateTrieMigrationStatus(blockNum)
return nil
}
// FinishStateMigration updates stateTrieDB and removes the old one.
// The function should be called only after when state trie migration is finished.
// It returns a channel that closes when removeDB is finished.
func (dbm *databaseManager) FinishStateMigration(succeed bool) chan struct{} {
// lock to prevent from a conflict of reading state DB and changing state DB
dbm.lockInMigration.Lock()
defer dbm.lockInMigration.Unlock()
dbRemoved := StateTrieDB
dbUsed := StateTrieMigrationDB
if !succeed {
dbRemoved, dbUsed = dbUsed, dbRemoved
}
dbToBeRemoved := dbm.dbs[dbRemoved]
dbToBeUsed := dbm.dbs[dbUsed]
dbDirToBeRemoved := dbm.getDBDir(dbRemoved)
dbDirToBeUsed := dbm.getDBDir(dbUsed)
// Replace StateTrieDB with new one
dbm.setDBDir(StateTrieDB, dbDirToBeUsed)
dbm.dbs[StateTrieDB] = dbToBeUsed
dbm.setStateTrieMigrationStatus(0)
dbm.dbs[StateTrieMigrationDB] = nil
dbm.setDBDir(StateTrieMigrationDB, "")
dbPathToBeRemoved := filepath.Join(dbm.config.Dir, dbDirToBeRemoved)
dbToBeRemoved.Close()
endCheck := make(chan struct{})
go removeDB(dbPathToBeRemoved, endCheck)
return endCheck
}
func removeDB(dbPath string, endCheck chan struct{}) {
defer func() {
if endCheck != nil {
close(endCheck)
}
}()
if err := os.RemoveAll(dbPath); err != nil {
logger.Error("Failed to remove the database due to an error", "err", err, "dir", dbPath)
return
}
logger.Info("Successfully removed database", "path", dbPath)
}
func (dbm *databaseManager) GetStateTrieDB() Database {
return dbm.dbs[StateTrieDB]
}
func (dbm *databaseManager) GetStateTrieMigrationDB() Database {
return dbm.dbs[StateTrieMigrationDB]
}
func (dbm *databaseManager) GetMiscDB() Database {
return dbm.dbs[MiscDB]
}
func (dbm *databaseManager) GetSnapshotDB() Database {
return dbm.getDatabase(SnapshotDB)
}
func (dbm *databaseManager) TryCatchUpWithPrimary() error {
for _, db := range dbm.dbs {
if db != nil {
if err := db.TryCatchUpWithPrimary(); err != nil {
return err
}
}
}
return nil
}
func (dbm *databaseManager) Stat(property string) (string, error) {
stats := ""
errs := ""
for idx, db := range dbm.dbs {
if db != nil {
stat, err := db.Stat(property)
headInfo := fmt.Sprintf(" [%s:%s]\n", DBEntryType(idx), db.Type())
if err == nil {
stats += headInfo + stat
} else {
errs += headInfo + err.Error()
}
}
}
if errs == "" {
return stats, nil
} else {
return stats, errors.New(errs)
}
}
func (dbm *databaseManager) Compact(start []byte, limit []byte) error {
errs := ""
for idx, db := range dbm.dbs {
if db != nil {
if err := db.Compact(start, limit); err != nil {
headInfo := fmt.Sprintf(" [%s:%s]\n", DBEntryType(idx), db.Type())
errs = headInfo + err.Error()
}
}
}
if errs == "" {
return nil
} else {
return errors.New(errs)
}
}
func (dbm *databaseManager) GetMemDB() *MemDB {
if dbm.config.DBType == MemoryDB {
if memDB, ok := dbm.dbs[0].(*MemDB); ok {
return memDB
} else {
logger.Error("DBManager is set as memory DBManager, but actual value is not set as memory DBManager.")
return nil
}
}
logger.Error("GetMemDB() call to non memory DBManager object.")
return nil
}
// GetDBConfig returns DBConfig of the DB manager.
func (dbm *databaseManager) GetDBConfig() *DBConfig {
return dbm.config
}
func (dbm *databaseManager) getDatabase(dbEntryType DBEntryType) Database {
if dbm.config.DBType == MemoryDB {
return dbm.dbs[0]
} else {
return dbm.dbs[dbEntryType]
}
}
func (dbm *databaseManager) Close() {
// If single DB, only close the first database.
if dbm.config.SingleDB {
dbm.dbs[0].Close()
return
}
// If not single DB, close all databases.
for _, db := range dbm.dbs {
if db != nil {
db.Close()
}
}
}
// TODO-Klaytn Some of below need to be invisible outside database package
// Canonical Hash operations.
// ReadCanonicalHash retrieves the hash assigned to a canonical block number.
func (dbm *databaseManager) ReadCanonicalHash(number uint64) common.Hash {
if cached := dbm.cm.readCanonicalHashCache(number); !common.EmptyHash(cached) {
return cached
}
db := dbm.getDatabase(headerDB)
data, _ := db.Get(headerHashKey(number))
if len(data) == 0 {
return common.Hash{}
}
hash := common.BytesToHash(data)
dbm.cm.writeCanonicalHashCache(number, hash)
return hash
}
// WriteCanonicalHash stores the hash assigned to a canonical block number.
func (dbm *databaseManager) WriteCanonicalHash(hash common.Hash, number uint64) {
db := dbm.getDatabase(headerDB)
if err := db.Put(headerHashKey(number), hash.Bytes()); err != nil {
logger.Crit("Failed to store number to hash mapping", "err", err)
}
dbm.cm.writeCanonicalHashCache(number, hash)
}
// DeleteCanonicalHash removes the number to hash canonical mapping.
func (dbm *databaseManager) DeleteCanonicalHash(number uint64) {
db := dbm.getDatabase(headerDB)
if err := db.Delete(headerHashKey(number)); err != nil {
logger.Crit("Failed to delete number to hash mapping", "err", err)
}
dbm.cm.writeCanonicalHashCache(number, common.Hash{})
}
// Head Header Hash operations.