cmd, core, eth, les, node: chain freezer on top of db rework
This commit is contained in:
parent
0c5f8c078a
commit
006c21efc7
@ -368,9 +368,12 @@ func exportPreimages(ctx *cli.Context) error {
|
||||
|
||||
func copyDb(ctx *cli.Context) error {
|
||||
// Ensure we have a source chain directory to copy
|
||||
if len(ctx.Args()) != 1 {
|
||||
if len(ctx.Args()) < 1 {
|
||||
utils.Fatalf("Source chaindata directory path argument missing")
|
||||
}
|
||||
if len(ctx.Args()) < 2 {
|
||||
utils.Fatalf("Source ancient chain directory path argument missing")
|
||||
}
|
||||
// Initialize a new chain for the running node to sync into
|
||||
stack := makeFullNode(ctx)
|
||||
defer stack.Close()
|
||||
@ -385,7 +388,7 @@ func copyDb(ctx *cli.Context) error {
|
||||
dl := downloader.New(0, chainDb, syncBloom, new(event.TypeMux), chain, nil, nil)
|
||||
|
||||
// Create a source peer to satisfy downloader requests from
|
||||
db, err := rawdb.NewLevelDBDatabase(ctx.Args().First(), ctx.GlobalInt(utils.CacheFlag.Name)/2, 256, "")
|
||||
db, err := rawdb.NewLevelDBDatabaseWithFreezer(ctx.Args().First(), ctx.GlobalInt(utils.CacheFlag.Name)/2, 256, ctx.Args().Get(1), "")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -62,6 +62,7 @@ var (
|
||||
utils.BootnodesV4Flag,
|
||||
utils.BootnodesV5Flag,
|
||||
utils.DataDirFlag,
|
||||
utils.AncientFlag,
|
||||
utils.KeyStoreDirFlag,
|
||||
utils.ExternalSignerFlag,
|
||||
utils.NoUSBFlag,
|
||||
|
@ -69,6 +69,7 @@ var AppHelpFlagGroups = []flagGroup{
|
||||
Flags: []cli.Flag{
|
||||
configFileFlag,
|
||||
utils.DataDirFlag,
|
||||
utils.AncientFlag,
|
||||
utils.KeyStoreDirFlag,
|
||||
utils.NoUSBFlag,
|
||||
utils.NetworkIdFlag,
|
||||
|
@ -117,6 +117,10 @@ var (
|
||||
Usage: "Data directory for the databases and keystore",
|
||||
Value: DirectoryString{node.DefaultDataDir()},
|
||||
}
|
||||
AncientFlag = DirectoryFlag{
|
||||
Name: "datadir.ancient",
|
||||
Usage: "Data directory for ancient chain segments (default = inside chaindata)",
|
||||
}
|
||||
KeyStoreDirFlag = DirectoryFlag{
|
||||
Name: "keystore",
|
||||
Usage: "Directory for the keystore (default = inside the datadir)",
|
||||
@ -1378,6 +1382,9 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
|
||||
cfg.DatabaseCache = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheDatabaseFlag.Name) / 100
|
||||
}
|
||||
cfg.DatabaseHandles = makeDatabaseHandles()
|
||||
if ctx.GlobalIsSet(AncientFlag.Name) {
|
||||
cfg.DatabaseFreezer = ctx.GlobalString(AncientFlag.Name)
|
||||
}
|
||||
|
||||
if gcmode := ctx.GlobalString(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" {
|
||||
Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name)
|
||||
@ -1566,7 +1573,7 @@ func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
|
||||
if ctx.GlobalString(SyncModeFlag.Name) == "light" {
|
||||
name = "lightchaindata"
|
||||
}
|
||||
chainDb, err := stack.OpenDatabase(name, cache, handles, "")
|
||||
chainDb, err := stack.OpenDatabaseWithFreezer(name, cache, handles, "", "")
|
||||
if err != nil {
|
||||
Fatalf("Could not open database: %v", err)
|
||||
}
|
||||
|
@ -30,8 +30,11 @@ import (
|
||||
)
|
||||
|
||||
// ReadCanonicalHash retrieves the hash assigned to a canonical block number.
|
||||
func ReadCanonicalHash(db ethdb.Reader, number uint64) common.Hash {
|
||||
data, _ := db.Get(headerHashKey(number))
|
||||
func ReadCanonicalHash(db ethdb.AncientReader, number uint64) common.Hash {
|
||||
data, _ := db.Ancient("hashes", number)
|
||||
if len(data) == 0 {
|
||||
data, _ = db.Get(headerHashKey(number))
|
||||
}
|
||||
if len(data) == 0 {
|
||||
return common.Hash{}
|
||||
}
|
||||
@ -52,6 +55,24 @@ func DeleteCanonicalHash(db ethdb.Writer, number uint64) {
|
||||
}
|
||||
}
|
||||
|
||||
// readAllHashes retrieves all the hashes assigned to blocks at a certain heights,
|
||||
// both canonical and reorged forks included.
|
||||
//
|
||||
// This method is a helper for the chain reader. It should never be exposed to the
|
||||
// outside world.
|
||||
func readAllHashes(db ethdb.Iteratee, number uint64) []common.Hash {
|
||||
prefix := headerKeyPrefix(number)
|
||||
|
||||
hashes := make([]common.Hash, 0, 1)
|
||||
it := db.NewIteratorWithPrefix(prefix)
|
||||
for it.Next() {
|
||||
if key := it.Key(); len(key) == len(prefix)+32 {
|
||||
hashes = append(hashes, common.BytesToHash(key[len(key)-32:]))
|
||||
}
|
||||
}
|
||||
return hashes
|
||||
}
|
||||
|
||||
// ReadHeaderNumber returns the header number assigned to a hash.
|
||||
func ReadHeaderNumber(db ethdb.Reader, hash common.Hash) *uint64 {
|
||||
data, _ := db.Get(headerNumberKey(hash))
|
||||
@ -129,13 +150,19 @@ func WriteFastTrieProgress(db ethdb.Writer, count uint64) {
|
||||
}
|
||||
|
||||
// ReadHeaderRLP retrieves a block header in its raw RLP database encoding.
|
||||
func ReadHeaderRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Get(headerKey(number, hash))
|
||||
func ReadHeaderRLP(db ethdb.AncientReader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Ancient("headers", number)
|
||||
if len(data) == 0 {
|
||||
data, _ = db.Get(headerKey(number, hash))
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
// HasHeader verifies the existence of a block header corresponding to the hash.
|
||||
func HasHeader(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
func HasHeader(db ethdb.AncientReader, hash common.Hash, number uint64) bool {
|
||||
if has, err := db.Ancient("hashes", number); err == nil && common.BytesToHash(has) == hash {
|
||||
return true
|
||||
}
|
||||
if has, err := db.Has(headerKey(number, hash)); !has || err != nil {
|
||||
return false
|
||||
}
|
||||
@ -143,7 +170,7 @@ func HasHeader(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
}
|
||||
|
||||
// ReadHeader retrieves the block header corresponding to the hash.
|
||||
func ReadHeader(db ethdb.Reader, hash common.Hash, number uint64) *types.Header {
|
||||
func ReadHeader(db ethdb.AncientReader, hash common.Hash, number uint64) *types.Header {
|
||||
data := ReadHeaderRLP(db, hash, number)
|
||||
if len(data) == 0 {
|
||||
return nil
|
||||
@ -197,8 +224,11 @@ func deleteHeaderWithoutNumber(db ethdb.Writer, hash common.Hash, number uint64)
|
||||
}
|
||||
|
||||
// ReadBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
|
||||
func ReadBodyRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Get(blockBodyKey(number, hash))
|
||||
func ReadBodyRLP(db ethdb.AncientReader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Ancient("bodies", number)
|
||||
if len(data) == 0 {
|
||||
data, _ = db.Get(blockBodyKey(number, hash))
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
@ -210,7 +240,10 @@ func WriteBodyRLP(db ethdb.Writer, hash common.Hash, number uint64, rlp rlp.RawV
|
||||
}
|
||||
|
||||
// HasBody verifies the existence of a block body corresponding to the hash.
|
||||
func HasBody(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
func HasBody(db ethdb.AncientReader, hash common.Hash, number uint64) bool {
|
||||
if has, err := db.Ancient("hashes", number); err == nil && common.BytesToHash(has) == hash {
|
||||
return true
|
||||
}
|
||||
if has, err := db.Has(blockBodyKey(number, hash)); !has || err != nil {
|
||||
return false
|
||||
}
|
||||
@ -218,7 +251,7 @@ func HasBody(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
}
|
||||
|
||||
// ReadBody retrieves the block body corresponding to the hash.
|
||||
func ReadBody(db ethdb.Reader, hash common.Hash, number uint64) *types.Body {
|
||||
func ReadBody(db ethdb.AncientReader, hash common.Hash, number uint64) *types.Body {
|
||||
data := ReadBodyRLP(db, hash, number)
|
||||
if len(data) == 0 {
|
||||
return nil
|
||||
@ -248,13 +281,16 @@ func DeleteBody(db ethdb.Writer, hash common.Hash, number uint64) {
|
||||
}
|
||||
|
||||
// ReadTdRLP retrieves a block's total difficulty corresponding to the hash in RLP encoding.
|
||||
func ReadTdRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Get(headerTDKey(number, hash))
|
||||
func ReadTdRLP(db ethdb.AncientReader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Ancient("diffs", number)
|
||||
if len(data) == 0 {
|
||||
data, _ = db.Get(headerTDKey(number, hash))
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
// ReadTd retrieves a block's total difficulty corresponding to the hash.
|
||||
func ReadTd(db ethdb.Reader, hash common.Hash, number uint64) *big.Int {
|
||||
func ReadTd(db ethdb.AncientReader, hash common.Hash, number uint64) *big.Int {
|
||||
data := ReadTdRLP(db, hash, number)
|
||||
if len(data) == 0 {
|
||||
return nil
|
||||
@ -287,7 +323,10 @@ func DeleteTd(db ethdb.Writer, hash common.Hash, number uint64) {
|
||||
|
||||
// HasReceipts verifies the existence of all the transaction receipts belonging
|
||||
// to a block.
|
||||
func HasReceipts(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
func HasReceipts(db ethdb.AncientReader, hash common.Hash, number uint64) bool {
|
||||
if has, err := db.Ancient("hashes", number); err == nil && common.BytesToHash(has) == hash {
|
||||
return true
|
||||
}
|
||||
if has, err := db.Has(blockReceiptsKey(number, hash)); !has || err != nil {
|
||||
return false
|
||||
}
|
||||
@ -295,15 +334,18 @@ func HasReceipts(db ethdb.Reader, hash common.Hash, number uint64) bool {
|
||||
}
|
||||
|
||||
// ReadReceiptsRLP retrieves all the transaction receipts belonging to a block in RLP encoding.
|
||||
func ReadReceiptsRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Get(blockReceiptsKey(number, hash))
|
||||
func ReadReceiptsRLP(db ethdb.AncientReader, hash common.Hash, number uint64) rlp.RawValue {
|
||||
data, _ := db.Ancient("receipts", number)
|
||||
if len(data) == 0 {
|
||||
data, _ = db.Get(blockReceiptsKey(number, hash))
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
// ReadRawReceipts retrieves all the transaction receipts belonging to a block.
|
||||
// The receipt metadata fields are not guaranteed to be populated, so they
|
||||
// should not be used. Use ReadReceipts instead if the metadata is needed.
|
||||
func ReadRawReceipts(db ethdb.Reader, hash common.Hash, number uint64) types.Receipts {
|
||||
func ReadRawReceipts(db ethdb.AncientReader, hash common.Hash, number uint64) types.Receipts {
|
||||
// Retrieve the flattened receipt slice
|
||||
data := ReadReceiptsRLP(db, hash, number)
|
||||
if len(data) == 0 {
|
||||
@ -329,7 +371,7 @@ func ReadRawReceipts(db ethdb.Reader, hash common.Hash, number uint64) types.Rec
|
||||
// The current implementation populates these metadata fields by reading the receipts'
|
||||
// corresponding block body, so if the block body is not found it will return nil even
|
||||
// if the receipt itself is stored.
|
||||
func ReadReceipts(db ethdb.Reader, hash common.Hash, number uint64, config *params.ChainConfig) types.Receipts {
|
||||
func ReadReceipts(db ethdb.AncientReader, hash common.Hash, number uint64, config *params.ChainConfig) types.Receipts {
|
||||
// We're deriving many fields from the block body, retrieve beside the receipt
|
||||
receipts := ReadRawReceipts(db, hash, number)
|
||||
if receipts == nil {
|
||||
@ -377,7 +419,7 @@ func DeleteReceipts(db ethdb.Writer, hash common.Hash, number uint64) {
|
||||
//
|
||||
// Note, due to concurrent download of header and block body the header and thus
|
||||
// canonical hash can be stored in the database but the body data not (yet).
|
||||
func ReadBlock(db ethdb.Reader, hash common.Hash, number uint64) *types.Block {
|
||||
func ReadBlock(db ethdb.AncientReader, hash common.Hash, number uint64) *types.Block {
|
||||
header := ReadHeader(db, hash, number)
|
||||
if header == nil {
|
||||
return nil
|
||||
@ -413,7 +455,7 @@ func deleteBlockWithoutNumber(db ethdb.Writer, hash common.Hash, number uint64)
|
||||
}
|
||||
|
||||
// FindCommonAncestor returns the last common ancestor of two block headers
|
||||
func FindCommonAncestor(db ethdb.Reader, a, b *types.Header) *types.Header {
|
||||
func FindCommonAncestor(db ethdb.AncientReader, a, b *types.Header) *types.Header {
|
||||
for bn := b.Number.Uint64(); a.Number.Uint64() > bn; {
|
||||
a = ReadHeader(db, a.ParentHash, a.Number.Uint64()-1)
|
||||
if a == nil {
|
||||
|
@ -69,7 +69,7 @@ func DeleteTxLookupEntry(db ethdb.Writer, hash common.Hash) {
|
||||
|
||||
// ReadTransaction retrieves a specific transaction from the database, along with
|
||||
// its added positional metadata.
|
||||
func ReadTransaction(db ethdb.Reader, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64) {
|
||||
func ReadTransaction(db ethdb.AncientReader, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64) {
|
||||
blockNumber := ReadTxLookupEntry(db, hash)
|
||||
if blockNumber == nil {
|
||||
return nil, common.Hash{}, 0, 0
|
||||
@ -94,7 +94,7 @@ func ReadTransaction(db ethdb.Reader, hash common.Hash) (*types.Transaction, com
|
||||
|
||||
// ReadReceipt retrieves a specific transaction receipt from the database, along with
|
||||
// its added positional metadata.
|
||||
func ReadReceipt(db ethdb.Reader, hash common.Hash, config *params.ChainConfig) (*types.Receipt, common.Hash, uint64, uint64) {
|
||||
func ReadReceipt(db ethdb.AncientReader, hash common.Hash, config *params.ChainConfig) (*types.Receipt, common.Hash, uint64, uint64) {
|
||||
// Retrieve the context of the receipt based on the transaction hash
|
||||
blockNumber := ReadTxLookupEntry(db, hash)
|
||||
if blockNumber == nil {
|
||||
|
@ -22,10 +22,44 @@ import (
|
||||
"github.com/ethereum/go-ethereum/ethdb/memorydb"
|
||||
)
|
||||
|
||||
// freezerdb is a databse wrapper that enabled freezer data retrievals.
|
||||
type freezerdb struct {
|
||||
ethdb.KeyValueStore
|
||||
ethdb.Ancienter
|
||||
}
|
||||
|
||||
// nofreezedb is a database wrapper that disables freezer data retrievals.
|
||||
type nofreezedb struct {
|
||||
ethdb.KeyValueStore
|
||||
}
|
||||
|
||||
// Frozen returns nil as we don't have a backing chain freezer.
|
||||
func (db *nofreezedb) Ancient(kind string, number uint64) ([]byte, error) {
|
||||
return nil, errOutOfBounds
|
||||
}
|
||||
|
||||
// NewDatabase creates a high level database on top of a given key-value data
|
||||
// store without a freezer moving immutable chain segments into cold storage.
|
||||
func NewDatabase(db ethdb.KeyValueStore) ethdb.Database {
|
||||
return db
|
||||
return &nofreezedb{
|
||||
KeyValueStore: db,
|
||||
}
|
||||
}
|
||||
|
||||
// NewDatabaseWithFreezer creates a high level database on top of a given key-
|
||||
// value data store with a freezer moving immutable chain segments into cold
|
||||
// storage.
|
||||
func NewDatabaseWithFreezer(db ethdb.KeyValueStore, freezer string, namespace string) (ethdb.Database, error) {
|
||||
frdb, err := newFreezer(freezer, namespace)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
go frdb.freeze(db)
|
||||
|
||||
return &freezerdb{
|
||||
KeyValueStore: db,
|
||||
Ancienter: frdb,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// NewMemoryDatabase creates an ephemeral in-memory key-value database without a
|
||||
@ -34,9 +68,9 @@ func NewMemoryDatabase() ethdb.Database {
|
||||
return NewDatabase(memorydb.New())
|
||||
}
|
||||
|
||||
// NewMemoryDatabaseWithCap creates an ephemeral in-memory key-value database with
|
||||
// an initial starting capacity, but without a freezer moving immutable chain
|
||||
// segments into cold storage.
|
||||
// NewMemoryDatabaseWithCap creates an ephemeral in-memory key-value database
|
||||
// with an initial starting capacity, but without a freezer moving immutable
|
||||
// chain segments into cold storage.
|
||||
func NewMemoryDatabaseWithCap(size int) ethdb.Database {
|
||||
return NewDatabase(memorydb.NewWithCap(size))
|
||||
}
|
||||
@ -50,3 +84,18 @@ func NewLevelDBDatabase(file string, cache int, handles int, namespace string) (
|
||||
}
|
||||
return NewDatabase(db), nil
|
||||
}
|
||||
|
||||
// NewLevelDBDatabaseWithFreezer creates a persistent key-value database with a
|
||||
// freezer moving immutable chain segments into cold storage.
|
||||
func NewLevelDBDatabaseWithFreezer(file string, cache int, handles int, freezer string, namespace string) (ethdb.Database, error) {
|
||||
kvdb, err := leveldb.New(file, cache, handles, namespace)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
frdb, err := NewDatabaseWithFreezer(kvdb, freezer, namespace)
|
||||
if err != nil {
|
||||
kvdb.Close()
|
||||
return nil, err
|
||||
}
|
||||
return frdb, nil
|
||||
}
|
||||
|
276
core/rawdb/freezer.go
Normal file
276
core/rawdb/freezer.go
Normal file
@ -0,0 +1,276 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package rawdb
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"math"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/ethdb"
|
||||
"github.com/ethereum/go-ethereum/log"
|
||||
"github.com/ethereum/go-ethereum/metrics"
|
||||
)
|
||||
|
||||
// errUnknownTable is returned if the user attempts to read from a table that is
|
||||
// not tracked by the freezer.
|
||||
var errUnknownTable = errors.New("unknown table")
|
||||
|
||||
const (
|
||||
// freezerRecheckInterval is the frequency to check the key-value database for
|
||||
// chain progression that might permit new blocks to be frozen into immutable
|
||||
// storage.
|
||||
freezerRecheckInterval = time.Minute
|
||||
|
||||
// freezerBlockGraduation is the number of confirmations a block must achieve
|
||||
// before it becomes elligible for chain freezing. This must exceed any chain
|
||||
// reorg depth, since the freezer also deletes all block siblings.
|
||||
freezerBlockGraduation = 60000
|
||||
|
||||
// freezerBatchLimit is the maximum number of blocks to freeze in one batch
|
||||
// before doing an fsync and deleting it from the key-value store.
|
||||
freezerBatchLimit = 30000
|
||||
)
|
||||
|
||||
// freezer is an memory mapped append-only database to store immutable chain data
|
||||
// into flat files:
|
||||
//
|
||||
// - The append only nature ensures that disk writes are minimized.
|
||||
// - The memory mapping ensures we can max out system memory for caching without
|
||||
// reserving it for go-ethereum. This would also reduce the memory requirements
|
||||
// of Geth, and thus also GC overhead.
|
||||
type freezer struct {
|
||||
tables map[string]*freezerTable // Data tables for storing everything
|
||||
frozen uint64 // Number of blocks already frozen
|
||||
}
|
||||
|
||||
// newFreezer creates a chain freezer that moves ancient chain data into
|
||||
// append-only flat file containers.
|
||||
func newFreezer(datadir string, namespace string) (*freezer, error) {
|
||||
// Create the initial freezer object
|
||||
var (
|
||||
readMeter = metrics.NewRegisteredMeter(namespace+"ancient/read", nil)
|
||||
writeMeter = metrics.NewRegisteredMeter(namespace+"ancient/write", nil)
|
||||
)
|
||||
// Open all the supported data tables
|
||||
freezer := &freezer{
|
||||
tables: make(map[string]*freezerTable),
|
||||
}
|
||||
for _, name := range []string{"hashes", "headers", "bodies", "receipts", "diffs"} {
|
||||
table, err := newTable(datadir, name, readMeter, writeMeter)
|
||||
if err != nil {
|
||||
for _, table := range freezer.tables {
|
||||
table.Close()
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
freezer.tables[name] = table
|
||||
}
|
||||
// Truncate all data tables to the same length
|
||||
freezer.frozen = math.MaxUint64
|
||||
for _, table := range freezer.tables {
|
||||
if freezer.frozen > table.items {
|
||||
freezer.frozen = table.items
|
||||
}
|
||||
}
|
||||
for _, table := range freezer.tables {
|
||||
if err := table.truncate(freezer.frozen); err != nil {
|
||||
for _, table := range freezer.tables {
|
||||
table.Close()
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return freezer, nil
|
||||
}
|
||||
|
||||
// Close terminates the chain freezer, unmapping all the data files.
|
||||
func (f *freezer) Close() error {
|
||||
var errs []error
|
||||
for _, table := range f.tables {
|
||||
if err := table.Close(); err != nil {
|
||||
errs = append(errs, err)
|
||||
}
|
||||
}
|
||||
if errs != nil {
|
||||
return fmt.Errorf("%v", errs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// sync flushes all data tables to disk.
|
||||
func (f *freezer) sync() error {
|
||||
var errs []error
|
||||
for _, table := range f.tables {
|
||||
if err := table.Sync(); err != nil {
|
||||
errs = append(errs, err)
|
||||
}
|
||||
}
|
||||
if errs != nil {
|
||||
return fmt.Errorf("%v", errs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Ancient retrieves an ancient binary blob from the append-only immutable files.
|
||||
func (f *freezer) Ancient(kind string, number uint64) ([]byte, error) {
|
||||
if table := f.tables[kind]; table != nil {
|
||||
return table.Retrieve(number)
|
||||
}
|
||||
return nil, errUnknownTable
|
||||
}
|
||||
|
||||
// freeze is a background thread that periodically checks the blockchain for any
|
||||
// import progress and moves ancient data from the fast database into the freezer.
|
||||
//
|
||||
// This functionality is deliberately broken off from block importing to avoid
|
||||
// incurring additional data shuffling delays on block propagation.
|
||||
func (f *freezer) freeze(db ethdb.KeyValueStore) {
|
||||
nfdb := &nofreezedb{KeyValueStore: db}
|
||||
|
||||
for {
|
||||
// Retrieve the freezing threshold. In theory we're interested only in full
|
||||
// blocks post-sync, but that would keep the live database enormous during
|
||||
// dast sync. By picking the fast block, we still get to deep freeze all the
|
||||
// final immutable data without having to wait for sync to finish.
|
||||
hash := ReadHeadFastBlockHash(nfdb)
|
||||
if hash == (common.Hash{}) {
|
||||
log.Debug("Current fast block hash unavailable") // new chain, empty database
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
continue
|
||||
}
|
||||
number := ReadHeaderNumber(nfdb, hash)
|
||||
switch {
|
||||
case number == nil:
|
||||
log.Error("Current fast block number unavailable", "hash", hash)
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
continue
|
||||
|
||||
case *number < freezerBlockGraduation:
|
||||
log.Debug("Current fast block not old enough", "number", *number, "hash", hash, "delay", freezerBlockGraduation)
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
continue
|
||||
|
||||
case *number-freezerBlockGraduation <= f.frozen:
|
||||
log.Debug("Ancient blocks frozen already", "number", *number, "hash", hash, "frozen", f.frozen)
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
continue
|
||||
}
|
||||
head := ReadHeader(nfdb, hash, *number)
|
||||
if head == nil {
|
||||
log.Error("Current fast block unavailable", "number", *number, "hash", hash)
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
continue
|
||||
}
|
||||
// Seems we have data ready to be frozen, process in usable batches
|
||||
limit := *number - freezerBlockGraduation
|
||||
if limit-f.frozen > freezerBatchLimit {
|
||||
limit = f.frozen + freezerBatchLimit
|
||||
}
|
||||
var (
|
||||
start = time.Now()
|
||||
first = f.frozen
|
||||
ancients = make([]common.Hash, 0, limit)
|
||||
)
|
||||
for f.frozen < limit {
|
||||
// Retrieves all the components of the canonical block
|
||||
hash := ReadCanonicalHash(nfdb, f.frozen)
|
||||
if hash == (common.Hash{}) {
|
||||
log.Error("Canonical hash missing, can't freeze", "number", f.frozen)
|
||||
break
|
||||
}
|
||||
header := ReadHeaderRLP(nfdb, hash, f.frozen)
|
||||
if len(header) == 0 {
|
||||
log.Error("Block header missing, can't freeze", "number", f.frozen, "hash", hash)
|
||||
break
|
||||
}
|
||||
body := ReadBodyRLP(nfdb, hash, f.frozen)
|
||||
if len(body) == 0 {
|
||||
log.Error("Block body missing, can't freeze", "number", f.frozen, "hash", hash)
|
||||
break
|
||||
}
|
||||
receipts := ReadReceiptsRLP(nfdb, hash, f.frozen)
|
||||
if len(receipts) == 0 {
|
||||
log.Error("Block receipts missing, can't freeze", "number", f.frozen, "hash", hash)
|
||||
break
|
||||
}
|
||||
td := ReadTdRLP(nfdb, hash, f.frozen)
|
||||
if len(td) == 0 {
|
||||
log.Error("Total difficulty missing, can't freeze", "number", f.frozen, "hash", hash)
|
||||
break
|
||||
}
|
||||
// Inject all the components into the relevant data tables
|
||||
if err := f.tables["hashes"].Append(f.frozen, hash[:]); err != nil {
|
||||
log.Error("Failed to deep freeze hash", "number", f.frozen, "hash", hash, "err", err)
|
||||
break
|
||||
}
|
||||
if err := f.tables["headers"].Append(f.frozen, header); err != nil {
|
||||
log.Error("Failed to deep freeze header", "number", f.frozen, "hash", hash, "err", err)
|
||||
break
|
||||
}
|
||||
if err := f.tables["bodies"].Append(f.frozen, body); err != nil {
|
||||
log.Error("Failed to deep freeze body", "number", f.frozen, "hash", hash, "err", err)
|
||||
break
|
||||
}
|
||||
if err := f.tables["receipts"].Append(f.frozen, receipts); err != nil {
|
||||
log.Error("Failed to deep freeze receipts", "number", f.frozen, "hash", hash, "err", err)
|
||||
break
|
||||
}
|
||||
if err := f.tables["diffs"].Append(f.frozen, td); err != nil {
|
||||
log.Error("Failed to deep freeze difficulty", "number", f.frozen, "hash", hash, "err", err)
|
||||
break
|
||||
}
|
||||
log.Trace("Deep froze ancient block", "number", f.frozen, "hash", hash)
|
||||
atomic.AddUint64(&f.frozen, 1) // Only modify atomically
|
||||
ancients = append(ancients, hash)
|
||||
}
|
||||
// Batch of blocks have been frozen, flush them before wiping from leveldb
|
||||
if err := f.sync(); err != nil {
|
||||
log.Crit("Failed to flush frozen tables", "err", err)
|
||||
}
|
||||
// Wipe out all data from the active database
|
||||
batch := db.NewBatch()
|
||||
for number := first; number < f.frozen; number++ {
|
||||
for _, hash := range readAllHashes(db, number) {
|
||||
if hash == ancients[number-first] {
|
||||
deleteBlockWithoutNumber(batch, hash, number)
|
||||
} else {
|
||||
DeleteBlock(batch, hash, number)
|
||||
}
|
||||
}
|
||||
}
|
||||
if err := batch.Write(); err != nil {
|
||||
log.Crit("Failed to delete frozen items", "err", err)
|
||||
}
|
||||
// Log something friendly for the user
|
||||
context := []interface{}{
|
||||
"blocks", f.frozen - first, "elapsed", common.PrettyDuration(time.Since(start)), "number", f.frozen - 1,
|
||||
}
|
||||
if n := len(ancients); n > 0 {
|
||||
context = append(context, []interface{}{"hash", ancients[n-1]}...)
|
||||
}
|
||||
log.Info("Deep froze chain segment", context...)
|
||||
|
||||
// Avoid database thrashing with tiny writes
|
||||
if f.frozen-first < freezerBatchLimit {
|
||||
time.Sleep(freezerRecheckInterval)
|
||||
}
|
||||
}
|
||||
}
|
284
core/rawdb/freezer_table.go
Normal file
284
core/rawdb/freezer_table.go
Normal file
@ -0,0 +1,284 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package rawdb
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sync"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/log"
|
||||
"github.com/ethereum/go-ethereum/metrics"
|
||||
"github.com/golang/snappy"
|
||||
)
|
||||
|
||||
var (
|
||||
// errClosed is returned if an operation attempts to read from or write to the
|
||||
// freezer table after it has already been closed.
|
||||
errClosed = errors.New("closed")
|
||||
|
||||
// errOutOfBounds is returned if the item requested is not contained within the
|
||||
// freezer table.
|
||||
errOutOfBounds = errors.New("out of bounds")
|
||||
)
|
||||
|
||||
// freezerTable represents a single chained data table within the freezer (e.g. blocks).
|
||||
// It consists of a data file (snappy encoded arbitrary data blobs) and an index
|
||||
// file (uncompressed 64 bit indices into the data file).
|
||||
type freezerTable struct {
|
||||
content *os.File // File descriptor for the data content of the table
|
||||
offsets *os.File // File descriptor for the index file of the table
|
||||
|
||||
items uint64 // Number of items stored in the table
|
||||
bytes uint64 // Number of content bytes stored in the table
|
||||
|
||||
readMeter metrics.Meter // Meter for measuring the effective amount of data read
|
||||
writeMeter metrics.Meter // Meter for measuring the effective amount of data written
|
||||
|
||||
logger log.Logger // Logger with database path and table name ambedded
|
||||
lock sync.RWMutex // Mutex protecting the data file descriptors
|
||||
}
|
||||
|
||||
// newTable opens a freezer table, creating the data and index files if they are
|
||||
// non existent. Both files are truncated to the shortest common length to ensure
|
||||
// they don't go out of sync.
|
||||
func newTable(path string, name string, readMeter metrics.Meter, writeMeter metrics.Meter) (*freezerTable, error) {
|
||||
// Ensure the containing directory exists and open the two data files
|
||||
if err := os.MkdirAll(path, 0755); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
content, err := os.OpenFile(filepath.Join(path, name+".dat"), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
offsets, err := os.OpenFile(filepath.Join(path, name+".idx"), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
|
||||
if err != nil {
|
||||
content.Close()
|
||||
return nil, err
|
||||
}
|
||||
// Create the table and repair any past inconsistency
|
||||
tab := &freezerTable{
|
||||
content: content,
|
||||
offsets: offsets,
|
||||
readMeter: readMeter,
|
||||
writeMeter: writeMeter,
|
||||
logger: log.New("database", path, "table", name),
|
||||
}
|
||||
if err := tab.repair(); err != nil {
|
||||
offsets.Close()
|
||||
content.Close()
|
||||
return nil, err
|
||||
}
|
||||
return tab, nil
|
||||
}
|
||||
|
||||
// repair cross checks the content and the offsets file and truncates them to
|
||||
// be in sync with each other after a potential crash / data loss.
|
||||
func (t *freezerTable) repair() error {
|
||||
// Create a temporary offset buffer to init files with and read offsts into
|
||||
offset := make([]byte, 8)
|
||||
|
||||
// If we've just created the files, initialize the offsets with the 0 index
|
||||
stat, err := t.offsets.Stat()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if stat.Size() == 0 {
|
||||
if _, err := t.offsets.Write(offset); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
// Ensure the offsets are a multiple of 8 bytes
|
||||
if overflow := stat.Size() % 8; overflow != 0 {
|
||||
t.offsets.Truncate(stat.Size() - overflow) // New file can't trigger this path
|
||||
}
|
||||
// Retrieve the file sizes and prepare for truncation
|
||||
if stat, err = t.offsets.Stat(); err != nil {
|
||||
return err
|
||||
}
|
||||
offsetsSize := stat.Size()
|
||||
|
||||
if stat, err = t.content.Stat(); err != nil {
|
||||
return err
|
||||
}
|
||||
contentSize := stat.Size()
|
||||
|
||||
// Keep truncating both files until they come in sync
|
||||
t.offsets.ReadAt(offset, offsetsSize-8)
|
||||
contentExp := int64(binary.LittleEndian.Uint64(offset))
|
||||
|
||||
for contentExp != contentSize {
|
||||
// Truncate the content file to the last offset pointer
|
||||
if contentExp < contentSize {
|
||||
t.logger.Warn("Truncating dangling content", "indexed", common.StorageSize(contentExp), "stored", common.StorageSize(contentSize))
|
||||
if err := t.content.Truncate(contentExp); err != nil {
|
||||
return err
|
||||
}
|
||||
contentSize = contentExp
|
||||
}
|
||||
// Truncate the offsets to point within the content file
|
||||
if contentExp > contentSize {
|
||||
t.logger.Warn("Truncating dangling offsets", "indexed", common.StorageSize(contentExp), "stored", common.StorageSize(contentSize))
|
||||
if err := t.offsets.Truncate(offsetsSize - 8); err != nil {
|
||||
return err
|
||||
}
|
||||
offsetsSize -= 8
|
||||
|
||||
t.offsets.ReadAt(offset, offsetsSize-8)
|
||||
contentExp = int64(binary.LittleEndian.Uint64(offset))
|
||||
}
|
||||
}
|
||||
// Ensure all reparation changes have been written to disk
|
||||
if err := t.offsets.Sync(); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := t.content.Sync(); err != nil {
|
||||
return err
|
||||
}
|
||||
// Update the item and byte counters and return
|
||||
t.items = uint64(offsetsSize/8 - 1) // last index points to the end of the data file
|
||||
t.bytes = uint64(contentSize)
|
||||
|
||||
t.logger.Debug("Chain freezer table opened", "items", t.items, "size", common.StorageSize(t.bytes))
|
||||
return nil
|
||||
}
|
||||
|
||||
// truncate discards any recent data above the provided threashold number.
|
||||
func (t *freezerTable) truncate(items uint64) error {
|
||||
// If out item count is corrent, don't do anything
|
||||
if t.items <= items {
|
||||
return nil
|
||||
}
|
||||
// Something's out of sync, truncate the table's offset index
|
||||
t.logger.Warn("Truncating freezer table", "items", t.items, "limit", items)
|
||||
if err := t.offsets.Truncate(int64(items+1) * 8); err != nil {
|
||||
return err
|
||||
}
|
||||
// Calculate the new expected size of the data file and truncate it
|
||||
offset := make([]byte, 8)
|
||||
t.offsets.ReadAt(offset, int64(items)*8)
|
||||
expected := binary.LittleEndian.Uint64(offset)
|
||||
|
||||
if err := t.content.Truncate(int64(expected)); err != nil {
|
||||
return err
|
||||
}
|
||||
// All data files truncated, set internal counters and return
|
||||
t.items, t.bytes = items, expected
|
||||
return nil
|
||||
}
|
||||
|
||||
// Close unmaps all active memory mapped regions.
|
||||
func (t *freezerTable) Close() error {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
var errs []error
|
||||
if err := t.offsets.Close(); err != nil {
|
||||
errs = append(errs, err)
|
||||
}
|
||||
t.offsets = nil
|
||||
|
||||
if err := t.content.Close(); err != nil {
|
||||
errs = append(errs, err)
|
||||
}
|
||||
t.content = nil
|
||||
|
||||
if errs != nil {
|
||||
return fmt.Errorf("%v", errs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Append injects a binary blob at the end of the freezer table. The item index
|
||||
// is a precautionary parameter to ensure data correctness, but the table will
|
||||
// reject already existing data.
|
||||
//
|
||||
// Note, this method will *not* flush any data to disk so be sure to explicitly
|
||||
// fsync before irreversibly deleting data from the database.
|
||||
func (t *freezerTable) Append(item uint64, blob []byte) error {
|
||||
// Ensure the table is still accessible
|
||||
if t.offsets == nil || t.content == nil {
|
||||
return errClosed
|
||||
}
|
||||
// Ensure only the next item can be written, nothing else
|
||||
if t.items != item {
|
||||
panic(fmt.Sprintf("appending unexpected item: want %d, have %d", t.items, item))
|
||||
}
|
||||
// Encode the blob and write it into the data file
|
||||
blob = snappy.Encode(nil, blob)
|
||||
if _, err := t.content.Write(blob); err != nil {
|
||||
return err
|
||||
}
|
||||
t.bytes += uint64(len(blob))
|
||||
|
||||
offset := make([]byte, 8)
|
||||
binary.LittleEndian.PutUint64(offset, t.bytes)
|
||||
if _, err := t.offsets.Write(offset); err != nil {
|
||||
return err
|
||||
}
|
||||
t.items++
|
||||
|
||||
t.writeMeter.Mark(int64(len(blob) + 8)) // 8 = 1 x 8 byte offset
|
||||
return nil
|
||||
}
|
||||
|
||||
// Retrieve looks up the data offset of an item with the given index and retrieves
|
||||
// the raw binary blob from the data file.
|
||||
func (t *freezerTable) Retrieve(item uint64) ([]byte, error) {
|
||||
t.lock.RLock()
|
||||
defer t.lock.RUnlock()
|
||||
|
||||
// Ensure the table and the item is accessible
|
||||
if t.offsets == nil || t.content == nil {
|
||||
return nil, errClosed
|
||||
}
|
||||
if t.items <= item {
|
||||
return nil, errOutOfBounds
|
||||
}
|
||||
// Item reachable, retrieve the data content boundaries
|
||||
offset := make([]byte, 8)
|
||||
if _, err := t.offsets.ReadAt(offset, int64(item*8)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
start := binary.LittleEndian.Uint64(offset)
|
||||
|
||||
if _, err := t.offsets.ReadAt(offset, int64((item+1)*8)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
end := binary.LittleEndian.Uint64(offset)
|
||||
|
||||
// Retrieve the data itself, decompress and return
|
||||
blob := make([]byte, end-start)
|
||||
if _, err := t.content.ReadAt(blob, int64(start)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
t.readMeter.Mark(int64(len(blob) + 16)) // 16 = 2 x 8 byte offset
|
||||
return snappy.Decode(nil, blob)
|
||||
}
|
||||
|
||||
// Sync pushes any pending data from memory out to disk. This is an expensive
|
||||
// operation, so use it with care.
|
||||
func (t *freezerTable) Sync() error {
|
||||
if err := t.offsets.Sync(); err != nil {
|
||||
return err
|
||||
}
|
||||
return t.content.Sync()
|
||||
}
|
@ -50,6 +50,12 @@ func (t *table) Get(key []byte) ([]byte, error) {
|
||||
return t.db.Get(append([]byte(t.prefix), key...))
|
||||
}
|
||||
|
||||
// Ancient is a noop passthrough that just forwards the request to the underlying
|
||||
// database.
|
||||
func (t *table) Ancient(kind string, number uint64) ([]byte, error) {
|
||||
return t.db.Ancient(kind, number)
|
||||
}
|
||||
|
||||
// Put inserts the given value into the database at a prefixed version of the
|
||||
// provided key.
|
||||
func (t *table) Put(key []byte, value []byte) error {
|
||||
|
@ -120,7 +120,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
|
||||
log.Info("Allocated trie memory caches", "clean", common.StorageSize(config.TrieCleanCache)*1024*1024, "dirty", common.StorageSize(config.TrieDirtyCache)*1024*1024)
|
||||
|
||||
// Assemble the Ethereum object
|
||||
chainDb, err := ctx.OpenDatabase("chaindata", config.DatabaseCache, config.DatabaseHandles, "eth/db/chaindata/")
|
||||
chainDb, err := ctx.OpenDatabaseWithFreezer("chaindata", config.DatabaseCache, config.DatabaseHandles, config.DatabaseFreezer, "eth/db/chaindata/")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
@ -114,6 +114,7 @@ type Config struct {
|
||||
SkipBcVersionCheck bool `toml:"-"`
|
||||
DatabaseHandles int `toml:"-"`
|
||||
DatabaseCache int
|
||||
DatabaseFreezer string
|
||||
|
||||
TrieCleanCache int
|
||||
TrieDirtyCache int
|
||||
|
@ -67,10 +67,23 @@ type KeyValueStore interface {
|
||||
io.Closer
|
||||
}
|
||||
|
||||
// Ancienter wraps the Ancient method for a backing immutable chain data store.
|
||||
type Ancienter interface {
|
||||
// Ancient retrieves an ancient binary blob from the append-only immutable files.
|
||||
Ancient(kind string, number uint64) ([]byte, error)
|
||||
}
|
||||
|
||||
// AncientReader contains the methods required to access both key-value as well as
|
||||
// immutable ancient data.
|
||||
type AncientReader interface {
|
||||
Reader
|
||||
Ancienter
|
||||
}
|
||||
|
||||
// Database contains all the methods required by the high level database to not
|
||||
// only access the key-value data store but also the chain freezer.
|
||||
type Database interface {
|
||||
Reader
|
||||
AncientReader
|
||||
Writer
|
||||
Batcher
|
||||
Iteratee
|
||||
|
20
node/node.go
20
node/node.go
@ -614,6 +614,26 @@ func (n *Node) OpenDatabase(name string, cache, handles int, namespace string) (
|
||||
return rawdb.NewLevelDBDatabase(n.config.ResolvePath(name), cache, handles, namespace)
|
||||
}
|
||||
|
||||
// OpenDatabaseWithFreezer opens an existing database with the given name (or
|
||||
// creates one if no previous can be found) from within the node's data directory,
|
||||
// also attaching a chain freezer to it that moves ancient chain data from the
|
||||
// database to immutable append-only files. If the node is an ephemeral one, a
|
||||
// memory database is returned.
|
||||
func (n *Node) OpenDatabaseWithFreezer(name string, cache, handles int, freezer, namespace string) (ethdb.Database, error) {
|
||||
if n.config.DataDir == "" {
|
||||
return rawdb.NewMemoryDatabase(), nil
|
||||
}
|
||||
root := n.config.ResolvePath(name)
|
||||
|
||||
switch {
|
||||
case freezer == "":
|
||||
freezer = filepath.Join(root, "ancient")
|
||||
case !filepath.IsAbs(freezer):
|
||||
freezer = n.config.ResolvePath(freezer)
|
||||
}
|
||||
return rawdb.NewLevelDBDatabaseWithFreezer(root, cache, handles, freezer, namespace)
|
||||
}
|
||||
|
||||
// ResolvePath returns the absolute path of a resource in the instance directory.
|
||||
func (n *Node) ResolvePath(x string) string {
|
||||
return n.config.ResolvePath(x)
|
||||
|
@ -17,6 +17,7 @@
|
||||
package node
|
||||
|
||||
import (
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
|
||||
"github.com/ethereum/go-ethereum/accounts"
|
||||
@ -44,11 +45,27 @@ func (ctx *ServiceContext) OpenDatabase(name string, cache int, handles int, nam
|
||||
if ctx.config.DataDir == "" {
|
||||
return rawdb.NewMemoryDatabase(), nil
|
||||
}
|
||||
db, err := rawdb.NewLevelDBDatabase(ctx.config.ResolvePath(name), cache, handles, namespace)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
return rawdb.NewLevelDBDatabase(ctx.config.ResolvePath(name), cache, handles, namespace)
|
||||
}
|
||||
|
||||
// OpenDatabaseWithFreezer opens an existing database with the given name (or
|
||||
// creates one if no previous can be found) from within the node's data directory,
|
||||
// also attaching a chain freezer to it that moves ancient chain data from the
|
||||
// database to immutable append-only files. If the node is an ephemeral one, a
|
||||
// memory database is returned.
|
||||
func (ctx *ServiceContext) OpenDatabaseWithFreezer(name string, cache int, handles int, freezer string, namespace string) (ethdb.Database, error) {
|
||||
if ctx.config.DataDir == "" {
|
||||
return rawdb.NewMemoryDatabase(), nil
|
||||
}
|
||||
return db, nil
|
||||
root := ctx.config.ResolvePath(name)
|
||||
|
||||
switch {
|
||||
case freezer == "":
|
||||
freezer = filepath.Join(root, "ancient")
|
||||
case !filepath.IsAbs(freezer):
|
||||
freezer = ctx.config.ResolvePath(freezer)
|
||||
}
|
||||
return rawdb.NewLevelDBDatabaseWithFreezer(root, cache, handles, freezer, namespace)
|
||||
}
|
||||
|
||||
// ResolvePath resolves a user path into the data directory if that was relative
|
||||
|
Loading…
Reference in New Issue
Block a user