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-rw-r--r--core/rawdb/database.go355
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diff --git a/core/rawdb/database.go b/core/rawdb/database.go
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+// 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 (
+ "bytes"
+ "errors"
+ "fmt"
+ "os"
+ "time"
+
+ "github.com/ava-labs/go-ethereum/common"
+ "github.com/ava-labs/go-ethereum/ethdb"
+ "github.com/ava-labs/go-ethereum/ethdb/leveldb"
+ "github.com/ava-labs/go-ethereum/ethdb/memorydb"
+ "github.com/ava-labs/go-ethereum/log"
+ "github.com/olekukonko/tablewriter"
+)
+
+// freezerdb is a database wrapper that enabled freezer data retrievals.
+type freezerdb struct {
+ ethdb.KeyValueStore
+ ethdb.AncientStore
+}
+
+// Close implements io.Closer, closing both the fast key-value store as well as
+// the slow ancient tables.
+func (frdb *freezerdb) Close() error {
+ var errs []error
+ if err := frdb.KeyValueStore.Close(); err != nil {
+ errs = append(errs, err)
+ }
+ if err := frdb.AncientStore.Close(); err != nil {
+ errs = append(errs, err)
+ }
+ if len(errs) != 0 {
+ return fmt.Errorf("%v", errs)
+ }
+ return nil
+}
+
+// nofreezedb is a database wrapper that disables freezer data retrievals.
+type nofreezedb struct {
+ ethdb.KeyValueStore
+}
+
+// HasAncient returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) HasAncient(kind string, number uint64) (bool, error) {
+ return false, errNotSupported
+}
+
+// Ancient returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) Ancient(kind string, number uint64) ([]byte, error) {
+ return nil, errNotSupported
+}
+
+// Ancients returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) Ancients() (uint64, error) {
+ return 0, errNotSupported
+}
+
+// AncientSize returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) AncientSize(kind string) (uint64, error) {
+ return 0, errNotSupported
+}
+
+// AppendAncient returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) AppendAncient(number uint64, hash, header, body, receipts, td []byte) error {
+ return errNotSupported
+}
+
+// TruncateAncients returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) TruncateAncients(items uint64) error {
+ return errNotSupported
+}
+
+// Sync returns an error as we don't have a backing chain freezer.
+func (db *nofreezedb) Sync() error {
+ return errNotSupported
+}
+
+// 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 &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) {
+ // Create the idle freezer instance
+ frdb, err := newFreezer(freezer, namespace)
+ if err != nil {
+ return nil, err
+ }
+ // Since the freezer can be stored separately from the user's key-value database,
+ // there's a fairly high probability that the user requests invalid combinations
+ // of the freezer and database. Ensure that we don't shoot ourselves in the foot
+ // by serving up conflicting data, leading to both datastores getting corrupted.
+ //
+ // - If both the freezer and key-value store is empty (no genesis), we just
+ // initialized a new empty freezer, so everything's fine.
+ // - If the key-value store is empty, but the freezer is not, we need to make
+ // sure the user's genesis matches the freezer. That will be checked in the
+ // blockchain, since we don't have the genesis block here (nor should we at
+ // this point care, the key-value/freezer combo is valid).
+ // - If neither the key-value store nor the freezer is empty, cross validate
+ // the genesis hashes to make sure they are compatible. If they are, also
+ // ensure that there's no gap between the freezer and sunsequently leveldb.
+ // - If the key-value store is not empty, but the freezer is we might just be
+ // upgrading to the freezer release, or we might have had a small chain and
+ // not frozen anything yet. Ensure that no blocks are missing yet from the
+ // key-value store, since that would mean we already had an old freezer.
+
+ // If the genesis hash is empty, we have a new key-value store, so nothing to
+ // validate in this method. If, however, the genesis hash is not nil, compare
+ // it to the freezer content.
+ if kvgenesis, _ := db.Get(headerHashKey(0)); len(kvgenesis) > 0 {
+ if frozen, _ := frdb.Ancients(); frozen > 0 {
+ // If the freezer already contains something, ensure that the genesis blocks
+ // match, otherwise we might mix up freezers across chains and destroy both
+ // the freezer and the key-value store.
+ if frgenesis, _ := frdb.Ancient(freezerHashTable, 0); !bytes.Equal(kvgenesis, frgenesis) {
+ return nil, fmt.Errorf("genesis mismatch: %#x (leveldb) != %#x (ancients)", kvgenesis, frgenesis)
+ }
+ // Key-value store and freezer belong to the same network. Ensure that they
+ // are contiguous, otherwise we might end up with a non-functional freezer.
+ if kvhash, _ := db.Get(headerHashKey(frozen)); len(kvhash) == 0 {
+ // Subsequent header after the freezer limit is missing from the database.
+ // Reject startup is the database has a more recent head.
+ if *ReadHeaderNumber(db, ReadHeadHeaderHash(db)) > frozen-1 {
+ return nil, fmt.Errorf("gap (#%d) in the chain between ancients and leveldb", frozen)
+ }
+ // Database contains only older data than the freezer, this happens if the
+ // state was wiped and reinited from an existing freezer.
+ } else {
+ // Key-value store continues where the freezer left off, all is fine. We might
+ // have duplicate blocks (crash after freezer write but before kay-value store
+ // deletion, but that's fine).
+ }
+ } else {
+ // If the freezer is empty, ensure nothing was moved yet from the key-value
+ // store, otherwise we'll end up missing data. We check block #1 to decide
+ // if we froze anything previously or not, but do take care of databases with
+ // only the genesis block.
+ if ReadHeadHeaderHash(db) != common.BytesToHash(kvgenesis) {
+ // Key-value store contains more data than the genesis block, make sure we
+ // didn't freeze anything yet.
+ if kvblob, _ := db.Get(headerHashKey(1)); len(kvblob) == 0 {
+ return nil, errors.New("ancient chain segments already extracted, please set --datadir.ancient to the correct path")
+ }
+ // Block #1 is still in the database, we're allowed to init a new feezer
+ } else {
+ // The head header is still the genesis, we're allowed to init a new feezer
+ }
+ }
+ }
+ // Freezer is consistent with the key-value database, permit combining the two
+ go frdb.freeze(db)
+
+ return &freezerdb{
+ KeyValueStore: db,
+ AncientStore: frdb,
+ }, nil
+}
+
+// NewMemoryDatabase creates an ephemeral in-memory key-value database without a
+// freezer moving immutable chain segments into cold storage.
+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.
+func NewMemoryDatabaseWithCap(size int) ethdb.Database {
+ return NewDatabase(memorydb.NewWithCap(size))
+}
+
+// NewLevelDBDatabase creates a persistent key-value database without a freezer
+// moving immutable chain segments into cold storage.
+func NewLevelDBDatabase(file string, cache int, handles int, namespace string) (ethdb.Database, error) {
+ db, err := leveldb.New(file, cache, handles, namespace)
+ if err != nil {
+ return nil, err
+ }
+ 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
+}
+
+// InspectDatabase traverses the entire database and checks the size
+// of all different categories of data.
+func InspectDatabase(db ethdb.Database) error {
+ it := db.NewIterator()
+ defer it.Release()
+
+ var (
+ count int64
+ start = time.Now()
+ logged = time.Now()
+
+ // Key-value store statistics
+ total common.StorageSize
+ headerSize common.StorageSize
+ bodySize common.StorageSize
+ receiptSize common.StorageSize
+ tdSize common.StorageSize
+ numHashPairing common.StorageSize
+ hashNumPairing common.StorageSize
+ trieSize common.StorageSize
+ txlookupSize common.StorageSize
+ preimageSize common.StorageSize
+ bloomBitsSize common.StorageSize
+ cliqueSnapsSize common.StorageSize
+
+ // Ancient store statistics
+ ancientHeaders common.StorageSize
+ ancientBodies common.StorageSize
+ ancientReceipts common.StorageSize
+ ancientHashes common.StorageSize
+ ancientTds common.StorageSize
+
+ // Les statistic
+ chtTrieNodes common.StorageSize
+ bloomTrieNodes common.StorageSize
+
+ // Meta- and unaccounted data
+ metadata common.StorageSize
+ unaccounted common.StorageSize
+ )
+ // Inspect key-value database first.
+ for it.Next() {
+ var (
+ key = it.Key()
+ size = common.StorageSize(len(key) + len(it.Value()))
+ )
+ total += size
+ switch {
+ case bytes.HasPrefix(key, headerPrefix) && bytes.HasSuffix(key, headerTDSuffix):
+ tdSize += size
+ case bytes.HasPrefix(key, headerPrefix) && bytes.HasSuffix(key, headerHashSuffix):
+ numHashPairing += size
+ case bytes.HasPrefix(key, headerPrefix) && len(key) == (len(headerPrefix)+8+common.HashLength):
+ headerSize += size
+ case bytes.HasPrefix(key, headerNumberPrefix) && len(key) == (len(headerNumberPrefix)+common.HashLength):
+ hashNumPairing += size
+ case bytes.HasPrefix(key, blockBodyPrefix) && len(key) == (len(blockBodyPrefix)+8+common.HashLength):
+ bodySize += size
+ case bytes.HasPrefix(key, blockReceiptsPrefix) && len(key) == (len(blockReceiptsPrefix)+8+common.HashLength):
+ receiptSize += size
+ case bytes.HasPrefix(key, txLookupPrefix) && len(key) == (len(txLookupPrefix)+common.HashLength):
+ txlookupSize += size
+ case bytes.HasPrefix(key, preimagePrefix) && len(key) == (len(preimagePrefix)+common.HashLength):
+ preimageSize += size
+ case bytes.HasPrefix(key, bloomBitsPrefix) && len(key) == (len(bloomBitsPrefix)+10+common.HashLength):
+ bloomBitsSize += size
+ case bytes.HasPrefix(key, []byte("clique-")) && len(key) == 7+common.HashLength:
+ cliqueSnapsSize += size
+ case bytes.HasPrefix(key, []byte("cht-")) && len(key) == 4+common.HashLength:
+ chtTrieNodes += size
+ case bytes.HasPrefix(key, []byte("blt-")) && len(key) == 4+common.HashLength:
+ bloomTrieNodes += size
+ case len(key) == common.HashLength:
+ trieSize += size
+ default:
+ var accounted bool
+ for _, meta := range [][]byte{databaseVerisionKey, headHeaderKey, headBlockKey, headFastBlockKey, fastTrieProgressKey} {
+ if bytes.Equal(key, meta) {
+ metadata += size
+ accounted = true
+ break
+ }
+ }
+ if !accounted {
+ unaccounted += size
+ }
+ }
+ count += 1
+ if count%1000 == 0 && time.Since(logged) > 8*time.Second {
+ log.Info("Inspecting database", "count", count, "elapsed", common.PrettyDuration(time.Since(start)))
+ logged = time.Now()
+ }
+ }
+ // Inspect append-only file store then.
+ ancients := []*common.StorageSize{&ancientHeaders, &ancientBodies, &ancientReceipts, &ancientHashes, &ancientTds}
+ for i, category := range []string{freezerHeaderTable, freezerBodiesTable, freezerReceiptTable, freezerHashTable, freezerDifficultyTable} {
+ if size, err := db.AncientSize(category); err == nil {
+ *ancients[i] += common.StorageSize(size)
+ total += common.StorageSize(size)
+ }
+ }
+ // Display the database statistic.
+ stats := [][]string{
+ {"Key-Value store", "Headers", headerSize.String()},
+ {"Key-Value store", "Bodies", bodySize.String()},
+ {"Key-Value store", "Receipts", receiptSize.String()},
+ {"Key-Value store", "Difficulties", tdSize.String()},
+ {"Key-Value store", "Block number->hash", numHashPairing.String()},
+ {"Key-Value store", "Block hash->number", hashNumPairing.String()},
+ {"Key-Value store", "Transaction index", txlookupSize.String()},
+ {"Key-Value store", "Bloombit index", bloomBitsSize.String()},
+ {"Key-Value store", "Trie nodes", trieSize.String()},
+ {"Key-Value store", "Trie preimages", preimageSize.String()},
+ {"Key-Value store", "Clique snapshots", cliqueSnapsSize.String()},
+ {"Key-Value store", "Singleton metadata", metadata.String()},
+ {"Ancient store", "Headers", ancientHeaders.String()},
+ {"Ancient store", "Bodies", ancientBodies.String()},
+ {"Ancient store", "Receipts", ancientReceipts.String()},
+ {"Ancient store", "Difficulties", ancientTds.String()},
+ {"Ancient store", "Block number->hash", ancientHashes.String()},
+ {"Light client", "CHT trie nodes", chtTrieNodes.String()},
+ {"Light client", "Bloom trie nodes", bloomTrieNodes.String()},
+ }
+ table := tablewriter.NewWriter(os.Stdout)
+ table.SetHeader([]string{"Database", "Category", "Size"})
+ table.SetFooter([]string{"", "Total", total.String()})
+ table.AppendBulk(stats)
+ table.Render()
+
+ if unaccounted > 0 {
+ log.Error("Database contains unaccounted data", "size", unaccounted)
+ }
+ return nil
+}
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