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core, eth/downloader: commit block data using batches (#15115)

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* ethdb: add Putter interface and Has method

* ethdb: improve docs and add IdealBatchSize

* ethdb: remove memory batch lock

Batches are not safe for concurrent use.

* core: use ethdb.Putter for Write* functions

This covers the easy cases.

* core/state: simplify StateSync

* trie: optimize local node check

* ethdb: add ValueSize to Batch

* core: optimize HasHeader check

This avoids one random database read get the block number. For many uses
of HasHeader, the expectation is that it's actually there. Using Has
avoids a load + decode of the value.

* core: write fast sync block data in batches

Collect writes into batches up to the ideal size instead of issuing many
small, concurrent writes.

* eth/downloader: commit larger state batches

Collect nodes into a batch up to the ideal size instead of committing
whenever a node is received.

* core: optimize HasBlock check

This avoids a random database read to get the number.

* core: use numberCache in HasHeader

numberCache has higher capacity, increasing the odds of finding the
header without a database lookup.

* core: write imported block data using a batch

Restore batch writes of state and add blocks, tx entries, receipts to
the same batch. The change also simplifies the miner.

This commit also removes posting of logs when a forked block is imported.

* core: fix DB write error handling

* ethdb: use RLock for Has

* core: fix HasBlock comment
This commit is contained in:
Felix Lange
2017-09-09 18:03:07 +02:00
committed by Péter Szilágyi
parent ac193e36ce
commit 10181b57a9
18 changed files with 247 additions and 280 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
core/database_util.go
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@@ -38,11 +38,6 @@ type DatabaseReader interface {
Get(key []byte) (value []byte, err error)
}
// DatabaseWriter wraps the Put method of a backing data store.
type DatabaseWriter interface {
Put(key, value []byte) error
}
// DatabaseDeleter wraps the Delete method of a backing data store.
type DatabaseDeleter interface {
Delete(key []byte) error
@@ -154,7 +149,7 @@ func GetHeadFastBlockHash(db DatabaseReader) common.Hash {
// GetHeaderRLP retrieves a block header in its raw RLP database encoding, or nil
// if the header's not found.
func GetHeaderRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
data, _ := db.Get(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
data, _ := db.Get(headerKey(hash, number))
return data
}
@@ -175,10 +170,18 @@ func GetHeader(db DatabaseReader, hash common.Hash, number uint64) *types.Header
// GetBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
func GetBodyRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
data, _ := db.Get(append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
data, _ := db.Get(blockBodyKey(hash, number))
return data
}
func headerKey(hash common.Hash, number uint64) []byte {
return append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
}
func blockBodyKey(hash common.Hash, number uint64) []byte {
return append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
}
// GetBody retrieves the block body (transactons, uncles) corresponding to the
// hash, nil if none found.
func GetBody(db DatabaseReader, hash common.Hash, number uint64) *types.Body {
@@ -340,7 +343,7 @@ func GetBloomBits(db DatabaseReader, bit uint, section uint64, head common.Hash)
}
// WriteCanonicalHash stores the canonical hash for the given block number.
func WriteCanonicalHash(db DatabaseWriter, hash common.Hash, number uint64) error {
func WriteCanonicalHash(db ethdb.Putter, hash common.Hash, number uint64) error {
key := append(append(headerPrefix, encodeBlockNumber(number)...), numSuffix...)
if err := db.Put(key, hash.Bytes()); err != nil {
log.Crit("Failed to store number to hash mapping", "err", err)
@@ -349,7 +352,7 @@ func WriteCanonicalHash(db DatabaseWriter, hash common.Hash, number uint64) erro
}
// WriteHeadHeaderHash stores the head header's hash.
func WriteHeadHeaderHash(db DatabaseWriter, hash common.Hash) error {
func WriteHeadHeaderHash(db ethdb.Putter, hash common.Hash) error {
if err := db.Put(headHeaderKey, hash.Bytes()); err != nil {
log.Crit("Failed to store last header's hash", "err", err)
}
@@ -357,7 +360,7 @@ func WriteHeadHeaderHash(db DatabaseWriter, hash common.Hash) error {
}
// WriteHeadBlockHash stores the head block's hash.
func WriteHeadBlockHash(db DatabaseWriter, hash common.Hash) error {
func WriteHeadBlockHash(db ethdb.Putter, hash common.Hash) error {
if err := db.Put(headBlockKey, hash.Bytes()); err != nil {
log.Crit("Failed to store last block's hash", "err", err)
}
@@ -365,7 +368,7 @@ func WriteHeadBlockHash(db DatabaseWriter, hash common.Hash) error {
}
// WriteHeadFastBlockHash stores the fast head block's hash.
func WriteHeadFastBlockHash(db DatabaseWriter, hash common.Hash) error {
func WriteHeadFastBlockHash(db ethdb.Putter, hash common.Hash) error {
if err := db.Put(headFastKey, hash.Bytes()); err != nil {
log.Crit("Failed to store last fast block's hash", "err", err)
}
@@ -373,7 +376,7 @@ func WriteHeadFastBlockHash(db DatabaseWriter, hash common.Hash) error {
}
// WriteHeader serializes a block header into the database.
func WriteHeader(db DatabaseWriter, header *types.Header) error {
func WriteHeader(db ethdb.Putter, header *types.Header) error {
data, err := rlp.EncodeToBytes(header)
if err != nil {
return err
@@ -393,7 +396,7 @@ func WriteHeader(db DatabaseWriter, header *types.Header) error {
}
// WriteBody serializes the body of a block into the database.
func WriteBody(db DatabaseWriter, hash common.Hash, number uint64, body *types.Body) error {
func WriteBody(db ethdb.Putter, hash common.Hash, number uint64, body *types.Body) error {
data, err := rlp.EncodeToBytes(body)
if err != nil {
return err
@@ -402,7 +405,7 @@ func WriteBody(db DatabaseWriter, hash common.Hash, number uint64, body *types.B
}
// WriteBodyRLP writes a serialized body of a block into the database.
func WriteBodyRLP(db DatabaseWriter, hash common.Hash, number uint64, rlp rlp.RawValue) error {
func WriteBodyRLP(db ethdb.Putter, hash common.Hash, number uint64, rlp rlp.RawValue) error {
key := append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
if err := db.Put(key, rlp); err != nil {
log.Crit("Failed to store block body", "err", err)
@@ -411,7 +414,7 @@ func WriteBodyRLP(db DatabaseWriter, hash common.Hash, number uint64, rlp rlp.Ra
}
// WriteTd serializes the total difficulty of a block into the database.
func WriteTd(db DatabaseWriter, hash common.Hash, number uint64, td *big.Int) error {
func WriteTd(db ethdb.Putter, hash common.Hash, number uint64, td *big.Int) error {
data, err := rlp.EncodeToBytes(td)
if err != nil {
return err
@@ -424,7 +427,7 @@ func WriteTd(db DatabaseWriter, hash common.Hash, number uint64, td *big.Int) er
}
// WriteBlock serializes a block into the database, header and body separately.
func WriteBlock(db DatabaseWriter, block *types.Block) error {
func WriteBlock(db ethdb.Putter, block *types.Block) error {
// Store the body first to retain database consistency
if err := WriteBody(db, block.Hash(), block.NumberU64(), block.Body()); err != nil {
return err
@@ -439,7 +442,7 @@ func WriteBlock(db DatabaseWriter, block *types.Block) error {
// WriteBlockReceipts stores all the transaction receipts belonging to a block
// as a single receipt slice. This is used during chain reorganisations for
// rescheduling dropped transactions.
func WriteBlockReceipts(db DatabaseWriter, hash common.Hash, number uint64, receipts types.Receipts) error {
func WriteBlockReceipts(db ethdb.Putter, hash common.Hash, number uint64, receipts types.Receipts) error {
// Convert the receipts into their storage form and serialize them
storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
for i, receipt := range receipts {
@@ -459,9 +462,7 @@ func WriteBlockReceipts(db DatabaseWriter, hash common.Hash, number uint64, rece
// WriteTxLookupEntries stores a positional metadata for every transaction from
// a block, enabling hash based transaction and receipt lookups.
func WriteTxLookupEntries(db ethdb.Database, block *types.Block) error {
batch := db.NewBatch()
func WriteTxLookupEntries(db ethdb.Putter, block *types.Block) error {
// Iterate over each transaction and encode its metadata
for i, tx := range block.Transactions() {
entry := txLookupEntry{
@@ -473,20 +474,16 @@ func WriteTxLookupEntries(db ethdb.Database, block *types.Block) error {
if err != nil {
return err
}
if err := batch.Put(append(lookupPrefix, tx.Hash().Bytes()...), data); err != nil {
if err := db.Put(append(lookupPrefix, tx.Hash().Bytes()...), data); err != nil {
return err
}
}
// Write the scheduled data into the database
if err := batch.Write(); err != nil {
log.Crit("Failed to store lookup entries", "err", err)
}
return nil
}
// WriteBloomBits writes the compressed bloom bits vector belonging to the given
// section and bit index.
func WriteBloomBits(db DatabaseWriter, bit uint, section uint64, head common.Hash, bits []byte) {
func WriteBloomBits(db ethdb.Putter, bit uint, section uint64, head common.Hash, bits []byte) {
key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
binary.BigEndian.PutUint16(key[1:], uint16(bit))
@@ -572,13 +569,13 @@ func GetBlockChainVersion(db DatabaseReader) int {
}
// WriteBlockChainVersion writes vsn as the version number to db.
func WriteBlockChainVersion(db DatabaseWriter, vsn int) {
func WriteBlockChainVersion(db ethdb.Putter, vsn int) {
enc, _ := rlp.EncodeToBytes(uint(vsn))
db.Put([]byte("BlockchainVersion"), enc)
}
// WriteChainConfig writes the chain config settings to the database.
func WriteChainConfig(db DatabaseWriter, hash common.Hash, cfg *params.ChainConfig) error {
func WriteChainConfig(db ethdb.Putter, hash common.Hash, cfg *params.ChainConfig) error {
// short circuit and ignore if nil config. GetChainConfig
// will return a default.
if cfg == nil {