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core: lessen mem-spike during 1.8->1.9 conversion (#19610)

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* core/blockchain: lessen mem-spike during 1.8->1.9 conversion

* core/blockchain.go: make levedb->freezer conversion gradually

* core/blockchain: write the batch
This commit is contained in:
Martin Holst Swende 2019-07-08 10:24:16 +02:00 committed by Péter Szilágyi
parent 7fd82a0e3e
commit f2eb3b1c56
1 changed files with 47 additions and 4 deletions
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51
core/blockchain.go
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@ -927,6 +927,12 @@ func (bc *BlockChain) truncateAncient(head uint64) error {
return nil
}
// numberHash is just a container for a number and a hash, to represent a block
type numberHash struct {
number uint64
hash common.Hash
}
// InsertReceiptChain attempts to complete an already existing header chain with
// transaction and receipt data.
func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain []types.Receipts, ancientLimit uint64) (int, error) {
@ -998,7 +1004,7 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
}
}
}()
var deleted types.Blocks
var deleted []*numberHash
for i, block := range blockChain {
// Short circuit insertion if shutting down or processing failed
if atomic.LoadInt32(&bc.procInterrupt) == 1 {
@ -1033,12 +1039,40 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
// Always keep genesis block in active database.
if b.NumberU64() != 0 {
deleted = append(deleted, b)
deleted = append(deleted, &numberHash{b.NumberU64(), b.Hash()})
}
if time.Since(logged) > 8*time.Second {
log.Info("Migrating ancient blocks", "count", count, "elapsed", common.PrettyDuration(time.Since(start)))
logged = time.Now()
}
// Don't collect too much in-memory, write it out every 100K blocks
if len(deleted) > 100000 {
// Sync the ancient store explicitly to ensure all data has been flushed to disk.
if err := bc.db.Sync(); err != nil {
return 0, err
}
// Wipe out canonical block data.
for _, nh := range deleted {
rawdb.DeleteBlockWithoutNumber(batch, nh.hash, nh.number)
rawdb.DeleteCanonicalHash(batch, nh.number)
}
if err := batch.Write(); err != nil {
return 0, err
}
batch.Reset()
// Wipe out side chain too.
for _, nh := range deleted {
for _, hash := range rawdb.ReadAllHashes(bc.db, nh.number) {
rawdb.DeleteBlock(batch, hash, nh.number)
}
}
if err := batch.Write(); err != nil {
return 0, err
}
batch.Reset()
deleted = deleted[0:]
}
}
if count > 0 {
log.Info("Migrated ancient blocks", "count", count, "elapsed", common.PrettyDuration(time.Since(start)))
@ -1066,7 +1100,11 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
previous = nil // disable rollback explicitly
// Wipe out canonical block data.
for _, block := range append(deleted, blockChain...) {
for _, nh := range deleted {
rawdb.DeleteBlockWithoutNumber(batch, nh.hash, nh.number)
rawdb.DeleteCanonicalHash(batch, nh.number)
}
for _, block := range blockChain {
// Always keep genesis block in active database.
if block.NumberU64() != 0 {
rawdb.DeleteBlockWithoutNumber(batch, block.Hash(), block.NumberU64())
@ -1079,7 +1117,12 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
batch.Reset()
// Wipe out side chain too.
for _, block := range append(deleted, blockChain...) {
for _, nh := range deleted {
for _, hash := range rawdb.ReadAllHashes(bc.db, nh.number) {
rawdb.DeleteBlock(batch, hash, nh.number)
}
}
for _, block := range blockChain {
// Always keep genesis block in active database.
if block.NumberU64() != 0 {
for _, hash := range rawdb.ReadAllHashes(bc.db, block.NumberU64()) {