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core, eth/downloader: fix resetting below freezer threshold

This commit is contained in:
Péter Szilágyi 2021-11-22 11:11:59 +02:00
parent 6f2c3f2114
commit d9c13d407f
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GPG Key ID: E9AE538CEDF8293D
2 changed files with 9 additions and 9 deletions
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16
core/blockchain.go
View File

@ -296,7 +296,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
if diskRoot != (common.Hash{}) {
log.Warn("Head state missing, repairing", "number", head.Number(), "hash", head.Hash(), "snaproot", diskRoot)
snapDisk, err := bc.SetHeadBeyondRoot(head.NumberU64(), diskRoot)
snapDisk, err := bc.setHeadBeyondRoot(head.NumberU64(), diskRoot, true)
if err != nil {
return nil, err
}
@ -306,7 +306,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
}
} else {
log.Warn("Head state missing, repairing", "number", head.Number(), "hash", head.Hash())
if err := bc.SetHead(head.NumberU64()); err != nil {
if _, err := bc.setHeadBeyondRoot(head.NumberU64(), common.Hash{}, true); err != nil {
return nil, err
}
}
@ -482,11 +482,11 @@ func (bc *BlockChain) loadLastState() error {
// was fast synced or full synced and in which state, the method will try to
// delete minimal data from disk whilst retaining chain consistency.
func (bc *BlockChain) SetHead(head uint64) error {
_, err := bc.SetHeadBeyondRoot(head, common.Hash{})
_, err := bc.setHeadBeyondRoot(head, common.Hash{}, false)
return err
}
// SetHeadBeyondRoot rewinds the local chain to a new head with the extra condition
// setHeadBeyondRoot rewinds the local chain to a new head with the extra condition
// that the rewind must pass the specified state root. This method is meant to be
// used when rewinding with snapshots enabled to ensure that we go back further than
// persistent disk layer. Depending on whether the node was fast synced or full, and
@ -494,7 +494,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
// retaining chain consistency.
//
// The method returns the block number where the requested root cap was found.
func (bc *BlockChain) SetHeadBeyondRoot(head uint64, root common.Hash) (uint64, error) {
func (bc *BlockChain) setHeadBeyondRoot(head uint64, root common.Hash, repair bool) (uint64, error) {
if !bc.chainmu.TryLock() {
return 0, errChainStopped
}
@ -509,7 +509,7 @@ func (bc *BlockChain) SetHeadBeyondRoot(head uint64, root common.Hash) (uint64,
frozen, _ := bc.db.Ancients()
updateFn := func(db ethdb.KeyValueWriter, header *types.Header) (uint64, bool) {
// Rewind the block chain, ensuring we don't end up with a stateless head
// Rewind the blockchain, ensuring we don't end up with a stateless head
// block. Note, depth equality is permitted to allow using SetHead as a
// chain reparation mechanism without deleting any data!
if currentBlock := bc.CurrentBlock(); currentBlock != nil && header.Number.Uint64() <= currentBlock.NumberU64() {
@ -610,8 +610,8 @@ func (bc *BlockChain) SetHeadBeyondRoot(head uint64, root common.Hash) (uint64,
}
// If SetHead was only called as a chain reparation method, try to skip
// touching the header chain altogether, unless the freezer is broken
if block := bc.CurrentBlock(); block.NumberU64() == head {
if target, force := updateFn(bc.db, block.Header()); force {
if repair {
if target, force := updateFn(bc.db, bc.CurrentBlock().Header()); force {
bc.hc.SetHead(target, updateFn, delFn)
}
} else {

2
eth/downloader/downloader.go
View File

@ -535,7 +535,7 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I
}
// Rewind the ancient store and blockchain if reorg happens.
if origin+1 < frozen {
if err := d.lightchain.SetHead(origin + 1); err != nil {
if err := d.lightchain.SetHead(origin); err != nil {
return err
}
}