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core: clear cache before writing canonical chain

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This commit is contained in:
Gary Rong 2024-01-29 22:13:39 +08:00
parent 064315d6b3
commit 2173b6f885
1 changed files with 6 additions and 3 deletions
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9
core/blockchain.go
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@ -2188,6 +2188,12 @@ func (bc *BlockChain) reorg(oldHead *types.Header, newHead *types.Block) error {
// rewind the canonical chain to a lower point.
log.Error("Impossible reorg, please file an issue", "oldnum", oldBlock.Number(), "oldhash", oldBlock.Hash(), "oldblocks", len(oldChain), "newnum", newBlock.Number(), "newhash", newBlock.Hash(), "newblocks", len(newChain))
}
// Reset the tx lookup cache in case to clear stale txlookups.
// This is done before writing any new chain data to avoid the
// weird scenario that canonical chain is changed while the
// stale lookups are still cached.
bc.txLookupCache.Purge()
// Insert the new chain(except the head block(reverse order)),
// taking care of the proper incremental order.
for i := len(newChain) - 1; i >= 1; i-- {
@ -2209,9 +2215,6 @@ func (bc *BlockChain) reorg(oldHead *types.Header, newHead *types.Block) error {
for _, tx := range diffs {
rawdb.DeleteTxLookupEntry(indexesBatch, tx)
}
// Reset the tx lookup cache in case to clear stale txlookups.
bc.txLookupCache.Purge()
// Delete all hash markers that are not part of the new canonical chain.
// Because the reorg function does not handle new chain head, all hash
// markers greater than or equal to new chain head should be deleted.