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[API] Snapshot delete operation flag added #2064

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merged 3 commits into from
Dec 25, 2023
Merged

[API] Snapshot delete operation flag added #2064

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0478766
[SetHead] Delete additional snapshot database via flag
hyunsooda Dec 12, 2023
8ba2d87
[SetHead] Description revised
hyunsooda Dec 12, 2023
6303ebc
[SetHead] Remove `deleteSnapshot` param
hyunsooda Dec 19, 2023
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37 changes: 19 additions & 18 deletions blockchain/blockchain.go
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Original file line number Diff line number Diff line change
Expand Up @@ -643,27 +643,28 @@ func (bc *BlockChain) setHeadBeyondRoot(head uint64, root common.Hash, repair bo
if err := bc.hc.SetHead(head, updateFn, delFn); err != nil {
return 0, err
}
}

// Delete istanbul snapshot database further two epochs
var (
curBlkNum = bc.CurrentBlock().Number().Uint64()
epoch = bc.Config().Istanbul.Epoch
votingEpoch = curBlkNum - (curBlkNum % epoch)
)
if votingEpoch == 0 {
votingEpoch = 1
}
// Delete the snapshot state beyond the block number of the previous epoch on the right
for i := curBlkNum; i >= votingEpoch; i-- {
if params.IsCheckpointInterval(i) {
// delete from sethead number to previous two epoch block nums
// to handle a block that contains non-empty vote data to make sure
// the `HandleGovernanceVote()` cannot be skipped
bc.db.DeleteIstanbulSnapshot(bc.GetBlockByNumber(i).Hash())
// Delete istanbul snapshot database further two epochs
// Invoked only if the sethead was originated from explicit API call
var (
curBlkNum = bc.CurrentBlock().Number().Uint64()
epoch = bc.Config().Istanbul.Epoch
votingEpoch = curBlkNum - (curBlkNum % epoch)
)
if votingEpoch == 0 {
votingEpoch = 1
}
// Delete the snapshot state beyond the block number of the previous epoch on the right
for i := curBlkNum; i >= votingEpoch; i-- {
if params.IsCheckpointInterval(i) {
// delete from sethead number to previous two epoch block nums
// to handle a block that contains non-empty vote data to make sure
// the `HandleGovernanceVote()` cannot be skipped
bc.db.DeleteIstanbulSnapshot(bc.GetBlockByNumber(i).Hash())
}
}
logger.Trace("[SetHead] Snapshot database deleted", "from", originLatestBlkNum, "to", votingEpoch)
}
logger.Trace("[SetHead] Snapshot database deleted", "from", originLatestBlkNum, "to", votingEpoch)

// Clear out any stale content from the caches
bc.futureBlocks.Purge()
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