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eth/downloader: fix unexpected skeleton header deletion

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This commit is contained in:
Gary Rong 2023-01-09 15:07:08 +08:00
parent 2189773093
commit 686f7438d3
1 changed files with 8 additions and 2 deletions
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10
eth/downloader/skeleton.go
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@ -977,8 +977,14 @@ func (s *skeleton) processResponse(res *headerResponse) (linked bool, merged boo
// the expected new sync cycle after some propagated blocks. Log
// it for debugging purposes, explicitly clean and don't escalate.
case subchains == 2 && s.progress.Subchains[1].Head == s.progress.Subchains[1].Tail:
log.Debug("Cleaning previous beacon sync state", "head", s.progress.Subchains[1].Head)
rawdb.DeleteSkeletonHeader(batch, s.progress.Subchains[1].Head)
// Remove the leftover skeleton header associated with old
// skeleton chain only if it's not covered by the current
// skeleton range.
if s.progress.Subchains[1].Head < s.progress.Subchains[0].Tail {
log.Debug("Cleaning previous beacon sync state", "head", s.progress.Subchains[1].Head)
rawdb.DeleteSkeletonHeader(batch, s.progress.Subchains[1].Head)
}
// Drop the leftover skeleton chain since it's stale.
s.progress.Subchains = s.progress.Subchains[:1]
// If we have more than one header or more than one leftover chain,