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Persists Term in the (bbolt) Backend.

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Additional layer of protection, that allows to validate whether we
start replaying log not only from the proper 'index', but also of the
right 'term'.
This commit is contained in:
Piotr Tabor
2021-05-13 21:02:02 +02:00
parent e44fb40be5
commit ab586cd463
12 changed files with 89 additions and 53 deletions
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2
server/etcdserver/backend.go
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@@ -99,7 +99,7 @@ func openBackend(cfg config.ServerConfig, hooks backend.Hooks) backend.Backend {
func recoverSnapshotBackend(cfg config.ServerConfig, oldbe backend.Backend, snapshot raftpb.Snapshot, beExist bool, hooks backend.Hooks) (backend.Backend, error) {
consistentIndex := uint64(0)
if beExist {
consistentIndex = cindex.ReadConsistentIndex(oldbe.BatchTx())
consistentIndex, _ = cindex.ReadConsistentIndex(oldbe.BatchTx())
}
if snapshot.Metadata.Index <= consistentIndex {
return oldbe, nil