dengziming commented on a change in pull request #10021:
URL: https://github.com/apache/kafka/pull/10021#discussion_r568656400
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File path: core/src/main/scala/kafka/raft/KafkaMetadataLog.scala
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@@ -173,13 +164,16 @@ final class KafkaMetadataLog private (
override def truncateToLatestSnapshot(): Boolean = {
val latestEpoch = log.latestEpoch.getOrElse(0)
- latestSnapshotId.asScala match {
+ latestSnapshotId().asScala match {
case Some(snapshotId) if (snapshotId.epoch > latestEpoch ||
(snapshotId.epoch == latestEpoch && snapshotId.offset >
endOffset().offset)) =>
// Truncate the log fully if the latest snapshot is greater than the
log end offset
log.truncateFullyAndStartAt(snapshotId.offset)
- oldestSnapshotId = latestSnapshotId
+ // Delete snapshot after truncating
+ val olderSnapshotIds = snapshotIds.headSet(snapshotId)
+ olderSnapshotIds.forEach(id =>
Snapshots.deleteSnapshotIfExists(log.dir.toPath, id))
+ snapshotIds.removeAll(olderSnapshotIds)
Review comment:
In fact, after `snapshotIds.removeAll(olderSnapshotIds)`, the element
in olderSnapshotIds is also removed.
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