hachikuji commented on a change in pull request #9590:
URL: https://github.com/apache/kafka/pull/9590#discussion_r610908966
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File path: core/src/main/scala/kafka/log/LogCleanerManager.scala
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@@ -601,6 +601,9 @@ private[log] object LogCleanerManager extends Logging {
// the active segment is always uncleanable
Option(log.activeSegment.baseOffset),
+ // we do not want to clean past the high watermark
+ Option(log.highWatermark),
Review comment:
In practice, we do not allow the log start offset to get ahead of the
high watermark, so I am not sure that is a real issue. Still, I cannot think of
a strong reason to allow cleaning above the high watermark, so maybe it is
simpler to prevent it.
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