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https://issues.apache.org/jira/browse/KAFKA-6902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16475642#comment-16475642
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Hugh O'Brien commented on KAFKA-6902:
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It would also be useful for the broker to highlight alien directories in its
data folder on startup.
> During replica reassignment if source broker is down the partition directory
> may not be removed from broker log.dirs
> --------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-6902
> URL: https://issues.apache.org/jira/browse/KAFKA-6902
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 0.11.0.2
> Reporter: Koelli Mungee
> Priority: Minor
>
> During replica reassignment if source broker is down the partition directory
> may not be removed from the source broker's log.dirs location. This can lead
> to the partition directory still being there with zero length log data. This
> in turn leads to this partition showing up in JMX metric for the original
> broker: kafka.log.LogEndOffset even though this partition is no longer a part
> of the ISR list in that broker.
> It would be good to have this cleaned up so the metric can be accurate at all
> times.
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