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https://issues.apache.org/jira/browse/KAFKA-7362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813990#comment-16813990
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Dhruvil Shah commented on KAFKA-7362:
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[~xiongqiwu] from my understanding, we could only have orphan partitions when
an offline broker comes back online, so doing this cleanup once on startup
should be sufficient. We could talk more about the implementation when you open
the PR for review. Thank you for working on this!
> enable kafka broker to remove orphan partitions automatically
> --------------------------------------------------------------
>
> Key: KAFKA-7362
> URL: https://issues.apache.org/jira/browse/KAFKA-7362
> Project: Kafka
> Issue Type: Improvement
> Components: core, log
> Reporter: xiongqi wu
> Assignee: xiongqi wu
> Priority: Major
>
> When partition reassignment removes topic partitions from a offline broker,
> those removed partitions become orphan partitions to the broker. When the
> offline broker comes back online, it is not able to clean up both data and
> folders that belong to orphan partitions. Log manager will scan all all dirs
> during startup, but the time based retention policy on a topic partition will
> not be kicked out until the broker is either a follower or a leader of the
> partition. In addition, we do not have logic to delete folders that belong
> to orphan partition today.
> Open this ticket to provide a mechanism (when enabled) to safely remove
> orphan partitions automatically.
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