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https://issues.apache.org/jira/browse/KAFKA-21196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18121498#comment-18121498
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sanghyeok An commented on KAFKA-21196:
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[~squah-confluent]
Hi! Are you planning to work on this issue?
If not, may I take a look at it?
> Release memory held by CoordinatorExecutorImpl tasks when cancelled
> -------------------------------------------------------------------
>
> Key: KAFKA-21196
> URL: https://issues.apache.org/jira/browse/KAFKA-21196
> Project: Kafka
> Issue Type: Improvement
> Components: group-coordinator
> Reporter: Sean Quah
> Priority: Major
>
> When CoordinatorExecutorImpl tasks are cancelled, they remain in the executor
> queue or the event processor queue. When the group coordinator is overloaded,
> these queues can grow large and retain data structures that are no longer
> needed.
> One way we can free the memory is to box the callbacks held by tasks and free
> them on cancellation.
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