Sean Quah created KAFKA-21196:
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Summary: 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
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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