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https://issues.apache.org/jira/browse/KAFKA-2160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jun Rao updated KAFKA-2160:
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Reviewer: Jun Rao
> DelayedOperationPurgatory should remove the pair in watchersForKey with empty
> watchers list
> -------------------------------------------------------------------------------------------
>
> Key: KAFKA-2160
> URL: https://issues.apache.org/jira/browse/KAFKA-2160
> Project: Kafka
> Issue Type: Bug
> Reporter: Guozhang Wang
> Assignee: Guozhang Wang
> Attachments: KAFKA-2160.patch, KAFKA-2160_2015-04-30_15:20:14.patch
>
>
> With purgatory usage in consumer coordinator, it will be common that watcher
> lists are very short and live only for a short time. So we'd better clean
> them from the watchersForKey Pool once the list become empty in
> checkAndComplete() calls.
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