[jira] [Assigned] (KAFKA-9265) kafka.log.Log instances are leaking on log delete

["Vikas Singh (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-9265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vikas Singh reassigned KAFKA-9265:
----------------------------------

    Assignee: Vikas Singh

> kafka.log.Log instances are leaking on log delete
> -------------------------------------------------
>
>                 Key: KAFKA-9265
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9265
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Vikas Singh
>            Assignee: Vikas Singh
>            Priority: Major
>
> KAFKA-8448 fixes problem with similar leak. The {{Log}} objects are being held in {{ScheduledExecutor}} {{PeriodicProducerExpirationCheck}} callback. The fix in KAFKA-8448 was to change the policy of {{ScheduledExecutor}} to remove the scheduled task when it gets canceled (by calling {{setRemoveOnCancelPolicy(true)}}).
> This works when a log is closed using {{close()}} method. But when a log is deleted either when the topic gets deleted or when the rebalancing operation moves the replica away from broker, the {{delete()}} operation is invoked. {{Log.delete()}} doesn't close the pending scheduled task and that leaks Log instance.
> Fix is to close the scheduled task in the {{Log.delete()}} method too.



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