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https://issues.apache.org/jira/browse/YARN-3937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sunil G updated YARN-3937:
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Attachment: 0003-YARN-3937.patch
> Introducing REMOVE_CONTAINER_FROM_PREEMPTION event to notify Scheduler and AM
> when a container is no longer to be preempted
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-3937
> URL: https://issues.apache.org/jira/browse/YARN-3937
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacityscheduler
> Affects Versions: 2.7.1
> Reporter: Sunil G
> Assignee: Sunil G
> Attachments: 0001-YARN-3937.patch, 0002-YARN-3937.patch,
> 0003-YARN-3937.patch
>
>
> As discussed in YARN-3784, there are scenarios like few other applications
> released containers or same application has revoked its resource requests. In
> these cases, we may not have to preempt a container which would have been
> marked for preemption earlier.
> Introduce a new event to remove such containers if present in the
> to-be-preempted list of scheduler or inform AM about such a scenario.
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