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https://issues.apache.org/jira/browse/YARN-6163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15869392#comment-15869392
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ASF GitHub Bot commented on YARN-6163:
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Github user kambatla closed the pull request at:
https://github.com/apache/hadoop/pull/192
> FS Preemption is a trickle for severely starved applications
> ------------------------------------------------------------
>
> Key: YARN-6163
> URL: https://issues.apache.org/jira/browse/YARN-6163
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Affects Versions: 2.9.0
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Fix For: 2.9.0
>
> Attachments: YARN-6163.004.patch, YARN-6163.005.patch,
> YARN-6163.006.patch, yarn-6163-1.patch, yarn-6163-2.patch
>
>
> With current logic, only one RR is considered per each instance of marking an
> application starved. This marking happens only on the update call that runs
> every 500ms. Due to this, an application that is severely starved takes
> forever to reach fairshare based on preemptions.
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