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https://issues.apache.org/jira/browse/YARN-10702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Brennan updated YARN-10702:
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Attachment: YARN-10702.003.patch
> Add cluster metric for amount of CPU used by RM Event Processor
> ---------------------------------------------------------------
>
> Key: YARN-10702
> URL: https://issues.apache.org/jira/browse/YARN-10702
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Affects Versions: 2.10.1, 3.4.0
> Reporter: Jim Brennan
> Assignee: Jim Brennan
> Priority: Minor
> Attachments: Scheduler-Busy.png, YARN-10702.001.patch,
> YARN-10702.002.patch, YARN-10702.003.patch, simon-scheduler-busy.png
>
>
> Add a cluster metric to track the cpu usage of the ResourceManager Event
> Processing thread. This lets us know when the critical path of the RM is
> running out of headroom.
> This feature was originally added for us internally by [~nroberts] and we've
> been running with it on production clusters for nearly four years.
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