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Posted to yarn-issues@hadoop.apache.org by "Qi Zhu (Jira)" <ji...@apache.org> on 2021/03/18 02:28:00 UTC
[jira] [Comment Edited] (YARN-10702) Add cluster metric for amount
of CPU used by RM Event Processor
[ https://issues.apache.org/jira/browse/YARN-10702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17303809#comment-17303809 ]
Qi Zhu edited comment on YARN-10702 at 3/18/21, 2:27 AM:
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Thanks [~Jim_Brennan] for this.
It makes sense to me, and it's a very good improvement for big cluster.
I added this to a sub task to event improvement YARN-10695 Event related improvement of YARN for better usage.
Thanks.
was (Author: zhuqi):
Thanks [~Jim_Brennan] for this.
It makes sense to me, and it's a very good improvement for big cluster.
> 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, 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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