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From "Jim Brennan (Jira)" <j...@apache.org>
Subject [jira] [Created] (YARN-10702) Add cluster metric for amount of CPU used by RM Event Processor
Date Wed, 17 Mar 2021 19:41:00 GMT
Jim Brennan created YARN-10702:
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             Summary: 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: Improvement
          Components: yarn
    Affects Versions: 2.10.1, 3.4.0
            Reporter: Jim Brennan
            Assignee: Jim Brennan


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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