[jira] [Created] (YARN-5566) client-side NM graceful decom doesn't trigger when jobs finish

["Robert Kanter (JIRA)" <ji...@apache.org>]

Robert Kanter created YARN-5566:
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             Summary: client-side NM graceful decom doesn't trigger when jobs finish
                 Key: YARN-5566
                 URL: https://issues.apache.org/jira/browse/YARN-5566
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: nodemanager
    Affects Versions: 2.8.0
            Reporter: Robert Kanter
            Assignee: Robert Kanter


I was testing the client-side NM graceful decommission and noticed that it was always waiting for the timeout, even if all jobs running on that node (or even the cluster) had already finished.

For example:
# JobA is running with at least one container on NodeA
# User runs client-side decom on NodeA at 5:00am with a timeout of 3 hours --> NodeA enters DECOMMISSIONING state
# JobA finishes at 6:00am and there are no other jobs running on NodeA
# User's client reaches the timeout at 8:00am, and forcibly decommissions NodeA

NodeA should have decommissioned at 6:00am.



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