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Posted to yarn-issues@hadoop.apache.org by "Tao Yang (JIRA)" <ji...@apache.org> on 2017/08/13 02:21:00 UTC

[jira] [Created] (YARN-7003) DRAINING state of queues can't be recovered after RM restart

Tao Yang created YARN-7003:
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             Summary: DRAINING state of queues can't be recovered after RM restart
                 Key: YARN-7003
                 URL: https://issues.apache.org/jira/browse/YARN-7003
             Project: Hadoop YARN
          Issue Type: Bug
          Components: capacityscheduler
    Affects Versions: 3.0.0-alpha3
            Reporter: Tao Yang


DRAINING state is a temporary state in RM memory, when queue state is set to be STOPPED but there are still some pending or active apps in it, the queue state will be changed to DRAINING instead of STOPPED after refreshing queues. We've encountered the problem that the state of this queue will aways be STOPPED after RM restarted, so that it can be removed at any time and leave some apps in a non-existing queue.
To fix this problem, we could recover DRAINING state in the recovery process of pending/active apps. I will upload a patch with test case later for review.



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