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From "kyungwan nam (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-8095) Allow disable non-exclusive allocation
Date Fri, 30 Mar 2018 07:55:00 GMT
kyungwan nam created YARN-8095:

             Summary: Allow disable non-exclusive allocation
                 Key: YARN-8095
                 URL: https://issues.apache.org/jira/browse/YARN-8095
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: capacity scheduler
    Affects Versions: 2.8.3
            Reporter: kyungwan nam

We have 'longlived' Queue, which is used for long-lived apps.
In situation where default Partition resources are not enough, containers for long-lived app
can be allocated to sharable Partition.
Since then, containers for long-lived app can be easily preempted.
We don’t want long-lived apps to be killed abruptly.

Currently, non-exclusive allocation can happen regardless of whether the queue is accessible
to the sharable Partition.
It would be good if non-exclusive allocation can be disabled at queue level.

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