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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2331) Distinguish shutdown during supervision vs. shutdown for rolling upgrade
Date Tue, 22 Jul 2014 14:34:38 GMT
Jason Lowe created YARN-2331:
--------------------------------

             Summary: Distinguish shutdown during supervision vs. shutdown for rolling upgrade
                 Key: YARN-2331
                 URL: https://issues.apache.org/jira/browse/YARN-2331
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: nodemanager
    Affects Versions: 2.6.0
            Reporter: Jason Lowe


When the NM is shutting down with restart support enabled there are scenarios we'd like to
distinguish and behave accordingly:

# The NM is running under supervision.  In that case containers should be preserved so the
automatic restart can recover them.
# The NM is not running under supervision and a rolling upgrade is not being performed.  In
that case the shutdown should kill all containers since it is unlikely the NM will be restarted
in a timely manner to recover them.
# The NM is not running under supervision and a rolling upgrade is being performed.  In that
case the shutdown should not kill all containers since a restart is imminent due to the rolling
upgrade and the containers will be recovered.



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