Jason Lowe created YARN-2331:
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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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