Daryn Sharp created YARN-494:
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Summary: RM should be able to hard stop a lingering app on a NM
Key: YARN-494
URL: https://issues.apache.org/jira/browse/YARN-494
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager, resourcemanager
Affects Versions: 2.0.0-alpha, 3.0.0, 0.23.3
Reporter: Daryn Sharp
It's possible for a NM to "leak" applications that the RM believes have
finished. This currently tends to happen when a lingering app jams in log
aggregation or misses the notification to begin aggregation.
Until aggregation completes, the NMs send app keepalive requests to the RM so
it continues renewing the app's tokens. This could be extend to allow the RM
to send a hard stop to a NM for an app that has been running for a configurable
interval of time after the app has finished.
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