Jason Lowe created YARN-4334:
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Summary: Ability to avoid ResourceManager recovery if state store
is "too old"
Key: YARN-4334
URL: https://issues.apache.org/jira/browse/YARN-4334
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Reporter: Jason Lowe
There are times when a ResourceManager has been down long enough that
ApplicationMasters and potentially external client-side monitoring mechanisms
have given up completely. If the ResourceManager starts back up and tries to
recover we can get into situations where the RM launches new application
attempts for the AMs that gave up, but then the client _also_ launches another
instance of the app because it assumed everything was dead.
It would be nice if the RM could be optionally configured to avoid trying to
recover if the state store was "too old." The RM would come up without any
applications recovered, but we would avoid a double-submission situation.
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