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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