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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2793) YARN service containers to support different memory limit policies
Date Sat, 01 Nov 2014 11:12:34 GMT
Steve Loughran created YARN-2793:
------------------------------------

             Summary: YARN service containers to support different memory limit policies
                 Key: YARN-2793
                 URL: https://issues.apache.org/jira/browse/YARN-2793
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: nodemanager
            Reporter: Steve Loughran


Service containers may have different memory policies from applications. Specifically, it
may be more important to keep the container running if its memory goes over allocated, rather
than killing it. 

If the memory over-use could be detected, the AM could then make an attempt to request more
resources for that container, so increasing its allocation. And, if that fails, shutting down
the node cleanly. As it is, a killed container looks like a failure to the AM, which runs
the risk of concluding that the app and/or host is in trouble, when it is merely the memory
requirement is too low



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