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From "Jun Gong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3998) Add retry-times to let NM re-launch container when it fails to run
Date Thu, 30 Jul 2015 15:01:04 GMT
Jun Gong created YARN-3998:
------------------------------

             Summary: Add retry-times to let NM re-launch container when it fails to run
                 Key: YARN-3998
                 URL: https://issues.apache.org/jira/browse/YARN-3998
             Project: Hadoop YARN
          Issue Type: New Feature
            Reporter: Jun Gong
            Assignee: Jun Gong


I'd like to add a field(retry-times) in ContainerLaunchContext. When AM launches containers,
it could specify the value. Then NM will re-launch the container 'retry-times' times when
it fails to run(e.g.exit code is not 0). 

It will save a lot of time. It avoids container localization. RM does not need to re-schedule
the container. And local files in container's working directory will be left for re-use.(If
container have downloaded some big files, it does not need to re-download them when running
again.) 

We find it is useful in systems like Storm.



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