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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4157) ResourceManager should not kill apps that are well behaved
Date Tue, 17 Jul 2012 21:16:34 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated MAPREDUCE-4157:
----------------------------------

    Target Version/s: 2.2.0-alpha  (was: 2.0.0-alpha)
              Status: Open  (was: Patch Available)

Will do. Looks like the merge will be more interesting than usual due to the addition of unmanaged
AMs from MAPREDUCE-4427.
                
> ResourceManager should not kill apps that are well behaved
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-4157
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4157
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 2.0.0-alpha
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>         Attachments: MAPREDUCE-4157.patch, MAPREDUCE-4157.patch
>
>
> Currently when the ApplicationMaster unregisters with the ResourceManager, the RM kills
(via the NMs) all the active containers for an application.  This introduces a race where
the AM may be trying to clean up and may not finish before it is killed.  The RM should give
the AM a chance to exit cleanly on its own rather than always race with a pending kill on
shutdown.

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