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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Moved] (YARN-65) Reduce RM app memory footprint once app has completed
Date Thu, 30 Aug 2012 20:03:09 GMT

     [ https://issues.apache.org/jira/browse/YARN-65?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli moved MAPREDUCE-3987 to YARN-65:
--------------------------------------------------------

          Component/s:     (was: resourcemanager)
                           (was: mrv2)
                       resourcemanager
    Affects Version/s:     (was: 0.23.1)
                       0.23.3
                  Key: YARN-65  (was: MAPREDUCE-3987)
              Project: Hadoop YARN  (was: Hadoop Map/Reduce)
    
> Reduce RM app memory footprint once app has completed
> -----------------------------------------------------
>
>                 Key: YARN-65
>                 URL: https://issues.apache.org/jira/browse/YARN-65
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 0.23.3
>            Reporter: Jason Lowe
>
> The ResourceManager holds onto a configurable number of completed applications (yarn.resource.max-completed-applications,
defaults to 10000), and the memory footprint of these completed applications can be significant.
 For example, the {{submissionContext}} in RMAppImpl contains references to protocolbuffer
objects and other items that probably aren't necessary to keep around once the application
has completed.  We could significantly reduce the memory footprint of the RM by releasing
objects that are no longer necessary once an application completes.

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