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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-65) Reduce RM app memory footprint once app has completed
Date Mon, 25 Sep 2017 05:29:03 GMT

    [ https://issues.apache.org/jira/browse/YARN-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16178548#comment-16178548
] 

Rohith Sharma K S commented on YARN-65:
---------------------------------------

+1 lgtm, Failed test cases are known failures! I will commit it later of today if no more
objections

> 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
>            Assignee: Manikandan R
>         Attachments: YARN-65.001.patch, YARN-65.002.patch, YARN-65.003.patch, YARN-65.004.patch,
YARN-65.005.patch, YARN-65.006.patch, YARN-65.007.patch, YARN-65.008.patch, YARN-65.009.patch,
YARN-65.010.patch, YARN-65.011.patch, YARN-65.012.patch, YARN-65.013.patch, YARN-65.014.patch,
YARN-65.015.patch
>
>
> 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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