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https://issues.apache.org/jira/browse/YARN-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181152#comment-16181152
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Manikandan R commented on YARN-65:
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[~rohithsharma] [~Naganarasimha] Thanks for your reviews and commit
> 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
> Fix For: 2.9.0, 3.0.0-beta1, 3.1.0
>
> 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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