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https://issues.apache.org/jira/browse/MAPREDUCE-3987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Eagles reassigned MAPREDUCE-3987:
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Assignee: (was: Jonathan Eagles)
> Reduce RM app memory footprint once app has completed
> -----------------------------------------------------
>
> Key: MAPREDUCE-3987
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3987
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2, resourcemanager
> Affects Versions: 0.23.1
> 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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