Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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0.23.3
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None
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Reviewed
Description
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.
Attachments
Attachments
Issue Links
- breaks
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YARN-7786 NullPointerException while launching ApplicationMaster
- Resolved
- is duplicated by
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YARN-6524 Avoid storing unnecessary information in the Memory for the finished apps
- Resolved
- requires
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YARN-6982 Potential issue on setting AMContainerSpec#tokenConf to null before app is completed
- Resolved