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https://issues.apache.org/jira/browse/YARN-7159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16202394#comment-16202394
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Manikandan R commented on YARN-7159:
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[~wangda] [~sunilg] Thanks for giving me an opportunity to contribute to this
JIRA.
Had a offline discussion with [~sunilg] on the approaches. Attached a patch to
convert resource value if its units is different from the corresponding
resource units at RM side as part of resource object creation so that units
conversions happening at several other places can be removed to improve
performance.
> Normalize unit of resource objects in RM and avoid to do unit conversion in
> critical path
> -----------------------------------------------------------------------------------------
>
> Key: YARN-7159
> URL: https://issues.apache.org/jira/browse/YARN-7159
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, resourcemanager
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Priority: Critical
> Attachments: YARN-7159.001.patch
>
>
> Currently resource conversion could happen in critical code path when
> different unit is specified by client. This could impact performance and
> throughput of RM a lot. We should do unit normalization when resource passed
> to RM and avoid expensive unit conversion every time.
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