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https://issues.apache.org/jira/browse/YARN-2162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196874#comment-16196874
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Daniel Templeton commented on YARN-2162:
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Fixed in trunk, branch-3.0, and branch-2 with an addendum patch.
> add ability in Fair Scheduler to optionally configure maxResources in terms
> of percentage
> -----------------------------------------------------------------------------------------
>
> Key: YARN-2162
> URL: https://issues.apache.org/jira/browse/YARN-2162
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler, scheduler
> Reporter: Ashwin Shankar
> Assignee: Yufei Gu
> Labels: scheduler
> Fix For: 2.9.0, 3.0.0, 3.1.0
>
> Attachments: YARN-2162.001.patch, YARN-2162.002.patch,
> YARN-2162.003.patch, YARN-2162.004.patch, YARN-2162.005.patch,
> YARN-2162.006.patch, YARN-2162.007.patch, YARN-2162.008.patch,
> YARN-2162.branch-2.010.patch, YARN-2162.branch-3.0.009.patch,
> test-400nm-200app-2k_NODE_UPDATE.timecost.svg
>
>
> minResources and maxResources in fair scheduler configs are expressed in
> terms of absolute numbers X mb, Y vcores.
> As a result, when we expand or shrink our hadoop cluster, we need to
> recalculate and change minResources/maxResources accordingly, which is pretty
> inconvenient.
> We can circumvent this problem if we can optionally configure these
> properties in terms of percentage of cluster capacity.
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