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https://issues.apache.org/jira/browse/YARN-6152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15856428#comment-15856428
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Jonathan Hung commented on YARN-6152:
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Great, thanks [~eepayne] and [~sunilg]!
> Used queue percentage not accurate in UI for 2.7 and below when using
> DominantResourceCalculator
> ------------------------------------------------------------------------------------------------
>
> Key: YARN-6152
> URL: https://issues.apache.org/jira/browse/YARN-6152
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.7.3
> Reporter: Jonathan Hung
> Assignee: Jonathan Hung
> Fix For: 2.7.4
>
> Attachments: dominantRC.png, YARN-6152-branch-2.7.001.patch,
> YARN-6152-branch-2.7.002.patch
>
>
> YARN-4751 adds the {{getUsedCapacity}} and {{getAbsoluteUsedCapacity}}
> methods to {{AbstractCSQueue}} which is used to display queue usage in UI for
> branch-2.7 and below. However if there is more than one partition in the
> cluster, with different dominant resources, then queue usage may not be
> displayed as expected.
> Contrived example: Default partition has <90GB, 10vcores>, and "test"
> partition has <10GB, 90vcores>. {{root}} queue in default partition uses
> <30GB, 10vcores>. Here we expect queue usage to be 100 since it is using all
> vcores in default partition. But the displayed usage will be
> (30GB/100GB)/(90GB/100GB) = 33%.
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