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https://issues.apache.org/jira/browse/YARN-10451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208794#comment-17208794
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Eric Payne commented on YARN-10451:
-----------------------------------

Thanks for the review, [~Jim_Brennan].

bq. Why did you need the test to use dominant resource calculator?  Was the 
test not failing in trunk unless that was defined?

Yes. YARN-7789 added a check in the CapacityScheduler#initScheduler that 
prevents the addition of a third resource (GPU, in this case) if 
DefaultResourceCalculator is used. This was in 3.x but not 2.x.

Also, I think I will need a branch-2.10 patch because the test utils are 
different.

> RM (v1) UI NodesPage can NPE when yarn.io/gpu resource type is defined.
> -----------------------------------------------------------------------
>
>                 Key: YARN-10451
>                 URL: https://issues.apache.org/jira/browse/YARN-10451
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>            Priority: Major
>         Attachments: YARN-10451.001.patch, YARN-10451.002.patch, 
> YARN-10451.003.patch
>
>
> The NodesPage in the RM (v1) UI will NPE when the {{yarn.resource-types}} 
> property defines {{yarn.io}}.



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