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https://issues.apache.org/jira/browse/YARN-9173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16736780#comment-16736780
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Wilfred Spiegelenburg commented on YARN-9173:
---------------------------------------------
Sorry for the typo in the patch name, I did not realise it until I read the QA
comment and you had already fixed it.
> FairShare calculation broken for large values after YARN-8833
> -------------------------------------------------------------
>
> Key: YARN-9173
> URL: https://issues.apache.org/jira/browse/YARN-9173
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 3.3.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
> Priority: Major
> Fix For: 3.3.0, 3.2.1, 3.1.3
>
> Attachments: YARN-9137-branch-3.1.001.patch,
> YARN-9137-branch3.1.001.patch, YARN-9173.001.patch, YARN-9173.002.patch
>
>
> After the fix for the infinite loop in YARN-8833 we now get the wrong values
> back for fairshare calculations under certain circumstances. The current
> implementation works when the total resource is smaller than Integer.MAXVALUE.
> When the total resource goes above that value the number of iterations is not
> enough to converge to the correct value.
> The new test {{testResourceUsedWithWeightToResourceRatio()}} only checks that
> the calculation does not hang but does not check the outcome of the
> calculation.
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