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https://issues.apache.org/jira/browse/YARN-9173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16735557#comment-16735557
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Weiwei Yang commented on YARN-9173:
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[~wilfreds] I met some conflicts when cherry-pick this to branch-3.1, could you
pls take a look? If necessary, pls upload a patch for branch-3.1. I think we
need to fix for all major branches.
> 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
>
> Attachments: 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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