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https://issues.apache.org/jira/browse/YARN-9173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16735533#comment-16735533
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Weiwei Yang edited comment on YARN-9173 at 1/7/19 7:31 AM:
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Thanks [~yoelee], [~wilfreds], patch also looks good to me. The UT failure
seems not related, I fails even without the patch.
+1, I will commit this today.
BTW, we will need another patch for branch-2 in YARN-8833 later, it needs to
accommodate the fix in this patch as well.
Thanks
was (Author: cheersyang):
Thanks [~yoelee], [~wilfreds], patch also looks good to me.
+1, I will commit this today.
BTW, we will need another patch for branch-2 in YARN-8833 later, it needs to
accommodate the fix in this patch as well.
Thanks
> 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
> 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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