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https://issues.apache.org/jira/browse/YARN-8509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16567405#comment-16567405
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Eric Payne commented on YARN-8509:
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I am very sorry for coming in late here. Please give me another day to review
these changes.
Maybe you have already covered this, but won't this change cause unnecessary
preemption if pending > user limit
> Fix UserLimit calculation for preemption to balance scenario after queue
> satisfied
> ------------------------------------------------------------------------------------
>
> Key: YARN-8509
> URL: https://issues.apache.org/jira/browse/YARN-8509
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Zian Chen
> Assignee: Zian Chen
> Priority: Major
> Attachments: YARN-8509.001.patch, YARN-8509.002.patch,
> YARN-8509.003.patch
>
>
> In LeafQueue#getTotalPendingResourcesConsideringUserLimit, we calculate total
> pending resource based on user-limit percent and user-limit factor which will
> cap pending resource for each user to the minimum of user-limit pending and
> actual pending. This will prevent queue from taking more pending resource to
> achieve queue balance after all queue satisfied with its ideal allocation.
>
> We need to change the logic to let queue pending can go beyond userlimit.
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