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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2018/11/16 18:13:00 UTC
[jira] [Updated] (YARN-8509) Total pending resource calculation in
preemption should use user-limit factor instead of
minimum-user-limit-percent
[ https://issues.apache.org/jira/browse/YARN-8509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wangda Tan updated YARN-8509:
-----------------------------
Target Version/s: 3.2.0, 3.1.3 (was: 3.2.0, 3.1.2)
> Total pending resource calculation in preemption should use user-limit factor instead of minimum-user-limit-percent
> -------------------------------------------------------------------------------------------------------------------
>
> 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
> Labels: capacityscheduler
> Attachments: YARN-8509.001.patch, YARN-8509.002.patch, YARN-8509.003.patch, YARN-8509.004.patch, YARN-8509.005.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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