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https://issues.apache.org/jira/browse/YARN-8016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16410631#comment-16410631
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Zian Chen commented on YARN-8016:
---------------------------------

Quickly investigated the failed case, not related to the latest patch. 

[~leftnoteasy] , [~yufeigu] , any thoughts or suggestions for the latest patch? 
Thanks!

> Refine PlacementRule interface and add a app-name queue mapping rule as an 
> example
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-8016
>                 URL: https://issues.apache.org/jira/browse/YARN-8016
>             Project: Hadoop YARN
>          Issue Type: Task
>            Reporter: Zian Chen
>            Assignee: Zian Chen
>            Priority: Major
>         Attachments: YARN-8016.001.patch, YARN-8016.002.patch, 
> YARN-8016.003.patch, YARN-8016.004.patch, YARN-8016.005.patch
>
>
> After YARN-3635/YARN-6689, PlacementRule becomes a common interface which can 
> be used by scheduler and can be dynamically updated by scheduler according to 
> configs. There're some other works. 
> - There's no way to initialize PlacementRule.
> - No example of PlacementRule except the user-group mapping one.
> This JIRA is targeted to refine PlacementRule interfaces and add another 
> PlacementRule example.



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