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https://issues.apache.org/jira/browse/YARN-8984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677917#comment-16677917
 ] 

Weiwei Yang commented on YARN-8984:
-----------------------------------

Hi [~fly_in_gis]

I suppose you should have set to use "scheduler" handler,

+ conf.set(YarnConfiguration.RM_PLACEMENT_CONSTRAINTS_HANDLER, "scheduler");

then I am not sure what is the difference to run it in 
\{{TestAMRMClientPlacementConstraints}} than a separate class. Could u pls take 
a look? Thanks

> AMRMClient#OutstandingSchedRequests leaks when AllocationTags is null or empty
> ------------------------------------------------------------------------------
>
>                 Key: YARN-8984
>                 URL: https://issues.apache.org/jira/browse/YARN-8984
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Yang Wang
>            Assignee: Yang Wang
>            Priority: Critical
>         Attachments: YARN-8984-001.patch, YARN-8984-002.patch
>
>
> In AMRMClient, outstandingSchedRequests should be removed or decreased when 
> container allocated. However, it could not work when allocation tag is null 
> or empty.



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