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https://issues.apache.org/jira/browse/YARN-6439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15956054#comment-15956054
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Carlo Curino commented on YARN-6439:
------------------------------------

The v0 patch was failing in FairScheduler version of tests, as in FS we do not 
pre-create the defaultQueue. I believe in FS we do not ever create the default 
queue. This is implicitly done when an application is submitted to the plan 
queue without a reservationId. Hence in the tests I checked differently the 
behavior.

> Fix ReservationSystem creation of default ReservationQueue
> ----------------------------------------------------------
>
>                 Key: YARN-6439
>                 URL: https://issues.apache.org/jira/browse/YARN-6439
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-6439.v0.patch, YARN-6439.v1.patch
>
>
> The ReservationSystem does not create the default ReservationQueue till the 
> PlanFollower runs the first time. This is problematic for SLS runs, and might 
> show up in some other corner case. Inlining creation of the queue as part of 
> PlanQueue creation.



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