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From "Jun Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5333) Some recovered apps are put into default queue when RM HA
Date Thu, 04 Aug 2016 08:06:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15407374#comment-15407374
] 

Jun Gong commented on YARN-5333:
--------------------------------

Yes, I read comments in YARN-3893 again, I agree with it too. I'll update the patch soon.

> Some recovered apps are put into default queue when RM HA
> ---------------------------------------------------------
>
>                 Key: YARN-5333
>                 URL: https://issues.apache.org/jira/browse/YARN-5333
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jun Gong
>            Assignee: Jun Gong
>         Attachments: YARN-5333.01.patch, YARN-5333.02.patch, YARN-5333.03.patch, YARN-5333.04.patch,
YARN-5333.05.patch, YARN-5333.06.patch, YARN-5333.07.patch, YARN-5333.08.patch, YARN-5333.09.patch
>
>
> Enable RM HA and use FairScheduler, {{yarn.scheduler.fair.allow-undeclared-pools}} is
set to false, {{yarn.scheduler.fair.user-as-default-queue}} is set to false.
> Reproduce steps:
> 1. Start two RMs.
> 2. After RMs are running, change both RM's file {{etc/hadoop/fair-scheduler.xml}}, then
add some queues.
> 3. Submit some apps to the new added queues.
> 4. Stop the active RM, then the standby RM will transit to active and recover apps.
> However the new active RM will put recovered apps into default queue because it might
have not loaded the new {{fair-scheduler.xml}}. We need call {{initScheduler}} before start
active services or bring {{refreshAll()}} in front of {{rm.transitionToActive()}}. *It seems
it is also important for other scheduler*.



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