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https://issues.apache.org/jira/browse/YARN-5333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15405503#comment-15405503
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Jun Gong commented on YARN-5333:
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Hi [~jianhe], I think the
[comment|https://issues.apache.org/jira/browse/YARN-3893?focusedCommentId=14708471&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14708471]
in YARN-3893 makes sense. How about it?
{quote}
If refreshAll() fails, BOTH RM will be in ACTIVE state as per this defect.
Continuing RM services with invalid configuration does not good idea. Moreover
invalid configurations should be notified to user immediately. So it would be
better to make use of fail-fast configuration to exit the RM JVM. If this
configuration is set to false , then call rm.handleTransitionToStandBy.
{quote}
> 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
>
>
> 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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