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Date: Tue, 18 Oct 2016 22:50:59 +0000 (UTC)
From: "Daniel Templeton (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
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Subject: [jira] [Commented] (YARN-4911) Bad placement policy in
 FairScheduler causes the RM to crash
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archived-at: Tue, 18 Oct 2016 22:51:01 -0000


    [ https://issues.apache.org/jira/browse/YARN-4911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15586926#comment-15586926 ] 

Daniel Templeton commented on YARN-4911:
----------------------------------------

Works for me.  +1 (non-binding)

> Bad placement policy in FairScheduler causes the RM to crash
> ------------------------------------------------------------
>
>                 Key: YARN-4911
>                 URL: https://issues.apache.org/jira/browse/YARN-4911
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: fairscheduler
>            Reporter: Ray Chiang
>            Assignee: Ray Chiang
>              Labels: supportability
>         Attachments: YARN-4911.001.patch, YARN-4911.002.patch, YARN-4911.003.patch, YARN-4911.004.patch
>
>
> When you have a fair-scheduler.xml with the rule:
>   <queuePlacementPolicy>
>     <rule name="default" queue="okay1" create="false" />
>   </queuePlacementPolicy>
> and the queue okay1 doesn't exist, the following exception occurs in the RM:
> 2016-04-01 16:56:33,383 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in handling event type APP_ADDED to the scheduler
> java.lang.IllegalStateException: Should have applied a rule before reaching here
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueuePlacementPolicy.assignAppToQueue(QueuePlacementPolicy.java:173)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.assignToQueue(FairScheduler.java:728)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.addApplication(FairScheduler.java:634)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1224)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:112)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:691)
>         at java.lang.Thread.run(Thread.java:745)
> which causes the RM to crash.



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