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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2340) NPE thrown when RM restart after queue is STOPPED. There after RM can not recovery application's and remain in standby
Date Tue, 23 Dec 2014 00:23:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14256362#comment-14256362
] 

Jian He commented on YARN-2340:
-------------------------------

looks good, +1

> NPE thrown when RM restart after queue is STOPPED. There after RM can not recovery application's
and remain in standby
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2340
>                 URL: https://issues.apache.org/jira/browse/YARN-2340
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.4.1
>         Environment: Capacityscheduler with Queue a, b
>            Reporter: Nishan Shetty
>            Assignee: Rohith
>            Priority: Critical
>         Attachments: 0001-YARN-2340.patch
>
>
> While job is in progress make Queue  state as STOPPED and then restart RM 
> Observe that standby RM fails to come up as acive throwing below NPE
> 2014-07-23 18:43:24,432 INFO org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl:
appattempt_1406116264351_0014_000002 State change from NEW to SUBMITTED
> 2014-07-23 18:43:24,433 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Error in handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
>  at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:568)
>  at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:916)
>  at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:101)
>  at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:602)
>  at java.lang.Thread.run(Thread.java:662)
> 2014-07-23 18:43:24,434 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Exiting, bbye..



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