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From "Anubhav Dhoot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3675) FairScheduler: RM quits when node removal races with continousscheduling on the same node
Date Thu, 21 May 2015 01:27:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-3675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14553482#comment-14553482
] 

Anubhav Dhoot commented on YARN-3675:
-------------------------------------

Failure does not repro locally for me and seems unrelated

> FairScheduler: RM quits when node removal races with continousscheduling on the same
node
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-3675
>                 URL: https://issues.apache.org/jira/browse/YARN-3675
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>         Attachments: YARN-3675.001.patch, YARN-3675.002.patch, YARN-3675.003.patch
>
>
> With continuous scheduling, scheduling can be done on a node thats just removed causing
errors like below.
> {noformat}
> 12:28:53.782 AM FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager
> Error in handling event type APP_ATTEMPT_REMOVED to the scheduler
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt.unreserve(FSAppAttempt.java:469)
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.completedContainer(FairScheduler.java:815)
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.removeApplicationAttempt(FairScheduler.java:763)
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1217)
> 	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:111)
> 	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:684)
> 	at java.lang.Thread.run(Thread.java:745)
> 12:28:53.783 AM	 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager Exiting,
bbye..
> {noformat}



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