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https://issues.apache.org/jira/browse/YARN-5195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sandflee updated YARN-5195:
---------------------------
Attachment: YARN-5195.01.patch
> RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event
> when async-scheduling enabled in CapacityScheduler
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-5195
> URL: https://issues.apache.org/jira/browse/YARN-5195
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.7.2
> Reporter: Karam Singh
> Assignee: sandflee
> Attachments: YARN-5195.01.patch
>
>
> While running gridmix experiments one time came across incident where RM went
> down with following exception
> {noformat}
> 2016-05-28 15:45:24,459 [ResourceManager Event Processor] 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.capacity.LeafQueue.completedContainer(LeafQueue.java:1282)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.completedContainerInternal(CapacityScheduler.java:1469)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completedContainer(AbstractYarnScheduler.java:497)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.doneApplicationAttempt(CapacityScheduler.java:860)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1319)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:127)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:704)
> at java.lang.Thread.run(Thread.java:745)
> 2016-05-28 15:45:24,460 [ApplicationMasterLauncher #49] INFO
> org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher: Cleaning
> master appattempt_1464449118385_0006_000001
> 2016-05-28 15:45:24,460 [ResourceManager Event Processor] INFO
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye..
> {noformat}
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