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https://issues.apache.org/jira/browse/YARN-502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mayank Bansal reassigned YARN-502:
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Assignee: Mayank Bansal
> RM crash with NPE on NODE_REMOVED event
> ---------------------------------------
>
> Key: YARN-502
> URL: https://issues.apache.org/jira/browse/YARN-502
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 2.0.3-alpha
> Reporter: Lohit Vijayarenu
> Assignee: Mayank Bansal
>
> While running some test and adding/removing nodes, we see RM crashed with the
> below exception. We are testing with fair scheduler and running
> hadoop-2.0.3-alpha
> {noformat}
> 2013-03-22 18:54:27,015 INFO
> org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl: Deactivating
> Node YYYY:55680 as it is now LOST
> 2013-03-22 18:54:27,015 INFO
> org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl: YYYY:55680
> Node Transitioned from UNHEALTHY to LOST
> 2013-03-22 18:54:27,015 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in
> handling event type NODE_REMOVED to the scheduler
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.removeNode(FairScheduler.java:619)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:856)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:98)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:375)
> at java.lang.Thread.run(Thread.java:662)
> 2013-03-22 18:54:27,016 INFO
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye..
> 2013-03-22 18:54:27,020 INFO org.mortbay.log: Stopped
> SelectChannelConnector@XXXX:50030
> {noformat}
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