[jira] [Updated] (MAPREDUCE-3530) Sometimes NODE_UPDATE to the scheduler throws NPE causes scheduling to stop

["Mahadev konar (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mahadev konar updated MAPREDUCE-3530:
-------------------------------------

    Priority: Blocker  (was: Major)
    
> Sometimes NODE_UPDATE to the scheduler throws NPE causes scheduling to stop
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3530
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3530
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, resourcemanager, scheduler
>            Reporter: Karam Singh
>            Priority: Blocker
>
> Sometimes NODE_UPDATE to the scheduler throws NPE causes scheduling to stop but ResourceManager keeps on running.
> I have been observing intermitently for last 3 weeks.
> But with latest svn code. I tried to run sort twice and both times Job got stuck due to NPE.
> {code}
> java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApp.containerLaunchedOnNode(SchedulerApp.java:181)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.containerLaunchedOnNode(CapacityScheduler.java:596)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.nodeUpdate(CapacityScheduler.java:539)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:617)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:77)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:294)
>         at java.lang.Thread.run(Thread.java:619)
> {code}

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