Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: mapreduce-issues@hadoop.apache.org
Date: Mon, 12 Dec 2011 05:38:30 +0000 (UTC)
From: "Karam Singh (Created) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: 
 <1818386336.506.1323668310852.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (MAPREDUCE-3530) Sometimes NODE_UPDATE to the
 scheduler throws NPE causes scheduling to stop
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

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


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}

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira