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https://issues.apache.org/jira/browse/YARN-502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725929#comment-13725929
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Hudson commented on YARN-502:
-----------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #4193 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/4193/])
YARN-502. Fixed a state machine issue with RMNode inside ResourceManager which
was crashing scheduler. Contributed by Mayank Bansal. (vinodkv:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1509060)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeImpl.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMNodeTransitions.java
> RM crash with NPE on NODE_REMOVED event with FairScheduler
> ----------------------------------------------------------
>
> 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
> Fix For: 2.1.1-beta
>
> Attachments: YARN-502-trunk-1.patch, YARN-502-trunk-2.patch,
> YARN-502-trunk-3.patch
>
>
> 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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