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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-502) RM crash with NPE on NODE_REMOVED event
Date Tue, 11 Jun 2013 19:00:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13680545#comment-13680545

Hadoop QA commented on YARN-502:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/1192//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1192//console

This message is automatically generated.
> 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
>         Attachments: YARN-502-trunk-1.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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