Hadoop QA commented on YARN-2823:

{color:green}+1 overall{color}.  Here are the results of testing the latest 
  against trunk revision 75b820c.

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

    {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}.  There were no new javadoc warning messages.

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

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 2.0.3) 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 

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

Test results: 
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5760//console

This message is automatically generated.

> NullPointerException in RM HA enabled 3-node cluster
> ----------------------------------------------------
>                 Key: YARN-2823
>                 URL: https://issues.apache.org/jira/browse/YARN-2823
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Gour Saha
>            Assignee: Jian He
>         Attachments: YARN-2823.1.patch, logs_with_NPE_in_RM.zip
> Branch:
> 2.6.0
> Environment: 
> A 3-node cluster with RM HA enabled. The HA setup went pretty smooth (used 
> Ambari) and then installed HBase using Slider. After some time the RMs went 
> down and would not come back up anymore. Following is the NPE we see in both 
> the RM logs.
> {noformat}
> 2014-09-16 01:36:28,037 FATAL resourcemanager.ResourceManager 
> (ResourceManager.java:run(612)) - Error in handling event type 
> APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt.transferStateFromPreviousAttempt(SchedulerApplicationAttempt.java:530)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:678)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1015)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:603)
>         at java.lang.Thread.run(Thread.java:744)
> 2014-09-16 01:36:28,042 INFO  resourcemanager.ResourceManager 
> (ResourceManager.java:run(616)) - Exiting, bbye..
> {noformat}
> All the logs for this 3-node cluster has been uploaded.

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