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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2823) NullPointerException in RM HA enabled 3-node cluster
Date Thu, 06 Nov 2014 23:26:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-2823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201193#comment-14201193

Hadoop QA commented on YARN-2823:

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

    {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}.  There were no new javadoc 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
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 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/5760//testReport/
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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