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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2823) NullPointerException in RM HA enabled 3-node cluster
Date Thu, 06 Nov 2014 22:07:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201041#comment-14201041
] 

Jian He commented on YARN-2823:
-------------------------------

Upload a patch to add the previously finished attempt to scheduler

> 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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