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https://issues.apache.org/jira/browse/YARN-2992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14259385#comment-14259385
 ] 

Hudson commented on YARN-2992:
------------------------------

SUCCESS: Integrated in Hadoop-Mapreduce-trunk #2005 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2005/])
YARN-2992. ZKRMStateStore crashes due to session expiry. Contributed by Karthik 
Kambatla (jianhe: rev 1454efe5d4fe4214ec5ef9142d55dbeca7dab953)
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java


> ZKRMStateStore crashes due to session expiry
> --------------------------------------------
>
>                 Key: YARN-2992
>                 URL: https://issues.apache.org/jira/browse/YARN-2992
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Blocker
>             Fix For: 2.7.0
>
>         Attachments: yarn-2992-1.patch
>
>
> We recently saw the RM crash with the following stacktrace. On session 
> expiry, we should gracefully transition to standby. 
> {noformat}
> 2014-12-18 06:28:42,689 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Received a 
> org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type 
> STATE_STORE_OP_FAILED. Cause: 
> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode 
> = Session expired 
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:127) 
> at org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:931) 
> at org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:911) 
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:930)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:927)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithCheck(ZKRMStateStore.java:1069)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithRetries(ZKRMStateStore.java:1088)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.doMultiWithRetries(ZKRMStateStore.java:927)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.doMultiWithRetries(ZKRMStateStore.java:941)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.setDataWithRetries(ZKRMStateStore.java:958)
>  
> at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.updateApplicationAttemptStateInternal(ZKRMStateStore.java:687)
>  
> {noformat}



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