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https://issues.apache.org/jira/browse/YARN-945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13714294#comment-13714294
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Omkar Vinit Joshi commented on YARN-945:
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thanks [~vinodkv] .. does this help? Should we really fix this ....
[Setting conf parameter | 
https://issues.apache.org/jira/browse/YARN-944?focusedCommentId=13714291&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13714291]
                
> AM register failing after AMRMToken
> -----------------------------------
>
>                 Key: YARN-945
>                 URL: https://issues.apache.org/jira/browse/YARN-945
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bikas Saha
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: nm.log, rm.log, yarn-site.xml
>
>
> 509 2013-07-19 15:53:55,569 INFO org.apache.hadoop.ipc.Server: IPC Server 
> listener on 54313: readAndProcess from client 127.0.0.1       threw exception 
> [org.apache.hadoop.security.AccessControlException: SIMPLE authentication is 
> not enabled.  Available:[TOKEN]]
> 510 org.apache.hadoop.security.AccessControlException: SIMPLE authentication 
> is not enabled.  Available:[TOKEN]
> 511   at 
> org.apache.hadoop.ipc.Server$Connection.initializeAuthContext(Server.java:1531)
> 512   at 
> org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1482)
> 513   at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:788)
> 514   at 
> org.apache.hadoop.ipc.Server$Listener$Reader.doRunLoop(Server.java:587)
> 515   at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:562)

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