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https://issues.apache.org/jira/browse/MAPREDUCE-5435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13723952#comment-13723952
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Devaraj K commented on MAPREDUCE-5435:
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Can you check the Node Manager log file, whether is it connecting to  the 
resource manager properly or any other error?  
                
> Nodemanager stops working automatically
> ---------------------------------------
>
>                 Key: MAPREDUCE-5435
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5435
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Vishket
>
> Hi Everyone, 
> I have been trying to setup a 10 node Hadoop Cluster(Hadoop 2.0.5 alpha). 
> I've completed editing all the configuration files and am now trying to run 
> the daemons. All the processes work fine apart from the nodemanager. The 
> nodemanager runs fine on the slave however, on the master, it will only run 
> for 10-15 sec and then stops. Same thing happens if I run the start command 
> again.
> Any suggestions?
> Thanks in advance!

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