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https://issues.apache.org/jira/browse/MAPREDUCE-1611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864138#action_12864138
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Vinod K V commented on MAPREDUCE-1611:
--------------------------------------

Patch looks good. I also ran a single node test to verify refresh queues, it 
passes. Going to commit this..

> Refresh nodes and refresh queues doesnt work with service authorization 
> enabled
> -------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1611
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1611
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.21.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: MAPREDUCE-1611-20100319-ydist.txt, mr-1611-v1.0.patch
>
>
> If service-level authorization enabled (i.e _hadoop.security.authorization_ 
> set to *true*) for MapReduce then refreshing the node and queue fails with 
> the following message
> {noformat}
> Protocol interface org.apache.hadoop.mapred.AdminOperationsProtocol is not 
> known.
> {noformat}

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