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https://issues.apache.org/jira/browse/HADOOP-5396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698714#action_12698714
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Hemanth Yamijala commented on HADOOP-5396:
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Looks fine. One minor nit. In refreshAcls, we have an unused queues variable. I
think this might flag a findbugs warning. Either way, better to remove it.
After this, can you please make this patch available, because it is good to go ?
> Queue ACLs should be refreshed without requiring a restart of the job tracker
> -----------------------------------------------------------------------------
>
> Key: HADOOP-5396
> URL: https://issues.apache.org/jira/browse/HADOOP-5396
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Hemanth Yamijala
> Assignee: Vinod K V
> Attachments: cluster_setup.pdf, commands_manual.pdf,
> hadoop-5396-1.patch, hadoop-5396-2.patch, HADOOP-5396-3-svn.txt,
> hadoop-5396-3.patch, HADOOP-5396-4-svn.txt, hadoop-5396-4.patch
>
>
> In large shared deployments of the M/R clusters, it is normal that new users
> will periodically want to get access to some queues on the M/R framework.
> Requiring a JT restart for each such change is operationally inconvenient and
> seems an overkill. There should be a way for updating ACLs with new users
> without requiring a JT restart.
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