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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5396) Queue ACLs should be refreshed without requiring a restart of the job tracker
Date Wed, 11 Mar 2009 14:24:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680877#action_12680877
] 

Hemanth Yamijala commented on HADOOP-5396:
------------------------------------------

bq. ... adding a seperate configuration file for queue acl's would increase administrators
burden to deal with one extra file for getting something done

Actually, in HADOOP-4348, there is [feedback|https://issues.apache.org/jira/browse/HADOOP-4348?focusedCommentId=12638149&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12638149]
that indicates the other way round. A separate file is what is being viewed as not only desirable,
but necessary for managing these kinds of things.

Given that, I am +1 for Vinod's preference as well.

> 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
>
> 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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