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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-899) Get queue administration ACLs working
Date Thu, 08 Aug 2013 23:20:48 GMT

    [ https://issues.apache.org/jira/browse/YARN-899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734164#comment-13734164

Xuan Gong commented on YARN-899:

Here is my propose: 
We can create QueueACLsManager which encapsulate the ResourceScheduler, so whenever we need
to check user's permission, we can provide the UGI, queueName(This can be found from RMApp)
to the Scheduler (No matter it is CapacityScheduler, fairScheduler or FIFOScheduler), and
let scheduler to help us make the decision. 

For each scheduler, we may need to add a new interface : Scheduler#hasAccess(UGI, queueName).
The queueName is used to find the correct Queue. The reason why I send information back to
Scheduler and let scheduler make the decision is because 
a. I think all the QueueACLsInfos are collected by the Scheduler, and save in its queues (I
can not find    other places which save the QueueACLs), 
b. even if the queue is re-initiated in the future, we do not need to worry about it.

Attached is the patch implements this propose. Please give me the suggestions. 
> Get queue administration ACLs working
> -------------------------------------
>                 Key: YARN-899
>                 URL: https://issues.apache.org/jira/browse/YARN-899
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 2.1.0-beta
>            Reporter: Sandy Ryza
>            Assignee: Xuan Gong
>         Attachments: YARN-899.1.patch, YARN-899.2.patch
> The Capacity Scheduler documents the yarn.scheduler.capacity.root.<queue-path>.acl_administer_queue
config option for controlling who can administer a queue, but it is not hooked up to anything.
 The Fair Scheduler could make use of a similar option as well.  This is a feature-parity
regression from MR1.

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