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https://issues.apache.org/jira/browse/YARN-2257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14063721#comment-14063721
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Wangda Tan commented on YARN-2257:
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Hi [~sandyr],
Thanks for pointing me this,
I have a question here, what's the expected behavior when an admin what's to
add a new QueuePlacementRule? I guess a new class need to be added to Hadoop
project, and need rebuild Hadoop, right?
I think it's a little over-kill here, user may want convenient instead of
flexibility. If you think the rules I mentioned is not flexible enough, maybe
we can extend it to rules with pattern, like %user->root.users.%user which
means putting application from %user to root.users.%user. Which maybe easier
for admin to add new QueuePlacementRule.
I agree it's a good fit for YARN in general, but we should make it easier to
use.
Please feel free to let me know you comments, thanks.
Wangda
> Add user to queue mappings to automatically place users' apps into specific
> queues
> ----------------------------------------------------------------------------------
>
> Key: YARN-2257
> URL: https://issues.apache.org/jira/browse/YARN-2257
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler
> Reporter: Patrick Liu
> Assignee: Vinod Kumar Vavilapalli
> Labels: features
>
> Currently, the fair-scheduler supports two modes, default queue or individual
> queue for each user.
> Apparently, the default queue is not a good option, because the resources
> cannot be managed for each user or group.
> However, individual queue for each user is not good enough. Especially when
> connecting yarn with hive. There will be increasing hive users in a corporate
> environment. If we create a queue for a user, the resource management will be
> hard to maintain.
> I think the problem can be solved like this:
> 1. Define user->queue mapping in Fair-Scheduler.xml. Inside each queue, use
> aclSubmitApps to control user's ability.
> 2. Each time a user submit an app to yarn, if the user has mapped to a queue,
> the app will be scheduled to that queue; otherwise, the app will be submitted
> to default queue.
> 3. If the user cannot pass aclSubmitApps limits, the app will not be accepted.
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