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https://issues.apache.org/jira/browse/YARN-2257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058612#comment-14058612
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Wangda Tan commented on YARN-2257:
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Hi [~Patrick Liu],
Thanks for creating this JIRA, I think it's a very useful feature and should be
considered to release soon.
To [~sandyr], I think it's better to make it as a basic module of YARN, other
scheduler can all benefit from it. W can simply implement a module can read
from configuration, which will return queue of following sequence:
- If queue defined in ApplicationSubmissionContext, use it,
- If userA->queueB defined, use queueB
- If groupA (userA belongs groupA)->queueB defined, use queueB
- use default queue otherwise.
We may need consider to create a separated service to load updated user->queue
mapping periodical as well.
Any thoughts?
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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