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Posted to yarn-issues@hadoop.apache.org by "Arun Suresh (JIRA)" <ji...@apache.org> on 2017/08/29 11:36:00 UTC
[jira] [Comment Edited] (YARN-7117) Capacity Scheduler: Support
Auto Creation of Leaf Queues While Doing Queue Mapping
[ https://issues.apache.org/jira/browse/YARN-7117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16145144#comment-16145144 ]
Arun Suresh edited comment on YARN-7117 at 8/29/17 11:35 AM:
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The proposal makes sense and it is a feature that I have heard folks asking for.
So, the FairScheduler has allowed creation of dynamic queues for users for a while now. One doesn't really worry about unsued queues here, since the default policy is always 'Fair' it doesn't really matter if the queue is active or not, since its siblings will use up all the resources by default. https://blog.cloudera.com/blog/2016/06/untangling-apache-hadoop-yarn-part-4-fair-scheduler-queue-basics/
was (Author: asuresh):
The proposal makes sense and it is some that I have heard folks asking for.
So, the FairScheduler has allowed creation of dynamic queues for users for a while now. One doesn't really worry about unsued queues here, since the default policy is always 'Fair' it doesn't really matter if the queue is active or not, since its siblings will use up all the resources by default. https://blog.cloudera.com/blog/2016/06/untangling-apache-hadoop-yarn-part-4-fair-scheduler-queue-basics/
> Capacity Scheduler: Support Auto Creation of Leaf Queues While Doing Queue Mapping
> ----------------------------------------------------------------------------------
>
> Key: YARN-7117
> URL: https://issues.apache.org/jira/browse/YARN-7117
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: capacity scheduler
> Reporter: Wangda Tan
> Assignee: Wangda Tan
>
> Currently Capacity Scheduler doesn't support auto creation of queues when doing queue mapping. We saw more and more use cases which has complex queue mapping policies configured to handle application to queues mapping.
> The most common use case of CapacityScheduler queue mapping is to create one queue for each user/group. However update {{capacity-scheduler.xml}} and {{RMAdmin:refreshQueues}} needs to be done when new user/group onboard. One of the option to solve the problem is automatically create queues when new user/group arrives.
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