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Ashwin Shankar commented on YARN-1864: -------------------------------------- [~vinodkv] Thanks for letting me know, I'll keep this in mind. > Fair Scheduler Dynamic Hierarchical User Queues > ----------------------------------------------- > > Key: YARN-1864 > URL: https://issues.apache.org/jira/browse/YARN-1864 > Project: Hadoop YARN > Issue Type: New Feature > Components: scheduler > Reporter: Ashwin Shankar > Labels: scheduler > Attachments: YARN-1864-v1.txt > > > In Fair Scheduler, we want to be able to create user queues under any parent > queue in the hierarchy. For eg. Say user1 submits a job to a parent queue > called root.allUserQueues, we want be able to create a new queue called > root.allUserQueues.user1 and run user1's job in it.Any further jobs submitted > by this user to root.allUserQueues will be run in this newly created > root.allUserQueues.user1. > This is very similar to the 'user-as-default' feature in Fair Scheduler which > creates user queues under root queue. But we want the ability to create user > queues under ANY parent queue. > Why do we want this ? > 1. Preemption : these dynamically created user queues can preempt each other > if its fair share is not met. So there is fairness among users. > User queues can also preempt other non-user leaf queue as well if below fair > share. > 2. Allocation to user queues : we want all the user queries(adhoc) to consume > only a fraction of resources in the shared cluster. By creating this > feature,we could do that by giving a fair share to the parent user queue > which is then redistributed to all the dynamically created user queues. -- This message was sent by Atlassian JIRA (v6.2#6252)