Wangda Tan commented on YARN-3388:

Make sense to me. I really appreciate if you can wait YARN-3361 goes first 
since it almost closed and it blocks a couple of CS changes in our side. Upon 
YARN-3361 committed. And I can help with supporting better DRF calculation for 
partition as well (including supports dominate consumed ratio for partitions) 
in CS.


> Allocation in LeafQueue could get stuck because DRF calculator isn't well 
> supported when computing user-limit
> -------------------------------------------------------------------------------------------------------------
>                 Key: YARN-3388
>                 URL: https://issues.apache.org/jira/browse/YARN-3388
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 2.6.0
>            Reporter: Nathan Roberts
>            Assignee: Nathan Roberts
>         Attachments: YARN-3388-v0.patch, YARN-3388-v1.patch
> When there are multiple active users in a queue, it should be possible for 
> those users to make use of capacity up-to max_capacity (or close). The 
> resources should be fairly distributed among the active users in the queue. 
> This works pretty well when there is a single resource being scheduled.   
> However, when there are multiple resources the situation gets more complex 
> and the current algorithm tends to get stuck at Capacity. 
> Example illustrated in subsequent comment.

This message was sent by Atlassian JIRA

Reply via email to