Wei Yan updated YARN-2393:

    Attachment: YARN-2393-3.patch

Rebase a new patch.
[~kasha], for the reloading, if we want only update queues whose weights have 
been changed, it seems we need to change bundle of code as we need to compare 
the "previous" weight and "current" weight. I don't know whether this is a good 
problem. So in this patch, still keep the old way that does 
rootQueue.recomputeSteadyShares() once allocation file reloaded.

> Fair Scheduler : Implement static fair share
> --------------------------------------------
>                 Key: YARN-2393
>                 URL: https://issues.apache.org/jira/browse/YARN-2393
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler
>            Reporter: Ashwin Shankar
>            Assignee: Wei Yan
>         Attachments: YARN-2393-1.patch, YARN-2393-2.patch, YARN-2393-3.patch
> Static fair share is a fair share allocation considering all(active/inactive) 
> queues.It would be shown on the UI for better predictability of finish time 
> of applications.
> We would compute static fair share only when needed, like on queue creation, 
> node added/removed. Please see YARN-2026 for discussions on this. 

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