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From "Wei Yan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2393) Fair Scheduler : Implement static fair share
Date Thu, 14 Aug 2014 17:20:15 GMT

     [ https://issues.apache.org/jira/browse/YARN-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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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