ASF GitHub Bot commented on YARN-2162:

GitHub user flyrain opened a pull request:


    YARN-2162. add ability to optionally configure maxResources in terms …

    …of percentage

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    $ git pull https://github.com/flyrain/hadoop yarn-2162

Alternatively you can review and apply these changes as the patch at:


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    This closes #261
commit 581af4d340c5a8689c3d7d5e5a6cdeee7d2784fe
Author: Yufei Gu <yu...@apache.org>
Date:   2017-08-01T00:05:08Z

    YARN-2162. add ability to optionally configure maxResources in terms of 


> Fair Scheduler :ability to optionally configure minResources and maxResources 
> in terms of percentage
> ----------------------------------------------------------------------------------------------------
>                 Key: YARN-2162
>                 URL: https://issues.apache.org/jira/browse/YARN-2162
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler, scheduler
>            Reporter: Ashwin Shankar
>            Assignee: Yufei Gu
>              Labels: scheduler
>         Attachments: YARN-2162.001.patch, YARN-2162.002.patch
> minResources and maxResources in fair scheduler configs are expressed in 
> terms of absolute numbers X mb, Y vcores. 
> As a result, when we expand or shrink our hadoop cluster, we need to 
> recalculate and change minResources/maxResources accordingly, which is pretty 
> inconvenient.
> We can circumvent this problem if we can optionally configure these 
> properties in terms of percentage of cluster capacity. 

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