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Posted to yarn-issues@hadoop.apache.org by "Ashwin Shankar (JIRA)" <ji...@apache.org> on 2014/06/17 18:47:04 UTC

[jira] [Commented] (YARN-2162) Fair Scheduler :ability to optionally configure minResources and maxResources in terms of percentage

    [ https://issues.apache.org/jira/browse/YARN-2162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14034019#comment-14034019 ] 

Ashwin Shankar commented on YARN-2162:
--------------------------------------

[~maysamyabandeh], yes that was the intention. Changed title and description to make it clear.

> 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: scheduler
>            Reporter: Ashwin Shankar
>              Labels: scheduler
>
> 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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