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https://issues.apache.org/jira/browse/YARN-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669753#comment-13669753
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Karthik Kambatla commented on YARN-326:
---------------------------------------

Neatly done, Sandy. I have one comment: given we have ResourceType now, it 
might be better to get rid of memory/cpu specific methods in ResourceWeights. 
The following two methods should suffice.

{code}
float getWeight(ResourceType rt);
void setWeight(ResourceType rt, float weight);
{code}
                
> Add multi-resource scheduling to the fair scheduler
> ---------------------------------------------------
>
>                 Key: YARN-326
>                 URL: https://issues.apache.org/jira/browse/YARN-326
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: scheduler
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: FairSchedulerDRFDesignDoc-1.pdf, 
> FairSchedulerDRFDesignDoc.pdf, YARN-326-1.patch, YARN-326-1.patch, 
> YARN-326-2.patch, YARN-326-3.patch, YARN-326-4.patch, YARN-326.patch, 
> YARN-326.patch
>
>
> With YARN-2 in, the capacity scheduler has the ability to schedule based on 
> multiple resources, using dominant resource fairness.  The fair scheduler 
> should be able to do multiple resource scheduling as well, also using 
> dominant resource fairness.
> More details to come on how the corner cases with fair scheduler configs such 
> as min and max resources will be handled.

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