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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-689) Add multiplier unit to resourcecapabilities
Date Tue, 21 May 2013 03:21:19 GMT

    [ https://issues.apache.org/jira/browse/YARN-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13662630#comment-13662630
] 

Alejandro Abdelnur commented on YARN-689:
-----------------------------------------

Here it goes again: I have an additional use case where decoupling the minimum and the multiplier
would lead to a significantly better resource utilization. I have an application that does
container allocations using pure memory or pure CPU. This is, it requests containers with
only CPU capabilities or with only memory capabilities. In this scenario, the minimum would
bet set to ZERO. The overload of min/multiplier does not work in this case.
                
> Add multiplier unit to resourcecapabilities
> -------------------------------------------
>
>                 Key: YARN-689
>                 URL: https://issues.apache.org/jira/browse/YARN-689
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api, scheduler
>    Affects Versions: 2.0.4-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: YARN-689.patch, YARN-689.patch, YARN-689.patch
>
>
> Currently we overloading the minimum resource value as the actual multiplier used by
the scheduler.
> Today with a minimum memory set to 1GB, requests for 1.5GB are always translated to allocation
of 2GB.
> We should decouple the minimum allocation from the multiplier.
> The multiplier should also be exposed to the client via the RegisterApplicationMasterResponse

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