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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1089) Add YARN compute units alongside virtual cores
Date Wed, 25 Sep 2013 01:20:03 GMT

    [ https://issues.apache.org/jira/browse/YARN-1089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13777034#comment-13777034
] 

Sandy Ryza commented on YARN-1089:
----------------------------------

I'm ok with with waiting until 2.3.  In case it's not clear, the consequence of this is that
until then it will be impossible to place more tasks on a node than its number of virtual
cores, which is essentially its number of physical cores.

I think we should make YARN-976, documenting the meaning of vcores, a blocker for 2.2.
                
> Add YARN compute units alongside virtual cores
> ----------------------------------------------
>
>                 Key: YARN-1089
>                 URL: https://issues.apache.org/jira/browse/YARN-1089
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: api
>    Affects Versions: 2.1.0-beta
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-1089-1.patch, YARN-1089.patch
>
>
> Based on discussion in YARN-1024, we will add YARN compute units as a resource for requesting
and scheduling CPU processing power.

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