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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-723) Yarn default value of physical cpu cores to virtual core is 2
Date Tue, 27 Aug 2013 21:40:22 GMT

     [ https://issues.apache.org/jira/browse/YARN-723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated YARN-723:
-------------------------------

    Fix Version/s:     (was: 2.1.0-beta)
                   2.3.0
    
> Yarn default value of physical cpu cores to virtual core is 2
> -------------------------------------------------------------
>
>                 Key: YARN-723
>                 URL: https://issues.apache.org/jira/browse/YARN-723
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.0.4-alpha
>            Reporter: Bikas Saha
>             Fix For: 2.3.0
>
>
> The default virtual core allocation in the RM is 1. That means every container will get
1 virtual core == 1/2 a physical core. Not sure if this breaks implicit MR assumptions of
maps/reduces getting at least 1 physical cpu.

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