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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-160) nodemanagers should obtain cpu/memory values from underlying OS
Date Wed, 06 May 2015 03:32:53 GMT

     [ https://issues.apache.org/jira/browse/YARN-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated YARN-160:
----------------------------------
    Labels: BB2015-05-TBR  (was: )

> nodemanagers should obtain cpu/memory values from underlying OS
> ---------------------------------------------------------------
>
>                 Key: YARN-160
>                 URL: https://issues.apache.org/jira/browse/YARN-160
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>    Affects Versions: 2.0.3-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Varun Vasudev
>              Labels: BB2015-05-TBR
>         Attachments: apache-yarn-160.0.patch, apache-yarn-160.1.patch, apache-yarn-160.2.patch,
apache-yarn-160.3.patch
>
>
> As mentioned in YARN-2
> *NM memory and CPU configs*
> Currently these values are coming from the config of the NM, we should be able to obtain
those values from the OS (ie, in the case of Linux from /proc/meminfo & /proc/cpuinfo).
As this is highly OS dependent we should have an interface that obtains this information.
In addition implementations of this interface should be able to specify a mem/cpu offset (amount
of mem/cpu not to be avail as YARN resource), this would allow to reserve mem/cpu for the
OS and other services outside of YARN containers.



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