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Posted to yarn-issues@hadoop.apache.org by "Timothy St. Clair (JIRA)" <ji...@apache.org> on 2013/04/12 15:34:16 UTC
[jira] [Commented] (YARN-160) nodemanagers should obtain cpu/memory
values from underlying OS
[ https://issues.apache.org/jira/browse/YARN-160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13630059#comment-13630059 ]
Timothy St. Clair commented on YARN-160:
----------------------------------------
If it's possible to tag along development on this one, I would be interested in the approach. IMHO referencing existing solutions gauges baseline:
Ref:
http://www.open-mpi.org/projects/hwloc/
http://www.rce-cast.com/Podcast/rce-33-hwloc-portable-hardware-locality.html
http://gridscheduler.sourceforge.net/projects/hwloc/GridEnginehwloc.html
> 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: Alejandro Abdelnur
> Fix For: 2.0.5-beta
>
>
> 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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