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https://issues.apache.org/jira/browse/YARN-160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728954#comment-13728954
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Arun C Murthy commented on YARN-160:
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I'd like to push to get this done asap.
[~t.st.clair] thanks for pointer to hwloc. In your opinion, should we directly
use hwloc in YARN rather than invent our own? What has been your experience
with hwloc? It does have an appropriate license (BSD -
http://www.open-mpi.org/projects/hwloc/license.php) ...
> 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: 2.1.0-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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