Alejandro Abdelnur created YARN-160:
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Summary: 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: 2.0.3-alpha
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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