Miklos Szegedi commented on YARN-5764:

Committed to trunk. Thank you for the contribution [~devaraj.k], [~olasoji] for 
the report and for the reviews [~leftnoteasy], [~rajesh.balamohan], 
[~raviprak], [~sunilg] and [~rohithsharma].

> NUMA awareness support for launching containers
> -----------------------------------------------
>                 Key: YARN-5764
>                 URL: https://issues.apache.org/jira/browse/YARN-5764
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager, yarn
>            Reporter: Olasoji
>            Assignee: Devaraj K
>            Priority: Major
>         Attachments: NUMA Awareness for YARN Containers.pdf, NUMA Performance 
> Results.pdf, YARN-5764-v0.patch, YARN-5764-v1.patch, YARN-5764-v10.patch, 
> YARN-5764-v11.patch, YARN-5764-v2.patch, YARN-5764-v3.patch, 
> YARN-5764-v4.patch, YARN-5764-v5.patch, YARN-5764-v6.patch, 
> YARN-5764-v7.patch, YARN-5764-v8.patch, YARN-5764-v9.patch
> The purpose of this feature is to improve Hadoop performance by minimizing 
> costly remote memory accesses on non SMP systems. Yarn containers, on launch, 
> will be pinned to a specific NUMA node and all subsequent memory allocations 
> will be served by the same node, reducing remote memory accesses. The current 
> default behavior is to spread memory across all NUMA nodes.

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