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Date: Wed, 16 Aug 2017 19:38:00 +0000 (UTC)
From: "Wangda Tan (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13014081.1477003925000.46961.1502912280578@Atlassian.JIRA>
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References: <JIRA.13014081.1477003925000@Atlassian.JIRA> <JIRA.13014081.1477003925806@jira-lw-us.apache.org>
Subject: [jira] [Commented] (YARN-5764) NUMA awareness support for launching
 containers
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archived-at: Wed, 16 Aug 2017 19:38:07 -0000


    [ https://issues.apache.org/jira/browse/YARN-5764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16129306#comment-16129306 ] 

Wangda Tan commented on YARN-5764:
----------------------------------

[~devaraj.k], 

bq. I can take it up this task to split the common code from YARN-6620 to separate JIRA to handle the NM recovery of assigned resources.
Sounds good, you can create a JIRA and let me know, I can help with reviews.

> 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
>         Attachments: NUMA Awareness for YARN Containers.pdf, NUMA Performance Results.pdf, YARN-5764-v0.patch, YARN-5764-v1.patch, YARN-5764-v2.patch, YARN-5764-v3.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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