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Posted to yarn-issues@hadoop.apache.org by "Devaraj K (JIRA)" <ji...@apache.org> on 2016/10/20 22:57:59 UTC
[jira] [Updated] (YARN-5764) NUMA awareness support for launching
containers
[ https://issues.apache.org/jira/browse/YARN-5764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Devaraj K updated YARN-5764:
----------------------------
Fix Version/s: (was: 2.6.0)
> 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
> Affects Versions: 2.6.0
> Environment: SW: CentOS 6.7, Hadoop 2.6.0
> Processors: Intel Xeon CPU E5-2699 v4 @2.20GHz
> Memory: 256GB 4 NUMA nodes
> Reporter: Olasoji
>
> 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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