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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13225) Allow java to be started with numactl
Date Tue, 31 May 2016 16:26:13 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HADOOP-13225:
--------------------------------------
    Summary: Allow java to be started with numactl  (was: Allow DataNode to be started with
numactl)

> Allow java to be started with numactl
> -------------------------------------
>
>                 Key: HADOOP-13225
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13225
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: scripts
>            Reporter: Dave Marion
>         Attachments: HDFS-10370-1.patch, HDFS-10370-2.patch, HDFS-10370-3.patch, HDFS-10370-branch-2.004.patch,
HDFS-10370.004.patch
>
>
> Allow numactl constraints to be applied to the datanode process. The implementation I
have in mind involves two environment variables (enable and parameters) in the datanode startup
process. Basically, if enabled and numactl exists on the system, then start the java process
using it. Provide a default set of parameters, and allow the user to override the default.
Wiring this up for the non-jsvc use case seems straightforward. Not sure how this can be supported
using jsvc.



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