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https://issues.apache.org/jira/browse/HDFS-10370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dave Marion updated HDFS-10370:
-------------------------------
    Attachment: HDFS-10370-3.patch

> Allow DataNode to be started with numactl
> -----------------------------------------
>
>                 Key: HDFS-10370
>                 URL: https://issues.apache.org/jira/browse/HDFS-10370
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>         Attachments: HDFS-10370-1.patch, HDFS-10370-2.patch, 
> HDFS-10370-3.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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