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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:
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Attachment: HDFS-10370-1.patch
Straw man patch, looking for feedback.
> 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
> Attachments: HDFS-10370-1.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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