Dave Marion created HDFS-10370:
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Summary: 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
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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