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https://issues.apache.org/jira/browse/HDFS-390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HDFS-390.
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Resolution: Fixed
This was done a long time ago.
> Hadoop daemons should support generic command-line options by implementing
> the Tool interface
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-390
> URL: https://issues.apache.org/jira/browse/HDFS-390
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Critical
>
> Hadoop daemons (NN/DN/JT/TT) should support generic command-line options
> (i.e. -nn / -jt/ -conf / -D) by implementing the Tool interface.
> This is particularly useful for cases where the masters(NN/JT) are to be
> configured dynamically e.g. via HoD.
> (I suspect we will need to possibly tweak some the the hadoop scripts too,
> possibly.)
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