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https://issues.apache.org/jira/browse/HDFS-13861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592164#comment-16592164
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Brahma Reddy Battula commented on HDFS-13861:
---------------------------------------------

[~ayushtkn] thanks for working on this.

Have couple of queries:

i) Make case sensitive wn't it be backward compatible..?

ii) how about changing "Federation Admin Tools:\n"  ==> "Usage: hdfs 
routeradmin"..?

> RBF: Illegal Router Admin command leads to printing usage for all commands
> --------------------------------------------------------------------------
>
>                 Key: HDFS-13861
>                 URL: https://issues.apache.org/jira/browse/HDFS-13861
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ayush Saxena
>            Assignee: Ayush Saxena
>            Priority: Major
>         Attachments: HDFS-13861-01.patch, HDFS-13861-02.patch
>
>
> When an illegal argument is passed for any router admin command it prints 
> usage for all the admin command it should be specific to the command used and 
> print the usage only for that command.



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