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MapReduce >> mail # user >> Slaves file

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Re: Slaves file
Hello Patai,

Yes, there is support for prepending lines with '#' to designate comments.
 This feature was implemented in jira issue HADOOP-4454:


This was done ~5 years ago, so unless you're running a very old version, I
expect your deployment has the feature.

Chris Nauroth

On Thu, May 16, 2013 at 11:56 AM, Patai Sangbutsarakum <

> Quick easy question.
> Can we put # in front of the host name in slave file, and hope that nn and
> jtk will consider it comment out?
> Thanks
> -p