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From Sean Owen <>
Subject Re: Mahout on Hadoop
Date Tue, 08 Dec 2009 09:20:06 GMT
Harjeet I think you need to read the documentation of the code, of the
data you're using and of Hadoop. I think many of the questions you are
asking are answerable from those resources.

The userIdFile is not your ratings file. It is a file full of user IDs
to recommend for.

On Tue, Dec 8, 2009 at 7:05 AM, Rajpal, Harjeet Kumar
<> wrote:
> I just read the code in Recommender and saw that userIdfile path is
> given as input to mapred.input.dir. if I only give --userIdFile /input/
> instead of --userIdFile /input/users.dat. then it still gives number
> format error.

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