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List:       hadoop-user
Subject:    Re: a hadoop input format question
From:       Simon <gsmsteve () gmail ! com>
Date:       2011-02-28 3:36:36
Message-ID: AANLkTimniyZNCXGSzzn-KxVu9j+Dqv1NAh9Dv-AhrCSN () mail ! gmail ! com
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Firstly, I think your hadoop version is a bit too old, maybe you can try
version number larger than 20.
And try to run the sort sample with the following command.
bin/hadoop jar hadoop-*-examples.jar sort [-m <#maps>] [-r <#reduces>]
<in-dir> <out-dir>

HTH.
Simon
On Fri, Feb 25, 2011 at 5:37 PM, Shivani Rao <sgrao@purdue.edu> wrote:

> I am running basic hadoop examples on amazon emr and I am stuck at a very
> simple place. I am apparently not passing the right "classname" for
> inputFormat
>
> From hadoop documentation it seems like "TextInputFormat" is a valid option
> for input format
>
> I am running a simple sort example using mapreduce.
>
> Here is the command variations I tried, all to vain:
>
>
> $usr/local/hadoop/bin/hadoop jar /path to hadoop
> examples/hadoop-0.18.0-examples.jar sort -inFormat TextInputFormat
> -outFormat TextOutputFormat /path to datainput/datain/ /path to data
> output/dataout
>
> The sort function does not declare "TextInputFormat" in its import list.
> Could that be a problem
> ?
> Could it be a version problem?
>
>
> Any help is aprpeciated!
> Shivani
>
>
>
> --
> Research Scholar,
> School of Electrical and Computer Engineering
> Purdue University
> West Lafayette IN
> web.ics.purdue.edu/~sgrao <http://web.ics.purdue.edu/%7Esgrao>
>



-- 
Regards,
Simon


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