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MapReduce >> mail # user >> Hadoop example command.


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Ramachandran Vilayannur 2012-12-21, 05:48
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Serge Blazhiyevskyy 2012-12-21, 05:58
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Ramachandran Vilayannur 2012-12-21, 06:12
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Re: Hadoop example command.
Hi Sitaraman,

Can you tell what exactly this command is doing.

 bin/hadoop jar -v hadoop-examples-0.20.203.0.jar grep input output
'dfs[a-z]+'

general format is -> hadoop jar library main_class input output

Thanks and Regards,

Rishi Yadav

On Thu, Dec 20, 2012 at 10:12 PM, Ramachandran Vilayannur <
[EMAIL PROTECTED]> wrote:

> Hi  Serge,
>  Thanks for the response....did a find . -name output on hadoop home
> directory and cygwin directoy and also tried giving ./ouput in the
> command....yet cant find it...
> Sitaraman
>
> On Fri, Dec 21, 2012 at 11:28 AM, Serge Blazhiyevskyy
> <[EMAIL PROTECTED]> wrote:
> > It might be created in different location under cygwin
> >
> >
> > On Dec 20, 2012, at 9:48 PM, Ramachandran Vilayannur <
> [EMAIL PROTECTED]> wrote:
> >
> >> Hi
> >> The command,
> >> bin/hadoop jar -v hadoop-examples-0.20.203.0.jar grep input output
> 'dfs[a-z]+'
> >> returns without error in Cygwin. However the output directory is not
> >> created....Any help in identifying the problem is much appreciated.
> >> Sitaraman
> >
>
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Ramachandran Vilayannur 2012-12-22, 09:33