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MapReduce, mail # user - Hadoop example command.


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Re: Hadoop example command.
Ramachandran Vilayannur 2012-12-22, 09:33
Hi Rishi,
 Thanks for looking into this...
  I am just trying to set things up to begin playing around and  i got
the command from http://hadoop.apache.org/docs/r0.18.3/quickstart.html
When i run it, the command simply returns silently no messages on the
console...if you could point me to how to enable and look at logs that
would be helpful..
Thanks
Sitaraman

On Sat, Dec 22, 2012 at 5:15 AM, Rishi Yadav <[EMAIL PROTECTED]> wrote:
> 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
>> >
>
>