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From Michael Segel <michael_se...@hotmail.com>
Subject Re: Question related to Number of Mapper
Date Wed, 07 Nov 2012 16:31:56 GMT
0 Custer didn't run. He got surrounded and then massacred.  :-P (See Custer's last stand at
Little Big Horn) 

Ok... plain text files 100 files 2 blocks each would by default attempt to schedule 200 mappers.


Is this one of those online Cert questions? 

On Nov 7, 2012, at 10:20 AM, Ramasubramanian Narayanan <ramasubramanian.narayanan@gmail.com>
wrote:

> Hi,
> 
> If a  Custer’s HDFS block size is 64MB. You have a directory containing 100 plain text
files, each of which Is 100MB in size. The InputFormat for your job is TextInputFormat. How
many Mappers will run?
> 
> regards,
> Rams
> 
> 
> 


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