Mix Nin 2013-03-05, 15:11
Sandy Ryza 2013-03-05, 17:27
Yes you can.
You read in the row in each iteration of Mapper.map()
You then output 3 times to the collector one for each row of the matrix.
Spin,sort, and reduce as needed.
Sent from a remote device. Please excuse any typos...
On Mar 5, 2013, at 9:11 AM, Mix Nin <[EMAIL PROTECTED]> wrote:
> I have data in a file as follows . There are 3 columns separated by semicolon(;). Each column would have multiple values separated by comma (,).
> I need output data in below format. It is like transposing values of each column.
> 11 144 y
> 22 244 n
> 33 344 y
> Can we write map reduce program to achieve this. Could you help on the code on how to write.