I am trying to create a mapreduce example that add values of same keys. E.g.
the input
A 1
A 2
B 4
get the output
A 3
B4
The problem is that I cannot make the program read 2 inputs. How I do that?
Here is my example:
package org.apache.hadoop.examples;
import java.io.IOException;
impor
I made a mistake in my example.
Given 2 files with the same content:
file 1 | file 2
A 3 | A 3
B 4 | B 4
gives the output
A 6
B 8
On 5 June 2013 21:08, Pedro Sá da Costa wrote:
> I am trying to create a mapreduce example that add values of same keys.
> E.g.
> the input
> A 1
>
