This is a easy & breif code to using the hadoop streaming to deal with word count problem
This file is to start the hadoop streaming job by shell. With the sample to calculate the word count. The data's shape is like (word, frequency, other_feature,...)
This file is to cat the data and split the data into (word, frequency) format.
This file is to collect the data from Map Process, then do a data stastic to output the word counted results.