So I was trying out my first hadoop program and I was little wary of writing mapper and reducer. But I still wanted to write the program to give me the word count for all words in the input files
So I wrote a driver program of hadoop with map class as a TokenCounterMapper Class. This class is provided by hadoop and it tokenizes the input text and emits each word with count 1.
Just the recipe that I ordered …
Now I needed a reducer which Continue reading “Hadoop : A wordcount without explicit mapper/reducer”