Shuffling and Combiner - concept

Originally published at: http://www.itversity.com/topic/shuffling-and-combiner-concept/

Let us understand the concept of shuffling and combiner in map reduce in layman terms. Take the example of deck of cards – a random collection of playing cards Each card have 3 attributes – color, suit and pip There are 2 colors, 4 suits and 13 pips distributed in 52 cards of each deck…