Map Reduce

Everyone is saying that the world is going the cloud way. Big Data, Analytics etc are today’s buzzwords. I used to wonder what is so special about the cloud? I read a bit about Hadoop, HBase (the NoSQL DB for Hadoop) etc and came to know about the Map Reduce Framework.

Map Reduce is a framework which helps us to write program for the cloud. It is a simple framework. The MapReduce version of the Hello World program for Hadoop is the WordCount program.

I decided to start experimenting with this framework and have written a couple of programs. Find it here in my git repo.

How Map and Reduce operations are actually carried out:

Some Usecases of MapReduce:

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