MapReduce is a programming paradigm that runs in the background of Hadoop to provide scalability and easy data-processing solutions. The paradigm is very powerful providing solutions to many bigdata problems.
MapReduce is a framework rather than a tool in Hadoop. One has to shape the solution to the problem into MapReduce’s framework which might be sometimes difficult in some application areas.
MapReduce – for beginners is intended to provide a basic understanding of MapReduce for students with zero or little knowledge on Hadoop’s MapReduce. This will let you understand what exactly MapReduce is and how to install Hadoop to use MapReduce and also to run an example program on MapReduce framework.