Processing of data with MapReduce
Getting to know MapReduce, MapReduce Execution Pipeline , Runtime Coordination and Task Management
MapReduce is the heart of Apache Hadoop. It is this programming paradigm that allows for massive scalability across hundreds or thousands of servers in a Hadoop cluster. The MapReduce concept is fairly simple to understand for those who are familiar with clustered scale-out data processing solutions.
Hadoop Word Count Implementation Installing and Running Pig,
Hbase Versus RDBMS, Installing and Running ZooKeeper