Abstract: “In current era, Web is the best source for getting any information or making decision on something. People get online suggestions before making any decision such as buying any product, booking movie tickets etc. In such cases recommendation systems play important role. Recommendation System works on the data about users and items which has to be recommended. Due to huge size of data, distributed systems come into existence.”

Keywords: Recommendation System, Hadoop, HBase, Mahout, Map-Reduce