Today, organizations are storing their data with affordable price. With the use of Hadoop, a user can find out the click patterns, targeting, etc. Hadoop plays a major role in today’s world and it is used for data warehousing, ETL, predictive analytics and much more. Hadoop is an emerging one and now companies have to manage large-scale data operations. Apache Hadoop is a strong pillar of IT Big Data systems like – Google, Amazon, Facebook, Yahoo, Apple, eBay, Cloud Era, IBM, MapR, Horton works, etc.