Hadoop came as a solution for the Data storage and processing issues which rose with the advent of the Internet, e-commerce, social media etc. Companies started collecting Data of their customers and had to store that data for future use purposes. Maintaining onsite servers and other infrastructure proved to be too costly and time taking process. Hadoop was formally introduced as a solution for all the above issues in the year 2011 and was actually created in the year 2005 by Doug Cutting and Mike Caferella.