Big Data Analytics: Hadoop-Map Reduce & NoSQL Databases

Abstract — Today, we are surrounded by data like oxygen. The exponential growth of data first presented challenges to cutting- edge businesses such as Google, Yahoo, Amazon, Microsoft, Facebook, Twitter etc. Data volumes to be processed by cloud applications are growing much faster than computing power. This growth demands new strategies for processing and analysing information. Such large volume of un-structured (or semi structured) and structured data that gets created from various applications, emails, web logs, social media is known as “Big Data”. This kind of data exceeds the processing capacity of conventional database systems. In this paper we will provide the basic knowledge about Big Data, which is majorly being generated because of cloud computing and also explain in detail about the two widely used Big Data Analytics techniques i.e. Hadoop MapReduce and NoSQL Database