Training in Noida-Training Center in Noida Big Data Hadoop is a framework by the Apache Software Foundation. This software helps million of companies in managing their big data. First, we need to understand the meaning of big data. With the advent of the internet and when the world is getting closer with the help of the internet, each and every minute million of data are being generated. Companies like Facebook, Walmart, YouTube, Twitter, Amazon, and many others are generating millions of data every minute. This millions of data are known as big data.