Introduction To Hadoop Ecosystem and Big Data - For Beginners

Every day we create more than 2.5 quintillion bytes of data- so much that 90% of the data in the world today has been created in the last two years alone. The increase in volume of digital information is alnost tenfold every 5 years and by 2020, it is predicted to reach a threshold of 40 zettabytes (ZB). Most of the digital information is derived from multiple sources including social media, internet, blogs, sensor networks, and much more

                          

 This data is "Big Data."

                           
Huge Amount of Data:

There is huge amount of data in the world

Ø From the beginning till 2003 almost we have create 5 billion gigabytes(exabytes) of data.

Ø In the year 2011 we have created same amount of data with in every 2 days

Ø In the year 2013 we have created same amount of data with in a time of 10 minutes