To understand Big Data generation statistics in nutshell, let’s take the example of Facebook and Google. People around the globe continuously using Google, Facebook and making data generation a continues process. Facebook is collecting our data more than 500 terabytes (1000 X 500 Gigabytes) a day which includes 2.9 billion Likes per day. More than 350 million photos uploaded per day. Data per day processed by Google 24 petabytes (24 X 1,000,000,000,000,000 bytes). 400 hours of video are uploaded to YouTube every minute.
The Apache Cassandra database is accurate adoption when we need scalability and high availability
without compromising performance. Facebook uses it for its Inbox search. Initially Cassandra was developed by Facebook and later outsource to Apache community as open source.