Cassandra

During the mid-2000s, Facebook was rapidly growing and needed a database with massive scaling. Unfortunately, there was no database in the market which could meet Facebook’s scaling requirement. Taking influence from Google’s Big Table paper (2006) and Amazon’s Dynamo paper (2007), two Facebook Engineers Avinash Lakshman (co-author of Amazon Dynamo paper) and Prashant Malik, developed Cassandra as a distributed Wide Column Store database in 2008. It is a highly scalable database and widely used in the industry to handle massive data.