What is Redis ? Redis is a super fast non-relational database that uses keys to map to different data types. It is a key value data store (NoSQL) allowing to solve efficiently many different problem sets. Redis was created by Salvatore Sanfilippo in 2009, and Sanfilippo still remains the lead developer of the project today. It is a mature and hugely popular open source project, being used by many companies and in countless mission-critical production environments. Here is an interview …