What is Redis? Redis (“REmote DIctionary Service”) is an open-source key-value database server. The most accurate description of Redis is that it's a data structure server. This specific nature of Redis has led to much of its popularity and adoption amongst developers.

Graph based data is everywhere now days, Facebook, Google, Twitter and Pinterest are only a few who've realize the power behind relationship data and are utilizing it to the fullest, as a direct result we see a rise both in interest and variety of graph data solutions.