Which NoSQL database for IoT Applications?

A large amount of data are generated every moment by connected objects creating Internet of Things (IoT). These data are difficult to handle using traditional databases leading to use NoSQL databases. These latter have achieved a large popularity thanks to their high performance, flexibility in scaling, and high availability. But, which NoSQL database is the most suitable for IoT applications? In this paper, we discuss the main requirements of IoT data management, and we compare five of the most popular NoSQL databases namely, Redis, Cassandra, MongoDb, Couchbase and Neo4j, in accordance with IoT data management requirements, in order to find the most suitable NoSQL database for IoT applications.