Cassandra is a popular NoSQL database that is often used in microservices architectures due to its ability to handle large amounts of data, support for distributed environments, and high availability. Some benefits of using Cassandra in microservices include scalability, fault tolerance, data model flexibility, and query language support with data partitioning, sharding, and distributed architecture. 

https://www.datastax.com/blog/building-fast-and-scalable-microservices-with-apache-cassandra-and-pulsar