ebook-chat-app-spring-websocket-cassandra-redis-rabbitmq

Pro Java Clustering and Scalability: Building Real-Time Apps with Spring, Cassandra, Redis, WebSocket and RabbitMQ. Maintained by jorgeacetozi on GitHub, where it has earned 302 stars from the community.

It's actively developed around cassandra, rabbitmq, redis, and is a solid reference for anyone building with these tools.