Amazon RDS vs Cassandra

Amazon Relational Database Service (RDS) is a managed database service from AWS that supports MySQL, PostgreSQL, MariaDB, Oracle, SQL Server, and Db2 engines. It automates hardware provisioning, database setup, patching, and backups with options for Multi-AZ deployments and read replicas.

Apache Cassandra is an open-source distributed NoSQL database designed for handling large amounts of data across commodity servers with high availability and no single point of failure. It uses a masterless ring architecture with tunable consistency.