Why did you choose Cassandra? What alternatives did you consider? How did you test?

Cassandra was chosen for its scalability and high availability when working with large volumes of data and a distributed architecture. We considered alternatives such as MongoDB, HBase, and traditional relational databases (PostgreSQL, MySQL), but they did not provide the necessary horizontal scalability and fault tolerance.

For testing, we conducted load testing using tools that simulate real read and write scenarios, evaluated delays and throughput. We also tested node failure resilience and data recovery. Cassandra showed the best results in response time and stability under increased load.