Netflix Tudum Architecture: from CQRS with Kafka to CQRS with RAW Hollow

The blog post discusses the architecture of Tudum.com, Netflix's fan engagement platform, detailing its transition from a CQRS model using Kafka to a new architecture employing RAW Hollow, an in-memory database. The authors explain the challenges faced with eventual consistency and I/O operations, highlighting how the new architecture dramatically improved response times and reliability for content updates and previews. Key learnings emphasize the importance of efficient caching strategies and minimizing I/O in software architecture.