kappa-architecture.com Repository dedicated to Kappa Architecture. I collect and publish articles, tutorials, talks, projects and examples related to Kappa Architecture. Kappa Architecture is a software architecture pattern. Rather than using a relational DB like SQL or a key-value store like Cassandra, the canonical data store in a Kappa Architecture system is an append-only immutable log. From the log, data is streamed through a computational system and fed into auxiliary stores for serving. Kappa Architecture is a simplification of Lambda Architecture . A Kappa Architecture system is like a Lambda Architecture system with the batch processing system removed. To replace batch processing, data is simply fed through the streaming system quickly. Kappa Architecture revolutionizes database migrations and reorganizations: just delete your serving layer database and populate a new...