RabbitMQ e Kafka sono entrambi sistemi di messaging ma differiscono fondamentalmente — RabbitMQ è un message broker tradizionale (code, routing flessibile, messaggi consumati e rimossi), mentre Kafka è un event log distribuito (conservato, riproducibile, streaming ad alto throughput). Si adattano a casi d'uso diversi.
La differenza fondamentale
RABBITMQ → a message BROKER (smart broker, simple consumer):
→ messages ROUTED via exchanges, CONSUMED and removed (transient)
→ rich ROUTING (exchange types); per-message handling; push-based
→ for: task queues, complex routing, request/reply, traditional messaging
KAFKA → a distributed event LOG (simple broker, smart consumer):
→ events RETAINED (not removed on consume), replayable; partition-based
→ very high throughput; multiple consumers read the same data; pull-based
→ for: event streaming, high-volume data, pipelines, retention/replay
