RabbitMQ dan Kafka adalah sistem messaging yang berbeda secara fundamental — RabbitMQ adalah message broker tradisional (antrian, routing fleksibel, pesan dikonsumsi dan dihapus), sementara Kafka adalah distributed event log (tersimpan, dapat diputar ulang, streaming high-throughput). Mereka sesuai untuk use case yang berbeda.
Perbedaan fundamental
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
