Federation dan shovel adalah fitur RabbitMQ untuk menghubungkan broker terpisah — memindahkan pesan antara instance RabbitMQ di berbagai lokasi atau jaringan. Mereka memungkinkan pesan terdistribusi di data center tanpa clustering melalui tautan yang tidak andal.
Kebutuhan: menghubungkan broker terpisah
Clustering connects nodes on a RELIABLE, low-latency network. But sometimes you need to
connect brokers across DATA CENTERS / regions / unreliable networks:
→ clustering is UNSUITABLE for high-latency/unreliable links (it needs tight coupling)
→ FEDERATION and SHOVEL link separate brokers loosely (good for WAN/geo-distribution)
