High availability f'RabbitMQ tinvolvi clustering (nodi multipli) u replicated queues (mirrored jew quorum queues) sabiex is-sistema ssotravjenza l-fallimenti tan-nodi mingħajr telf ta' messaġġi. Għal-fahim tal-HA huwa importanti għal RabbitMQ affidabbli, ta' produzzjoni.
Clustering
RabbitMQ CLUSTER → multiple RabbitMQ nodes working together as one logical broker:
→ nodes share metadata (queues, exchanges, bindings, users)
→ distributes connections and load across nodes
⚠️ by default, a queue lives on ONE node → if that node fails, the queue is unavailable
(clustering alone doesn't make queues highly available → need replication)
