RabbitMQ + DNS SRV records: Unresolved behavior in hostname resolution caching
Goal Determine how RabbitMQ handles hostname lookups when clients use DNS SRV records for cluster discovery and whether it refreshes those lookups after a connection is established. Constraints RabbitMQ resolves hostnames via the operating system resolver; it does not natively support SRV records. Once a client connects, the broker does not re‑resolve the ho