55b0f8d855
Suppose a cluster of 2 servers, let's call them leaf1 and leaf2. These servers are routed and have a leaf connection to another server, let's call it srv1. They share the same cluster name. If a queue subscriber runs on srv1 and a queue subscriber on the same subject/group name runs on leaf1, if a requestor runs on leaf2, the request should reach only one of the 2 queue subs. The defect was that sometimes both queue subs would receive the message. The added test checks that only one reply is ever received and that the local "leaf" cluster is preferred. Resolves #1722 Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
NATS is a simple, secure and performant communications system for digital systems, services and devices. NATS is part of the Cloud Native Computing Foundation (CNCF). NATS has over 40 client language implementations, and its server can run on-premise, in the cloud, at the edge, and even on a Raspberry Pi. NATS can secure and simplify design and operation of modern distributed systems.
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