5dba3cdd75
Say server in cluster A accepts a connection from a server in cluster B. The gateway is implicit, in that A does not have a configured remote gateway to B. Then the server in B is shutdown, which A detects and initiate a single reconnect attempt (since it is implicit and if the reconnect retries is not set). While this happens, a new server in B is restarted and connects to A. If that happens before the initial reconnect attempt failed, A will register that new inbound and do not attempt to solicit because it has already a remote entry for gateway B. At this point when the reconnect to old server B fails, then the remote GW entry is removed, and A will not create an outbound connection to the new B server. We fix that by checking if there is a registered inbound when we get to the point of removing the remote on a failed implicit reconnect. If there is one, we try the reconnection. 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 30 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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