The scenario I have in mind is this: Service Bus is used for instance-to-instance communication, so a Subscription is unique per service instance. The end result is that if an instance does not shut down gracefully, its subscription does not get deleted.
When a service instance “dies” and restarts, previous contents of the subscription are irrelevant and can be discarded.
So, is there a way to set a “time to live” for Service Bus Subscription or simulate something similar, without having to resort to some custom orphan detection mechanism?
that exact feature is on the backlog for one of the next releases. that said, in azure you could use the instance-id fro the role environment to create the name of your subscription and thus have a restarting instance reuse a subscription. the instance-id names are stable.
Edit: The feature is AutoDeleteOnIdle https://learn.microsoft.com/en-us/dotnet/api/microsoft.servicebus.messaging.subscriptiondescription