Auto-expire orphaned Subscription (Azure ServiceBus Messaging SubscriptionClient)

Question

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

Answer 1

I had the exact same problem, preview solving it was released beginning of 2013: http://msdn.microsoft.com/en-us/library/microsoft.servicebus.messaging.subscriptiondescription.autodeleteonidle.aspx

It's very easy to use (see example below). Unfortunately it seems that the subscription times out if there is no message published for the AutoDeleteOnIdle period, even if you have some process awaiting for messages (according to Azure Servicebus AutoDeleteOnIdle).

NamespaceManager manager=NamespaceManager.CreateFromConnectionString(serviceBusConnectionString);
if(!manager.SubscriptionExists(topic,subscriptionName))
{
    manager.CreateSubscription(new SubscriptionDescription(topic,subscriptionName) {
        AutoDeleteOnIdle=TimeSpan.FromDays(2)
    });
}