A newbie question : If I am not using Sagas or pub/sub model, do I need any persistence layer with NServiceBus?
The default persistence is RavenDB, I was wondering if I just use NSB without RavenDB or any persistence layer?
Side note: Currently I have to run RavenDBServer.exe before I can even play around with NserviceBus, so if I do start using NServiceBus, I don't want to have a dependency on another app running in production. This could be a issue with my install.
NServiceBus only uses persistence for storing subscriptions for pub/sub and for saga state. If you aren't using those then you don't need RavenDB or any other implementation. I believe the NServiceBus.Core binary by default comes bundled with RavenDB DLLs, but it won't be needed in production in your case.
If I understand correctly, you could also use the NServiceBus.Lite profile which I believe uses in memory persistence. This is a great way to go as you are developing and trying to learn NServiceBus. However, I'm not sure you'd want to do so in production. It would be a better practice to have some persistence either in a database or file system to ensure reliability of your application in the case of errors or application restarts.
