This depends a lot on what the process is doing, but in general you want to avoid infinite awaits and instead rely on an async method of completion notification.

To be clear, this is not about the await call itself. I could, for example, use Relay.async from a GenServer and handle the response messages myself similar to how one might interact with a Task.

Choosing to use Relay.await and block on a response vs listening for a response in a non-blocking manner is orthogonal to this question.

The question is if Relay will reliably return a response, or if it is possible for a response to be drop (or infinitely delayed). Any idea @sorentwo ?

Hey all sorry for the forum noise, all the relevant posts should be here now. @sorentwo requested that I move these posts since he wanted a chance to dig into the questions here in more depth without cluttering up the general thread.