Coming from a non-BEAM language, I’m used to configure production services to send an alert message every time an exception occur on the server. I found that with beam’s fault-tolerance, this approach no longer works because Elixir errors aren’t necessary as bad: a process dies, its supervisor restarts it and the app keeps running fine. Getting an alert for each error raises a lot of false positives. Most of the time when we get an error alert, we check the app and it’s still behaving as it should. Yet, it’s still interesting to get information about these errors as it gives valuable feedback about how our app behaves. I’m thinking of turning off these alert messages while still logging errors and instead setup custom health checks based on expected observable behavior of our app. I’m wondering if some of you might have gone through a similar path when migrating to Elixir and what is your approach to monitoring the health of your app.