I agree with most of the recommendation in this article (thanks for publishing it!), but the advice about futures should be taken with a grain of salt. You need

I agree with most of the recommendation in this article (thanks for publishing it!), but the advice about futures should be taken with a grain of salt. You need to be careful with futures because they swallow exceptions. However, the solution given (setting a global exceptions handler), while sound advice in general, doesn't actually solve the problem of hidden errors, as futures catch all exceptions and return them (so the caller can handle the failure in whatever way it prefers). If your goal is "fire and forget" behavior (e.g. sending off a confirmation email), then it's better to use java.util.concurrent.Executors directly. It's actually easier than it sounds: https://gist.github.com/pesterhazy/c41786690ee0f8a3e5a21f88fa4a486a https://gist.github.com/pesterhazy/c41786690ee0f8a3e5a21f88f.... Also see https://stuartsierra.com/2015/05/27/clojure-uncaught-exceptions https://stuartsierra.com/2015/05/27/clojure-uncaught-excepti...