In these days of web scale and microservices, gracefully handling faulty or crashing backend web services becomes increasingly important. As long as your application uses just a handful of such backends, there’s no problem. But what if you have hundreds of them? How will you prevent your application from the negative effects of inevitable incidental crashes or timeouts when contacting other web services? In this talk, we’ll take a real-world example from a web scale system. This system is targeted at 10 million users and has around 400 heterogeneous backends. Akka and Scala power a system that is capable of running smoothly even when some backends might not be so stable.