In the previous section, we worked with supervisors and observed how they enable error-recovery. They're crucial components when building fault-tolerant applications, and they significantly change the mindset from the prevalent error-recovery mechanisms, such as try/catch. Having seen how we can use supervisors to detect and recover from runtime errors, we'll now focus on how we can combine them, creating supervision trees, to have fine-grained error recovery in our applications, reducing the effect of an error on the overall system.
To build a supervision tree, you must consider the effects on the rest of the system when a certain processes terminates due to an error. This way, you'll group ...
