Establishing Supervision Strategies

As you’ll recall, when we build a child spec, we define the naming and lifecycle strategies our supervisors will apply to child processes. In general, this configuration code guides OTP in building the lifecycle.

Starting a worker

Let’s talk about what happens when we start a worker:

• At startup, the worker will go down the list of child specs and start each of them using the child specs.

• Some of those child specs will identify other supervisors or applications. Our application.ex child list has both.

• Application.start then walks down a list of children and starts each ...