I’ve built a supervision tree and I’m testing it out using observer (via :observer.start()).

I’m finding that performing Process.exit(one_of_the_child_pids, :kill) is unexpectedly also causing the supervisor itself to restart. Assuming that the observer processes GUI is giving me a complete picture of process links, which I assume it must be, I don’t see any way that this could be the case. I’ve experimented with passing silly values to max_restarts in the Supervisor but ultimately I’m stabbing in the dark here.

I’m absolutely certain this is down to some lack of understanding on my part. My question is; what’s the best way of determining why a supervisor has exited and/or debugging this sort of problem? Are there any good debug tools available?