Is a gen_server is up?

Return tuple with timeout 0 from init . Then immediately after it returns handle_info(timeout, State) will be called. In handle_info make some call which won't return until the supervisor finishes initialization (e.g. Supervisor:which_children ).

This is my case to handle this issue. This worker process is triggered only when it is requested.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.