meraj_enigma

meraj_enigma

Terminate supervisor once all workers are done

Hello,

I have a supervision tree, where Application starts -> DynamicSupervisor -> Supervisor -> GenServer (worker).

Once the worker is done with it’s work, it looks like Supervisor still keeps running. Is there a way to stop/terminate the supervisor when it’s workers are done (even under normal exit).

Since the Supervisor keep running and not even reused, I think the app is leaking resource.

Thanks.

Most Liked

LostKobrakai

LostKobrakai

Sounds like you want to familiarize with the max_restarts, max_seconds setting. Because you don’t need that indirection to have that behaviour.

meraj_enigma

meraj_enigma

Thanks for the pointer. I looked into it more and this did the trick -

@impl Supervisor
  def init(args) do
    children = [
      %{
        id: Jobber.Job,
        start: {Jobber.Job, :start_link, [args]},
        significant: true,
        restart: :transient
      }
    ]
    options = [strategy: :one_for_one, max_seconds: 30, auto_shutdown: :all_significant]
    Supervisor.init(children, options)
  end

Looks like auto_shutdown option does it. Not sure if its the ideal solution!

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