Out of memory on Elixir/Phoenix app when connecting `iex` session

Phoenix
3

Thanks for the response.

It’s pretty uninteresting at the moment :slight_smile: I generated the app under Phoenix 1.5.8 and recently upgraded to 1.6.6. It has phx.gen.auth authentication added, and it has a single JSON API endpoint. Nothing much else going on at the moment. You can find it here.

The actual code I was running in iex was the user registration function that phx.gen.auth generates for you:

def register_user(attrs) do
  %User{}
  |> User.registration_changeset(attrs)
  |> Repo.insert()
end

I noticed that these lines are logged as soon as I run /app/bin/<name> remote. Seems like something is happening with a child process straight away?

2022-01-28T14:53:31.166 app[3b89ab36] lhr [info]Reaped child process with pid: 611, exit code: 0
2022-01-28T14:53:31.167 app[3b89ab36] lhr [info]Reaped child process with pid: 613, exit code: 0
2022-01-28T14:53:31.169 app[3b89ab36] lhr [info]Reaped child process with pid: 632 and signal: SIGUSR1, core dumped? false

I also played around some more in iex - created some other records etc and it worked fine. But if I call the register_user function it kills iex every time.

Interesting. Yes, seems like this app should be fine.

:thinking: