Eliminating EPMD from my Elixir cluster I run three Elixir apps on my mail server — CountryCheck, MailMan and Webmail — clustered together via distributed Erlang so they can share PubSub messages. This has been working fine, except for one annoying problem: restarts. The problem When a service restarts, EPMD (the Erlang Port Mapper Daemon) sometimes still holds the old node name registration. The…