How to convert remote pid to node name?

Question

When deciding one client parameter structure to one OTP gen_server, is it necessary to insert both Pid and Node name into the parameter structure?

Given one remote pid, is it possible to convert pid to node name? I mean full node name, like "[email protected]".

Answer 1

Calling node(Pid) will return the name of the node on which Pid resides.

Answer 2

Can someone explain the structure of a Pid in Erlang?

How do I found out which node an erlang process is running on?