erlang - Meaningful auto-generated name for PID for debug purposes? -


there's process started task.supervisor.start_child, if went wrong elixir (erlang) prints error message this:

23:56:06.257 [error] task #pid<0.216.0> started #pid<0.137.0> terminating

it's hard understand process crashed. wonder if there's way give meaningful auto-generated names processes? error more descriptive, like:

23:56:06.257 [error] task #pid-request-handler<0.216.0> started #pid-socket-loop<0.137.0> terminating

you can name each desired process register/2 function:

erlang:

register(regname, pidorport) -> true

elixir:

register(pid | port, atom) :: true

then need implementing logger use process_info(pid, registered_name) function registered name of desired process pid , formatting log text name.

update: know error_logger event manager (gen_event). error, warning, crash, progress , info events sent error logger erlang runtime system , different erlang/otp applications. has default event handlers, sasl otp application adds more logging features application. can write own event handler , add error_logger event manager.


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