How to monitor communication between two Erlang nodes

communication, erlang

Solution

How about a network sniffer, like tcpdump or Wireshark sniffing on 4369/tcp? Wireshark has a special filter for the erlang distributed protocol (see ERLDP in the list of built-in expressions).

For more low-level information about the protocol itself, see http://www.erlang.org/doc/apps/erts/erl_dist_protocol.html

Here's a capture sample, between a linux node and windows node:

Problem

I'm playing around with distributed Erlang. It's a great fun, but I want to reveal the magic a bit and see what is actually being sent between Erlang nodes. Could you please suggest any Erlang modules or external tools available for this? Thank you in advance! UPDATE: BTW, Debian users can install Wireshark using `sudo apt-get install wireshark`

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