IRuby not starting control_port

[matugm]

Hi,
I'm trying to use Atom's Hydrogen plugin.

It's not working & I tracked it down to the control_port not being open.

Using Wireshark you can see how Hydrogen keeps trying to connect to the control_port, but since it's not open then it doesn't work.

The plugin runs iruby like this:

iruby kernel /run/user/1000/jupyter/kernel-1668f7b9-c2c3-431b-99cb-2acabe4a00de.json

Where the json file contains:

{
  "version": 5,
  "key": "9b96aefa-77ba-4ac3-9178-2f13872ffe5e",
  "signature_scheme": "hmac-sha256",
  "transport": "tcp",
  "ip": "127.0.0.1",
  "hb_port": 9000,
  "control_port": 9001,
  "shell_port": 9002,
  "stdin_port": 9003,
  "iopub_port": 9004
}

Checking with netstat, all ports are open but 9001. Changing the port number to something else doesn't help.

Ruby Version:

• Ruby 2.5.0

Gems:

• czmq-ffi-gen (0.15.0)
• cztop (0.13.1)
• iruby (0.3)

It would be nice if we can get this to work :)

Any ideas?

[kojix2]

Hello @matugm.

IRuby doesn't have a control port yet.
#185