/janus-prometheus-exporter

Primary LanguageJavaScript

Janus Prometheus Exporter

Scrape metrics from Janus server and export to Prometheus.

Installation

npm i -g nodemon
npm i
npm run start

Configuration

  1. Enable broadcast under [events] in janus.jcfg
  2. Configure event handler plugin janus.eventhandler.sampleevh.jcfg
[general]
enabled = ye
events = all
grouping = yes
backend = http://localhost:8085/event

Implemented metrics

WebRTC

  • Number of active websockets
  • Total websocket connections
  • Total websocket disconnects
  • Total peer connections
  • Total ICE connections
  • Total ICE disconnects
  • Number of media streams [audio,video]

VideoRoom

  • Number of active rooms
  • Total rooms
  • Number of active users
  • Total users
  • Average user session duration
  • Number of publishers
  • Number of subscribers
  • Total subscribing (after offer/before answer)
  • Total subscription errors

Development & Testing

  1. docker-compose up
  2. Edit your /etc/hosts file to resolve janus.local to 127.0.0.1
  3. Open chrome using binary e.g. /opt/google/chrome/google-chrome --ignore-certificate-errors --ignore-urlfetcher-cert-requests so that the self signed CA is trusted
  4. Visit janus.local:8080 and start a video room demo
  5. Scrape metrics using curl curl http://janus.local:8085/metrics