MQTT on OH2 - help needed

Setup, Configuration and Use Beginners
2

Hi @waltert,

Let’s validate a couple of things (step by step) to get this working.

First of all: Check if the binding is correctly installed and up & running:

Try not to use manual installation methods but rather use Paper UI for installing bindings.

  • Remove the .jar mqtt binding files from /usr/share/openhab2/addons/
  • Install MQTT (binding-mqtt1) from Paper UI
  • Use mqtt1 (not mqtt) for the binding= name in your /etc/openhab2/services/addons.cfg (since MQTT is still a 1.x binding)
  • Fix your /etc/openhab2/services/mqtt.cfg (not runtime.conf) file to contain something like:
mosquitto.url=tcp://localhost:1883
mosquitto.clientId=openhab
mosquitto.qos=0
mosquitto.retain=false
mosquitto.async=true

and post some log output from /var/log/openhab2/openhab.log related to MQTT.

You can enable DEBUG level of logging for this binding from the Karaf Console (ssh openhab@localhost -p 8101 with password habopen) by:

log:set DEBUG org.openhab.binding.mqtt

Ps: A lot of the MQTT binding info that you will find online refer to OH1. There are some differences in OH2. These are explained here: http://docs.openhab.org/tutorials/migration.html