Created question in FIWARE Q/A platform on 26-02-2020 at 18:02
Please, ANSWER this question AT https://stackoverflow.com/questions/60419637/iotagent-ultralight-over-mqtt-is-not-processing-values-from-mqtt-broker

Question:
IotAgent UltraLight over MQTT is not processing values from MQTT broker

Description:
I am following the tutorial under:
https://github.com/FIWARE/tutorials.IoT-over-MQTT

Steps 1 to 3 are followed exactly as in the tutorial (working fine), in Step 4 I am using mosquitto_pub to publish the message to the MQTT broker.

The MQTT message does not get processed by the IotAgent, however. I can see this when I try to retrieve the data from the Context Broker as in Step 5.

Using the debugger with:

docker exec -it [IOTAGENT CONTAINER] pm2 monit

also shows nothing happening when the MQTT message is published. I have tried the messaging formats below:

mosquitto_pub -t "/4jggokgpepnvsb2uv4s40d59ov/motion001/attrs" -m "c|1"
mosquitto_pub -t /4jggokgpepnvsb2uv4s40d59ov/motion001/attrs -m '

'

The Mosquitto broker is running and can be subscribed to.
Am I missing a parameter? What could be the reason that the IotAgent is not working as expected?
I had tested the setup successfully some months ago, but unfortunately the testing parameters are not available anymore.