MQTT to Azure IoT Hub

[garaujo23]

My goal is to be able to send axis metadata track ended events to Azure IoT Hub. My setup is:
Device: P3255-LVE
Firmware: 11.11.73

I have successfully enabled the Feature flag and can receive the track ended events via MQTT if i have a local broker. It also shows in the camera settings:

I have then followed the tutorial here: https://developer.axis.com/analytics/how-to-guides/send-telemetry-to-azure-iot-hub

I am able to get the Status to show connected and on Azure it shows 1 IoT device with the ID connected but constantly the logs on the device show disconnect events and no messages send.

2024-08-08T11:07:45.322+10:00 axis-b8a44f188bab [ INFO ] mqtt-messaging-service[1236]: Lost connection:
2024-08-08T11:07:50.393+10:00 axis-b8a44f188bab [ NOTICE ] actionengined-user[980]: Action rule "test" is starting action "Send MQTT publish message"
2024-08-08T11:07:58.864+10:00 axis-b8a44f188bab [ INFO ] mqtt-messaging-service[1236]: Lost connection:
2024-08-08T11:08:08.936+10:00 axis-b8a44f188bab [ INFO ] mqtt-messaging-service[1236]: Lost connection:
2024-08-08T11:08:11.162+10:00 axis-b8a44f188bab [ INFO ] monolith[962]: RTSP session hc-huvd3lySlfhx6 timed out.
2024-08-08T11:08:18.410+10:00 axis-b8a44f188bab [ INFO ] mqtt-messaging-service[1236]: Lost connection:
2024-08-08T11:08:26.869+10:00 axis-b8a44f188bab [ INFO ] mqtt-messaging-service[1236]: Lost connection:

I then tried it on a different device in a different network with the same firmware and I get the same Lost connection messages.

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[vivekatoffice]

Hi @garaujo23 ,
I can confirm that I can replicate the issue using this tutorial.

The logs snapshot for your reference:

Let me check if I can find someone who tested MQTT with Azure.

[vivekatoffice]

Hi @garaujo23 ,
We have noticed that not all steps in the guide (Last updated on Aug 1, 2024) were correct. E.g. it would be best if you did not tick the “Validate server certificate” on the MQTT settings page. See my settings below.

1. List All using featureflag.cgi
   

2. Set true using featureflag.cgi
   

3. Verify if set to true using featureflag.cgi
   

4. select topic MQTTevents using event.cgi
   

Finally, you need to change the topic in the camera to follow Azure's topic structure:

devices/device01/messages/events/

The Axis team behind the guide will make sure to update the guide as well. Let me know if it is working for you.

[vivekatoffice]

Hi @garaujo23 ,
Just to update the guide is updated now:

Send telemetry to Azure IoT Hub(Last updated on Aug 30, 2024)

Note

The CA certificate has been updated since Microsoft changed it on Azure IOT Hub side.
Now you should use the “DigiCert Global Root G2” instead of the “Baltimore cyber” and you can tick the “Validate server certificate”.

[garaujo23]

Thanks @vivekatoffice, confirmed it works on my end as well