Azure Injector not publishing after Tag Agent modification

General Discussion
1

Hi everyone,

After modifying a Tag Agent configuration (changed tag path and provider), the system stopped publishing data.

The Azure IoT Hub connection remains in CONNECTED state and no errors appear at the connection level. However, no data is being published anymore.

The logs show the following error when saving the Tag Agent:

[AzureAgentResourceHandler] Failed to find the PushPolicy for [Tag Agent]

Recreating both the Tag Agent and the Push Policy did not resolve the issue, and reconnecting the IoT Hub also had no effect.

Ignition version : 8.3.4
Azure Injector : 5.0.2

2

Did you find a solution to the error. I'm having the same problem.

3

Hi, not yet unfortunately.

I’m still looking into it, but I haven’t found a working solution so far. The issue seems to persist even after recreating the Tag Agent and Push Policy.

If I manage to figure it out, I’ll update the thread.

4

Hi,

I think I found a workaround that solved the issue for me.

I simply disabled the Azure module and then enabled it again. After doing that, publishing started working normally.

From what I observed, it also seems that after modifying a Tag Agent configuration, the module may stop subscribing to the configured topics. The connection to Azure IoT Hub remains in the CONNECTED state, but no data is actually published.

If disabling and re-enabling the module doesn't help, deleting the Tag Agent and recreating it from scratch also resolved the problem in my case.

I'm not sure if this is the root cause, but it looks like the subscription isn't always restored correctly after configuration changes.