Device control plane event configuration

[pranavkumaradarji-eaton]

Our project’s codebase is using EdgeX version 2.3. We are currently testing control plane events for device CRUD operations. We attempted to add a new device and listened on the MQTT topic ‘edgex/system-events/#,’ but we didn’t observe any events being generated.

Question: Is there any configuration tweak required to enable device control plane event functionality?

[cloudxxx8]

The system event will be sent to Redis pub/sub by default. Have you configured core-metadata to use MQTT message bus?

[pranavkumaradarji-eaton]

Yes, Core-metadata is configured to use "MQTT" message bus, and also changed PublishTopicPrefix = "edgex/system-events" , still events aren't received. @cloudxxx8

[cloudxxx8]

OK, it should work by design and implementation. We may see if there is anyone from the community can help on this.

[M0hanrajp]

Hello @pranavkumaradarji-eaton,

Could you try checking what error might be posted by the logs by referring the doc EdgeX Foundry Container Logs
?

I also faced a similar issue, to send the EdgeX data to a public MQTT broker hosted by HiveMQ. You can then watch
for the EdgeX event data via HiveMQ provided MQTT browser client. Here I was not able to receive any events over
HiveMQ. I was running the example from the doc Exporting Data

By using the logs generated from the core services I think I ran into BROKER_ADDRESS being not identified.

Still not fixed my issue, but you can follow the below documentation for more info of your error.

Thanks.

[cloudxxx8]

does your codebase contain this PR?
https://github.com/edgexfoundry/edgex-go/pull/4101/files
we tested and it worked before