Hi, unfortunately there is not a out of the box HA option for MQTT Client agents.
- You can have both MQTT Client agents active (active-active pair) and do the data processing in the destination system
- In case where multiple connections are not allowed by the MQTT Broker, you can develop a script to monitor KEPServerEX installs and enable/disable MQTT Client agents based on the status of KEPServerEX installs. KEPServerEX has a RESTful API for configuration and you can modify the project remotely. For such kind of development, you can use this python SDK, where it makes enabling/disabling agents easier: GitHub - PTCInc/Kepware-ConfigAPI-SDK-Python: A Python SDK for connecting and managing Kepware with the Configuration API
Best,
Tahsin
