Control Center provides useful information around the health of Kafka as well as allowing you to configure Connect tasks more easily than using the REST API.
Ensure you have Control Center installed and access it with
make open-control-center
This'll open an SSH tunnel to the container running Control Center and open it in your browser, or you can access it over https://127.0.0.1:9021
The first screen that comes is the System Health and displays information about your Kafka cluster, it should look like this
Complete Connect Testing which sets up a Connect source and sink to populate data. It will then look like