For the Kafka sink configuration, ensure to use the correct Kafka address with the appropriate port. When defining the sink, use the hostname of the Kafka service within the docker-compose network.

For the Kafka source configuration, make sure to specify the correct Kafka address and use the container name as the hostname.

When encountering issues with hanging commands or connection errors, check the logs for error messages to identify the root cause.

Consider using the container name as the hostname for Kafka services within the docker-compose network to avoid connection issues.