Trouble Connecting DBeaver to Cassandra in Docker Container on Debian 12

I am facing a problem when trying to establish a connection between DBeaver Community and a Cassandra database that is running inside a Docker container on Debian 12. I have followed all the instructions provided in this excellent tutorial “DBeaver-community-edition no driver for Apache Cassandra on Mac” from @clunven, but when I run the ‘test connection’ step, I encounter the following error message:

Thanks to your suggestion, I was able to resolve the issue connecting DBeaver to Cassandra running in a Docker container. The key was in the port mapping, which wasn’t set up correctly.

When I ran docker ps, I noticed that the CQL port 9042/tcp was listed but without any host port mapping – it didn’t show the expected 0.0.0.0:9042->9042/tcp. This meant that while the port was exposed within the Docker network, it wasn’t accessible from my local machine.

Based on your recommendation, I stopped and removed the existing container and then ran a new container with the correct port mapping using the command:

docker stop cassandra-testing
docker rm cassandra-testing
docker run --name cassandra-testing -p 9042:9042 -d bitnami/cassandra:latest

After this simple change, I was able to successfully connect to Cassandra through DBeaver using localhost as the host and 9042 as the port. Your insight was invaluable, and I appreciate your help!