If your Dask/Spark clusters are up and running and you can get your clusters to run code but are still having trouble getting the web UI to work, there are a few other settings to check. Please note that if you have not confirmed the clusters are running, you'll want to start with some general troubleshooting tips here: Troubleshooting Dask
The next steps will require admin access on your Domino deployment and/or backend access to kubectl so please engage with your local Domino admin as needed.
The first you'll want to navigate to Admin > Advanced > Central Config and verify this setting:
If that's not present or is set to false please set it to true and restart services to get the change to take effect.
Next, please re-test your workspace to see if the Dask/Spark web UI is now showing.
If that does not fix the issue, please create a ticket with Domino Support.
Before you create the ticket, please login to the backend and run the following scan from the central host:
kubectl get mutations -A
Include any output in your support ticket. If the above command did not return any results, please include that information in your ticket as well.