Troubleshooting a disabled Dask/Spark web UI

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:

com.cerebro.domino.computegrid.computeCluster.dask.disableIstio

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.