Fix Cloudbeaver Trino authentication failed error

Fix Cloudbeaver Trino authentication failed error

If you prefer guides as a video with verbal instructions, please scroll to the bottom of the page.

  1. Go to the Jupyterhub URL you have been given and log in.

  2. When you are logged in to Jupyterhub and your user area has been created, you should see a Launcher like the one below.

  3. Click on the “Cloudbeaver” icon and wait for it to open in a new tab.

    Screenshot 2026-01-07 at 16.18.05.png
  4. When it opens, double click on the connection name on the left hand side. It doesn’t matter if it’s the one under the “Private” heading or the “Shared” heading, they’re the same one. This will open a pop-up for you to enter your username and password. At this point it doesn’t matter if you select the “Don’t ask again during session” box or not. Click “Login”.

  5. Screenshot 2026-01-07 at 16.21.41.png
    Screenshot 2026-01-07 at 16.21.26.png

    Cloudbeaver should load and look like the image below. You’ll see headings like “Tables”, “Views”, and “Indexes” on the left hand side of the screen. This means we’ve hit a bug in Cloudbeaver and we’ll get authentication errors if we try and do anything else.

  6. Screenshot 2026-01-07 at 16.22.47.png
    Screenshot 2026-01-07 at 16.25.03.png

    To fix this, right-click on the connection name on the left hand side (the same one you double-clicked to start with) and select “Edit Connection” from the menu that opens.

  7. Screenshot 2026-01-07 at 16.26.36.png

    In the pop-over that opens, enter your username and password in the boxes in the “Authentication” section, outlined in red in the screenshot. Tick the “Save credentials for the current user” box.

  8. Screenshot 2026-01-07 at 16.28.31.png

    Click on the “Test” button in the top right, and you should hopefully see a box with a green tick saying “Connection is established”.

  9. Screenshot 2026-01-07 at 16.29.28.png

    Click the “Save” button in the top right. The pop-over will go away and it will tell you the connection has been updated and ask you if you want to reconnect. Click the “reconnect” button.

  10. Screenshot 2026-01-07 at 16.29.50.png

    The Trino connections on the left hand side should now update to show catalog names instead of “Table”, “Views”, etc. If you click one of the catalogs (e.g. iceberg) you should see a list of schemas in there. If you click a schema, you should see all tables in that schema. Double-clicking on a table will load it into the Cloudbeaver UI for you.

    Screenshot 2026-01-07 at 16.33.12.png
    Screenshot 2026-01-07 at 16.33.27.png

     

Video guide

trino-cloudbeaver-auth-error.mov