Dremio oss 26.0 UI: Incorrect paths for source

A potential bug has been identified in the User Interface (UI) of Dremio version 26.0 OSS when working with Project Nessie data sources. Dremio incorrectly generates URL links for objects (folders/tables) within a Nessie source in the “Datasets” navigation panel. The generated URLs use the /space/ prefix instead of the expected /source/<source_name>/. This prevents users from opening or navigating to these objects directly through the UI, as the generated path is invalid.

  • Dremio Version: 26.0 OSS Edition
  • Data Source Type: Project Nessie
  • Affected Component: Dremio Web UI (specifically the “Datasets” section / navigation tree)

Steps to Reproduce:

  1. Set up and connect a Project Nessie data source in Dremio 26.0 OSS.
  2. Within the Nessie source, create or add an Iceberg table or a folder containing other objects. For instance, create a folder named dagster.
  3. Navigate to the “Datasets” section in the Dremio web UI.
  4. Expand the navigation tree for the Nessie source (nessiemain → …).
  5. Locate the object (folder or table) that exhibits the issue, for example, the folder dagster.
  6. Hover over or click on the name of this object in the UI navigation tree.
  7. Then you will get an error folder nessie.dagster at [/space/nessie/folder/dagster] not found.

Expected Behavior:

When hovering over or clicking the object (dagster in the example) in the UI, Dremio should generate a URL link that starts with /source/<source_name>/..., for example, /source/nessie/main/dagster. Clicking this link should navigate the user to the next folder.

Actual Behavior:

Dremio generates a URL link that starts with /space/, for example, /space/nessie/folder/dagster. Attempting to click the object in the UI results in a redirection to this incorrect URL, leading to an error or a non-existent page because the /space/... path is not a valid path structure for data sources.


Hi @klimnyk, Thanks for the detailed explanation!

We are aware of this issue and we are working on a fix.

1 Like

i have same issue did you fix it?

my dremio version is:

and error is in dremio:9047:
image

folder nessie.analytic_tables_from_airflow at [/space/nessie/folder/analytic_tables_from_airflow] not found

but via dbeaver i can see and use it:
image

Not yet, for now.
I don’t use the UI very often, so I haven’t really looked for a solution. But one option could be to constantly replace /space/ with /source/ in the URL after each click. (Or access it through SQL Runner instead of the Datasets tab.)

It’s really annoying, and the OSS team doesn’t seem to be in a hurry to push any updates.

1 Like

Hi, I have this issue now for months. @isha Is there a fix available, or will it be released soon?

OSS updates are usually released every 1 to 6 months, typically with major versions.
Right now Enterprise is at 26.0.5, so most likely you’ll have to accept that it may take up to 6 more iterations before 26.1.0 appears — and there’s no guarantee it will be OSS.
Patch updates are released every month.
Check Semantic Versioning.

Please check OSS now. I believe the fix should be included in the push that happened earlier this week.

1 Like

I updated to 26.0.5-202509091642240013-f5051a07

My Docker Compose configuration: https://github.com/Klimnyk/likehouse

but the issue with the incorrect URL remains.
This path is generated when navigating through the links:
-host-url-/space/nessie/folder/automoto
The correct path should be:
-host-url-/source/nessie/folder/automoto