Error creating source: [Errno -2] Name or service not known

[kanwarplaha]

I have got basic setup going and connected open notebook to ollama. My default model, gemma3, is also selected and accepted in the settings.

When creating a new Notebook, when I add a source, I get this error in the logs:

2025-08-20 00:43:02.366 | DEBUG    | pages.stream_app.source:add_source:73 - Adding source
2025-08-20 00:43:05.739 | ERROR    | api.routers.sources:create_source:149 - Error creating source: [Errno -2] Name or service not known
INFO:     127.0.0.1:50848 - "POST /api/sources HTTP/1.1" 500 Internal Server Error
2025-08-20 00:43:05.742 | ERROR    | api.client:_make_request:46 - HTTP error 500 for POST http://127.0.0.1:5055/api/sources: {"detail":"Error creating source: [Errno -2] Name or service not known"}

Can someone explain what this error indicates? The source I am adding is a web url.

Screenshot from the UI:

[kanwarplaha]

UPDATE: The sources do get listed but if I try and perform any action, the same error results:

I have a web url and a pdf but cannot perform any action of either.

[lfnovo]

Your Ollama Base URL seems to be wrong. Can you show your docker-compose and env files?

[kanwarplaha]

Hello @lfnovo the BASE URL is set correctly. The models are picked up correctly in the settings page. My docker-compose.yml has the following set:

       - OLLAMA_BASE_URL=http://host.docker.internal:11434
       - OLLAMA_API_BASE=http://host.docker.internal:11434

I set both because OLLAMA_BASE_URL was not working and LLM providers were not being listed in settings. When I added OLLAMA_API_BASE, I could pick the provider and enter the model I wanted.

I can create new notebooks too and add sources. However, when I run a query or chat, it does not work.

[kanwarplaha]

Okay, after I posted the above, I think I got some more bits working. I changed both URLs to the name of the service, rather than the IP address of the host:

   environment:
        - OLLAMA_BASE_URL=http://ollama:11434
        - OLLAMA_API_BASE=http://ollama:11434

I still get error when I use "Ask Your Knowledge Base (beta)" but I can now chat with my local documents and sources.

Also, my requests get timed out:

ReadTimeout: timed out

How can I change this setting and where?

[lfnovo]

You are getting this error on the Ask Knowledge Base page, is that it?

[kanwarplaha]

@lfnovo not quite. I get errors when I try to get insights or any operation on any source from the notebook too. So, looks like there are no errors during setup but when any API call is made, the timeout error is thrown.

[lfnovo]

@kanwarplaha please look at the new document on Ollama - https://github.com/lfnovo/open-notebook/blob/main/docs/features/ollama.md -- let me know if this helps you find any new issue?

Are you still having trouble using the features?

If so, please reopen so we can investigate further.