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Question

Jupyter Notebook is not working

  • April 7, 2026
  • 2 replies
  • 25 views

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Hi team,

I’m unable to launch or use the Jupyter Notebook environment on the Cognite Data Fusion (CDF) platform. The notebook either fails to start, gets stuck while loading, or does not open at all. I have tried refreshing, restarting the session, and switching browsers, but the issue persists.

 

 

Please let me know if there are steps I can take to solve this issue.

Best Regards

2 replies

Sofie Haug
Seasoned Practitioner
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  • Cognite Academy Instructor
  • April 7, 2026

Hi ​@Suhanee Hingorani 

I’m not able to reproduce the issue you are facing. What browser are you using? Can you try a different browser to check (preferably Google Chrome). 

 

Best regards, 


Shun Takase
MVP
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Hi ​@Suhanee Hingorani 
 

I’ve experienced this issue occasionally as well. It seems that Jupyter Notebooks on CDF run using the browser cache, so when you work with large datasets or run heavy processing, the browser can run out of memory and the notebook may stop working or fail to load.

In such cases, clearing the browser cache may help and allow the notebook to work again.
However, please note that clearing the cache will also delete any Jupyter Notebook scripts (.ipynb files) you have created, so I recommend regularly backing them up to your local machine.

I hope this helps.