Widget value not synchronized after detach/reattach

varni — Fri, 11 Jul 2025 11:11:33 GMT

Hello Databricks Team,

I hope you are doing well.

I’m working with dbutils.widgets in a Databricks notebook using the Accessed Commands mode, and I have encountered some challenges.

Specifically, after detaching and reattaching to the cluster:
- the widgets remain visible in the UI;
- however, their values are no longer properly synchronized with the backend;
- Accessed Commands do not automatically trigger when widget values are changed;
- and in the code, we continue to see the old value, even though the UI shows the updated one.

What we have tried:
- Using Run Notebook mode, but this is not suitable as it executes the entire notebook, whereas we only want specific cells to run.
- Using Do Nothing mode, but this requires manual cell execution, which we want to avoid.
- We have also considered switching to ipywidgets, but are concerned about potential instability or synchronization issues, especially after reattaching.

Our goal:
- Ensure that after detaching/reattaching and changing a widget value, only the relevant cells (Accessed Commands) are executed.
- Make sure the code consistently picks up the updated widget value, without requiring a full notebook rerun or manual intervention.

I would be grateful if you could let us know:
- Is this a known limitation of Databricks widgets?
- Are there any recommended workarounds or best practices to achieve this behavior?

Thank you very much for your time and support.

Best regards,

Re: Widget value not synchronized after detach/reattach

Khaja_Zaffer — Sun, 13 Jul 2025 06:54:56 GMT

Hello there

Can you please share the code used for widgets?

also if you change mannually, is it working? (did it worked before?)

Are you trying to load via some parent notebook?

Waiting for your response.

topic Widget value not synchronized after detach/reattach in Data Engineering

Widget value not synchronized after detach/reattach

Re: Widget value not synchronized after detach/reattach