Callback kept at 'Updating'

Dash Python
1

I have a very long callback that mostly runs successfully to the last line returning a large dash_pivottable item. However, a lot of the time - it seems like it takes forever for the dash app to load it. I tested it locally and it works reasonably - and sometimes when I expose it to other users, the same thing could happen occasionally.

Would like to see how I can work on that?

Thanks!

2

HI @pp123123 welcome to the forums.

Are you using background callbacks for this? At least you could show a dcc.Loading() or dbc.Spinner() while the callback is executed.

3

I am currently already using a dcc.Loading() so that I can see that it is running - but it seems like sometimes it is just getting stuck. Do you think background callbacks can solve the issue?

Thanks!

4

Hard to tell without knowing anything of your architecture. But you might run into timeouts as described in the link I posted above.

I would just try the background callbacks.

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