Interval keeps firing

Dash Python
1

Hey,
I have a webservice with a dcc.Interval which sends heartbeats. However something went wrong inside the interval callback and it now throws an error every minute for the past 2 days. Some user might still have a cached version open? I tried to delete the interval and callback but then it keeps throwing this error:

"Callback function not found for output 'heartbeat.disabled', perhaps you forgot to prepend the '@'?"

I would appreciate any insights. The service is deployed on render

2

As you note yourself, this seems to indicate that someone has an old copy of your app open. If you make sure all copies are closed/refreshed, it should go away.

2 Likes
3

Thanks for your answer, but is this even possible to achieve?

4

Okay I just replaced it by this for now.

@callback(
        Output('heartbeat', 'disabled'),
        Input('heartbeat', 'n_intervals')
)
def heartbeat(n):
    try:
    ...
    except:
       return True