[Feature request] Alerting - Add option If no data or all values are null SET STATE TO "OK"

[amuraru]

Sometimes no value returned by a query means everything is ok.
It would be useful to have this option in the Alerting tab:
If no data or all values are null SET STATE TO "OK"

[bergquist]

@amuraru Wouldn't this be the same as Keep last state?

[f1nger]

I also need it. I have a graph with some errors, where 100 errors - it is an alert, but 0 errors (no data) - that's OK.
Now 0 errors after Alert - is state "No Data" or still state Alert (Keep Last State).

[amuraru]

Wouldn't this be the same as Keep last state?

Not quite @bergquist - imagine you have a graph where only errors are graphed. Then if last state is kept an error alert would be fired.

[joostfaassen]

@bergquist It looks like SET STATE TO "OK" was there, but was removed in this commit:

489f087

Hopefully this helps in restoring the feature

[svenmueller]

Yes, we also have the usecase where we want to alert in case of responses with status code 5xx but not when having no 5xx response (= all fine).

[bergquist]

Will be available in 4.1.0

[svenmueller]

Thx for the heads up 👍