I have big problems with influxdb and grafana.
The datas will be not stored and i can not longer login in grafana UI.
So i will try it to install new, but in first i would remove everything.
How can i remove influxdb and grafana completely with all config files?
Not sure what OS your using but maybe this will help:
It is openhabian 2.5 on an pi4.
See the link posted above.
The influxdb is working again.
But also i can not login in the grafan UI, i use the user:admin and as pw:admin
Is there a file that must delete, to reset grafana users?
Not sure what the file is but you can uninstall/reinstall grafana as well.
The short version:
sudo apt-get purge grafana
and then re-install with
sudo apt-get update
sudo apt-get install grafana