I have a network of sensors passing data to influxdb. Each sensor has a unique ID, used as a tag in Influx.
Let’s say we start with 100 sensors (and therefore 100 different tags). Over time, some sensors get damaged, unplugged or otherwise incapacitated.
What I would like to do is show a chart over time of how many distinct tags are reporting data.
I’m relatively new to Grafana, but I’ve been able to solve most of the other (self created) problems I’ve run into. However, I’m totally stuck on how to approach this one.
All suggestions welcome.