- What Grafana version and what operating system are you using?
v9.5.5 on Ubuntu Linux 22.04
- What are you trying to achieve?
I have two data sources I’m combining data from, one of which is a local database and the other one is an external calculation engine. I then need to compare outputs from both, on a chart.
The external engine has a data processing delay of several hours.
What I want is to prevent displaying data from the local database if there’s no data from the other source for the selected period. In other words, I only want one chart to show up if the other one is also available. Either both, or none; never just one.
- How are you trying to achieve it?
I have no idea how to do it 