After updating Grafana, one of my panels is now showing an error: “All queries must use the same datasource”.
It used to work but not anymore.
It’s a simple expression which is the sum of 4 queries using 3 different datasources (all Prometheus DS).
The queries work but when I add the expression and hide the queries, I get the error message.
How can I do maths on my queries if they are using different DS (which was working perfectly until a recent update)?
Thanks,
JC
What Grafana version and what operating system are you using?
8.2.1
What are you trying to achieve?
Expression/calculation based on multiple datasources
How are you trying to achieve it?
Multiple hidden queries, expression using $A + $B + $C + $D
What happened?
It was working until last update, now showing “All queries must use the same datasource”
What did you expect to happen?
My expression to show the result = sum of 4 queries
Can you copy/paste the configuration(s) that you are having problems with?
There are 4 queries using count(system_uptime{}), and then I sum all results into one expression.
Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
Exclamation mark message on the top-left corner of the panel: All queries must use the same .datasource
Did you follow any online instructions? If so, what is the URL?
n/a
