is it possible to sum two or more metrics with influxql (or may be with flux) rather than stacking graphs or executing an expressions on them ?
For example - sum of two metrics: uplink and downlink traffic.
I.e. it possible to perform simple calculations on the metrics while retrieving them from database?
I mean something like a+b, b-c, (a+b+c)/(d+e+f).
Have you already tried using Transformations?
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As i can see - transformations take the metric and perform calculations with it. But i can’t find a transformation which could do “metric1 + metric2” for example
Have you tried something like this?
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Thank you, Grant
Will check this.
msgluck, you are my hero! Expression is the solution for my calculation problem.
I did see the “+ Expression” button, but somehow ignored it
is there any way to add more than two metrics together besides doing only 2 at a time step by step with intermediate expressions?
In Grafana’s built-in transformations, I do not believe you can do more than 2 at a time. If your datasource has good query-building functions, you can (and perhaps should) do the math there.
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