This is a really a question about grafana rather than prometheus - as far as I know, grafana can't do that.
I believe you can install promxy <https://github.com/jacksontj/promxy>, and point grafana at promxy, and promxy will combine results from multiple prometheus backends. I haven't deployed it myself. The approach I use is to have multiple prometheus servers perform remote_write into a single VictoriaMetrics instance, and point Grafana at that. That means that "global" queries don't need to touch multiple backends. -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/39748162-97e3-4d69-878f-9a49c0943005%40googlegroups.com.

