On 20.03.23 03:28, Brian Candler wrote: > > Note - I have no bucket metrics for histogram. > > What you say doesn't make sense to me. What you showed *is* a histogram, > and the metrics *prometheus_rule_evaluation_duration_seconds* *are* the > buckets.
Strictly speaking, it's a summary, and the metrics labeled with "quantile" are precalculated quantiles. Cf. https://prometheus.io/docs/practices/histograms/ > Therefore, if those are the metrics you have, then the 50th percentile is > simply > prometheus_rule_evaluation_duration_seconds{quantile="0.5"} > and the 90th percentile is simply > prometheus_rule_evaluation_duration_seconds{quantile="0.9"} > > There is no need to "calculate" the p50/p90/p99 latencies because you > already have them. That's correct. Note that there is no way to further aggregate the pre-calculated quantile (or change them for example to a different quantile or to a different time interval). If you need aggregatability or more flexibility for add-hoc queries, you have to use an actual histogram in your instrumentation of the monitored target (either the classic histograms or the new experimental native histograms). -- Björn Rabenstein [PGP-ID] 0x851C3DA17D748D03 [email] bjo...@rabenste.in -- 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 prometheus-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/ZCGTQddnGDnFW5vL%40mail.rabenste.in.
