The difference should work - just remove the cluster from by(...) list:
histogram_quantile(0.50, sum(rate(ampq_bucket{cluster="first"}[15s)) by
(le))
-
histogram_quantile(0.50, sum(rate(ampq_bucket{cluster="second"}[15s)) by
(le))
See more details about time series matching during binary operator
execution in PromQL -
https://prometheus.io/docs/prometheus/latest/querying/operators/
On Thu, Feb 11, 2021 at 12:56 PM Hozapero <eidmantasivanaus...@gmail.com>
wrote:
> We have a histogram metric with lots of "le" bucket. I usually use
> histogram_quantile to see 50th percentile for this, etc. as such:
>
> histogram_quantile(0.50,
> sum(rate(amqp_bucket{env="prod"}[$__rate_interval])) by (cluster,le))
>
> We have a few clusters which run the same service with the same metrics. I
> would like to see a difference comparison (to see how much faster/slower
> the calls are in an another cluster for the same services).
>
> Is there any way to do difference with histogram_quantiles?
> Something like
>
> histogram_quantile(0.50, sum(rate(ampq_bucket{cluster="first"}[15s)) by
> (cluster,le))
> -
> histogram_quantile(0.50, sum(rate(ampq_bucket{cluster="second"}[15s)) by
> (cluster,le))
>
>
> Thanks.
>
> --
> 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/3cd8f5cd-8f71-41f2-9ddf-112df72df115n%40googlegroups.com
> <https://groups.google.com/d/msgid/prometheus-users/3cd8f5cd-8f71-41f2-9ddf-112df72df115n%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
>
--
Best Regards,
Aliaksandr Valialkin, CTO VictoriaMetrics
--
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/CAPbKnmAEPF%3DWL%2BnhZ3inohTyR7mdPMw%3D%2BPjzLFRJ2xAwXhp6vQ%40mail.gmail.com.
