Thanks! пятница, 19 июня 2020 г. в 18:46:00 UTC+12, [email protected]:
> Disk yes, memory no. Prometheus uses mmap to read the on-disk data. > > On Fri, Jun 19, 2020 at 12:31 AM [email protected] <[email protected]> > wrote: > >> But would is there memory and disk usage overhead? >> четверг, 18 июня 2020 г. в 23:25:51 UTC+12, [email protected]: >> >>> IMO, you shouldn't be doing this at all. For all devices, simply store >>> the raw ifHCInOctets / if HCOutOctets (etc) in prometheus. Then when you >>> want to graph it or alert on it, use a PromQL query using rate() or irate(). >>> >>> Storing the raw data keeps you closer to the source of truth, and makes >>> it easier to debug, be able to observe counter resets, etc. You can also >>> answer questions like "what was the average rate over 5 seconds? Over 30 >>> seconds? Over 5 minutes?" using the same source data. >>> >>> If for some reason you end up with some specific queries that are too >>> expensive to run, then you can use recording rules to generate the results >>> or partial results. But remember there are other ways to improve query >>> performance for dashboards, e.g. https://github.com/Comcast/trickster >>> >>> -- >> 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/c4b5f9fc-a40a-4198-88e0-2d3ca3ce1e33n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/prometheus-users/c4b5f9fc-a40a-4198-88e0-2d3ca3ce1e33n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- 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/b75e0a19-16d0-44c3-87e5-a2c0467cd1e6n%40googlegroups.com.
