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/9b7ff64f-e883-438f-8601-c36f7623bb02o%40googlegroups.com.
