Sorry, but I'm afraid you cannot backfill historical data into prometheus. Prometheus will only scrape the current/latest value. Backfill is a feature being considered for the future <https://prometheus.io/docs/introduction/roadmap/#backfill-time-series>.
For now, you will need to look at a different storage engine. I suggest VictoriaMetrics, which is prometheus-compatible (i.e. it supports prometheus API and promQL and can be configured as a remote-write endpoint for prometheus) and it *does* support the back-filling that you want to do. However it's not a remote-read endpoint, so for example prometheus' alerting engine can't read data from it. If you're only ingesting daily then this is unlikely to be a limitation. Also check out other storage integrations <https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage> which support both remote write and remote read, as you could populate the backend directly but prometheus can still read from them. -- 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/fc3f5c0b-c187-4698-9028-14144a7f38c4%40googlegroups.com.
