Just found some useful article might explain this behavior and share it with you. Really appreciate Stuart's explanation on this case!
- https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness - https://www.robustperception.io/staleness-and-promql - https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 [email protected] 在 2020年7月16日 星期四上午2:53:00 [UTC+8] 的信中寫道： > Hi Stuart, > > Thank yo so much for your quick response! I would like to go more details > for it. > > (1) Is there any official documentation has mentioned about this mechanism? > (2) The default look back interval is 5 minutes. Is it configurable for > Prometheus and promtool during the unit testing for alert? > > Honestly, I still couldn’t understand why Prometheus has this mechanism. > Just for this test case, it didn’t make sense to keep firing an alert > during the 3m to 7m, as the time series metrics has already gone. > > Thank you so much! -- 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/50a79464-8a2f-4ed2-afb4-e53536cddc38n%40googlegroups.com.
