You can send the query "foo[2d]" and then filter the results in the client, to just those points where the value is N.
This is a use case where it would be nice to be able to build a range vector directly out of a simple instant vector expression, i.e. "(foo == N)[2d]". However that isn't allowed. A subquery doesn't cut it here, because it resamples the data. The subquery "(foo == N)[2d:1s]" gives an approximation, but for a given point you'll see multiple points at 1 second intervals (until the time where foo != N) On Sunday, 2 January 2022 at 04:09:20 UTC Victor Sudakov wrote: > Colleagues, > > If max_over_time(foo[2d]) returns N, how can I find the exact timestamp(s) > in the past when foo=N? > > In other words, if there have been very short bursts, how do I find the > exact time of those bursts with a PromQL query? > > -- > Victor Sudakov VAS4-RIPE > http://vas.tomsk.ru/ > 2:5005/49@fidonet > -- 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/691d1784-4139-465b-89a6-21db373e70c6n%40googlegroups.com.
