On Tue, 24 May 2022 at 15:38, 'Fabian Stäber' via Prometheus Developers < [email protected]> wrote:
> Hi Developers, > > Reviewing the Created timestamps for Summary metrics, I'm not sure anymore > if we do it right in client_java: > > In the current implementation of Summary we have: > > - Count: Total number since application start. > - Sum: Total number since application start. > - Quantiles: Sliding time window, by default rotated every 10 minutes. > > The Created timestamp is constant and refers to the application startup. > Created is for when a given child is created, which can be after this, and that's how it's coded: https://github.com/prometheus/client_java/blob/master/simpleclient/src/main/java/io/prometheus/client/Summary.java#L301 > > That means, the Created timestamp is correct for Count and Sum, but > incorrect for the Quantiles, as the Quantiles are max 10 minutes old. > It relates to the count/sum, not the quantiles. Same as for counters and histograms. > > I'm wondering: Is this how the Created timestamp for Summary metrics is > supposed to be implemented? > Unless I messed up, it is implemented correctly in client_java. Brian > > Fabian > > -- > You received this message because you are subscribed to the Google Groups > "Prometheus Developers" 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-developers/0796c263-769e-4003-a3cc-17091eaaaaecn%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-developers/0796c263-769e-4003-a3cc-17091eaaaaecn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Brian Brazil www.robustperception.io -- You received this message because you are subscribed to the Google Groups "Prometheus Developers" 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-developers/CAHJKeLrwOLEOF1GHKwXfxfweK%3Dk0%2Bcz%2Bvcfp8%3D98Np4djkKLkA%40mail.gmail.com.
