It sounds like you're having problems with a third-party software which you refer to as "an OpenTelemetry collector"
As a starting point, can you provide a link to that project and/or its documentation, and show how you have configured it? Can you also show the exact error message you see? And what version of Prometheus you are running? > my question is why doesn't Prometheus use the metric timestamp which has nanosecond precision Prometheus *does* preserve these timestamps with remote write. So at this point, it sounds like a problem with the third-party software. (Aside: Prometheus generally ignores the timestamps when doing standard scraping over HTTP, but the timestamp is then the time of the scrape, so they are always different) On Sunday, 3 September 2023 at 07:31:24 UTC+1 John Perrin wrote: > Hello > We are exporting metrics from an OpenTelemetry collector using the > prometheusremotewrite exporter to Prometheus started with > the --enable-feature=remote-write-receiver > The metrics are the results of k6 http requests eg response time which are > passed into the Opentelemetry collector and then exported to Prometheus and > we want to ingest all the data points into Prometheus. We then use Grafana > to aggregate and visualise the metrics. > It generally works fine except when a metric has the same name and value > within the same time interval inside Prometheus. In this case Prometheus > rejects the metric as a duplicate when Opentelemetry tries to export it and > the metric is dropped. > In this use case my question is why doesn't Prometheus use the metric > timestamp which has nanosecond precision. If it did then it would be > unlikely that 2 metrics would be duplicates. > The other option we have had some success with is to add a random number > tag to the metric but this doesn't always work and is not ideal. > I'm not clear on how Prometheus creates it's internal timestamps in this > case and wondered if there is some way to configure it to use the metric > timestamp. > > -- 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/442d1892-26c3-4a2b-b93a-c26f80eee377n%40googlegroups.com.
