The way to determine for sure the scrape interval is to go to the Prometheus web interface expression editor, make sure you're in the Table view (not Graph view), and enter a range vector query like:
probe_success[5m] This will show the raw stored data points in that time range, with their timestamps. As Ben says, if you're looking at something from Grafana then it's making a Range query to the API <https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries>, where Grafana provides a start time, an end time, and a step. Prometheus will repeat the query at every step interval, giving the most recent value of the metric at each time (it's allowed to look back in time up to 5 minutes to find a stored data point). Hence if Grafana asks for a 15 second step but there's a 1 minute scrape interval you'll see the same value 4 times, which matches what you see. If you go to the Grafana data source settings page, you'll see the expected scrape interval is a setting you can adjust (and defaults to 15s) On Thursday, 18 May 2023 at 12:52:49 UTC+1 Paweł Błażejewski wrote: > Hello, > > Blackbox exporter http module check https site every 15s by default. Can > you please tell me Is it posible to change this interval to 1 minute. I add > scrape_interval parametr in prometheus config as you see below, but it > doesn't change anything. Samples are stiil every 15s. > > can you please tell me how and where change it. > I user prometheus 2.37.7, blackbox_exporter 0.23.0 > > prometheus config: > > - job_name: 'blackbox-http-csci-prod' > scrape_interval: 60s > scrape_timeout: 50s > metrics_path: /blackbox/probe > params: > module: [http_2xx] > static_configs: > - targets: > - https://ci-jenkins***********/login?from=%2F > - https://ci-jenkins-***************l/login?from=%2F > - https://ci-**************/login?from=%2F > . > . > . > relabel_configs: > - source_labels: [*address*] > target_label: __param_target > - source_labels: [__param_target] > target_label: instance > - target_label: *address* > > Samples still every 15s. > > 2023-05-15 09:45:00 > 0.0624 > 2023-05-15 09:45:15 > 0.0624 > 2023-05-15 09:45:30 > 0.0527 > 2023-05-15 09:45:45 > 0.0527 > 2023-05-15 09:46:00 > 0.0527 > 2023-05-15 09:46:15 > 0.0527 > 2023-05-15 09:46:30 > 0.0465 > 2023-05-15 09:46:45 > 0.0465 > 2023-05-15 09:47:00 > 0.0465 > 2023-05-15 09:47:15 > 0.0465 > 2023-05-15 09:47:30 > 0.0465 > 2023-05-15 09:47:45 > 0.0465 > > -- 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/9813ae70-3ea2-47da-821c-7f5d28fc8ba7n%40googlegroups.com.
