Probably because the dashboard query is using a rate with a fixed interval,
e.g.
rate(foo[2m])
This won't work with a scrape interval of 2m, because the 2m time range
only includes one data point, and at least two data points are required to
calculate a range.
Firstly, change the query to:
rate(foo[$__rate_interval])
Then go to Grafana settings, Prometheus data source, and configure the
actual scrape interval you are using.
$__rate_interval returns the larger of:
* 4 times the configured scrape interval; or
* the configured scrape interval plus the interval between points on the
graph (when zoomed out a long way)
See:
https://grafana.com/docs/grafana/latest/datasources/prometheus/#using-__rate_interval
On Wednesday, 2 March 2022 at 09:48:45 UTC [email protected] wrote:
> Hello All,
>
> If the scrape interval is 15 seconds I am able to see CPU used in the
> GRAFANA dashboard. but if the scrape interval is 2 minutes I am not able to
> see CPU used in the GRAFANA dashboard. what could be the reason behind
> that?
>
> and we can set scrape interval at max 2 minutes right? then why I am
> unable to see CPU used in GRAFANA dashboard
>
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