Query 'min step' of 1m loses fine detail
bboreham opened this issue · 0 comments
bboreham commented
I find this setting problemmatic:
It is shown in the Grafana UI as 'min step'.
Here it is documented that $__rate_interval will be floored at 4x this quantity, i.e. 4 minutes. This makes it impossible to see fast transients in the data.
Further, Cortex query-frontend will quantise start and end times to a multiple of the step time, so dashboards only change every minute.
Since we are scraping at 15s I propose "min step" should be 15s.