Understanding histogram_quantile based on rate in Prometheus

Question

According to Prometheus documentation in order to have a 95th percentile using histogram metric I can use following query:

histogram_quantile(0.95, sum(rate(http         


        

Answer 1

You have to use reset because counters can be reset, rate automatically considers resets and give you the right count for each second. Just remember that always use rate before using counters.