Reseting Histogram

[Błażej Suszka]

Hi, is it possible to reset histogram metric somehow?

I'm trying to get average latencies over time but as _sum is cumulatvie since deploying I can't differentiate that.

Thanks in advance for any suggesstions.

Thanks

[Ben Kochie]

There is no need to reset in order to get current average latencies. That's the beauty of cumulative counters.

The PromQL would look like this:

rate(my_histogram_seconds_sum[5m])

/

rate(my_histogram_seconds_count[5m])

You can adjust whatever range vector value to want in order to control the averaging window. Up to 2x your scrape interval of course.

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