hard20 pts · first answer countspromqlprometheus

Gaps in a rate() graph

Prometheus scrapes every 30s. A panel using rate(http_requests_total[30s]) shows frequent gaps and jumpy values. Why, and what is the fix?

A.The window often contains fewer than two samples; use a range of at least about four scrape intervals, such as [2m]B.rate() does not work on counters; use irate() on a gaugeC.Prometheus drops samples older than 30 seconds; lower retentionD.The scrape interval must be longer than the range; scrape every 60s

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Gaps in a rate() graph

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