diff --git a/staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go b/staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go index 185ca656f7..0c9a1857eb 100644 --- a/staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go +++ b/staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go @@ -72,8 +72,11 @@ var ( prometheus.HistogramOpts{ Name: "apiserver_request_latency_seconds", Help: "Response latency distribution in seconds for each verb, group, version, resource, subresource, scope and component.", - // Use buckets ranging from 125 ms to 8 seconds. - Buckets: prometheus.ExponentialBuckets(0.125, 2.0, 7), + // This metric is used for verifying api call latencies SLO, + // as well as tracking regressions in this aspects. + // Thus we customize buckets significantly, to empower both usecases. + Buckets: []float64{0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, + 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60}, }, []string{"verb", "group", "version", "resource", "subresource", "scope", "component"}, )