apiVersion: release-notes/v2
kind: feature
area: telemetry
releaseNotes:
  - |

apiVersion: release-notes/v2
kind: feature
area: networking
issue: []
releaseNotes:
- |

8.271Z\",\"max\":\"2019-07-30T10:40:08.271Z\"}},\"aggType\":\"date_histogram\"},\"y\":[{\"accessor\":1,\"format\":{\"id\":\"number\"},\"params\":{},\"aggType\":\"count\"}]}},\"aggs\":[{\"id\":\"1\",\"enabled\":true,\"type\":\"count\",\"schema\":\"metric\",\"params\":{\"customLabel\":\"Query Count\"}},{\"id\":\"2\",\"enabled\":true,\"type\":\"date_histogram\",\"schema\":\"segment\",\"params\":{\"field\":\"requestedAt\",\"timeRange\":{\"from\":\"now-2d\",\"to\":\"now\"},\"useNormalizedEsInterval\"...

					matchedTarget = &tc.metricsTarget[i]
				}
			}
		}
		assert.NotNil(t, matchedTarget, "this request should have matched one of the metric specs")
		assert.Equal(t, "qps", getForAction.GetMetricName(), "the metric name requested should have been qps, as specified in the metric spec")

		metrics.Items = []cmapi.MetricValue{
			{
				DescribedObject: v1.ObjectReference{

apiVersion: release-notes/v2
kind: bug-fix
area: telemetry
issue:
  - 20538
releaseNotes:
- |

					// Next, get all matches.
					// This is a bit funky because the matches are oneof of ENUM and customer metric. We normalize
					// these to strings, so we may end up with a list like [REQUEST_COUNT, my-customer-metric].
					// TODO: we always flatten ALL_METRICS into each metric mode. For some stats providers (prometheus),
					// we are able to apply overrides to all metrics directly rather than duplicating the config.

	if n.client != nil {
		counter, err := n.client.Get(n.counter)
		if err != nil {
			klog.ErrorS(err, "failed to collect nfacct counter", "counter", n.counter)
		} else {
			metric, err := metrics.NewConstMetric(n.description, metrics.CounterValue, float64(counter.Packets))
			if err != nil {
				klog.ErrorS(err, "failed to create constant metric")
			} else {
				ch <- metric

	"k8s.io/component-base/metrics/legacyregistry"
)

/*
 * By default, the following metric is defined as falling under
 * ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/1209-metrics-stability/kubernetes-control-plane-metrics-stability.md#stability-classes)
 *
 * Promoting the stability level of the metric is a responsibility of the component owner, since it

func TestPanicEvent(t *testing.T) {
	// Use a sync event for this because it doesn't have any extra metadata.
	ev := syncEvent(nil, 0)

	mustPanic(t, func() {
		_ = ev.Range()
	})
	mustPanic(t, func() {
		_ = ev.Metric()
	})
	mustPanic(t, func() {
		_ = ev.Log()
	})
	mustPanic(t, func() {
		_ = ev.Task()
	})
	mustPanic(t, func() {
		_ = ev.Region()
	})
	mustPanic(t, func() {
		_ = ev.Label()
	})

 *
 * Promoting the stability level of the metric is a responsibility of the component owner, since it
 * involves explicitly acknowledging support for the metric across multiple releases, in accordance with
 * the metric stability policy.
 */
var (
	listCacheCount = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{