apiVersion: release-notes/v2
kind: bug-fix
area: telemetry
issue:
  - 29373
releaseNotes:
- |

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

apiVersion: release-notes/v2
kind: feature
area: telemetry
releaseNotes:
  - |
    **Added** metric expiry support, when env flags `METRIC_ROTATION_INTERVAL` and

apiVersion: release-notes/v2
kind: feature
area: traffic-management
issue:
  - 31772
releaseNotes:
- |

		if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(expectedValue), metrics...); err != nil {
			t.Fatal(err)
		}
		authorizationDecisionsTotal.Reset()
	}

	// no-opinion emits no metric
	{
		dummyAuthorizer.decision = authorizer.DecisionNoOpinion
		_, _, _ = a.Authorize(context.Background(), nil)
		_, _, _ = a.Authorize(context.Background(), nil)
		expectedValue := prefix + `
		`

		}),
	)
)

var (
	envoyFilterStatusMap = map[string]map[string]bool{} // Map of Envoy filter name, patch and status.
	envoyFilterMutex     sync.RWMutex
)

// IncrementEnvoyFilterMetric increments filter metric.
func IncrementEnvoyFilterMetric(name string, pt PatchType, applied bool) {
	if !features.EnableEnvoyFilterMetrics {
		return
	}
	envoyFilterMutex.Lock()
	defer envoyFilterMutex.Unlock()

auto* checkpoint_write_durations = monitoring::Sampler<1>::New(
    {
        "/tensorflow/core/checkpoint/write/write_durations",  // Metric name.
        "Distribution of the wall time duration in microseconds of the "
        "checkpoint write operation.",  // Metric description.
        "api_label"                     // Cell label.
    },
    // Scale of 1000, growth factor of 1.5 with upper bound of ~184 minutes.

apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
  - 44151
releaseNotes:
  - |

import (
	"sync"

	"k8s.io/apimachinery/pkg/runtime/schema"

	"istio.io/istio/operator/pkg/util"
)

// resourceCounts keeps track of the number of resources owned by each
// IstioOperator resource. The reported metric is the sum across all these.
type resourceCounts struct {
	mu        *sync.Mutex
	resources map[schema.GroupKind]map[string]struct{}
}

var rc *resourceCounts

func initOperatorCrdResourceMetrics() {

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