diff --git a/pkg/metrics/client_go_adapter.go b/pkg/metrics/client_go_adapter.go index a8b43ea0a4..ff28998c44 100644 --- a/pkg/metrics/client_go_adapter.go +++ b/pkg/metrics/client_go_adapter.go @@ -18,8 +18,6 @@ package metrics import ( "context" - "net/url" - "time" "github.com/prometheus/client_golang/prometheus" clientmetrics "k8s.io/client-go/tools/metrics" @@ -29,70 +27,9 @@ import ( // that client-go registers metrics. We copy the names and formats // from Kubernetes so that we match the core controllers. -// Metrics subsystem and all of the keys used by the rest client. -const ( - RestClientSubsystem = "rest_client" - LatencyKey = "request_latency_seconds" - ResultKey = "requests_total" -) - var ( // client metrics. - // RequestLatency reports the request latency in seconds per verb/URL. - // Deprecated: This metric is deprecated for removal in a future release: using the URL as a - // dimension results in cardinality explosion for some consumers. It was deprecated upstream - // in k8s v1.14 and hidden in v1.17 via https://github.com/kubernetes/kubernetes/pull/83836. - // It is not registered by default. To register: - // import ( - // clientmetrics "k8s.io/client-go/tools/metrics" - // clmetrics "sigs.k8s.io/controller-runtime/metrics" - // ) - // - // func init() { - // clmetrics.Registry.MustRegister(clmetrics.RequestLatency) - // clientmetrics.Register(clientmetrics.RegisterOpts{ - // RequestLatency: clmetrics.LatencyAdapter - // }) - // } - RequestLatency = prometheus.NewHistogramVec(prometheus.HistogramOpts{ - Subsystem: RestClientSubsystem, - Name: LatencyKey, - Help: "Request latency in seconds. Broken down by verb and URL.", - Buckets: prometheus.ExponentialBuckets(0.001, 2, 10), - }, []string{"verb", "url"}) - - // requestLatency is a Prometheus Histogram metric type partitioned by - // "verb", and "host" labels. It is used for the rest client latency metrics. - requestLatency = prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "rest_client_request_duration_seconds", - Help: "Request latency in seconds. Broken down by verb, and host.", - Buckets: []float64{0.005, 0.025, 0.1, 0.25, 0.5, 1.0, 2.0, 4.0, 8.0, 15.0, 30.0, 60.0}, - }, - []string{"verb", "host"}, - ) - - requestSize = prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "rest_client_request_size_bytes", - Help: "Request size in bytes. Broken down by verb and host.", - // 64 bytes to 16MB - Buckets: []float64{64, 256, 512, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216}, - }, - []string{"verb", "host"}, - ) - - responseSize = prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "rest_client_response_size_bytes", - Help: "Response size in bytes. Broken down by verb and host.", - // 64 bytes to 16MB - Buckets: []float64{64, 256, 512, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216}, - }, - []string{"verb", "host"}, - ) - requestResult = prometheus.NewCounterVec( prometheus.CounterOpts{ Name: "rest_client_requests_total", @@ -109,17 +46,11 @@ func init() { // registerClientMetrics sets up the client latency metrics from client-go. func registerClientMetrics() { // register the metrics with our registry - Registry.MustRegister(requestLatency) - Registry.MustRegister(requestSize) - Registry.MustRegister(responseSize) Registry.MustRegister(requestResult) // register the metrics with client-go clientmetrics.Register(clientmetrics.RegisterOpts{ - RequestLatency: &LatencyAdapter{metric: requestLatency}, - RequestSize: &sizeAdapter{metric: requestSize}, - ResponseSize: &sizeAdapter{metric: responseSize}, - RequestResult: &resultAdapter{metric: requestResult}, + RequestResult: &resultAdapter{metric: requestResult}, }) } @@ -131,24 +62,6 @@ func registerClientMetrics() { // copied (more-or-less directly) from k8s.io/kubernetes setup code // (which isn't anywhere in an easily-importable place). -// LatencyAdapter implements LatencyMetric. -type LatencyAdapter struct { - metric *prometheus.HistogramVec -} - -// Observe increments the request latency metric for the given verb/URL. -func (l *LatencyAdapter) Observe(_ context.Context, verb string, u url.URL, latency time.Duration) { - l.metric.WithLabelValues(verb, u.String()).Observe(latency.Seconds()) -} - -type sizeAdapter struct { - metric *prometheus.HistogramVec -} - -func (s *sizeAdapter) Observe(ctx context.Context, verb string, host string, size float64) { - s.metric.WithLabelValues(verb, host).Observe(size) -} - type resultAdapter struct { metric *prometheus.CounterVec }