Unregister some metrics

delete some registered metrics since they are not observed

pkg/kubelet/metrics/metrics.go

@@ -28,10 +28,7 @@ import (
 const (
 	KubeletSubsystem           = "kubelet"
 	PodWorkerLatencyKey        = "pod_worker_latency_microseconds"
-	SyncPodsLatencyKey            = "sync_pods_latency_microseconds"
 	PodStartLatencyKey         = "pod_start_latency_microseconds"
-	PodStatusLatencyKey           = "generate_pod_status_latency_microseconds"
-	ContainerManagerOperationsKey = "container_manager_latency_microseconds"
 	CgroupManagerOperationsKey = "cgroup_manager_latency_microseconds"
 	DockerOperationsLatencyKey = "docker_operations_latency_microseconds"
 	DockerOperationsKey        = "docker_operations"
@@ -63,13 +60,6 @@ var (
 		},
 		[]string{"operation_type"},
 	)
-	SyncPodsLatency = prometheus.NewSummary(
-		prometheus.SummaryOpts{
-			Subsystem: KubeletSubsystem,
-			Name:      SyncPodsLatencyKey,
-			Help:      "Latency in microseconds to sync all pods.",
-		},
-	)
 	PodStartLatency = prometheus.NewSummary(
 		prometheus.SummaryOpts{
 			Subsystem: KubeletSubsystem,
@@ -77,21 +67,6 @@ var (
 			Help:      "Latency in microseconds for a single pod to go from pending to running. Broken down by podname.",
 		},
 	)
-	PodStatusLatency = prometheus.NewSummary(
-		prometheus.SummaryOpts{
-			Subsystem: KubeletSubsystem,
-			Name:      PodStatusLatencyKey,
-			Help:      "Latency in microseconds to generate status for a single pod.",
-		},
-	)
-	ContainerManagerLatency = prometheus.NewSummaryVec(
-		prometheus.SummaryOpts{
-			Subsystem: KubeletSubsystem,
-			Name:      ContainerManagerOperationsKey,
-			Help:      "Latency in microseconds for container manager operations. Broken down by method.",
-		},
-		[]string{"operation_type"},
-	)
 	CgroupManagerLatency = prometheus.NewSummaryVec(
 		prometheus.SummaryOpts{
 			Subsystem: KubeletSubsystem,
@@ -197,11 +172,8 @@ func Register(containerCache kubecontainer.RuntimeCache) {
 	registerMetrics.Do(func() {
 		prometheus.MustRegister(PodWorkerLatency)
 		prometheus.MustRegister(PodStartLatency)
-		prometheus.MustRegister(PodStatusLatency)
 		prometheus.MustRegister(DockerOperationsLatency)
-		prometheus.MustRegister(ContainerManagerLatency)
 		prometheus.MustRegister(CgroupManagerLatency)
-		prometheus.MustRegister(SyncPodsLatency)
 		prometheus.MustRegister(PodWorkerStartLatency)
 		prometheus.MustRegister(ContainersPerPodCount)
 		prometheus.MustRegister(DockerOperations)

test/e2e/framework/kubelet_stats.go

@@ -100,10 +100,7 @@ func GetKubeletLatencyMetrics(ms metrics.KubeletMetrics) KubeletLatencyMetrics {
 	latencyMethods := sets.NewString(
 		kubeletmetrics.PodWorkerLatencyKey,
 		kubeletmetrics.PodWorkerStartLatencyKey,
-		kubeletmetrics.SyncPodsLatencyKey,
 		kubeletmetrics.PodStartLatencyKey,
-		kubeletmetrics.PodStatusLatencyKey,
-		kubeletmetrics.ContainerManagerOperationsKey,
 		kubeletmetrics.CgroupManagerOperationsKey,
 		kubeletmetrics.DockerOperationsLatencyKey,
 		kubeletmetrics.PodWorkerStartLatencyKey,