rename metric scheduler_total_preemption_attempts to scheduler_preemption_attempts_total as counter metrics should have _total suffix.

Author: RainbowMango

pkg/scheduler/metrics/metrics.go

@@ -145,7 +145,7 @@ var (
 	PreemptionAttempts = metrics.NewCounter(
 		&metrics.CounterOpts{
 			Subsystem:      SchedulerSubsystem,
-			Name:           "total_preemption_attempts",
+			Name:           "preemption_attempts_total",
 			Help:           "Total preemption attempts in the cluster till now",
 			StabilityLevel: metrics.ALPHA,
 		})

staging/src/k8s.io/component-base/metrics/testutil/promlint.go

@@ -53,9 +53,6 @@ var exceptionMetrics = []string{
 	// kube-proxy
 	"kubernetes_build_info",
 
-	// kube-scheduler
-	"scheduler_total_preemption_attempts",
-
 	// kubelet-resource-v1alpha1
 	"container_cpu_usage_seconds_total",
 	"node_cpu_usage_seconds_total",