Merge pull request #6654 from GoogleCloudPlatform/revert-6623-fix_scheduler_profiling

plugin/cmd/kube-scheduler/app/server.go

@@ -69,7 +69,7 @@ func (s *SchedulerServer) AddFlags(fs *pflag.FlagSet) {
 	client.BindClientConfigFlags(fs, &s.ClientConfig)
 	fs.StringVar(&s.AlgorithmProvider, "algorithm_provider", s.AlgorithmProvider, "The scheduling algorithm provider to use")
 	fs.StringVar(&s.PolicyConfigFile, "policy_config_file", s.PolicyConfigFile, "File with scheduler policy configuration")
-	fs.BoolVar(&s.EnableProfiling, "profiling", true, "Enable profiling via web interface host:port/debug/pprof/")
+	fs.BoolVar(&s.EnableProfiling, "profiling", false, "Enable profiling via web interface host:port/debug/pprof/")
 }
 
 // Run runs the specified SchedulerServer.  This should never exit.
@@ -80,19 +80,13 @@ func (s *SchedulerServer) Run(_ []string) error {
 	}
 
 	go func() {
-		mux := http.NewServeMux()
 		if s.EnableProfiling {
-			mux.HandleFunc("/debug/pprof/", pprof.Index)
-			mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
-			mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+			http.HandleFunc("/debug/pprof/", pprof.Index)
+			http.HandleFunc("/debug/pprof/profile", pprof.Profile)
+			http.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
 		}
-		mux.Handle("/metrics", prometheus.Handler())
-
-		server := &http.Server{
-			Addr:    net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)),
-			Handler: mux,
-		}
-		glog.Fatal(server.ListenAndServe())
+		http.Handle("/metrics", prometheus.Handler())
+		http.ListenAndServe(net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)), nil)
 	}()
 
 	configFactory := factory.NewConfigFactory(kubeClient)