Add flag for connection rate limit and slow zero-progress operations

cmd/mc-router/main.go

@@ -24,6 +24,7 @@ var (
 	inKubeCluster  = flag.Bool("in-kube-cluster", false, "Use in-cluster kubernetes config")
 	cpuProfile     = flag.String("cpu-profile", "", "Enables CPU profiling and writes to given path")
 	debug          = flag.Bool("debug", false, "Enable debug logs")
+	connRateLimit  = flag.Int("connection-rate-limit", 1, "Max number of connections to allow per second")
 )
 
 var (
@@ -71,7 +72,10 @@ func main() {
 
 	server.Routes.RegisterAll(parseMappings(*mappings))
 
-	server.Connector.StartAcceptingConnections(ctx, net.JoinHostPort("", strconv.Itoa(*port)))
+	if *connRateLimit < 1 {
+		*connRateLimit = 1
+	}
+	server.Connector.StartAcceptingConnections(ctx, net.JoinHostPort("", strconv.Itoa(*port)), *connRateLimit)
 
 	if *apiBinding != "" {
 		server.StartApiServer(*apiBinding)