diff --git a/aws-experiment-launch/experiment/commander/main.go b/aws-experiment-launch/experiment/commander/main.go
index 4efc93ed2..d780010f5 100644
--- a/aws-experiment-launch/experiment/commander/main.go
+++ b/aws-experiment-launch/experiment/commander/main.go
@@ -19,12 +19,10 @@ var (
 
 func SocketClient(addr string) {
 	conn, err := net.Dial("tcp", addr)
-
-	defer conn.Close()
-
 	if err != nil {
 		log.Fatalln(err)
 	}
+	defer conn.Close()
 
 	message := "init http://localhost:8080/" + *configFile
 	conn.Write([]byte(message))
@@ -44,7 +42,11 @@ func main() {
 
 	for _, config := range configs {
 		ip := config[0]
-		port := config[1]
+		port := "1" + config[1] // the port number of solider is "1" + node port
+		duty := config[2]
+		if duty == "client" {
+			continue
+		}
 		addr := strings.Join([]string{ip, port}, ":")
 		SocketClient(addr)
 	}
diff --git a/aws-experiment-launch/experiment/soldier/main.go b/aws-experiment-launch/experiment/soldier/main.go
index 01d596032..76d63e74d 100644
--- a/aws-experiment-launch/experiment/soldier/main.go
+++ b/aws-experiment-launch/experiment/soldier/main.go
@@ -25,13 +25,14 @@ var (
 )
 
 func socketServer() {
-	listen, err := net.Listen("tcp4", ":"+*port)
+	soldierPort := "1" + *port // the soldier port is "1" + node port
+	listen, err := net.Listen("tcp4", ":"+soldierPort)
 	if err != nil {
-		log.Fatalf("Socket listen port %s failed,%s", *port, err)
+		log.Fatalf("Socket listen port %s failed,%s", soldierPort, err)
 		os.Exit(1)
 	}
 	defer listen.Close()
-	log.Printf("Begin listen for command on port: %s", *port)
+	log.Printf("Begin listen for command on port: %s", soldierPort)
 
 	for {
 		conn, err := listen.Accept()
@@ -132,6 +133,7 @@ func handleInitCommand(args []string, w *bufio.Writer) {
 
 	run()
 
+	log.Println("Successfully init-ed")
 	w.Write([]byte("Successfully init-ed"))
 	w.Flush()
 }