client-change: adjust timeout duration when pprof port is in use

The time for client to wait when port is in use is 1m. And the hint
is logged in the file. Now, the time changed to 10s and hint is
foreground to make the users know what the client is doing.
Besides, the log interval is also changed to approximately 5s to
make the screen clearer.

Signed-off-by: wanglei469 <[email protected]>

client/fuse.go

@@ -81,6 +81,8 @@ const (
 	DefaultUDSName       = "/tmp/ChubaoFS-fdstore.sock"
 
 	DefaultLogPath = "/var/log/chubaofs"
+
+	TimeOutPort = 10 * time.Second
 )
 
 var (
@@ -446,16 +448,15 @@ func startDaemon() error {
 func waitListenAndServe(statusCh chan error, addr string, handler http.Handler) {
 	var err error
 	var loop int = 0
-	var interval int = (1 << 17) - 1
+	var interval int = (1 << 20) - 1
 	var listener net.Listener
 	var dynamicPort bool
 
 	if addr == ":" {
 		addr = ":0"
 	}
 
-	// FIXME: 1 min timeout?
-	timeout := time.Now().Add(time.Minute)
+	timeout := time.Now().Add(TimeOutPort)
 	for {
 		if listener, err = net.Listen("tcp", addr); err == nil {
 			break
@@ -464,18 +465,15 @@ func waitListenAndServe(statusCh chan error, addr string, handler http.Handler)
 		// addr is not released for use
 		if strings.Contains(err.Error(), "bind: address already in use") {
 			if loop&interval == 0 {
-				syslog.Printf("address %v is still in use\n", addr)
+				warnForeground("address %v is still in use, please wait ...\n", addr)
 			}
 			runtime.Gosched()
 		} else {
 			break
 		}
 		if time.Now().After(timeout) {
-			msg := fmt.Sprintf("address %v is still in use after "+
+			warnForeground("address %v is still in use after "+
 				"timeout, choose port automatically\n", addr)
-			syslog.Print(msg)
-			msg = "Warning: " + msg
-			daemonize.StatusWriter.Write([]byte(msg))
 			dynamicPort = true
 			break
 		}
@@ -690,3 +688,10 @@ func changeRlimit(val uint64) {
 func freeOSMemory(w http.ResponseWriter, r *http.Request) {
 	debug.FreeOSMemory()
 }
+
+func warnForeground(format string, v ...interface{}) {
+	msg := fmt.Sprintf(format, v...)
+	syslog.Print(msg)
+	msg = "Warning: " + msg
+	daemonize.StatusWriter.Write([]byte(msg))
+}