add retry to master clients also

weed/util/retry.go

@@ -9,13 +9,18 @@ import (
 
 func Retry(name string, waitTimeLimit time.Duration, job func() error) (err error) {
 	waitTime := time.Second
+	hasErr := false
 	for waitTime < waitTimeLimit {
 		err = job()
 		if err == nil {
+			if hasErr {
+				glog.V(0).Infof("retry %s successfully", name)
+			}
 			break
 		}
-		if strings.Contains(err.Error(), "transport: ") {
-			glog.V(1).Infof("retry %s", name)
+		if strings.Contains(err.Error(), "transport") {
+			hasErr = true
+			glog.V(0).Infof("retry %s", name)
 			time.Sleep(waitTime)
 			waitTime += waitTime / 2
 		}