diff --git a/common/db.go b/common/db.go
index 7592458..09071c5 100644
--- a/common/db.go
+++ b/common/db.go
@@ -144,8 +144,7 @@ func WaitDBUp() {
 	defer func() {
 		sdb.Close()
 	}()
-	for _, err := dtmimp.DBExec(sdb, "select 1"); err != nil; { // wait for mysql to start
-		time.Sleep(3 * time.Second)
-		_, err = dtmimp.DBExec(sdb, "select 1")
+	if _, err = dtmimp.DBExec(sdb, "select 1"); err != nil {
+		dtmimp.FatalIfError(err)
 	}
 }
diff --git a/dtmcli/dtmimp/utils.go b/dtmcli/dtmimp/utils.go
index f2d77dd..df6574c 100644
--- a/dtmcli/dtmimp/utils.go
+++ b/dtmcli/dtmimp/utils.go
@@ -146,7 +146,7 @@ func Logf(fmt string, args ...interface{}) {
 
 // LogRedf 采用红色打印错误类信息
 func LogRedf(fmt string, args ...interface{}) {
-	logger.Errorf(fmt, args)
+	logger.Errorf(fmt, args...)
 }
 
 // FatalExitFunc Fatal退出函数，测试时被替换