diff --git a/be/src/common/utils.h b/be/src/common/utils.h
index a4d2d2aa6329ef..8376fe38a68e67 100644
--- a/be/src/common/utils.h
+++ b/be/src/common/utils.h
@@ -34,7 +34,11 @@ template<class T>
 void set_request_auth(T* req, const AuthInfo& auth) {
     if (auth.auth_code != -1) {
         // if auth_code is set, no need to set other info
-        req->auth_code = auth.auth_code;
+        req->__set_auth_code(auth.auth_code);
+        // user name and passwd is unused, but they are required field.
+        // so they have to be set.
+        req->user = "";
+        req->passwd = "";
     } else {
         req->user = auth.user;
         req->passwd = auth.passwd;