diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index f369e38c2f..6fde5d983f 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -620,8 +620,6 @@ int32_t hbGetExpiredUserInfo(SClientHbKey *connKey, struct SCatalog *pCatalog, S
   }
 
   if (userNum <= 0) {
-    // printf("%s:%d hb get expired: [User:%s] NNNNo user since user num:  %d, second:%d\n", __func__, __LINE__, pTscObj->user, userNum,
-    //        taosGetTimestampSec());
     taosMemoryFree(users);
     releaseTscObj(connKey->tscRid);
     return TSDB_CODE_SUCCESS;
diff --git a/source/dnode/mnode/impl/src/mndUser.c b/source/dnode/mnode/impl/src/mndUser.c
index eff87bd195..e0a561961d 100644
--- a/source/dnode/mnode/impl/src/mndUser.c
+++ b/source/dnode/mnode/impl/src/mndUser.c
@@ -1382,7 +1382,6 @@ int32_t mndValidateUserAuthInfo(SMnode *pMnode, SUserAuthVersion *pUsers, int32_
 
     pUsers[i].version = ntohl(pUsers[i].version);
     if (pUser->authVersion <= pUsers[i].version) {
-      printf("pUser->authVersion:%d <= pUsers[i].version:%d\n", pUser->authVersion, pUsers[i].version);
       mndReleaseUser(pMnode, pUser);
       continue;
     }
diff --git a/source/libs/parser/src/parAuthenticator.c b/source/libs/parser/src/parAuthenticator.c
index 136a8d516f..9b2ac662c8 100644
--- a/source/libs/parser/src/parAuthenticator.c
+++ b/source/libs/parser/src/parAuthenticator.c
@@ -164,25 +164,6 @@ static int32_t authDropUser(SAuthCxt* pCxt, SDropUserStmt* pStmt) {
   }
   return TSDB_CODE_SUCCESS;
 }
-#if 0
-static int32_t authAlterUser(SAuthCxt* pCxt, SAlterUserStmt* pStmt) {
-  SParseContext* pParseCxt = pCxt->pParseCxt;
-
-  SUserAuthInfo authInfo = {0};
-  snprintf(authInfo.user, sizeof(authInfo.user), "%s", pStmt->userName);
-  authInfo.type = AUTH_TYPE_OTHER;
-
-  int32_t          code = TSDB_CODE_SUCCESS;
-  SUserAuthRes     authRes = {0};
-  SRequestConnInfo conn = {.pTrans = pParseCxt->pTransporter,
-                           .requestId = pParseCxt->requestId,
-                           .requestObjRefId = pParseCxt->requestRid,
-                           .mgmtEps = pParseCxt->mgmtEpSet};
-  code = catalogChkAuth(pParseCxt->pCatalog, &conn, &authInfo, &authRes);
-
-  return TSDB_CODE_SUCCESS == code ? (authRes.pass ? TSDB_CODE_SUCCESS : TSDB_CODE_PAR_PERMISSION_DENIED) : code;
-}
-#endif
 
 static int32_t authDelete(SAuthCxt* pCxt, SDeleteStmt* pDelete) {
   SNode*      pTagCond = NULL;
@@ -265,8 +246,6 @@ static int32_t authQuery(SAuthCxt* pCxt, SNode* pStmt) {
       return authSelect(pCxt, (SSelectStmt*)pStmt);
     case QUERY_NODE_DROP_USER_STMT:
       return authDropUser(pCxt, (SDropUserStmt*)pStmt);
-    // case QUERY_NODE_ALTER_USER_STMT:
-    //   return authAlterUser(pCxt, (SAlterUserStmt*)pStmt);
     case QUERY_NODE_DELETE_STMT:
       return authDelete(pCxt, (SDeleteStmt*)pStmt);
     case QUERY_NODE_INSERT_STMT: