diff --git a/source/dnode/mnode/impl/inc/mndShow.h b/source/dnode/mnode/impl/inc/mndShow.h
index 37fb9159dc3f18ab372c2d0d65aac336f1c73158..67e277677c91c5bf7eeab7a82cebe020acde2754 100644
--- a/source/dnode/mnode/impl/inc/mndShow.h
+++ b/source/dnode/mnode/impl/inc/mndShow.h
@@ -27,7 +27,7 @@ void    mndCleanupShow(SMnode *pMnode);
 void    mndAddShowMetaHandle(SMnode *pMnode, EShowType showType, ShowMetaFp fp);
 void    mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp);
 void    mndAddShowFreeIterHandle(SMnode *pMnode, EShowType msgType, ShowFreeIterFp fp);
-void    mnodeVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow);
+void    mndVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow);
 char   *mndShowStr(int32_t showType);
 
 #ifdef __cplusplus
diff --git a/source/dnode/mnode/impl/src/mndAcct.c b/source/dnode/mnode/impl/src/mndAcct.c
index a365ad7326ba2367f57364b81d1031dc6e9a80cb..75b0acbd0a6df8e98b1a3304edb15701284805dc 100644
--- a/source/dnode/mnode/impl/src/mndAcct.c
+++ b/source/dnode/mnode/impl/src/mndAcct.c
@@ -19,12 +19,12 @@
 
 #define SDB_ACCT_VER 1
 
-static int32_t  mnodeCreateDefaultAcct(SMnode *pMnode);
-static SSdbRaw *mnodeAcctActionEncode(SAcctObj *pAcct);
-static SSdbRow *mnodeAcctActionDecode(SSdbRaw *pRaw);
-static int32_t  mnodeAcctActionInsert(SSdb *pSdb, SAcctObj *pAcct);
-static int32_t  mnodeAcctActionDelete(SSdb *pSdb, SAcctObj *pAcct);
-static int32_t  mnodeAcctActionUpdate(SSdb *pSdb, SAcctObj *pOldAcct, SAcctObj *pNewAcct);
+static int32_t  mndCreateDefaultAcct(SMnode *pMnode);
+static SSdbRaw *mndAcctActionEncode(SAcctObj *pAcct);
+static SSdbRow *mndAcctActionDecode(SSdbRaw *pRaw);
+static int32_t  mndAcctActionInsert(SSdb *pSdb, SAcctObj *pAcct);
+static int32_t  mndAcctActionDelete(SSdb *pSdb, SAcctObj *pAcct);
+static int32_t  mndAcctActionUpdate(SSdb *pSdb, SAcctObj *pOldAcct, SAcctObj *pNewAcct);
 static int32_t  mndProcessCreateAcctMsg(SMnodeMsg *pMnodeMsg);
 static int32_t  mndProcessAlterAcctMsg(SMnodeMsg *pMnodeMsg);
 static int32_t  mndProcessDropAcctMsg(SMnodeMsg *pMnodeMsg);
@@ -32,12 +32,12 @@ static int32_t  mndProcessDropAcctMsg(SMnodeMsg *pMnodeMsg);
 int32_t mndInitAcct(SMnode *pMnode) {
   SSdbTable table = {.sdbType = SDB_ACCT,
                      .keyType = SDB_KEY_BINARY,
-                     .deployFp = mnodeCreateDefaultAcct,
-                     .encodeFp = (SdbEncodeFp)mnodeAcctActionEncode,
-                     .decodeFp = (SdbDecodeFp)mnodeAcctActionDecode,
-                     .insertFp = (SdbInsertFp)mnodeAcctActionInsert,
-                     .updateFp = (SdbUpdateFp)mnodeAcctActionUpdate,
-                     .deleteFp = (SdbDeleteFp)mnodeAcctActionDelete};
+                     .deployFp = mndCreateDefaultAcct,
+                     .encodeFp = (SdbEncodeFp)mndAcctActionEncode,
+                     .decodeFp = (SdbDecodeFp)mndAcctActionDecode,
+                     .insertFp = (SdbInsertFp)mndAcctActionInsert,
+                     .updateFp = (SdbUpdateFp)mndAcctActionUpdate,
+                     .deleteFp = (SdbDeleteFp)mndAcctActionDelete};
 
   mndSetMsgHandle(pMnode, TSDB_MSG_TYPE_CREATE_ACCT, mndProcessCreateAcctMsg);
   mndSetMsgHandle(pMnode, TSDB_MSG_TYPE_ALTER_ACCT, mndProcessAlterAcctMsg);
@@ -48,7 +48,7 @@ int32_t mndInitAcct(SMnode *pMnode) {
 
 void mndCleanupAcct(SMnode *pMnode) {}
 
-static int32_t mnodeCreateDefaultAcct(SMnode *pMnode) {
+static int32_t mndCreateDefaultAcct(SMnode *pMnode) {
   SAcctObj acctObj = {0};
   tstrncpy(acctObj.acct, TSDB_DEFAULT_USER, TSDB_USER_LEN);
   acctObj.createdTime = taosGetTimestampMs();
@@ -61,7 +61,7 @@ static int32_t mnodeCreateDefaultAcct(SMnode *pMnode) {
                            .maxStorage = INT64_MAX,
                            .accessState = TSDB_VN_ALL_ACCCESS};
 
-  SSdbRaw *pRaw = mnodeAcctActionEncode(&acctObj);
+  SSdbRaw *pRaw = mndAcctActionEncode(&acctObj);
   if (pRaw == NULL) return -1;
   sdbSetRawStatus(pRaw, SDB_STATUS_READY);
 
@@ -69,7 +69,7 @@ static int32_t mnodeCreateDefaultAcct(SMnode *pMnode) {
   return sdbWrite(pMnode->pSdb, pRaw);
 }
 
-static SSdbRaw *mnodeAcctActionEncode(SAcctObj *pAcct) {
+static SSdbRaw *mndAcctActionEncode(SAcctObj *pAcct) {
   SSdbRaw *pRaw = sdbAllocRaw(SDB_ACCT, SDB_ACCT_VER, sizeof(SAcctObj));
   if (pRaw == NULL) return NULL;
 
@@ -90,7 +90,7 @@ static SSdbRaw *mnodeAcctActionEncode(SAcctObj *pAcct) {
   return pRaw;
 }
 
-static SSdbRow *mnodeAcctActionDecode(SSdbRaw *pRaw) {
+static SSdbRow *mndAcctActionDecode(SSdbRaw *pRaw) {
   int8_t sver = 0;
   if (sdbGetRawSoftVer(pRaw, &sver) != 0) return NULL;
 
@@ -120,18 +120,18 @@ static SSdbRow *mnodeAcctActionDecode(SSdbRaw *pRaw) {
   return pRow;
 }
 
-static int32_t mnodeAcctActionInsert(SSdb *pSdb, SAcctObj *pAcct) {
+static int32_t mndAcctActionInsert(SSdb *pSdb, SAcctObj *pAcct) {
   mTrace("acct:%s, perform insert action", pAcct->acct);
   memset(&pAcct->info, 0, sizeof(SAcctInfo));
   return 0;
 }
 
-static int32_t mnodeAcctActionDelete(SSdb *pSdb, SAcctObj *pAcct) {
+static int32_t mndAcctActionDelete(SSdb *pSdb, SAcctObj *pAcct) {
   mTrace("acct:%s, perform delete action", pAcct->acct);
   return 0;
 }
 
-static int32_t mnodeAcctActionUpdate(SSdb *pSdb, SAcctObj *pOldAcct, SAcctObj *pNewAcct) {
+static int32_t mndAcctActionUpdate(SSdb *pSdb, SAcctObj *pOldAcct, SAcctObj *pNewAcct) {
   mTrace("acct:%s, perform update action", pOldAcct->acct);
 
   memcpy(pOldAcct->acct, pNewAcct->acct, TSDB_USER_LEN);
diff --git a/source/dnode/mnode/impl/src/mndCluster.c b/source/dnode/mnode/impl/src/mndCluster.c
index 7edeb736470faead055430ee02f3b1d54acafddf..0eaa1849077580bde673605fbf485189aebf98f8 100644
--- a/source/dnode/mnode/impl/src/mndCluster.c
+++ b/source/dnode/mnode/impl/src/mndCluster.c
@@ -203,7 +203,7 @@ static int32_t mndRetrieveClusters(SMnodeMsg *pMsg, SShowObj *pShow, char *data,
     numOfRows++;
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index 83975ca77a28c885b13ee90f03b9dbc255a06712..e44e25cbab2f7cdef06d60d240818b0424dce7f3 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -408,7 +408,6 @@ static int32_t mndProcessCreateDbMsg(SMnodeMsg *pMsg) {
   mndReleaseUser(pMnode, pOperUser);
 
   if (code != 0) {
-    terrno = code;
     mError("db:%s, failed to create since %s", pCreate->db, terrstr());
     return -1;
   }
@@ -416,7 +415,7 @@ static int32_t mndProcessCreateDbMsg(SMnodeMsg *pMsg) {
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
 }
 
-static int32_t mnodeSetDbCfgFromAlterDbMsg(SDbObj *pDb, SAlterDbMsg *pAlter) {
+static int32_t mndSetDbCfgFromAlterDbMsg(SDbObj *pDb, SAlterDbMsg *pAlter) {
   bool changed = false;
 
   if (pAlter->totalBlocks >= 0 && pAlter->totalBlocks != pDb->cfg.totalBlocks) {
@@ -522,7 +521,7 @@ static int32_t mndProcessAlterDbMsg(SMnodeMsg *pMsg) {
   SDbObj dbObj = {0};
   memcpy(&dbObj, pDb, sizeof(SDbObj));
 
-  int32_t code = mnodeSetDbCfgFromAlterDbMsg(&dbObj, pAlter);
+  int32_t code = mndSetDbCfgFromAlterDbMsg(&dbObj, pAlter);
   if (code != 0) {
     mndReleaseDb(pMnode, pDb);
     mError("db:%s, failed to alter since %s", pAlter->db, tstrerror(code));
@@ -773,7 +772,7 @@ static int32_t mndGetDbMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaMsg *pMe
   return 0;
 }
 
-char *mnodeGetDbStr(char *src) {
+char *mnGetDbStr(char *src) {
   char *pos = strstr(src, TS_PATH_DELIMITER);
   if (pos != NULL) ++pos;
 
@@ -795,7 +794,7 @@ static int32_t mndRetrieveDbs(SMnodeMsg *pMsg, SShowObj *pShow, char *data, int3
     cols = 0;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    char *name = mnodeGetDbStr(pDb->name);
+    char *name = mnGetDbStr(pDb->name);
     if (name != NULL) {
       STR_WITH_MAXSIZE_TO_VARSTR(pWrite, name, pShow->bytes[cols]);
     } else {
@@ -888,7 +887,7 @@ static int32_t mndRetrieveDbs(SMnodeMsg *pMsg, SShowObj *pShow, char *data, int3
     sdbRelease(pSdb, pDb);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
 
   return numOfRows;
diff --git a/source/dnode/mnode/impl/src/mndDnode.c b/source/dnode/mnode/impl/src/mndDnode.c
index 504be58d091168bbfd6c05f0abeb35eddda3e6e8..ec5f68a71372c0fd22c082d33d1ef5dac3b59c6c 100644
--- a/source/dnode/mnode/impl/src/mndDnode.c
+++ b/source/dnode/mnode/impl/src/mndDnode.c
@@ -612,7 +612,7 @@ static int32_t mndRetrieveConfigs(SMnodeMsg *pMsg, SShowObj *pShow, char *data,
     cols++;
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
@@ -734,7 +734,7 @@ static int32_t mndRetrieveDnodes(SMnodeMsg *pMsg, SShowObj *pShow, char *data, i
     sdbRelease(pSdb, pDnode);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
 
   return numOfRows;
diff --git a/source/dnode/mnode/impl/src/mndFunc.c b/source/dnode/mnode/impl/src/mndFunc.c
index 3fd7dcfba160d10d34e761faa61a032eaf8af6ba..b7158bb0947cc85e2700327421f32b1f2b5d7d2d 100644
--- a/source/dnode/mnode/impl/src/mndFunc.c
+++ b/source/dnode/mnode/impl/src/mndFunc.c
@@ -500,7 +500,7 @@ static int32_t mndRetrieveFuncs(SMnodeMsg *pMsg, SShowObj *pShow, char *data, in
     sdbRelease(pSdb, pFunc);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
diff --git a/source/dnode/mnode/impl/src/mndMnode.c b/source/dnode/mnode/impl/src/mndMnode.c
index e91c51d301a3a9ecc81586d39761648ac975d858..7b6804d43e3c178aa6b3b46ccd681fb9dc127ec8 100644
--- a/source/dnode/mnode/impl/src/mndMnode.c
+++ b/source/dnode/mnode/impl/src/mndMnode.c
@@ -457,7 +457,7 @@ static int32_t mndRetrieveMnodes(SMnodeMsg *pMsg, SShowObj *pShow, char *data, i
     sdbRelease(pSdb, pMnodeObj);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
 
   return numOfRows;
diff --git a/source/dnode/mnode/impl/src/mndProfile.c b/source/dnode/mnode/impl/src/mndProfile.c
index 59d84e5760206d8a331c23ab3a99dd3490d301e5..45a63f2dc57f26ebb0e338988b2a4971b81fc26c 100644
--- a/source/dnode/mnode/impl/src/mndProfile.c
+++ b/source/dnode/mnode/impl/src/mndProfile.c
@@ -252,7 +252,7 @@ static int32_t mndProcessConnectMsg(SMnodeMsg *pMsg) {
   return 0;
 }
 
-static int32_t mnodeSaveQueryStreamList(SConnObj *pConn, SHeartBeatMsg *pMsg) {
+static int32_t mndSaveQueryStreamList(SConnObj *pConn, SHeartBeatMsg *pMsg) {
   pConn->numOfQueries = 0;
   pConn->numOfStreams = 0;
   int32_t numOfQueries = htonl(pMsg->numOfQueries);
@@ -338,7 +338,7 @@ static int32_t mndProcessHeartBeatMsg(SMnodeMsg *pMsg) {
     return -1;
   }
 
-  mnodeSaveQueryStreamList(pConn, pReq);
+  mndSaveQueryStreamList(pConn, pReq);
   if (pConn->killed != 0) {
     pRsp->killConnection = 1;
   }
diff --git a/source/dnode/mnode/impl/src/mndShow.c b/source/dnode/mnode/impl/src/mndShow.c
index 15ae0d1ee420585c533d36b5f492e96622abf5c0..91a229956f290c520b41dba18fe2c9fea38caaca 100644
--- a/source/dnode/mnode/impl/src/mndShow.c
+++ b/source/dnode/mnode/impl/src/mndShow.c
@@ -310,7 +310,7 @@ static bool mndCheckRetrieveFinished(SShowObj *pShow) {
   return false;
 }
 
-void mnodeVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow) {
+void mndVacuumResult(char *data, int32_t numOfCols, int32_t rows, int32_t capacity, SShowObj *pShow) {
   if (rows < capacity) {
     for (int32_t i = 0; i < numOfCols; ++i) {
       memmove(data + pShow->offset[i] * rows, data + pShow->offset[i] * capacity, pShow->bytes[i] * rows);
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index 63bf186be5095f80f71a8071c3df7d3be2ed1a5e..d06099416be5c617ff0231621be212cc7459fda6 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -605,7 +605,7 @@ static int32_t mndGetStbMeta(SMnodeMsg *pMsg, SShowObj *pShow, STableMetaMsg *pM
   return 0;
 }
 
-static void mnodeExtractTableName(char *tableId, char *name) {
+static void mndExtractTableName(char *tableId, char *name) {
   int pos = -1;
   int num = 0;
   for (pos = 0; tableId[pos] != 0; ++pos) {
@@ -665,7 +665,7 @@ static int32_t mndRetrieveStb(SMnodeMsg *pMsg, SShowObj *pShow, char *data, int3
   }
 
   pShow->numOfReads += numOfRows;
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   return numOfRows;
 }
 
diff --git a/source/dnode/mnode/impl/src/mndUser.c b/source/dnode/mnode/impl/src/mndUser.c
index 91adc02d72f142fb3d6e4e49d6858230017c4c26..7219342d599b2e9fe80bf95ba3f9ea716fcb8fc4 100644
--- a/source/dnode/mnode/impl/src/mndUser.c
+++ b/source/dnode/mnode/impl/src/mndUser.c
@@ -486,7 +486,7 @@ static int32_t mndRetrieveUsers(SMnodeMsg *pMsg, SShowObj *pShow, char *data, in
     sdbRelease(pSdb, pUser);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
diff --git a/source/dnode/mnode/impl/src/mndVgroup.c b/source/dnode/mnode/impl/src/mndVgroup.c
index 44d13d1fb498cb41a87fb69ab072d2e26be9895e..ca244fed9f7956b4a6a00eb987201dd60401d929 100644
--- a/source/dnode/mnode/impl/src/mndVgroup.c
+++ b/source/dnode/mnode/impl/src/mndVgroup.c
@@ -284,7 +284,7 @@ static int32_t mndRetrieveVgroups(SMnodeMsg *pMsg, SShowObj *pShow, char *data,
     numOfRows++;
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
@@ -374,7 +374,7 @@ static int32_t mndRetrieveVnodes(SMnodeMsg *pMsg, SShowObj *pShow, char *data, i
     sdbRelease(pSdb, pVgroup);
   }
 
-  mnodeVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
+  mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
   pShow->numOfReads += numOfRows;
   return numOfRows;
 }
diff --git a/source/dnode/mnode/impl/src/mnode.c b/source/dnode/mnode/impl/src/mnode.c
index e5434786083bf74a1546a1f1585b3fa2a17c8d79..24155a4e5329f73fc950e25ef23b942b55a11bf0 100644
--- a/source/dnode/mnode/impl/src/mnode.c
+++ b/source/dnode/mnode/impl/src/mnode.c
@@ -69,7 +69,7 @@ static void mndCleanupTimer(SMnode *pMnode) {
   }
 }
 
-static int32_t mnodeCreateDir(SMnode *pMnode, const char *path) {
+static int32_t mndCreateDir(SMnode *pMnode, const char *path) {
   pMnode->path = strdup(path);
   if (pMnode->path == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -245,7 +245,7 @@ SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
     return NULL;
   }
 
-  int32_t code = mnodeCreateDir(pMnode, path);
+  int32_t code = mndCreateDir(pMnode, path);
   if (code != 0) {
     code = terrno;
     mError("failed to open mnode since %s", terrstr());