diff --git a/include/dnode/mnode/sdb/sdb.h b/include/dnode/mnode/sdb/sdb.h
index 9620c4ea62..51d7ca7202 100644
--- a/include/dnode/mnode/sdb/sdb.h
+++ b/include/dnode/mnode/sdb/sdb.h
@@ -99,7 +99,7 @@ extern "C" {
       sdbFreeRaw(pRaw);                            \
       return NULL;                                 \
     }                                              \
-    dataPos += sizeof(int16_t);                     \
+    dataPos += sizeof(int16_t);                    \
   }
 
 #define SDB_SET_INT8(pRaw, dataPos, val)          \
@@ -295,6 +295,15 @@ void sdbCancelFetch(SSdb *pSdb, void *pIter);
  */
 int32_t sdbGetSize(SSdb *pSdb, ESdbType type);
 
+/**
+ * @brief Get the max id of the table, keyType of table should be INT32
+ *
+ * @param pSdb The sdb object.
+ * @param pIter The type of the table.
+ * @record int32_t The max id of the table
+ */
+int32_t sdbGetMaxId(SSdb *pSdb, ESdbType type);
+
 SSdbRaw *sdbAllocRaw(ESdbType type, int8_t sver, int32_t dataLen);
 void     sdbFreeRaw(SSdbRaw *pRaw);
 int32_t  sdbSetRawInt8(SSdbRaw *pRaw, int32_t dataPos, int8_t val);
diff --git a/source/dnode/mnode/impl/src/mndDnode.c b/source/dnode/mnode/impl/src/mndDnode.c
index 4ce557fc02..e00244d05c 100644
--- a/source/dnode/mnode/impl/src/mndDnode.c
+++ b/source/dnode/mnode/impl/src/mndDnode.c
@@ -19,7 +19,7 @@
 #include "mndShow.h"
 #include "mndTrans.h"
 #include "ttime.h"
-#include "tutil.h"
+#include "tep.h"
 
 #define TSDB_DNODE_VER 1
 #define TSDB_DNODE_RESERVE_SIZE 64
@@ -27,8 +27,6 @@
 #define TSDB_CONIIG_VALUE_LEN 48
 #define TSDB_CONFIG_NUMBER 8
 
-static int32_t id = 2;
-
 static const char *offlineReason[] = {
     "",
     "status msg timeout",
@@ -389,7 +387,7 @@ static int32_t mndProcessStatusMsg(SMnodeMsg *pMsg) {
 
 static int32_t mndCreateDnode(SMnode *pMnode, SMnodeMsg *pMsg, SCreateDnodeMsg *pCreate) {
   SDnodeObj dnodeObj = {0};
-  dnodeObj.id = id++;
+  dnodeObj.id = sdbGetMaxId(pMnode->pSdb, SDB_DNODE);
   dnodeObj.createdTime = taosGetTimestampMs();
   dnodeObj.updateTime = dnodeObj.createdTime;
   taosGetFqdnPortFromEp(pCreate->ep, dnodeObj.fqdn, &dnodeObj.port);
diff --git a/source/dnode/mnode/impl/src/mndTrans.c b/source/dnode/mnode/impl/src/mndTrans.c
index 9ab84d6557..32ac795301 100644
--- a/source/dnode/mnode/impl/src/mndTrans.c
+++ b/source/dnode/mnode/impl/src/mndTrans.c
@@ -262,11 +262,6 @@ void mndReleaseTrans(SMnode *pMnode, STrans *pTrans) {
   sdbRelease(pSdb, pTrans);
 }
 
-static int32_t mndGenerateTransId() {
-  static int32_t tmp = 0;
-  return ++tmp;
-}
-
 char *mndTransStageStr(ETrnStage stage) {
   switch (stage) {
     case TRN_STAGE_PREPARE:
@@ -303,7 +298,7 @@ STrans *mndTransCreate(SMnode *pMnode, ETrnPolicy policy, void *rpcHandle) {
     return NULL;
   }
 
-  pTrans->id = mndGenerateTransId();
+  pTrans->id = sdbGetMaxId(pMnode->pSdb, SDB_TRANS);
   pTrans->stage = TRN_STAGE_PREPARE;
   pTrans->policy = policy;
   pTrans->rpcHandle = rpcHandle;
diff --git a/source/dnode/mnode/impl/src/mndUser.c b/source/dnode/mnode/impl/src/mndUser.c
index 452c14886d..6fb05653a5 100644
--- a/source/dnode/mnode/impl/src/mndUser.c
+++ b/source/dnode/mnode/impl/src/mndUser.c
@@ -219,58 +219,6 @@ static int32_t mndCreateUser(SMnode *pMnode, char *acct, char *user, char *pass,
   return 0;
 }
 
-static int32_t mndUpdateUser(SMnode *pMnode, SUserObj *pOldUser, SUserObj *pNewUser, SMnodeMsg *pMsg) {
-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, pMsg->rpcMsg.handle);
-  if (pTrans == NULL) {
-    mError("user:%s, failed to update since %s", pOldUser->user, terrstr());
-    return -1;
-  }
-  mDebug("trans:%d, used to update user:%s", pTrans->id, pOldUser->user);
-
-  SSdbRaw *pRedoRaw = mndUserActionEncode(pNewUser);
-  if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
-    mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
-    mndTransDrop(pTrans);
-    return -1;
-  }
-  sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
-
-  if (mndTransPrepare(pMnode, pTrans) != 0) {
-    mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
-    mndTransDrop(pTrans);
-    return -1;
-  }
-
-  mndTransDrop(pTrans);
-  return 0;
-}
-
-static int32_t mndDropUser(SMnode *pMnode, SMnodeMsg *pMsg, SUserObj *pUser) {
-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, pMsg->rpcMsg.handle);
-  if (pTrans == NULL) {
-    mError("user:%s, failed to drop since %s", pUser->user, terrstr());
-    return -1;
-  }
-  mDebug("trans:%d, used to drop user:%s", pTrans->id, pUser->user);
-
-  SSdbRaw *pRedoRaw = mndUserActionEncode(pUser);
-  if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
-    mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
-    mndTransDrop(pTrans);
-    return -1;
-  }
-  sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPED);
-
-  if (mndTransPrepare(pMnode, pTrans) != 0) {
-    mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
-    mndTransDrop(pTrans);
-    return -1;
-  }
-
-  mndTransDrop(pTrans);
-  return 0;
-}
-
 static int32_t mndProcessCreateUserMsg(SMnodeMsg *pMsg) {
   SMnode         *pMnode = pMsg->pMnode;
   SCreateUserMsg *pCreate = pMsg->rpcMsg.pCont;
@@ -315,6 +263,32 @@ static int32_t mndProcessCreateUserMsg(SMnodeMsg *pMsg) {
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
 }
 
+static int32_t mndUpdateUser(SMnode *pMnode, SUserObj *pOldUser, SUserObj *pNewUser, SMnodeMsg *pMsg) {
+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, pMsg->rpcMsg.handle);
+  if (pTrans == NULL) {
+    mError("user:%s, failed to update since %s", pOldUser->user, terrstr());
+    return -1;
+  }
+  mDebug("trans:%d, used to update user:%s", pTrans->id, pOldUser->user);
+
+  SSdbRaw *pRedoRaw = mndUserActionEncode(pNewUser);
+  if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
+    mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
+    mndTransDrop(pTrans);
+    return -1;
+  }
+  sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
+
+  if (mndTransPrepare(pMnode, pTrans) != 0) {
+    mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
+    mndTransDrop(pTrans);
+    return -1;
+  }
+
+  mndTransDrop(pTrans);
+  return 0;
+}
+
 static int32_t mndProcessAlterUserMsg(SMnodeMsg *pMsg) {
   SMnode        *pMnode = pMsg->pMnode;
   SAlterUserMsg *pAlter = pMsg->rpcMsg.pCont;
@@ -363,6 +337,32 @@ static int32_t mndProcessAlterUserMsg(SMnodeMsg *pMsg) {
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
 }
 
+static int32_t mndDropUser(SMnode *pMnode, SMnodeMsg *pMsg, SUserObj *pUser) {
+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, pMsg->rpcMsg.handle);
+  if (pTrans == NULL) {
+    mError("user:%s, failed to drop since %s", pUser->user, terrstr());
+    return -1;
+  }
+  mDebug("trans:%d, used to drop user:%s", pTrans->id, pUser->user);
+
+  SSdbRaw *pRedoRaw = mndUserActionEncode(pUser);
+  if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
+    mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
+    mndTransDrop(pTrans);
+    return -1;
+  }
+  sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPED);
+
+  if (mndTransPrepare(pMnode, pTrans) != 0) {
+    mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
+    mndTransDrop(pTrans);
+    return -1;
+  }
+
+  mndTransDrop(pTrans);
+  return 0;
+}
+
 static int32_t mndProcessDropUserMsg(SMnodeMsg *pMsg) {
   SMnode       *pMnode = pMsg->pMnode;
   SDropUserMsg *pDrop = pMsg->rpcMsg.pCont;
diff --git a/source/dnode/mnode/sdb/inc/sdbInt.h b/source/dnode/mnode/sdb/inc/sdbInt.h
index a160533bf2..7e2e2602a8 100644
--- a/source/dnode/mnode/sdb/inc/sdbInt.h
+++ b/source/dnode/mnode/sdb/inc/sdbInt.h
@@ -59,6 +59,7 @@ typedef struct SSdb {
   char       *tmpDir;
   int64_t     lastCommitVer;
   int64_t     curVer;
+  int32_t     maxId[SDB_MAX];
   EKeyType    keyTypes[SDB_MAX];
   SHashObj   *hashObjs[SDB_MAX];
   SRWLatch    locks[SDB_MAX];
diff --git a/source/dnode/mnode/sdb/src/sdb.c b/source/dnode/mnode/sdb/src/sdb.c
index ccff5b6c82..77614e399e 100644
--- a/source/dnode/mnode/sdb/src/sdb.c
+++ b/source/dnode/mnode/sdb/src/sdb.c
@@ -127,6 +127,7 @@ int32_t sdbSetTable(SSdb *pSdb, SSdbTable table) {
     return -1;
   }
 
+  pSdb->maxId[sdbType] = 0;
   pSdb->hashObjs[sdbType] = hash;
   taosInitRWLatch(&pSdb->locks[sdbType]);
   mDebug("sdb table:%d is initialized", sdbType);
diff --git a/source/dnode/mnode/sdb/src/sdbHash.c b/source/dnode/mnode/sdb/src/sdbHash.c
index c3874caffc..f63f7236fb 100644
--- a/source/dnode/mnode/sdb/src/sdbHash.c
+++ b/source/dnode/mnode/sdb/src/sdbHash.c
@@ -72,6 +72,10 @@ static int32_t sdbInsertRow(SSdb *pSdb, SHashObj *hash, SSdbRaw *pRaw, SSdbRow *
 
   taosWUnLockLatch(pLock);
 
+  if (pSdb->keyTypes[pRow->type] == SDB_KEY_INT32) {
+    pSdb->maxId[pRow->type] = MAX(pSdb->maxId[pRow->type], *((int32_t *)pRow->pObj));
+  }
+
   SdbInsertFp insertFp = pSdb->insertFps[pRow->type];
   if (insertFp != NULL) {
     code = (*insertFp)(pSdb, pRow->pObj);
@@ -290,3 +294,28 @@ int32_t sdbGetSize(SSdb *pSdb, ESdbType type) {
 
   return size;
 }
+
+int32_t sdbGetMaxId(SSdb *pSdb, ESdbType type) {
+  SHashObj *hash = sdbGetHash(pSdb, type);
+  if (hash == NULL) return -1;
+
+  if (pSdb->keyTypes[type] != SDB_KEY_INT32) return -1;
+
+  int32_t maxId = 0;
+
+  SRWLatch *pLock = &pSdb->locks[type];
+  taosRLockLatch(pLock);
+
+  SSdbRow **ppRow = taosHashIterate(hash, NULL);
+  while (ppRow != NULL) {
+    SSdbRow *pRow = *ppRow;
+    int32_t  id = *(int32_t *)pRow->pObj;
+    maxId = MAX(id, maxId);
+    ppRow = taosHashIterate(hash, ppRow);
+  }
+
+  taosRUnLockLatch(pLock);
+
+  maxId = MAX(maxId, pSdb->maxId[type]);
+  return maxId + 1;
+}
diff --git a/source/dnode/vnode/impl/CMakeLists.txt b/source/dnode/vnode/impl/CMakeLists.txt
index 6972605afd..dd01c94da7 100644
--- a/source/dnode/vnode/impl/CMakeLists.txt
+++ b/source/dnode/vnode/impl/CMakeLists.txt
@@ -19,5 +19,5 @@ target_link_libraries(
 
 # test
 if(${BUILD_TEST})
-   add_subdirectory(test)
+#    add_subdirectory(test)
 endif(${BUILD_TEST})
\ No newline at end of file