diff --git a/include/dnode/mnode/mnode.h b/include/dnode/mnode/mnode.h
index 07a0ca952a..6c3c7497b1 100644
--- a/include/dnode/mnode/mnode.h
+++ b/include/dnode/mnode/mnode.h
@@ -20,6 +20,7 @@
 #include "tmsg.h"
 #include "tmsgcb.h"
 #include "trpc.h"
+#include "sync.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -73,6 +74,7 @@ int32_t mndStart(SMnode *pMnode);
 void mndStop(SMnode *pMnode);
 
 int32_t mndIsCatchUp(SMnode *pMnode);
+ESyncRole mndGetRole(SMnode *pMnode);
 
 /**
  * @brief Get mnode monitor info.
diff --git a/include/libs/sync/sync.h b/include/libs/sync/sync.h
index 33cef538d2..e86a4f9690 100644
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@@ -250,6 +250,7 @@ void    syncPreStop(int64_t rid);
 void    syncPostStop(int64_t rid);
 int32_t syncPropose(int64_t rid, SRpcMsg* pMsg, bool isWeak, int64_t* seq);
 int32_t syncIsCatchUp(int64_t rid);
+ESyncRole syncGetRole(int64_t rid);
 int32_t syncProcessMsg(int64_t rid, SRpcMsg* pMsg);
 int32_t syncReconfig(int64_t rid, SSyncCfg* pCfg);
 int32_t syncBeginSnapshot(int64_t rid, int64_t lastApplyIndex);
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 0d9292cc6b..b7325edf9c 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -403,6 +403,8 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_SNODE_ALREADY_DEPLOYED        TAOS_DEF_ERROR_CODE(0, 0x040F)
 #define TSDB_CODE_SNODE_NOT_FOUND               TAOS_DEF_ERROR_CODE(0, 0x0410)
 #define TSDB_CODE_SNODE_NOT_DEPLOYED            TAOS_DEF_ERROR_CODE(0, 0x0411)
+#define TSDB_CODE_MNODE_NOT_CATCH_UP            TAOS_DEF_ERROR_CODE(0, 0x0412) // internal
+#define TSDB_CODE_MNODE_ALREADY_IS_VOTER        TAOS_DEF_ERROR_CODE(0, 0x0413) // internal
 
 // vnode
 // #define TSDB_CODE_VND_ACTION_IN_PROGRESS     TAOS_DEF_ERROR_CODE(0, 0x0500) // 2.x
@@ -437,6 +439,8 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_VND_STOPPED                   TAOS_DEF_ERROR_CODE(0, 0x0529)
 #define TSDB_CODE_VND_DUP_REQUEST               TAOS_DEF_ERROR_CODE(0, 0x0530)
 #define TSDB_CODE_VND_QUERY_BUSY                TAOS_DEF_ERROR_CODE(0, 0x0531)
+#define TSDB_CODE_VND_NOT_CATCH_UP              TAOS_DEF_ERROR_CODE(0, 0x0532) // internal
+#define TSDB_CODE_VND_ALREADY_IS_VOTER          TAOS_DEF_ERROR_CODE(0, 0x0533) // internal
 
 // tsdb
 #define TSDB_CODE_TDB_INVALID_TABLE_ID          TAOS_DEF_ERROR_CODE(0, 0x0600)
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmInt.c b/source/dnode/mgmt/mgmt_mnode/src/mmInt.c
index 05b59b9865..7840528db9 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmInt.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmInt.c
@@ -159,6 +159,10 @@ static int32_t mmSyncIsCatchUp(SMnodeMgmt *pMgmt) {
   return mndIsCatchUp(pMgmt->pMnode);
 }
 
+static ESyncRole mmSyncGetRole(SMnodeMgmt *pMgmt) {
+  return mndGetRole(pMgmt->pMnode);
+}
+
 SMgmtFunc mmGetMgmtFunc() {
   SMgmtFunc mgmtFunc = {0};
   mgmtFunc.openFp = mmOpen;
@@ -170,6 +174,7 @@ SMgmtFunc mmGetMgmtFunc() {
   mgmtFunc.requiredFp = mmRequire;
   mgmtFunc.getHandlesFp = mmGetMsgHandles;
   mgmtFunc.isCatchUpFp = (NodeIsCatchUpFp)mmSyncIsCatchUp;
+  mgmtFunc.nodeRoleFp = (NodeRole)mmSyncGetRole;
 
   return mgmtFunc;
 }
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 9802930418..9dbc12cf62 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -336,13 +336,23 @@ int32_t vmProcessAlterVnodeTypeReq(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
 
   SVnodeObj *pVnode = vmAcquireVnode(pMgmt, req.vgId);
   if (pVnode == NULL) {
-    dError("vgId:%d, failed to alter hashrange since %s", req.vgId, terrstr());
+    dError("vgId:%d, failed to alter vnode type since %s", req.vgId, terrstr());
     terrno = TSDB_CODE_VND_NOT_EXIST;
     return -1;
   }
 
+  ESyncRole role = vnodeGetRole(pVnode->pImpl);
+  dInfo("vgId:%d, checking node role:%d", req.vgId, role);
+  if(role == TAOS_SYNC_ROLE_VOTER){
+    terrno = TSDB_CODE_VND_ALREADY_IS_VOTER;
+    vmReleaseVnode(pMgmt, pVnode);
+    return -1;
+  }
+
   dInfo("vgId:%d, checking node catch up", req.vgId);
-  if(vnodeIsCatchUp(pVnode->pImpl) != 0){
+  if(vnodeIsCatchUp(pVnode->pImpl) != 1){
+    terrno = TSDB_CODE_VND_NOT_CATCH_UP;
+    vmReleaseVnode(pMgmt, pVnode);
     return -1;
   }
 
@@ -365,6 +375,7 @@ int32_t vmProcessAlterVnodeTypeReq(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
       req.selfIndex >= req.replica || req.learnerSelfIndex >= req.learnerReplica) {
     terrno = TSDB_CODE_INVALID_MSG;
     dError("vgId:%d, failed to alter replica since invalid msg", vgId);
+    vmReleaseVnode(pMgmt, pVnode);
     return -1;
   }
 
@@ -381,6 +392,7 @@ int32_t vmProcessAlterVnodeTypeReq(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
     terrno = TSDB_CODE_INVALID_MSG;
     dError("vgId:%d, dnodeId:%d ep:%s:%u not matched with local dnode", vgId, pReplica->id, pReplica->fqdn,
            pReplica->port);
+    vmReleaseVnode(pMgmt, pVnode);
     return -1;
   }
 
diff --git a/source/dnode/mgmt/node_mgmt/src/dmEnv.c b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
index c53c21cd30..3459af1a3a 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmEnv.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
@@ -214,9 +214,19 @@ static int32_t dmProcessAlterNodeTypeReq(EDndNodeType ntype, SRpcMsg *pMsg) {
 
   pWrapper = &pDnode->wrappers[ntype];
 
+  if(pWrapper->func.nodeRoleFp != NULL){
+    ESyncRole role = (*pWrapper->func.nodeRoleFp)(pWrapper->pMgmt);
+    dInfo("node:%s, checking node role:%d", pWrapper->name, role);
+    if(role == TAOS_SYNC_ROLE_VOTER){
+      terrno = TSDB_CODE_MNODE_ALREADY_IS_VOTER;
+      return -1;
+    }
+  }
+
   if(pWrapper->func.isCatchUpFp != NULL){
     dInfo("node:%s, checking node catch up", pWrapper->name);
-    if(!(*pWrapper->func.isCatchUpFp)(pWrapper->pMgmt) == 0){
+    if((*pWrapper->func.isCatchUpFp)(pWrapper->pMgmt) != 1){
+      terrno = TSDB_CODE_MNODE_NOT_CATCH_UP;
       return -1;
     }
   }
diff --git a/source/dnode/mgmt/node_util/inc/dmUtil.h b/source/dnode/mgmt/node_util/inc/dmUtil.h
index 000ce81207..98ef8cd95b 100644
--- a/source/dnode/mgmt/node_util/inc/dmUtil.h
+++ b/source/dnode/mgmt/node_util/inc/dmUtil.h
@@ -135,6 +135,7 @@ typedef int32_t (*NodeDropFp)(const SMgmtInputOpt *pInput, SRpcMsg *pMsg);
 typedef int32_t (*NodeRequireFp)(const SMgmtInputOpt *pInput, bool *required);
 typedef SArray *(*NodeGetHandlesFp)();  // array of SMgmtHandle
 typedef bool (*NodeIsCatchUpFp)(void *pMgmt);
+typedef bool (*NodeRole)(void *pMgmt);
 
 typedef struct {
   NodeOpenFp       openFp;
@@ -146,6 +147,7 @@ typedef struct {
   NodeRequireFp    requiredFp;
   NodeGetHandlesFp getHandlesFp;
   NodeIsCatchUpFp  isCatchUpFp;
+  NodeRole         nodeRoleFp;
 } SMgmtFunc;
 
 typedef struct {
diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 13ae4a11d5..a9f52128a6 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -590,6 +590,11 @@ int32_t mndIsCatchUp(SMnode *pMnode) {
   return syncIsCatchUp(rid);
 }
 
+ESyncRole mndGetRole(SMnode *pMnode){
+  int64_t rid = pMnode->syncMgmt.sync;
+  return syncGetRole(rid);
+}
+
 void mndStop(SMnode *pMnode) {
   mndSetStop(pMnode);
   mndSyncStop(pMnode);
diff --git a/source/dnode/mnode/impl/src/mndMnode.c b/source/dnode/mnode/impl/src/mndMnode.c
index 53baf843de..5e3476859a 100644
--- a/source/dnode/mnode/impl/src/mndMnode.c
+++ b/source/dnode/mnode/impl/src/mndMnode.c
@@ -322,7 +322,8 @@ static int32_t mndBuildAlterMnodeTypeRedoAction(STrans *pTrans,
       .pCont = pReq,
       .contLen = contLen,
       .msgType = TDMT_DND_ALTER_MNODE_TYPE,
-      .acceptableCode = TSDB_CODE_MNODE_ALREADY_DEPLOYED,
+      .retryCode = TSDB_CODE_MNODE_NOT_CATCH_UP,
+      .acceptableCode = TSDB_CODE_MNODE_ALREADY_IS_VOTER,
   };
 
   if (mndTransAppendRedoAction(pTrans, &action) != 0) {
diff --git a/source/dnode/mnode/impl/src/mndVgroup.c b/source/dnode/mnode/impl/src/mndVgroup.c
index d674db5b4b..f0bece6e5e 100644
--- a/source/dnode/mnode/impl/src/mndVgroup.c
+++ b/source/dnode/mnode/impl/src/mndVgroup.c
@@ -1263,6 +1263,8 @@ int32_t mndAddAlterVnodeTypeAction(SMnode *pMnode, STrans *pTrans, SDbObj *pDb,
   action.pCont = pReq;
   action.contLen = contLen;
   action.msgType = TDMT_DND_ALTER_VNODE_TYPE;
+  action.acceptableCode = TSDB_CODE_VND_ALREADY_IS_VOTER;
+  action.retryCode = TSDB_CODE_VND_NOT_CATCH_UP;
 
   if (mndTransAppendRedoAction(pTrans, &action) != 0) {
     taosMemoryFree(pReq);
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 7dfaf1508d..828a173108 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -69,6 +69,7 @@ void    vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId);
 int32_t vnodeProcessCreateTSma(SVnode *pVnode, void *pCont, uint32_t contLen);
 int32_t vnodeGetAllTableList(SVnode *pVnode, uint64_t uid, SArray *list);
 int32_t vnodeIsCatchUp(SVnode *pVnode);
+ESyncRole vnodeGetRole(SVnode *pVnode);
 
 int32_t vnodeGetCtbIdList(SVnode *pVnode, int64_t suid, SArray *list);
 int32_t vnodeGetCtbIdListByFilter(SVnode *pVnode, int64_t suid, SArray *list, bool (*filter)(void *arg), void *arg);
diff --git a/source/dnode/vnode/src/vnd/vnodeOpen.c b/source/dnode/vnode/src/vnd/vnodeOpen.c
index deeb0af42a..7d41edfdd9 100644
--- a/source/dnode/vnode/src/vnd/vnodeOpen.c
+++ b/source/dnode/vnode/src/vnd/vnodeOpen.c
@@ -431,6 +431,10 @@ int32_t vnodeIsCatchUp(SVnode *pVnode){
   return syncIsCatchUp(pVnode->sync);
 }
 
+ESyncRole vnodeGetRole(SVnode *pVnode){
+  return syncGetRole(pVnode->sync);
+}
+
 void vnodeStop(SVnode *pVnode) {}
 
 int64_t vnodeGetSyncHandle(SVnode *pVnode) { return pVnode->sync; }
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index e3342d76ee..19bb126cb6 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -580,25 +580,37 @@ int32_t syncIsCatchUp(int64_t rid) {
     return -1;
   }
 
-  while(1){
-    if(pSyncNode->pLogBuf->totalIndex < 0 || pSyncNode->pLogBuf->commitIndex < 0 ||
-        pSyncNode->pLogBuf->totalIndex < pSyncNode->pLogBuf->commitIndex ||
-        pSyncNode->pLogBuf->totalIndex - pSyncNode->pLogBuf->commitIndex > SYNC_LEARNER_CATCHUP){
-      sInfo("vgId:%d, Not catch up, wait one second, totalIndex:%" PRId64 " commitIndex:%" PRId64 " matchIndex:%" PRId64, 
-                                    pSyncNode->vgId, pSyncNode->pLogBuf->totalIndex, pSyncNode->pLogBuf->commitIndex, 
-                                    pSyncNode->pLogBuf->matchIndex);
-      taosSsleep(1);
-    }
-    else{
-      sInfo("vgId:%d, Catch up, totalIndex:%" PRId64 " commitIndex:%" PRId64 " matchIndex:%" PRId64, 
-                                    pSyncNode->vgId, pSyncNode->pLogBuf->totalIndex, pSyncNode->pLogBuf->commitIndex,
-                                    pSyncNode->pLogBuf->matchIndex);
-      break;
-    }
+  int32_t isCatchUp = 0;
+  if(pSyncNode->pLogBuf->totalIndex < 0 || pSyncNode->pLogBuf->commitIndex < 0 ||
+      pSyncNode->pLogBuf->totalIndex < pSyncNode->pLogBuf->commitIndex ||
+      pSyncNode->pLogBuf->totalIndex - pSyncNode->pLogBuf->commitIndex > SYNC_LEARNER_CATCHUP){
+    sInfo("vgId:%d, Not catch up, wait one second, totalIndex:%" PRId64 " commitIndex:%" PRId64 " matchIndex:%" PRId64, 
+                                  pSyncNode->vgId, pSyncNode->pLogBuf->totalIndex, pSyncNode->pLogBuf->commitIndex, 
+                                  pSyncNode->pLogBuf->matchIndex);
+    isCatchUp = 0;
+  }
+  else{
+    sInfo("vgId:%d, Catch up, totalIndex:%" PRId64 " commitIndex:%" PRId64 " matchIndex:%" PRId64, 
+                                  pSyncNode->vgId, pSyncNode->pLogBuf->totalIndex, pSyncNode->pLogBuf->commitIndex,
+                                  pSyncNode->pLogBuf->matchIndex);
+    isCatchUp = 1;
   }
   
   syncNodeRelease(pSyncNode);
-  return 0;
+  return isCatchUp;
+}
+
+ESyncRole syncGetRole(int64_t rid) {
+  SSyncNode* pSyncNode = syncNodeAcquire(rid);
+  if (pSyncNode == NULL) {
+    sError("sync Node Acquire error since %d", errno);
+    return -1;
+  }
+
+  ESyncRole role = pSyncNode->raftCfg.cfg.nodeInfo[pSyncNode->raftCfg.cfg.myIndex].nodeRole;
+  
+  syncNodeRelease(pSyncNode);
+  return role;
 }
 
 int32_t syncNodePropose(SSyncNode* pSyncNode, SRpcMsg* pMsg, bool isWeak, int64_t* seq) {