diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index b315432be1c2deb565af64160e244fe76304d623..51f336c3aa174c0dfd311826d5bd340c319a6b8d 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -345,6 +345,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_MND_TOPIC_SUBSCRIBED          TAOS_DEF_ERROR_CODE(0, 0x03EB)
 #define TSDB_CODE_MND_CGROUP_USED               TAOS_DEF_ERROR_CODE(0, 0x03EC)
 #define TSDB_CODE_MND_TOPIC_MUST_BE_DELETED     TAOS_DEF_ERROR_CODE(0, 0x03ED)
+#define TSDB_CODE_MND_INVALID_SUB_OPTION        TAOS_DEF_ERROR_CODE(0, 0x03EE)
 #define TSDB_CODE_MND_IN_REBALANCE              TAOS_DEF_ERROR_CODE(0, 0x03EF)
 
 // mnode-stream
diff --git a/source/dnode/mnode/impl/src/mndSubscribe.c b/source/dnode/mnode/impl/src/mndSubscribe.c
index 854be1c52dfd47174921fb3d5790be47ef1b800b..5cd0adf0841eecfdf9ba1e4d45ea73864f0cc397 100644
--- a/source/dnode/mnode/impl/src/mndSubscribe.c
+++ b/source/dnode/mnode/impl/src/mndSubscribe.c
@@ -96,8 +96,12 @@ static SMqSubscribeObj *mndCreateSub(SMnode *pMnode, const SMqTopicObj *pTopic,
   pSub->subType = pTopic->subType;
   pSub->withMeta = pTopic->withMeta;
 
-  ASSERT(pSub->unassignedVgs->size == 0);
-  ASSERT(taosHashGetSize(pSub->consumerHash) == 0);
+  if (pSub->unassignedVgs->size != 0 || taosHashGetSize(pSub->consumerHash) != 0) {
+    tDeleteSubscribeObj(pSub);
+    taosMemoryFree(pSub);
+    terrno = TSDB_CODE_MND_INVALID_SUB_OPTION;
+    return NULL;
+  }
 
   if (mndSchedInitSubEp(pMnode, pTopic, pSub) < 0) {
     tDeleteSubscribeObj(pSub);
@@ -105,8 +109,12 @@ static SMqSubscribeObj *mndCreateSub(SMnode *pMnode, const SMqTopicObj *pTopic,
     return NULL;
   }
 
-  ASSERT(pSub->unassignedVgs->size > 0);
-  ASSERT(taosHashGetSize(pSub->consumerHash) == 0);
+  if (pSub->unassignedVgs->size <= 0 || taosHashGetSize(pSub->consumerHash) != 0) {
+    tDeleteSubscribeObj(pSub);
+    taosMemoryFree(pSub);
+    terrno = TSDB_CODE_MND_INVALID_SUB_OPTION;
+    return NULL;
+  }
 
   return pSub;
 }
@@ -144,7 +152,10 @@ static int32_t mndBuildSubChangeReq(void **pBuf, int32_t *pLen, const SMqSubscri
 
 static int32_t mndPersistSubChangeVgReq(SMnode *pMnode, STrans *pTrans, const SMqSubscribeObj *pSub,
                                         const SMqRebOutputVg *pRebVg) {
-  ASSERT(pRebVg->oldConsumerId != pRebVg->newConsumerId);
+  if (pRebVg->oldConsumerId == pRebVg->newConsumerId) {
+    terrno = TSDB_CODE_MND_INVALID_SUB_OPTION;
+    return -1;
+  }
 
   void   *buf;
   int32_t tlen;
@@ -155,8 +166,8 @@ static int32_t mndPersistSubChangeVgReq(SMnode *pMnode, STrans *pTrans, const SM
   int32_t vgId = pRebVg->pVgEp->vgId;
   SVgObj *pVgObj = mndAcquireVgroup(pMnode, vgId);
   if (pVgObj == NULL) {
-    ASSERT(0);
     taosMemoryFree(buf);
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
 
@@ -206,9 +217,9 @@ static SMqRebInfo *mndGetOrCreateRebSub(SHashObj *pHash, const char *key) {
 }
 
 static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqRebOutputObj *pOutput) {
-  int32_t totalVgNum = pOutput->pSub->vgNum;
-
-  mInfo("mq rebalance: subscription: %s, vgNum: %d", pOutput->pSub->key, pOutput->pSub->vgNum);
+  int32_t     totalVgNum = pOutput->pSub->vgNum;
+  const char *sub = pOutput->pSub->key;
+  mInfo("sub:%s, mq rebalance vgNum:%d", sub, pOutput->pSub->vgNum);
 
   // 1. build temporary hash(vgId -> SMqRebOutputVg) to store modified vg
   SHashObj *pHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
@@ -218,11 +229,24 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
   int32_t actualRemoved = 0;
   for (int32_t i = 0; i < removedNum; i++) {
     int64_t consumerId = *(int64_t *)taosArrayGet(pInput->pRebInfo->removedConsumers, i);
-    ASSERT(consumerId > 0);
+    if (consumerId <= 0) {
+      mError("sub:%s, mq rebalance cunsumerId:%" PRId64 " <= 0", sub, consumerId);
+      continue;
+    }
+
     SMqConsumerEp *pConsumerEp = taosHashGet(pOutput->pSub->consumerHash, &consumerId, sizeof(int64_t));
-    ASSERT(pConsumerEp);
+    if (pConsumerEp == NULL) {
+      mError("sub:%s, mq rebalance ep is null, cunsumberId:%" PRId64, sub, consumerId);
+      continue;
+    }
+
     if (pConsumerEp) {
-      ASSERT(consumerId == pConsumerEp->consumerId);
+      if (consumerId != pConsumerEp->consumerId) {
+        mError("sub:%s, mq rebalance cunsumberId:%" PRId64 " not matched saved:%" PRId64, sub, consumerId,
+               pConsumerEp->consumerId);
+        continue;
+      }
+
       actualRemoved++;
       int32_t consumerVgNum = taosArrayGetSize(pConsumerEp->vgs);
       for (int32_t j = 0; j < consumerVgNum; j++) {
@@ -233,7 +257,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
             .pVgEp = pVgEp,
         };
         taosHashPut(pHash, &pVgEp->vgId, sizeof(int32_t), &outputVg, sizeof(SMqRebOutputVg));
-        mInfo("mq rebalance: remove vgId:%d from consumer:%" PRId64, pVgEp->vgId, consumerId);
+        mInfo("sub:%s, mq rebalance remove vgId:%d from consumer:%" PRId64, sub, pVgEp->vgId, consumerId);
       }
       taosArrayDestroy(pConsumerEp->vgs);
       taosHashRemove(pOutput->pSub->consumerHash, &consumerId, sizeof(int64_t));
@@ -241,7 +265,10 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       taosArrayPush(pOutput->removedConsumers, &consumerId);
     }
   }
-  ASSERT(removedNum == actualRemoved);
+
+  if (removedNum != actualRemoved) {
+    mError("sub:%s, mq rebalance removedNum:%d not matched with actual:%d", sub, removedNum, actualRemoved);
+  }
 
   // if previously no consumer, there are vgs not assigned
   {
@@ -254,7 +281,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
           .pVgEp = pVgEp,
       };
       taosHashPut(pHash, &pVgEp->vgId, sizeof(int32_t), &rebOutput, sizeof(SMqRebOutputVg));
-      mInfo("mq rebalance: remove vgId:%d from unassigned", pVgEp->vgId);
+      mInfo("sub:%s, mq rebalance remove vgId:%d from unassigned", sub, pVgEp->vgId);
     }
   }
 
@@ -268,8 +295,8 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
     minVgCnt = totalVgNum / afterRebConsumerNum;
     imbConsumerNum = totalVgNum % afterRebConsumerNum;
   }
-  mInfo("mq rebalance: %d consumer after rebalance, at least %d vg each, %d consumer has more vg", afterRebConsumerNum,
-        minVgCnt, imbConsumerNum);
+  mInfo("sub:%s, mq rebalance %d consumer after rebalance, at least %d vg each, %d consumer has more vg", sub,
+        afterRebConsumerNum, minVgCnt, imbConsumerNum);
 
   // 4. first scan: remove consumer more than wanted, put to remove hash
   int32_t imbCnt = 0;
@@ -278,7 +305,11 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
     pIter = taosHashIterate(pOutput->pSub->consumerHash, pIter);
     if (pIter == NULL) break;
     SMqConsumerEp *pConsumerEp = (SMqConsumerEp *)pIter;
-    ASSERT(pConsumerEp->consumerId > 0);
+    if (pConsumerEp->consumerId <= 0) {
+      mError("sub:%s, mq rebalance cunsumberId:%" PRId64 " <= 0", sub, pConsumerEp->consumerId);
+      continue;
+    }
+
     int32_t consumerVgNum = taosArrayGetSize(pConsumerEp->vgs);
     // all old consumers still existing are touched
     // TODO optimize: touch only consumer whose vgs changed
@@ -298,7 +329,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
                 .pVgEp = pVgEp,
             };
             taosHashPut(pHash, &pVgEp->vgId, sizeof(int32_t), &outputVg, sizeof(SMqRebOutputVg));
-            mInfo("mq rebalance: remove vgId:%d from consumer:%" PRId64 ",(first scan)", pVgEp->vgId,
+            mInfo("sub:%s, mq rebalance remove vgId:%d from consumer:%" PRId64 ",(first scan)", sub, pVgEp->vgId,
                   pConsumerEp->consumerId);
           }
           imbCnt++;
@@ -313,7 +344,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
               .pVgEp = pVgEp,
           };
           taosHashPut(pHash, &pVgEp->vgId, sizeof(int32_t), &outputVg, sizeof(SMqRebOutputVg));
-          mInfo("mq rebalance: remove vgId:%d from consumer:%" PRId64 ",(first scan)", pVgEp->vgId,
+          mInfo("sub:%s, mq rebalance remove vgId:%d from consumer:%" PRId64 ",(first scan)", sub, pVgEp->vgId,
                 pConsumerEp->consumerId);
         }
       }
@@ -325,13 +356,17 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
     int32_t consumerNum = taosArrayGetSize(pInput->pRebInfo->newConsumers);
     for (int32_t i = 0; i < consumerNum; i++) {
       int64_t consumerId = *(int64_t *)taosArrayGet(pInput->pRebInfo->newConsumers, i);
-      ASSERT(consumerId > 0);
+      if (consumerId <= 0) {
+        mError("sub:%s, mq rebalance cunsumberId:%" PRId64 " <= 0", sub, consumerId);
+        continue;
+      }
+
       SMqConsumerEp newConsumerEp;
       newConsumerEp.consumerId = consumerId;
       newConsumerEp.vgs = taosArrayInit(0, sizeof(void *));
       taosHashPut(pOutput->pSub->consumerHash, &consumerId, sizeof(int64_t), &newConsumerEp, sizeof(SMqConsumerEp));
       taosArrayPush(pOutput->newConsumers, &consumerId);
-      mInfo("mq rebalance: add new consumer:%" PRId64, consumerId);
+      mInfo("sub:%s, mq rebalance add new consumer:%" PRId64, sub, consumerId);
     }
   }
 
@@ -344,13 +379,18 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
     pIter = taosHashIterate(pOutput->pSub->consumerHash, pIter);
     if (pIter == NULL) break;
     SMqConsumerEp *pConsumerEp = (SMqConsumerEp *)pIter;
-    ASSERT(pConsumerEp->consumerId > 0);
+    if (pConsumerEp->consumerId <= 0) {
+      mError("sub:%s, mq rebalance cunsumberId:%" PRId64 " <= 0", sub, pConsumerEp->consumerId);
+      continue;
+    }
 
     // push until equal minVg
     while (taosArrayGetSize(pConsumerEp->vgs) < minVgCnt) {
       // iter hash and find one vg
       pRemovedIter = taosHashIterate(pHash, pRemovedIter);
-      ASSERT(pRemovedIter);
+      mError("sub:%s, removed iter is null", sub);
+      continue;
+
       pRebVg = (SMqRebOutputVg *)pRemovedIter;
       // push
       taosArrayPush(pConsumerEp->vgs, &pRebVg->pVgEp);
@@ -361,7 +401,6 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
     }
   }
 
-  ASSERT(pIter == NULL);
   // 7. handle unassigned vg
   if (taosHashGetSize(pOutput->pSub->consumerHash) != 0) {
     // if has consumer, assign all left vg
@@ -377,9 +416,12 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       }
       while (1) {
         pIter = taosHashIterate(pOutput->pSub->consumerHash, pIter);
-        ASSERT(pIter);
         pConsumerEp = (SMqConsumerEp *)pIter;
-        ASSERT(pConsumerEp->consumerId > 0);
+        if (pConsumerEp == NULL || pConsumerEp->consumerId <= 0) {
+          mError("sub:%s, mq rebalance cunsumberId invalid", sub);
+          continue;
+        }
+
         if (taosArrayGetSize(pConsumerEp->vgs) == minVgCnt) {
           break;
         }
@@ -404,19 +446,23 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       pIter = taosHashIterate(pHash, pIter);
       if (pIter == NULL) break;
       pRebOutput = (SMqRebOutputVg *)pIter;
-      ASSERT(pRebOutput->newConsumerId == -1);
+      if (pRebOutput->newConsumerId != 1) {
+        mError("sub:%s, mq rebalance output consumerId:%" PRId64 " not -1", sub, pRebOutput->newConsumerId);
+        continue;
+      }
+
       taosArrayPush(pOutput->pSub->unassignedVgs, &pRebOutput->pVgEp);
       taosArrayPush(pOutput->rebVgs, pRebOutput);
-      mInfo("mq rebalance: unassign vgId:%d (second scan)", pRebOutput->pVgEp->vgId);
+      mInfo("sub:%s, mq rebalance unassign vgId:%d (second scan)", sub, pRebOutput->pVgEp->vgId);
     }
   }
 
   // 8. generate logs
-  mInfo("mq rebalance: calculation completed, rebalanced vg:");
+  mInfo("sub:%s, mq rebalance calculation completed, rebalanced vg", sub);
   for (int32_t i = 0; i < taosArrayGetSize(pOutput->rebVgs); i++) {
     SMqRebOutputVg *pOutputRebVg = taosArrayGet(pOutput->rebVgs, i);
-    mInfo("mq rebalance: vgId:%d, moved from consumer:%" PRId64 ", to consumer:%" PRId64, pOutputRebVg->pVgEp->vgId,
-          pOutputRebVg->oldConsumerId, pOutputRebVg->newConsumerId);
+    mInfo("sub:%s, mq rebalance vgId:%d, moved from consumer:%" PRId64 ", to consumer:%" PRId64, sub,
+          pOutputRebVg->pVgEp->vgId, pOutputRebVg->oldConsumerId, pOutputRebVg->newConsumerId);
   }
   {
     void *pIter = NULL;
@@ -425,10 +471,11 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       if (pIter == NULL) break;
       SMqConsumerEp *pConsumerEp = (SMqConsumerEp *)pIter;
       int32_t        sz = taosArrayGetSize(pConsumerEp->vgs);
-      mInfo("mq rebalance: final cfg: consumer %" PRId64 " has %d vg", pConsumerEp->consumerId, sz);
+      mInfo("sub:%s, mq rebalance final cfg: consumer %" PRId64 " has %d vg", sub, pConsumerEp->consumerId, sz);
       for (int32_t i = 0; i < sz; i++) {
         SMqVgEp *pVgEp = taosArrayGetP(pConsumerEp->vgs, i);
-        mInfo("mq rebalance: final cfg: vg %d to consumer %" PRId64 "", pVgEp->vgId, pConsumerEp->consumerId);
+        mInfo("sub:%s, mq rebalance final cfg: vg %d to consumer %" PRId64 "", sub, pVgEp->vgId,
+              pConsumerEp->consumerId);
       }
     }
   }
@@ -487,7 +534,8 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SRpcMsg *pMsg, const SMqRebOu
   consumerNum = taosArrayGetSize(pOutput->newConsumers);
   for (int32_t i = 0; i < consumerNum; i++) {
     int64_t consumerId = *(int64_t *)taosArrayGet(pOutput->newConsumers, i);
-    ASSERT(consumerId > 0);
+    if (consumerId <= 0) continue;
+
     SMqConsumerObj *pConsumerOld = mndAcquireConsumer(pMnode, consumerId);
     SMqConsumerObj *pConsumerNew = tNewSMqConsumerObj(pConsumerOld->consumerId, pConsumerOld->cgroup);
     pConsumerNew->updateType = CONSUMER_UPDATE__ADD;
@@ -497,7 +545,6 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SRpcMsg *pMsg, const SMqRebOu
     taosArrayPush(pConsumerNew->rebNewTopics, &topic);
     mndReleaseConsumer(pMnode, pConsumerOld);
     if (mndSetConsumerCommitLogs(pMnode, pTrans, pConsumerNew) != 0) {
-      ASSERT(0);
       tDeleteSMqConsumerObj(pConsumerNew);
       taosMemoryFree(pConsumerNew);
       goto REB_FAIL;
@@ -510,7 +557,8 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SRpcMsg *pMsg, const SMqRebOu
   consumerNum = taosArrayGetSize(pOutput->removedConsumers);
   for (int32_t i = 0; i < consumerNum; i++) {
     int64_t consumerId = *(int64_t *)taosArrayGet(pOutput->removedConsumers, i);
-    ASSERT(consumerId > 0);
+    if (consumerId <= 0) continue;
+
     SMqConsumerObj *pConsumerOld = mndAcquireConsumer(pMnode, consumerId);
     SMqConsumerObj *pConsumerNew = tNewSMqConsumerObj(pConsumerOld->consumerId, pConsumerOld->cgroup);
     pConsumerNew->updateType = CONSUMER_UPDATE__REMOVE;
@@ -520,7 +568,6 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SRpcMsg *pMsg, const SMqRebOu
     taosArrayPush(pConsumerNew->rebRemovedTopics, &topic);
     mndReleaseConsumer(pMnode, pConsumerOld);
     if (mndSetConsumerCommitLogs(pMnode, pTrans, pConsumerNew) != 0) {
-      ASSERT(0);
       tDeleteSMqConsumerObj(pConsumerNew);
       taosMemoryFree(pConsumerNew);
       goto REB_FAIL;
@@ -577,7 +624,6 @@ static int32_t mndProcessRebalanceReq(SRpcMsg *pMsg) {
       char cgroup[TSDB_CGROUP_LEN];
       mndSplitSubscribeKey(pRebInfo->key, topic, cgroup, true);
       SMqTopicObj *pTopic = mndAcquireTopic(pMnode, topic);
-      /*ASSERT(pTopic);*/
       if (pTopic == NULL) {
         mError("mq rebalance %s failed since topic %s not exist, abort", pRebInfo->key, topic);
         continue;
@@ -586,7 +632,6 @@ static int32_t mndProcessRebalanceReq(SRpcMsg *pMsg) {
 
       rebOutput.pSub = mndCreateSub(pMnode, pTopic, pRebInfo->key);
       memcpy(rebOutput.pSub->dbName, pTopic->db, TSDB_DB_FNAME_LEN);
-      ASSERT(taosHashGetSize(rebOutput.pSub->consumerHash) == 0);
 
       taosRUnLockLatch(&pTopic->lock);
       mndReleaseTopic(pMnode, pTopic);
@@ -606,7 +651,6 @@ static int32_t mndProcessRebalanceReq(SRpcMsg *pMsg) {
 
     // if add more consumer to balanced subscribe,
     // possibly no vg is changed
-    /*ASSERT(taosArrayGetSize(rebOutput.rebVgs) != 0);*/
 
     if (mndPersistRebResult(pMnode, pMsg, &rebOutput) < 0) {
       mError("mq rebalance persist rebalance output error, possibly vnode splitted or dropped");
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 6f8b0d8e04b06b39602134fc3f0711fd85edf787..14c3df38a7583f9e38acf936cebce78d7d6f77aa 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -276,8 +276,9 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_SUBSCRIBE_NOT_EXIST,      "Subcribe not exist")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_OFFSET_NOT_EXIST,         "Offset not exist")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_CONSUMER_NOT_READY,       "Consumer not ready")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOPIC_SUBSCRIBED,         "Topic subscribed cannot be dropped")
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOPIC_MUST_BE_DELETED,    "Topic must be dropped first")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_CGROUP_USED,              "Consumer group being used by some consumer")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOPIC_MUST_BE_DELETED,    "Topic must be dropped first")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_SUB_OPTION,       "Invalid subscribe option")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_IN_REBALANCE,             "Topic being rebalanced")
 
 // mnode-stream