diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
index e50b527bac..d3d92e1bbf 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
@@ -56,6 +56,9 @@ static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   if (IsReq(pMsg) && pMsg->info.handle != NULL && code != TSDB_CODE_ACTION_IN_PROGRESS) {
     if (code != 0 && terrno != 0) code = terrno;
     mmSendRsp(pMsg, code);
+  } else {
+    rpcFreeCont(pMsg->info.rsp);
+    pMsg->info.rsp = NULL;
   }
 
   if (code == TSDB_CODE_RPC_REDIRECT) {
diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index dcfc046a1e..b5ddd6f279 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -577,9 +577,9 @@ static int32_t mndCheckMnodeState(SRpcMsg *pMsg) {
 
     int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
     pMsg->info.rsp = rpcMallocCont(contLen);
-    pMsg->info.hasEpSet = 1;
     if (pMsg->info.rsp != NULL) {
       tSerializeSEpSet(pMsg->info.rsp, contLen, &epSet);
+      pMsg->info.hasEpSet = 1;
       pMsg->info.rspLen = contLen;
       terrno = TSDB_CODE_RPC_REDIRECT;
     } else {
diff --git a/source/libs/transport/src/tmsgcb.c b/source/libs/transport/src/tmsgcb.c
index 1cd1903851..0d1644be2d 100644
--- a/source/libs/transport/src/tmsgcb.c
+++ b/source/libs/transport/src/tmsgcb.c
@@ -44,7 +44,13 @@ int32_t tmsgSendReq(const SEpSet* epSet, SRpcMsg* pMsg) {
   return code;
 }
 
-void tmsgSendRsp(SRpcMsg* pMsg) { return (*defaultMsgCb.sendRspFp)(pMsg); }
+void tmsgSendRsp(SRpcMsg* pMsg) {
+#if 1
+  rpcSendResponse(pMsg);
+#else
+  return (*defaultMsgCb.sendRspFp)(pMsg);
+#endif
+}
 
 void tmsgSendRedirectRsp(SRpcMsg* pMsg, const SEpSet* pNewEpSet) { (*defaultMsgCb.sendRedirectRspFp)(pMsg, pNewEpSet); }
 
diff --git a/source/libs/transport/src/transSvr.c b/source/libs/transport/src/transSvr.c
index 5f36d91023..8dd3628c5f 100644
--- a/source/libs/transport/src/transSvr.c
+++ b/source/libs/transport/src/transSvr.c
@@ -462,8 +462,6 @@ static void uvStartSendResp(SSvrMsg* smsg) {
   if (pConn->broken == true) {
     // persist by
     destroySmsg(smsg);
-    // transFreeMsg(smsg->msg.pCont);
-    // taosMemoryFree(smsg);
     transUnrefSrvHandle(pConn);
     return;
   }
@@ -1234,7 +1232,9 @@ int transReleaseSrvHandle(void* handle) {
   m->type = Release;
 
   tTrace("%s conn %p start to release", transLabel(pThrd->pTransInst), exh->handle);
-  transAsyncSend(pThrd->asyncPool, &m->q);
+  if (0 != transAsyncSend(pThrd->asyncPool, &m->q)) {
+    destroySmsg(m);
+  }
 
   transReleaseExHandle(transGetRefMgt(), refId);
   return 0;
@@ -1269,7 +1269,9 @@ int transSendResponse(const STransMsg* msg) {
 
   STraceId* trace = (STraceId*)&msg->info.traceId;
   tGTrace("conn %p start to send resp (1/2)", exh->handle);
-  transAsyncSend(pThrd->asyncPool, &m->q);
+  if (0 != transAsyncSend(pThrd->asyncPool, &m->q)) {
+    destroySmsg(m);
+  }
 
   transReleaseExHandle(transGetRefMgt(), refId);
   return 0;
@@ -1303,7 +1305,9 @@ int transRegisterMsg(const STransMsg* msg) {
 
   STrans* pTransInst = pThrd->pTransInst;
   tTrace("%s conn %p start to register brokenlink callback", transLabel(pTransInst), exh->handle);
-  transAsyncSend(pThrd->asyncPool, &m->q);
+  if (0 != transAsyncSend(pThrd->asyncPool, &m->q)) {
+    destroySmsg(m);
+  }
 
   transReleaseExHandle(transGetRefMgt(), refId);
   return 0;
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 713d3f4271..985f7cafbf 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -56,7 +56,7 @@
 ,,y,script,./test.sh -f tsim/dnode/redistribute_vgroup_replica3_v2.sim
 ,,y,script,./test.sh -f tsim/dnode/redistribute_vgroup_replica3_v3.sim
 ,,y,script,./test.sh -f tsim/dnode/vnode_clean.sim
-,,,script,./test.sh -f tsim/dnode/use_dropped_dnode.sim 
+,,y,script,./test.sh -f tsim/dnode/use_dropped_dnode.sim 
 ,,y,script,./test.sh -f tsim/dnode/split_vgroup_replica1.sim 
 ,,y,script,./test.sh -f tsim/dnode/split_vgroup_replica3.sim 
 ,,y,script,./test.sh -f tsim/import/basic.sim
@@ -176,11 +176,11 @@
 ,,y,script,./test.sh -f tsim/query/udf.sim
 ,,y,script,./test.sh -f tsim/qnode/basic1.sim
 ,,y,script,./test.sh -f tsim/snode/basic1.sim
-,,,script,./test.sh -f tsim/mnode/basic1.sim
-,,,script,./test.sh -f tsim/mnode/basic2.sim
-,,,script,./test.sh -f tsim/mnode/basic3.sim
-,,,script,./test.sh -f tsim/mnode/basic4.sim
-,,,script,./test.sh -f tsim/mnode/basic5.sim
+,,y,script,./test.sh -f tsim/mnode/basic1.sim
+,,y,script,./test.sh -f tsim/mnode/basic2.sim
+,,y,script,./test.sh -f tsim/mnode/basic3.sim
+,,y,script,./test.sh -f tsim/mnode/basic4.sim
+,,y,script,./test.sh -f tsim/mnode/basic5.sim
 ,,y,script,./test.sh -f tsim/show/basic.sim
 ,,y,script,./test.sh -f tsim/table/autocreate.sim
 ,,y,script,./test.sh -f tsim/table/basic1.sim
@@ -291,7 +291,7 @@
 ,,n,script,./test.sh -f tsim/valgrind/checkError7.sim
 ,,n,script,./test.sh -f tsim/valgrind/checkError8.sim
 ,,n,script,./test.sh -f tsim/valgrind/checkUdf.sim
-,,,script,./test.sh -f tsim/vnode/replica3_basic.sim
+,,y,script,./test.sh -f tsim/vnode/replica3_basic.sim
 ,,y,script,./test.sh -f tsim/vnode/replica3_repeat.sim
 ,,y,script,./test.sh -f tsim/vnode/replica3_vgroup.sim
 ,,y,script,./test.sh -f tsim/vnode/replica3_many.sim
diff --git a/tests/script/tsim/db/alter_replica_13.sim b/tests/script/tsim/db/alter_replica_13.sim
index 007bb00f07..b3231cc24b 100644
--- a/tests/script/tsim/db/alter_replica_13.sim
+++ b/tests/script/tsim/db/alter_replica_13.sim
@@ -138,10 +138,10 @@ while $i < 10
   if $data[0][4] != leader then
     return -1
   endi
-  if $data[0][6] != follower then
+  if $data[0][6] == leader then
     return -1
   endi
-  if $data[0][8] != follower then
+  if $data[0][8] == leader then
     return -1
   endi
 endw