diff --git a/src/mnode/src/mgmtDnode.c b/src/mnode/src/mgmtDnode.c
index 463f5dde478c8e126a579d8db6540c24deca5786..c3ae8b5ab1cbb16233a4a89173ada241710c9108 100644
--- a/src/mnode/src/mgmtDnode.c
+++ b/src/mnode/src/mgmtDnode.c
@@ -74,6 +74,7 @@ static int32_t mgmtDnodeActionDelete(SSdbOper *pOper) {
   SDnodeObj *pDnode = pOper->pObj;
  
 #ifndef _SYNC 
+  //TODO: drop dnode local
   mgmtDropAllDnodeVgroups(pDnode);
 #endif  
   mgmtDropMnodeLocal(pDnode->dnodeId);
diff --git a/src/mnode/src/mgmtTable.c b/src/mnode/src/mgmtTable.c
index bd4f022bc17c16c6a3d01efe632f6f4195805814..3e3b16fa9da9984c0894df3a6087161b8b440497 100644
--- a/src/mnode/src/mgmtTable.c
+++ b/src/mnode/src/mgmtTable.c
@@ -546,6 +546,7 @@ static void *mgmtGetSuperTableByUid(uint64_t uid) {
     pIter = mgmtGetNextSuperTable(pIter, &pStable);
     if (pStable == NULL) break;
     if (pStable->uid == uid) {
+      sdbFreeIter(pIter);
       return pStable;
     }
     mgmtDecTableRef(pStable);
@@ -1459,15 +1460,15 @@ static void mgmtProcessCreateChildTableMsg(SQueuedMsg *pMsg) {
     return;
   }
 
-  int32_t sid = taosAllocateId(pVgroup->idPool);
-  if (sid <= 0) {
-    mTrace("tables:%s, no enough sid in vgId:%d", pCreate->tableId, pVgroup->vgId);
-    mgmtCreateVgroup(mgmtCloneQueuedMsg(pMsg), pMsg->pDb);
-    return;
-  }
-
   if (pMsg->retry == 0) {
     if (pMsg->pTable == NULL) {
+      int32_t sid = taosAllocateId(pVgroup->idPool);
+      if (sid <= 0) {
+        mTrace("tables:%s, no enough sid in vgId:%d", pCreate->tableId, pVgroup->vgId);
+        mgmtCreateVgroup(mgmtCloneQueuedMsg(pMsg), pMsg->pDb);
+        return;
+      }
+
       pMsg->pTable = (STableObj *)mgmtDoCreateChildTable(pCreate, pVgroup, sid);
       mgmtIncTableRef(pMsg->pTable);
     }
diff --git a/src/mnode/src/mgmtVgroup.c b/src/mnode/src/mgmtVgroup.c
index f8447a31fd06faf6d8dcb76286fc611c72f80b4c..1416ed5f58d41ec2485af9145606900fe5506ddb 100644
--- a/src/mnode/src/mgmtVgroup.c
+++ b/src/mnode/src/mgmtVgroup.c
@@ -666,7 +666,6 @@ static SMDDropVnodeMsg *mgmtBuildDropVnodeMsg(int32_t vgId) {
 }
 
 void mgmtSendDropVnodeMsg(int32_t vgId, SRpcIpSet *ipSet, void *ahandle) {
-  mTrace("vgId:%d, send drop vnode msg, ahandle:%p", vgId, ahandle);
   SMDDropVnodeMsg *pDrop = mgmtBuildDropVnodeMsg(vgId);
   SRpcMsg rpcMsg = {
       .handle  = ahandle,
@@ -682,6 +681,7 @@ static void mgmtSendDropVgroupMsg(SVgObj *pVgroup, void *ahandle) {
   mTrace("vgId:%d, send drop all vnodes msg, ahandle:%p", pVgroup->vgId, ahandle);
   for (int32_t i = 0; i < pVgroup->numOfVnodes; ++i) {
     SRpcIpSet ipSet = mgmtGetIpSetFromIp(pVgroup->vnodeGid[i].pDnode->dnodeEp);
+    mTrace("vgId:%d, send drop vnode msg to dnode:%d, ahandle:%p", pVgroup->vgId, pVgroup->vnodeGid[i].dnodeId, ahandle);
     mgmtSendDropVnodeMsg(pVgroup->vgId, &ipSet, ahandle);
   }
 }
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index 091103a911d7195d28761bf4ff053b9ac1f33725..3b27344f2098baa322c927283798ed1dfab0a740 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -352,7 +352,6 @@ static void vnodeBuildVloadMsg(SVnodeObj *pVnode, SDMStatusMsg *pStatus) {
   pLoad->status = pVnode->status;
   pLoad->role = pVnode->role;
   pLoad->replica = pVnode->syncCfg.replica;
-  pStatus->openVnodes++;
 }
 
 void vnodeBuildStatusMsg(void *param) {
diff --git a/tests/script/general/db/delete.sim b/tests/script/general/db/delete.sim
new file mode 100644
index 0000000000000000000000000000000000000000..f86774c2cf924d0e9c16a4031c944c64fc8e5343
--- /dev/null
+++ b/tests/script/general/db/delete.sim
@@ -0,0 +1,59 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c wallevel -v 2
+system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 10
+
+print ========= start dnodes
+system sh/exec.sh -n dnode1 -s start
+sleep 3000
+sql connect
+
+print ======== step1 
+sql create database db blocks 2 maxtables 1000
+sql create table db.mt (ts timestamp, tbcol int) TAGS(tgcol int)
+
+$tbPrefix = db.t
+$i = 0
+while $i < 2000
+  $tb = $tbPrefix . $i
+  sql create table $tb using db.mt tags( $i )
+  $i = $i + 1
+endw 
+
+print ======== step2
+sleep 1000
+sql drop database db
+sql show databases
+if $rows != 0 then 
+  return -1
+endi 
+
+sleep 1000
+sql show dnodes
+print dnode1 openVnodes $data2_1
+if $data2_1 != 0 then
+	return -1
+endi
+
+print ======= step3
+system sh/exec.sh -n dnode1 -s stop  -x SIGINT
+sleep 1000
+system sh/exec.sh -n dnode1 -s start 
+
+$x = 0
+step3: 
+	$x = $x + 1
+	sleep 2000
+	if $x == 30 then
+	  return -1
+	endi
+
+sql show mnodes
+print dnode1 role $data2_1
+if $data2_1 != master then
+  goto step3
+endi
+
+sleep 1000
+
+system sh/exec.sh -n dnode1 -s stop  -x SIGINT
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index c9cb6960168be34d8e573729c7f219f000d2507b..94c9c71edc8115b08e4f169e5c523acf255f028c 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -49,6 +49,7 @@ cd ../../../debug; make
 ./test.sh -f general/db/basic3.sim
 ./test.sh -f general/db/basic4.sim
 ./test.sh -f general/db/basic5.sim
+./test.sh -f unique/db/delete.sim
 ./test.sh -f general/db/delete_reuse1.sim
 ./test.sh -f general/db/delete_reuse2.sim
 ./test.sh -f general/db/delete_reusevnode.sim
@@ -243,15 +244,15 @@ cd ../../../debug; make
 #slguan ./test.sh -u -f unique/big/maxvnodes.sim
 ./test.sh -u -f unique/big/tcp.sim
 
-##./test.sh -u -f unique/cluster/balance1.sim
-##./test.sh -u -f unique/cluster/balance2.sim
-##./test.sh -u -f unique/cluster/balance3.sim
+#jeff ./test.sh -u -f unique/cluster/balance1.sim
+#jeff ./test.sh -u -f unique/cluster/balance2.sim
+#jeff ./test.sh -u -f unique/cluster/balance3.sim
 #./test.sh -u -f unique/cluster/cache.sim
 
 ./test.sh -u -f unique/column/replica3.sim
 
-#./test.sh -u -f unique/db/commit.sim
-#./test.sh -u -f unique/db/delete.sim
+#hongze ./test.sh -u -f unique/db/commit.sim
+./test.sh -u -f unique/db/delete.sim
 #./test.sh -u -f unique/db/delete_part.sim
 ##./test.sh -u -f unique/db/replica_add12.sim
 ##./test.sh -u -f unique/db/replica_add13.sim
@@ -269,7 +270,7 @@ cd ../../../debug; make
 ##./test.sh -u -f unique/dnode/offline2.sim
 ./test.sh -u -f unique/dnode/remove1.sim
 #hongze ./test.sh -u -f unique/dnode/remove2.sim
-#./test.sh -u -f unique/dnode/vnode_clean.sim
+./test.sh -u -f unique/dnode/vnode_clean.sim
 
 ./test.sh -u -f unique/http/admin.sim
 ./test.sh -u -f unique/http/opentsdb.sim
@@ -302,6 +303,6 @@ cd ../../../debug; make
 #./test.sh -u -f unique/vnode/replica2_basic.sim
 ./test.sh -u -f unique/vnode/replica2_basic2.sim
 #./test.sh -u -f unique/vnode/replica2_repeat.sim
-##./test.sh -u -f unique/vnode/replica3_basic.sim
+#hongze ./test.sh -u -f unique/vnode/replica3_basic.sim
 #./test.sh -u -f unique/vnode/replica3_repeat.sim
 #./test.sh -u -f unique/vnode/replica3_vgroup.sim
diff --git a/tests/script/unique/db/commit.sim b/tests/script/unique/db/commit.sim
index 648cd8db2fe592b2405017d9d850c76ffeefb117..5bf6ea6f10bf7e52581785459aa03de321f91c1c 100644
--- a/tests/script/unique/db/commit.sim
+++ b/tests/script/unique/db/commit.sim
@@ -72,8 +72,8 @@ sql import into tb values (now - 10d , -10 )
 sql import into tb values (now - 11d , -11 )
 
 sql select * from tb order by ts desc
-print ===> rows $rows
-print ===> last $data01
+print ===> rows $rows expect $num
+print ===> last $data01 expect  $data01
 
 if $rows != $num then
 	return -1
diff --git a/tests/script/unique/db/delete.sim b/tests/script/unique/db/delete.sim
index e222db8d70fff0dfb17d2731a346557b5ddb0b8e..dcdd1ae9e9ae98880579e3cca505c244ecfa4e35 100644
--- a/tests/script/unique/db/delete.sim
+++ b/tests/script/unique/db/delete.sim
@@ -1,7 +1,4 @@
 system sh/stop_dnodes.sh
-
-
-
 system sh/deploy.sh -n dnode1 -i 1
 system sh/deploy.sh -n dnode2 -i 2
 system sh/deploy.sh -n dnode3 -i 3
@@ -18,20 +15,20 @@ system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 10
 
 print ========= start dnodes
 system sh/exec_up.sh -n dnode1 -s start
+sleep 3000
 sql connect
 sql create dnode $hostname2
 system sh/exec_up.sh -n dnode2 -s start
 sql create dnode $hostname3
 system sh/exec_up.sh -n dnode3 -s start
-sleep 3000
 
 print ======== step1 
-sql create database db replica 3 ablocks 2 tblocks 5 maxtables 10000
+sql create database db replica 3 blocks 2 maxtables 1000
 sql create table db.mt (ts timestamp, tbcol int) TAGS(tgcol int)
 
 $tbPrefix = db.t
 $i = 0
-while $i < 100000
+while $i < 2000
   $tb = $tbPrefix . $i
   sql create table $tb using db.mt tags( $i )
   $i = $i + 1
@@ -45,6 +42,48 @@ if $rows != 0 then
   return -1
 endi 
 
+sleep 3000
+sql show dnodes
+print dnode1 openVnodes $data2_1
+print dnode2 openVnodes $data2_2
+print dnode3 openVnodes $data2_3
+if $data2_1 != 0 then
+	return -1
+endi
+if $data2_2 != 0 then
+	return -1
+endi
+if $data2_3 != 0 then
+	return -1
+endi
+
+print ======== step3
+
+system sh/exec.sh -n dnode1 -s stop  -x SIGINT
+system sh/exec.sh -n dnode2 -s stop  -x SIGINT
+system sh/exec.sh -n dnode3 -s stop  -x SIGINT
+
+sleep 1000
+system sh/exec.sh -n dnode1 -s start -t
+system sh/exec.sh -n dnode2 -s start -t
+system sh/exec.sh -n dnode3 -s start -t
+
+$x = 0
+step3: 
+	$x = $x + 1
+	sleep 2000
+	if $x == 10 then
+	  return -1
+	endi
+
+sql show mnodes
+print dnode1 role $data2_1
+if $data2_1 != master then
+  goto step3
+endi
+
+sleep 1000
+
 system sh/exec_up.sh -n dnode1 -s stop  -x SIGINT
 system sh/exec_up.sh -n dnode2 -s stop  -x SIGINT
 system sh/exec_up.sh -n dnode3 -s stop  -x SIGINT
diff --git a/tests/script/unique/dnode/vnode_clean.sim b/tests/script/unique/dnode/vnode_clean.sim
index da34c7bc9b3b26f0a6bad497ae02ea253b97bb7a..d46e1a751ed788249f158e519ef901cdf46b886c 100644
--- a/tests/script/unique/dnode/vnode_clean.sim
+++ b/tests/script/unique/dnode/vnode_clean.sim
@@ -29,7 +29,7 @@ sql insert into d1.t1 values(now+5s, 11)
 
 sql show dnodes
 print dnode1 openVnodes $data2_1
-if $data2_1 != 3 then
+if $data2_1 != 1 then
 	return -1
 endi
 
@@ -41,16 +41,16 @@ $x = 0
 show2: 
 	$x = $x + 1
 	sleep 2000
-	if $x == 30 then
+	if $x == 10 then
 	  return -1
 	endi
 sql show dnodes
 print dnode1 openVnodes $data2_1
 print dnode2 openVnodes $data2_2
-if $data2_1 != 4 then
+if $data2_1 != 0 then
 	goto show2
 endi
-if $data2_2 != 3 then
+if $data2_2 != 1 then
 	goto show2
 endi
 
@@ -68,7 +68,7 @@ $x = 0
 sql show dnodes
 print dnode1 openVnodes $data2_1
 print dnode2 openVnodes $data2_2
-if $data2_1 != 4 then
+if $data2_1 != 0 then
 	return -1
 endi
 if $data2_2 != 2 then
@@ -82,7 +82,7 @@ $x = 0
 show4: 
 	$x = $x + 1
 	sleep 2000
-	if $x == 30 then
+	if $x == 10 then
 	  return -1
 	endi
 sql show dnodes
@@ -91,7 +91,7 @@ print dnode2 openVnodes $data2_2
 if $data2_1 != 2 then
     goto show4
 endi
-if $data2_2 != NULL then
+if $data2_2 != null then
     goto show4
 endi
 if $rows != 1 then
@@ -102,13 +102,8 @@ system sh/exec_up.sh -n dnode2 -s stop -x SIGINT
 
 print ========== step5
 sleep 2000
-sql create dnode $hostname2
-system sh/deploy.sh -n dnode2 -i 2
-system sh/cfg.sh -n dnode2 -c numOfMPeers -v 1
-system sh/cfg.sh -n dnode2 -c balanceInterval -v 10
-system sh/cfg.sh -n dnode2 -c mgmtEqualVnodeNum -v 4
-system sh/cfg.sh -n dnode2 -c wallevel -v 1
-system sh/exec_up.sh -n dnode2 -s start
+sql create dnode $hostname3
+system sh/exec_up.sh -n dnode3 -s start
 
 $x = 0
 show5: 
@@ -119,11 +114,11 @@ show5:
 	endi
 sql show dnodes
 print dnode1 openVnodes $data2_1
-print dnode2 openVnodes $data2_2
-if $data2_1 != 4 then
+print dnode3 openVnodes $data2_3
+if $data2_1 != 0 then
     goto show5
 endi
-if $data2_2 != 2 then
+if $data2_3 != 2 then
     goto show5
 endi
 
@@ -138,17 +133,17 @@ sql insert into d3.t3 values(now+5s, 31)
 
 sql show dnodes
 print dnode1 openVnodes $data2_1
-print dnode2 openVnodes $data2_2
-if $data2_1 != 4 then
+print dnode2 openVnodes $data2_3
+if $data2_1 != 0 then
 	return -1
 endi
-if $data2_2 != 1 then
+if $data2_3 != 3 then
 	return -1
 endi
 
 print ========== step7
-sql create dnode $hostname3
-system sh/exec_up.sh -n dnode3 -s start
+sql create dnode $hostname4
+system sh/exec_up.sh -n dnode4 -s start
 
 $x = 0
 show7: 
@@ -160,15 +155,15 @@ show7:
 	
 sql show dnodes
 print dnode1 openVnodes $data2_1
-print dnode2 openVnodes $data2_2
 print dnode3 openVnodes $data2_3
-if $data2_1 != 4 then
+print dnode4 openVnodes $data2_4
+if $data2_1 != 0 then
   goto show7
 endi
-if $data2_2 != 2 then
+if $data2_3 != 2 then
   goto show7
 endi
-if $data2_3 != 3 then
+if $data2_4 != 1 then
   goto show7
 endi
 
@@ -185,49 +180,49 @@ $x = 0
 show8: 
 	$x = $x + 1
 	sleep 2000
-	if $x == 30 then
+	if $x == 10 then
 	  return -1
 	endi
 sql show dnodes
 print dnode1 openVnodes $data2_1
-print dnode2 openVnodes $data2_2
 print dnode3 openVnodes $data2_3
-if $data2_1 != 4 then
+print dnode4 openVnodes $data2_4
+if $data2_1 != 0 then
   goto show8
 endi
-if $data2_2 != 2 then
+if $data2_3 != 2 then
   goto show8
 endi
-if $data2_3 != 2 then
+if $data2_4 != 2 then
   goto show8
 endi
 
 print ========== step9
-sql drop dnode $hostname2
+sql drop dnode $hostname3
 
 $x = 0
 show9: 
 	$x = $x + 1
 	sleep 2000
-	if $x == 30 then
+	if $x == 10 then
 	  return -1
 	endi
 
 sql show dnodes
 print dnode1 openVnodes $data2_1
-print dnode2 openVnodes $data2_2
 print dnode3 openVnodes $data2_3
-if $data2_1 != 4 then
+print dnode4 openVnodes $data2_4
+if $data2_1 != 0 then
   goto show9
 endi
-if $data2_2 != NULL then
+if $data2_3 != null then
   goto show9
 endi
-if $data2_3 != 0 then
+if $data2_4 != 4 then
   goto show9
 endi
 
-system sh/exec_up.sh -n dnode2 -s stop -x SIGINT
+system sh/exec_up.sh -n dnode3 -s stop -x SIGINT
 
 print ========== step10
 sql select * from d1.t1  order by t desc