diff --git a/.travis.yml b/.travis.yml
index 2e268ae04a1a7d34869fb1c5e66b118d43973948..54a7856f7b295f6337c4372b52c307720958a670 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,7 +49,7 @@ matrix:
           pip3 install --user ${TRAVIS_BUILD_DIR}/src/connector/python/linux/python3/
 
           cd ${TRAVIS_BUILD_DIR}/tests
-          ./test-all.sh $TRAVIS_EVENT_TYPE || travis_terminate $?
+          ./test-all.sh smoke || travis_terminate $?
 
           cd ${TRAVIS_BUILD_DIR}/tests/pytest
           ./valgrind-test.sh 2>&1 > mem-error-out.log
@@ -169,7 +169,7 @@ matrix:
 
           cd ${TRAVIS_BUILD_DIR}/tests
 
-          ./test-all.sh $TRAVIS_EVENT_TYPE COVER
+          ./test-all.sh smoke COVER
 
           TEST_RESULT=$?
 
@@ -178,7 +178,7 @@ matrix:
 
           cd ${TRAVIS_BUILD_DIR}
           lcov -d . --capture --rc lcov_branch_coverage=1 -o coverage.info
-          lcov --remove coverage.info '*/tests/*' '*/test/*' '*/deps/*' -o coverage.info
+          lcov --remove coverage.info '*/tests/*' '*/test/*' '*/deps/*' '*/plugins/*' -o coverage.info
           lcov -l --rc lcov_branch_coverage=1 coverage.info || travis_terminate $?
 
           gem install coveralls-lcov
diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index e260e7ec81ddee56cfb624f719f3551028c211ed..d442b125861419ca56697e341e6d5b398846af14 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -414,15 +414,35 @@ static void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
   
   dnodeProcessModuleStatus(pCfg->moduleStatus);
   dnodeUpdateDnodeCfg(pCfg);
+
   dnodeUpdateMnodeInfos(pMnodes);
   taosTmrReset(dnodeSendStatusMsg, tsStatusInterval * 1000, NULL, tsDnodeTmr, &tsStatusTimer);
 }
 
+static bool dnodeCheckMnodeInfos(SDMMnodeInfos *pMnodes) {
+  if (pMnodes->nodeNum <= 0 || pMnodes->nodeNum > 3) {
+    dError("invalid mnode infos, num:%d", pMnodes->nodeNum);
+    return false;
+  }
+
+  for (int32_t i = 0; i < pMnodes->nodeNum; ++i) {
+    SDMMnodeInfo *pMnodeInfo = &pMnodes->nodeInfos[i];
+    if (pMnodeInfo->nodeId <= 0 || strlen(pMnodeInfo->nodeEp) <= 5) {
+      dError("invalid mnode info:%d, nodeId:%d nodeEp:%s", pMnodeInfo->nodeId, pMnodeInfo->nodeEp);
+      return false;
+    }
+  }
+
+  return true;
+}
+
 static void dnodeUpdateMnodeInfos(SDMMnodeInfos *pMnodes) {
   bool mnodesChanged = (memcmp(&tsDMnodeInfos, pMnodes, sizeof(SDMMnodeInfos)) != 0);
   bool mnodesNotInit = (tsDMnodeInfos.nodeNum == 0);
   if (!(mnodesChanged || mnodesNotInit)) return;
 
+  if (!dnodeCheckMnodeInfos(pMnodes)) return;
+
   memcpy(&tsDMnodeInfos, pMnodes, sizeof(SDMMnodeInfos));
   dPrint("mnode infos is changed, nodeNum:%d inUse:%d", tsDMnodeInfos.nodeNum, tsDMnodeInfos.inUse);
   for (int32_t i = 0; i < tsDMnodeInfos.nodeNum; i++) {
diff --git a/src/mnode/src/mnodeShow.c b/src/mnode/src/mnodeShow.c
index deb297610dc17566ff9cb27c8b75e2c72ac69890..0ff4da42c557d999842783b084e0c8d5642f1713 100644
--- a/src/mnode/src/mnodeShow.c
+++ b/src/mnode/src/mnodeShow.c
@@ -138,15 +138,16 @@ static int32_t mnodeProcessShowMsg(SMnodeMsg *pMsg) {
   }
   pShowRsp->qhandle = htobe64((uint64_t) pShow);
 
-  mTrace("%p, show type:%s, start to get meta", pShow, mnodeGetShowType(pShowMsg->type));
   int32_t code = (*tsMnodeShowMetaFp[pShowMsg->type])(&pShowRsp->tableMeta, pShow, pMsg->rpcMsg.handle);
-  if (code == 0) {
+  mTrace("%p, show type:%s index:%d, get meta finished, rows:%d cols:%d result:%s", pShow,
+         mnodeGetShowType(pShowMsg->type), pShow->index, pShow->numOfRows, pShow->numOfColumns, tstrerror(code));
+
+  if (code == TSDB_CODE_SUCCESS) {
     pMsg->rpcRsp.rsp = pShowRsp;
     pMsg->rpcRsp.len = sizeof(SCMShowRsp) + sizeof(SSchema) * pShow->numOfColumns;
     mnodeReleaseShowObj(pShow, false);
     return TSDB_CODE_SUCCESS;
   } else {
-    mError("%p, show type:%s, failed to get meta, reason:%s", pShow, mnodeGetShowType(pShowMsg->type), tstrerror(code));
     rpcFreeCont(pShowRsp);
     mnodeReleaseShowObj(pShow, true);
     return code;
@@ -161,8 +162,7 @@ static int32_t mnodeProcessRetrieveMsg(SMnodeMsg *pMsg) {
   pRetrieve->qhandle = htobe64(pRetrieve->qhandle);
 
   SShowObj *pShow = (SShowObj *)pRetrieve->qhandle;
-  mTrace("%p, show type:%s, retrieve data", pShow, mnodeGetShowType(pShow->type));
-
+  
   /*
    * in case of server restart, apps may hold qhandle created by server before
    * restart, which is actually invalid, therefore, signature check is required.
@@ -171,7 +171,10 @@ static int32_t mnodeProcessRetrieveMsg(SMnodeMsg *pMsg) {
     mError("%p, show is invalid", pShow);
     return TSDB_CODE_MND_INVALID_SHOWOBJ;
   }
-  
+
+  mTrace("%p, show type:%s index:%d, start retrieve data, numOfReads:%d numOfRows:%d", pShow,
+         mnodeGetShowType(pShow->type), pShow->index, pShow->numOfReads, pShow->numOfRows);
+
   if (mnodeCheckShowFinished(pShow)) {
     mTrace("%p, show is already read finished, numOfReads:%d numOfRows:%d", pShow, pShow->numOfReads, pShow->numOfRows);
     pShow->numOfReads = pShow->numOfRows;
@@ -198,6 +201,9 @@ static int32_t mnodeProcessRetrieveMsg(SMnodeMsg *pMsg) {
   if ((pRetrieve->free & TSDB_QUERY_TYPE_FREE_RESOURCE) != TSDB_QUERY_TYPE_FREE_RESOURCE)
     rowsRead = (*tsMnodeShowRetrieveFp[pShow->type])(pShow, pRsp->data, rowsToRead, pMsg->rpcMsg.handle);
 
+  mTrace("%p, show type:%s index:%d, stop retrieve data, rowsRead:%d rowsToRead:%d", pShow,
+         mnodeGetShowType(pShow->type), pShow->index, rowsRead, rowsToRead);
+
   if (rowsRead < 0) {
     rpcFreeCont(pRsp);
     mnodeReleaseShowObj(pShow, false);
@@ -211,7 +217,7 @@ static int32_t mnodeProcessRetrieveMsg(SMnodeMsg *pMsg) {
   pMsg->rpcRsp.rsp = pRsp;
   pMsg->rpcRsp.len = size;
 
-  if (rowsToRead == 0 || (rowsRead == rowsToRead && pShow->numOfRows - pShow->numOfReads == rowsToRead)) {
+  if (rowsToRead == 0 || (rowsRead == rowsToRead && pShow->numOfRows == pShow->numOfReads)) {
     pRsp->completed = 1;
     mnodeReleaseShowObj(pShow, true);
   } else {
diff --git a/src/plugins/http/src/httpSql.c b/src/plugins/http/src/httpSql.c
index 6ff93b3e8a728d72d33e717991d9a1917e5e3c55..efd1aac76797a21ddaa632f2a6344678b0f76c7f 100644
--- a/src/plugins/http/src/httpSql.c
+++ b/src/plugins/http/src/httpSql.c
@@ -87,7 +87,7 @@ void httpProcessMultiSqlCallBack(void *param, TAOS_RES *result, int code) {
   }
 
   if (code < 0) {
-    if (encode->checkFinishedFp != NULL && !encode->checkFinishedFp(pContext, singleCmd, -code)) {
+    if (encode->checkFinishedFp != NULL && !encode->checkFinishedFp(pContext, singleCmd, code)) {
       singleCmd->code = code;
       httpTrace("context:%p, fd:%d, ip:%s, user:%s, process pos jump to:%d, last code:%s, last sql:%s",
                 pContext, pContext->fd, pContext->ipstr, pContext->user, multiCmds->pos + 1, tstrerror(code), sql);
diff --git a/tests/script/unique/http/opentsdb.sim b/tests/script/unique/http/opentsdb.sim
index 19d1c48c3d1ec309c5afd0fb786c3f34696f59c7..61ce5127b4491a6c87e09a1df35ddf15fbe1f10d 100644
--- a/tests/script/unique/http/opentsdb.sim
+++ b/tests/script/unique/http/opentsdb.sim
@@ -75,7 +75,7 @@ endi
 
 system_content curl -u root:taosdata -d  '[{"metric": "ab1234567890123456789012345678ab1234567890123456789012345678","timestamp": 1346846400,"value": 18,"tags": {"host": "web01","group1": "1","dc": "lga"}}]' 127.0.0.1:6020/opentsdb/db/put
 print $system_content
-if $system_content != @{"errors":[{"datapoint":{"metric":"ab1234567890123456789012345678ab1234567890123456789012345678","stable":"ab1234567890123456789012345678ab1234567890123456789012345678_d_bbb","table":"ab1234567890123456789012345678ab1234567890123456789012345678_d_bbb_lga_1_web01","timestamp":1346846400,"value":18.000000,"tags":{"dc":"lga","group1":"1","host":"web01"},"status":"error","code":-2147482999}}],"failed":1,"success":0,"affected_rows":0}@ then
+if $system_content != @{"errors":[{"datapoint":{"metric":"ab1234567890123456789012345678ab1234567890123456789012345678","stable":"ab1234567890123456789012345678ab1234567890123456789012345678_d_bbb","table":"ab1234567890123456789012345678ab1234567890123456789012345678_d_bbb_lga_1_web01","timestamp":1346846400,"value":18.000000,"tags":{"dc":"lga","group1":"1","host":"web01"},"status":"error","code":-2147482101}}],"failed":1,"success":0,"affected_rows":0}@ then
   return -1
 endi