diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index 1d06995380..f73294c398 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 41affde
+        GIT_TAG ea02029
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/include/common/tcommon.h b/include/common/tcommon.h
index 2a40976a8b..9e928a79ac 100644
--- a/include/common/tcommon.h
+++ b/include/common/tcommon.h
@@ -25,13 +25,6 @@
 extern "C" {
 #endif
 
-// TODO remove it
-enum {
-  TMQ_CONF__RESET_OFFSET__NONE = -3,
-  TMQ_CONF__RESET_OFFSET__EARLIEAST = -2,
-  TMQ_CONF__RESET_OFFSET__LATEST = -1,
-};
-
 // clang-format off
 #define IS_META_MSG(x) ( \
      x == TDMT_VND_CREATE_STB     \
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index f7c9c77e78..ce441502cb 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -3186,6 +3186,7 @@ typedef struct {
   SArray*      blockData;
   SArray*      blockTbName;
   SArray*      blockSchema;
+  // the following attributes are extended from SMqDataRsp
   int32_t      createTableNum;
   SArray*      createTableLen;
   SArray*      createTableReq;
diff --git a/packaging/cfg/taos.cfg b/packaging/cfg/taos.cfg
index 3d3dfc8e73..a98dc5a236 100644
--- a/packaging/cfg/taos.cfg
+++ b/packaging/cfg/taos.cfg
@@ -1,19 +1,19 @@
 ########################################################
 #                                                      #
-#                  TDengine Configuration              #
+#                  Configuration                       #
 #   Any questions, please email support@taosdata.com   #
 #                                                      #
 ########################################################
 
 ######### 0. Client only configurations #############
 
-# The interval for TDengine CLI to send heartbeat to mnode
+# The interval for CLI to send heartbeat to mnode
 # shellActivityTimer        3
 
 
 ############### 1. Cluster End point ############################
 
-# The end point of the first dnode in the cluster to be connected to when this dnode or a TDengine CLI `taos` is started
+# The end point of the first dnode in the cluster to be connected to when this dnode or a CLI `taos` is started
 # firstEp                   hostname:6030
 
 # The end point of the second dnode to be connected to if the firstEp is not available
@@ -40,10 +40,10 @@
 # temporary file's directory, if you are using Windows platform please change to Windows path
 # tempDir                   /tmp/
 
-# Switch for allowing TDengine to collect and report service usage information
+# Switch for allowing to collect and report service usage information
 # telemetryReporting        1
 
-# Switch for allowing TDengine to collect and report crash information
+# Switch for allowing to collect and report crash information
 # crashReporting            1
 
 # The maximum number of vnodes supported by this dnode
diff --git a/packaging/debRpmAutoInstall.sh b/packaging/debRpmAutoInstall.sh
index 3579f813e5..2fe18fd7a9 100755
--- a/packaging/debRpmAutoInstall.sh
+++ b/packaging/debRpmAutoInstall.sh
@@ -1,15 +1,15 @@
 #!/usr/bin/expect 
-set packgeName [lindex $argv 0]
+set packageName [lindex $argv 0]
 set packageSuffix [lindex $argv 1]
 set timeout 3 
 if { ${packageSuffix} == "deb" } {
-    spawn  dpkg -i ${packgeName}
+    spawn  dpkg -i ${packageName}
 } elseif { ${packageSuffix} == "rpm"} {
-    spawn rpm -ivh ${packgeName}
+    spawn rpm -ivh ${packageName}
 }
 expect "*one:"
 send  "\r"
 expect "*skip:"
 send  "\r" 
 
-expect eof
\ No newline at end of file
+expect eof
diff --git a/packaging/testpackage.sh b/packaging/testpackage.sh
index 78d5043b0c..9959d290e7 100755
--- a/packaging/testpackage.sh
+++ b/packaging/testpackage.sh
@@ -25,7 +25,7 @@ sourcePath="nas"
 cpuType="x64"
 lite="true"
 packageType="tar"
-subFile="taos.tar.gz"
+subFile="package.tar.gz"
 while getopts "m:c:f:l:s:o:t:v:h" opt; do
     case $opt in
         m)
@@ -79,9 +79,9 @@ GREEN_UNDERLINE='\033[4;32m'
 NC='\033[0m'
 
 if [[ ${verMode} = "enterprise" ]];then
-    prePackag="TDengine-enterprise-${testFile}"
+    prePackage="TDengine-enterprise-${testFile}"
 elif [ ${verMode} = "community" ];then
-    prePackag="TDengine-${testFile}"
+    prePackage="TDengine-${testFile}"
 fi
 if [ ${lite} = "true" ];then
     packageLite="-Lite"
@@ -92,10 +92,10 @@ if [[ "$packageType" = "tar" ]] ;then
     packageType="tar.gz"
 fi
 
-tdPath="${prePackag}-${version}"
-originTdpPath="${prePackag}-${originversion}"
+tdPath="${prePackage}-${version}"
+originTdpPath="${prePackage}-${originversion}"
 
-packgeName="${tdPath}-Linux-${cpuType}${packageLite}.${packageType}"
+packageName="${tdPath}-Linux-${cpuType}${packageLite}.${packageType}"
 originPackageName="${originTdpPath}-Linux-${cpuType}${packageLite}.${packageType}"
 
 if [ "$testFile" == "server" ] ;then
@@ -105,13 +105,13 @@ elif [ ${testFile} = "client" ];then
 elif [ ${testFile} = "tools" ];then
     tdPath="taosTools-${version}"
     originTdpPath="taosTools-${originversion}"
-    packgeName="${tdPath}-Linux-${cpuType}${packageLite}.${packageType}"
+    packageName="${tdPath}-Linux-${cpuType}${packageLite}.${packageType}"
     originPackageName="${originTdpPath}-Linux-${cpuType}${packageLite}.${packageType}"    
-    installCmd="install-taostools.sh"
+    installCmd="install-tools.sh"
 fi
 
 
-echo "tdPath:${tdPath},originTdpPath:${originTdpPath},packgeName:${packgeName},originPackageName:${originPackageName}"
+echo "tdPath:${tdPath},originTdpPath:${originTdpPath},packageName:${packageName},originPackageName:${originPackageName}"
 function cmdInstall {
 command=$1
 if command -v ${command} ;then
@@ -206,7 +206,7 @@ else
 fi
 
 
-if [[ ${packgeName} =~ "server" ]] ;then
+if [[ ${packageName} =~ "server" ]] ;then
     echoColor BD " pkill -9 taosd "
     pkill -9 taosd
 fi
@@ -232,25 +232,25 @@ if [ -d ${installPath}/${tdPath} ] ;then
 fi
 
 echoColor G "===== download  installPackage ====="
-cd ${installPath} && wgetFile ${packgeName} ${version}  ${sourcePath}
+cd ${installPath} && wgetFile ${packageName} ${version}  ${sourcePath}
 cd  ${oriInstallPath}  && wgetFile ${originPackageName} ${originversion}   ${sourcePath}
 
 
 cd ${installPath}
 cp -r ${scriptDir}/debRpmAutoInstall.sh   . 
 
-packageSuffix=$(echo ${packgeName}  | awk -F '.' '{print $NF}')
+packageSuffix=$(echo ${packageName}  | awk -F '.' '{print $NF}')
 
 
 if [ ! -f  debRpmAutoInstall.sh  ];then
     echo '#!/usr/bin/expect ' >  debRpmAutoInstall.sh
-    echo 'set packgeName [lindex $argv 0]' >>  debRpmAutoInstall.sh
+    echo 'set packageName [lindex $argv 0]' >>  debRpmAutoInstall.sh
     echo 'set packageSuffix [lindex $argv 1]' >>  debRpmAutoInstall.sh
     echo 'set timeout 3 ' >>  debRpmAutoInstall.sh
     echo 'if { ${packageSuffix} == "deb" } {' >>  debRpmAutoInstall.sh
-    echo '    spawn  dpkg -i ${packgeName} '  >>  debRpmAutoInstall.sh
+    echo '    spawn  dpkg -i ${packageName} '  >>  debRpmAutoInstall.sh
     echo '} elseif { ${packageSuffix} == "rpm"} {' >>  debRpmAutoInstall.sh
-    echo '    spawn rpm -ivh ${packgeName}'  >>  debRpmAutoInstall.sh
+    echo '    spawn rpm -ivh ${packageName}'  >>  debRpmAutoInstall.sh
     echo '}' >>  debRpmAutoInstall.sh
     echo 'expect "*one:"' >>  debRpmAutoInstall.sh
     echo 'send  "\r"' >>  debRpmAutoInstall.sh
@@ -261,25 +261,25 @@ fi
 
 echoColor G "===== instal Package ====="
 
-if [[ ${packgeName} =~ "deb" ]];then
+if [[ ${packageName} =~ "deb" ]];then
     cd ${installPath}
     dpkg -r taostools
     dpkg -r tdengine
-    if [[ ${packgeName} =~ "TDengine" ]];then
-        echoColor BD "./debRpmAutoInstall.sh ${packgeName}  ${packageSuffix}" &&   chmod 755 debRpmAutoInstall.sh &&  ./debRpmAutoInstall.sh  ${packgeName}  ${packageSuffix}
+    if [[ ${packageName} =~ "TDengine" ]];then
+        echoColor BD "./debRpmAutoInstall.sh ${packageName}  ${packageSuffix}" &&   chmod 755 debRpmAutoInstall.sh &&  ./debRpmAutoInstall.sh  ${packageName}  ${packageSuffix}
     else
-        echoColor BD "dpkg  -i ${packgeName}" &&   dpkg  -i ${packgeName}
+        echoColor BD "dpkg  -i ${packageName}" &&   dpkg  -i ${packageName}
     fi
-elif [[ ${packgeName} =~ "rpm" ]];then
+elif [[ ${packageName} =~ "rpm" ]];then
     cd ${installPath}
     sudo rpm -e tdengine
     sudo rpm -e taostools
-    if [[ ${packgeName} =~ "TDengine" ]];then
-        echoColor BD "./debRpmAutoInstall.sh ${packgeName}  ${packageSuffix}" &&   chmod 755 debRpmAutoInstall.sh &&  ./debRpmAutoInstall.sh  ${packgeName}  ${packageSuffix}
+    if [[ ${packageName} =~ "TDengine" ]];then
+        echoColor BD "./debRpmAutoInstall.sh ${packageName}  ${packageSuffix}" &&   chmod 755 debRpmAutoInstall.sh &&  ./debRpmAutoInstall.sh  ${packageName}  ${packageSuffix}
     else
-        echoColor BD "rpm  -ivh ${packgeName}" &&   rpm  -ivh ${packgeName}
+        echoColor BD "rpm  -ivh ${packageName}" &&   rpm  -ivh ${packageName}
     fi
-elif [[ ${packgeName} =~ "tar" ]];then
+elif [[ ${packageName} =~ "tar" ]];then
     echoColor G "===== check installPackage File of tar ====="
     cd  ${oriInstallPath}
     if [ ! -f  {originPackageName}  ];then
@@ -290,7 +290,7 @@ elif [[ ${packgeName} =~ "tar" ]];then
     echoColor BD "tar -xf ${originPackageName}" && tar -xf ${originPackageName} 
     cd ${installPath} 
     echoColor YD "unzip the new installation package" 
-    echoColor BD "tar -xf ${packgeName}" && tar -xf ${packgeName} 
+    echoColor BD "tar -xf ${packageName}" && tar -xf ${packageName} 
 
     if [ ${testFile} != "tools" ] ;then
         cd ${installPath}/${tdPath} && tar xf ${subFile}
@@ -326,15 +326,15 @@ fi
 
 cd ${installPath}
 
-if [[ ${packgeName} =~ "Lite" ]]  ||   ([[ ${packgeName} =~ "x64" ]] && [[ ${packgeName} =~ "client" ]]) ||  ([[ ${packgeName} =~ "deb" ]] && [[ ${packgeName} =~ "server" ]])  || ([[ ${packgeName} =~ "rpm" ]] && [[ ${packgeName} =~ "server" ]]) ;then
+if [[ ${packageName} =~ "Lite" ]]  ||   ([[ ${packageName} =~ "x64" ]] && [[ ${packageName} =~ "client" ]]) ||  ([[ ${packageName} =~ "deb" ]] && [[ ${packageName} =~ "server" ]])  || ([[ ${packageName} =~ "rpm" ]] && [[ ${packageName} =~ "server" ]]) ;then
     echoColor G "===== install taos-tools when package is lite or client ====="
     cd ${installPath}
     if [ ! -f "taosTools-2.1.3-Linux-x64.tar.gz " ];then
         wgetFile taosTools-2.1.3-Linux-x64.tar.gz v2.1.3 web
         tar xf taosTools-2.1.3-Linux-x64.tar.gz  
     fi
-    cd taosTools-2.1.3 && bash install-taostools.sh
-elif  ([[ ${packgeName} =~ "arm64" ]] && [[ ${packgeName} =~ "client" ]]);then
+    cd taosTools-2.1.3 && bash install-tools.sh
+elif  ([[ ${packageName} =~ "arm64" ]] && [[ ${packageName} =~ "client" ]]);then
     echoColor G "===== install taos-tools arm when package is arm64-client ====="
     cd ${installPath}
     if [ ! -f "taosTools-2.1.3-Linux-x64.tar.gz " ];then
@@ -342,37 +342,37 @@ elif  ([[ ${packgeName} =~ "arm64" ]] && [[ ${packgeName} =~ "client" ]]);then
         tar xf taosTools-2.1.3-Linux-arm64.tar.gz
     fi    
     
-    cd taosTools-2.1.3 && bash install-taostools.sh
+    cd taosTools-2.1.3 && bash install-tools.sh
 fi
 
 echoColor G  "===== start TDengine ====="
 
-if [[ ${packgeName} =~ "server" ]] ;then
+if [[ ${packageName} =~ "server" ]] ;then
     echoColor BD " rm -rf /var/lib/taos/* &&  systemctl restart taosd "
     rm -rf /var/lib/taos/*
     systemctl restart taosd
 fi
 
-rm -rf ${installPath}/${packgeName}
+rm -rf ${installPath}/${packageName}
 rm -rf ${installPath}/${tdPath}/
 
-# if ([[ ${packgeName} =~ "Lite" ]] &&  [[ ${packgeName} =~ "tar" ]]) ||   [[ ${packgeName} =~ "client" ]] ;then
+# if ([[ ${packageName} =~ "Lite" ]] &&  [[ ${packageName} =~ "tar" ]]) ||   [[ ${packageName} =~ "client" ]] ;then
 #     echoColor G "===== install taos-tools when package is lite or client ====="
 #     cd ${installPath}
 #     wgetFile taosTools-2.1.2-Linux-x64.tar.gz .
 #     tar xf taosTools-2.1.2-Linux-x64.tar.gz
-#     cd taosTools-2.1.2 && bash install-taostools.sh
-# elif [[ ${packgeName} =~ "Lite" ]] &&  [[ ${packgeName} =~ "deb" ]] ;then
+#     cd taosTools-2.1.2 && bash install-tools.sh
+# elif [[ ${packageName} =~ "Lite" ]] &&  [[ ${packageName} =~ "deb" ]] ;then
 #     echoColor G "===== install taos-tools when package is lite or client ====="
 #     cd ${installPath}
 #     wgetFile taosTools-2.1.2-Linux-x64.tar.gz .
 #     tar xf taosTools-2.1.2-Linux-x64.tar.gz
-#     cd taosTools-2.1.2 && bash install-taostools.sh
-# elif [[ ${packgeName} =~ "Lite" ]] &&  [[ ${packgeName} =~ "rpm" ]]  ;then
+#     cd taosTools-2.1.2 && bash install-tools.sh
+# elif [[ ${packageName} =~ "Lite" ]] &&  [[ ${packageName} =~ "rpm" ]]  ;then
 #     echoColor G "===== install taos-tools when package is lite or client ====="
 #     cd ${installPath}
 #     wgetFile taosTools-2.1.2-Linux-x64.tar.gz .
 #     tar xf taosTools-2.1.2-Linux-x64.tar.gz
-#     cd taosTools-2.1.2 && bash install-taostools.sh
+#     cd taosTools-2.1.2 && bash install-tools.sh
 # fi
 
diff --git a/packaging/tools/install.sh b/packaging/tools/install.sh
index 2495e177e1..a3f8b53d33 100755
--- a/packaging/tools/install.sh
+++ b/packaging/tools/install.sh
@@ -24,7 +24,7 @@ productName="TDengine"
 emailName="taosdata.com"
 uninstallScript="rmtaos"
 historyFile="taos_history"
-tarName="taos.tar.gz"
+tarName="package.tar.gz"
 dataDir="/var/lib/taos"
 logDir="/var/log/taos"
 configDir="/etc/taos"
@@ -222,24 +222,24 @@ function install_bin() {
   ${csudo}cp -r ${script_dir}/bin/* ${install_main_dir}/bin && ${csudo}chmod 0555 ${install_main_dir}/bin/*
 
   #Make link
-  [ -x ${install_main_dir}/bin/${clientName} ] && ${csudo}ln -s ${install_main_dir}/bin/${clientName} ${bin_link_dir}/${clientName} || :
-  [ -x ${install_main_dir}/bin/${serverName} ] && ${csudo}ln -s ${install_main_dir}/bin/${serverName} ${bin_link_dir}/${serverName} || :
-  [ -x ${install_main_dir}/bin/${udfdName} ] && ${csudo}ln -s ${install_main_dir}/bin/${udfdName} ${bin_link_dir}/${udfdName} || :
-  [ -x ${install_main_dir}/bin/${adapterName} ] && ${csudo}ln -s ${install_main_dir}/bin/${adapterName} ${bin_link_dir}/${adapterName} || :
+  [ -x ${install_main_dir}/bin/${clientName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${clientName} ${bin_link_dir}/${clientName} || :
+  [ -x ${install_main_dir}/bin/${serverName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${serverName} ${bin_link_dir}/${serverName} || :
+  [ -x ${install_main_dir}/bin/${udfdName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${udfdName} ${bin_link_dir}/${udfdName} || :
+  [ -x ${install_main_dir}/bin/${adapterName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${adapterName} ${bin_link_dir}/${adapterName} || :
   [ -x ${install_main_dir}/bin/${benchmarkName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${benchmarkName} ${bin_link_dir}/${demoName} || :
   [ -x ${install_main_dir}/bin/${benchmarkName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${benchmarkName} ${bin_link_dir}/${benchmarkName} || :
-  [ -x ${install_main_dir}/bin/${dumpName} ] && ${csudo}ln -s ${install_main_dir}/bin/${dumpName} ${bin_link_dir}/${dumpName} || :
-  [ -x ${install_main_dir}/bin/${xname} ] && ${csudo}ln -s ${install_main_dir}/bin/${xname} ${bin_link_dir}/${xname} || :
-  [ -x ${install_main_dir}/bin/${explorerName} ] && ${csudo}ln -s ${install_main_dir}/bin/${explorerName} ${bin_link_dir}/${explorerName} || :
-  [ -x ${install_main_dir}/bin/TDinsight.sh ] && ${csudo}ln -s ${install_main_dir}/bin/TDinsight.sh ${bin_link_dir}/TDinsight.sh || :
-  [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -s ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript} || :
-  [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo}ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
+  [ -x ${install_main_dir}/bin/${dumpName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${dumpName} ${bin_link_dir}/${dumpName} || :
+  [ -x ${install_main_dir}/bin/${xname} ] && ${csudo}ln -sf ${install_main_dir}/bin/${xname} ${bin_link_dir}/${xname} || :
+  [ -x ${install_main_dir}/bin/${explorerName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${explorerName} ${bin_link_dir}/${explorerName} || :
+  [ -x ${install_main_dir}/bin/TDinsight.sh ] && ${csudo}ln -sf ${install_main_dir}/bin/TDinsight.sh ${bin_link_dir}/TDinsight.sh || :
+  [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -sf ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript} || :
+  [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo}ln -sf ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
 
   if [ "$verMode" == "cluster" ] && [ "$clientName" != "$clientName2" ]; then
-    [ -x ${install_main_dir}/bin/${clientName} ] && ${csudo}ln -s ${install_main_dir}/bin/${clientName} ${bin_link_dir}/${clientName2} || :
-    [ -x ${install_main_dir}/bin/${benchmarkName} ] && ${csudo}ln -s ${install_main_dir}/bin/${benchmarkName} ${bin_link_dir}/${benchmarkName2} || :
-    [ -x ${install_main_dir}/bin/${dumpName} ] && ${csudo}ln -s ${install_main_dir}/bin/${dumpName} ${bin_link_dir}/${dumpName2} || :
-    [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -s ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript2} || :
+    [ -x ${install_main_dir}/bin/${clientName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${clientName} ${bin_link_dir}/${clientName2} || :
+    [ -x ${install_main_dir}/bin/${benchmarkName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${benchmarkName} ${bin_link_dir}/${benchmarkName2} || :
+    [ -x ${install_main_dir}/bin/${dumpName} ] && ${csudo}ln -sf ${install_main_dir}/bin/${dumpName} ${bin_link_dir}/${dumpName2} || :
+    [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -sf ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript2} || :
   fi
 }
 
@@ -250,14 +250,14 @@ function install_lib() {
   #${csudo}rm -rf ${v15_java_app_dir}              || :
   ${csudo}cp -rf ${script_dir}/driver/* ${install_main_dir}/driver && ${csudo}chmod 777 ${install_main_dir}/driver/*
 
-  ${csudo}ln -s ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
-  ${csudo}ln -s ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
+  ${csudo}ln -sf ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
+  ${csudo}ln -sf ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
 
   [ -f ${install_main_dir}/driver/libtaosws.so ] && ${csudo}ln -sf ${install_main_dir}/driver/libtaosws.so ${lib_link_dir}/libtaosws.so || :
 
   if [[ -d ${lib64_link_dir} && ! -e ${lib64_link_dir}/libtaos.so ]]; then
-    ${csudo}ln -s ${install_main_dir}/driver/libtaos.* ${lib64_link_dir}/libtaos.so.1 || :
-    ${csudo}ln -s ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so || :
+    ${csudo}ln -sf ${install_main_dir}/driver/libtaos.* ${lib64_link_dir}/libtaos.so.1 || :
+    ${csudo}ln -sf ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so || :
 
     [ -f ${install_main_dir}/libtaosws.so ] && ${csudo}ln -sf ${install_main_dir}/libtaosws.so ${lib64_link_dir}/libtaosws.so || :
   fi
@@ -347,10 +347,10 @@ function install_header() {
   [ -f ${inc_link_dir}/taosws.h ] && ${csudo}rm -f ${inc_link_dir}/taosws.h || :
 
   ${csudo}cp -f ${script_dir}/inc/* ${install_main_dir}/include && ${csudo}chmod 644 ${install_main_dir}/include/*
-  ${csudo}ln -s ${install_main_dir}/include/taos.h ${inc_link_dir}/taos.h
-  ${csudo}ln -s ${install_main_dir}/include/taosdef.h ${inc_link_dir}/taosdef.h
-  ${csudo}ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
-  ${csudo}ln -s ${install_main_dir}/include/taosudf.h ${inc_link_dir}/taosudf.h  
+  ${csudo}ln -sf ${install_main_dir}/include/taos.h ${inc_link_dir}/taos.h
+  ${csudo}ln -sf ${install_main_dir}/include/taosdef.h ${inc_link_dir}/taosdef.h
+  ${csudo}ln -sf ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
+  ${csudo}ln -sf ${install_main_dir}/include/taosudf.h ${inc_link_dir}/taosudf.h  
 
   [ -f ${install_main_dir}/include/taosws.h ] && ${csudo}ln -sf ${install_main_dir}/include/taosws.h ${inc_link_dir}/taosws.h || :
 }
@@ -511,7 +511,7 @@ function install_adapter_config() {
   fi
 
   [ -f ${cfg_install_dir}/${adapterName}.toml ] &&
-    ${csudo}ln -s ${cfg_install_dir}/${adapterName}.toml ${install_main_dir}/cfg/${adapterName}.toml
+    ${csudo}ln -sf ${cfg_install_dir}/${adapterName}.toml ${install_main_dir}/cfg/${adapterName}.toml
 
   [ ! -z $1 ] && return 0 || : # only install client
 
@@ -527,7 +527,7 @@ function install_config() {
     ${csudo}cp -f ${script_dir}/cfg/${configFile} ${cfg_install_dir}/${configFile}.new
   fi
 
-  ${csudo}ln -s ${cfg_install_dir}/${configFile} ${install_main_dir}/cfg
+  ${csudo}ln -sf ${cfg_install_dir}/${configFile} ${install_main_dir}/cfg
 
   [ ! -z $1 ] && return 0 || : # only install client
 
@@ -573,13 +573,13 @@ function install_log() {
   ${csudo}rm -rf ${log_dir} || :
   ${csudo}mkdir -p ${log_dir} && ${csudo}chmod 777 ${log_dir}
 
-  ${csudo}ln -s ${log_dir} ${install_main_dir}/log
+  ${csudo}ln -sf ${log_dir} ${install_main_dir}/log
 }
 
 function install_data() {
   ${csudo}mkdir -p ${data_dir}
 
-  ${csudo}ln -s ${data_dir} ${install_main_dir}/data
+  ${csudo}ln -sf ${data_dir} ${install_main_dir}/data
 }
 
 function install_connector() {
@@ -862,21 +862,21 @@ function updateProduct() {
     openresty_work=false
 
     echo
-    echo -e "${GREEN_DARK}To configure ${productName} ${NC}: edit ${cfg_install_dir}/${configFile}"
+    echo -e "${GREEN_DARK}To configure ${productName2} ${NC}: edit ${cfg_install_dir}/${configFile}"
     [ -f ${configDir}/taosadapter.toml ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To configure Adapter ${NC}: edit ${configDir}/taosadapter.toml"
+      echo -e "${GREEN_DARK}To configure ${clientName2} Adapter ${NC}: edit ${configDir}/taosadapter.toml"
     if ((${service_mod} == 0)); then
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
       [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Adatper ${NC}: ${csudo}systemctl start taosadapter ${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: ${csudo}systemctl start taosadapter ${NC}"
     elif ((${service_mod} == 1)); then
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}service ${serverName} start${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ${csudo}service ${serverName} start${NC}"
       [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Adapter ${NC}: ${csudo}service taosadapter start${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: ${csudo}service taosadapter start${NC}"
     else
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ./${serverName}${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ./${serverName}${NC}"
       [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start ${clientName} Adapter ${NC}: taosadapter &${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: taosadapter &${NC}"
     fi
 
     if [ ${openresty_work} = 'true' ]; then
@@ -887,7 +887,7 @@ function updateProduct() {
 
     if ((${prompt_force} == 1)); then
       echo ""
-      echo -e "${RED}Please run '${serverName} --force-keep-file' at first time for the exist ${productName} $exist_version!${NC}"
+      echo -e "${RED}Please run '${serverName} --force-keep-file' at first time for the exist ${productName2} $exist_version!${NC}"
     fi
     echo
     echo -e "\033[44;32;1m${productName2} is updated successfully!${NC}"
@@ -944,21 +944,21 @@ function installProduct() {
 
     # Ask if to start the service
     echo
-    echo -e "${GREEN_DARK}To configure ${productName} ${NC}: edit ${cfg_install_dir}/${configFile}"
+    echo -e "${GREEN_DARK}To configure ${productName2} ${NC}: edit ${cfg_install_dir}/${configFile}"
     [ -f ${configDir}/taosadapter.toml ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To configure Taos Adapter ${NC}: edit ${configDir}/taosadapter.toml"
+      echo -e "${GREEN_DARK}To configure ${clientName2} Adapter ${NC}: edit ${configDir}/taosadapter.toml"
     if ((${service_mod} == 0)); then
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
       [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Taos Adatper ${NC}: ${csudo}systemctl start taosadapter ${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: ${csudo}systemctl start taosadapter ${NC}"
     elif ((${service_mod} == 1)); then
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}service ${serverName} start${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ${csudo}service ${serverName} start${NC}"
       [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: ${csudo}service taosadapter start${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: ${csudo}service taosadapter start${NC}"
     else
-      echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${serverName}${NC}"
+      echo -e "${GREEN_DARK}To start ${productName2}     ${NC}: ${serverName}${NC}"
       [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: taosadapter &${NC}"
+        echo -e "${GREEN_DARK}To start ${clientName2} Adapter ${NC}: taosadapter &${NC}"
     fi
 
     if [ ! -z "$firstEp" ]; then
@@ -970,24 +970,24 @@ function installProduct() {
         tmpPort=""
       fi
       if [[ "$tmpPort" != "" ]]; then
-        echo -e "${GREEN_DARK}To access ${productName}    ${NC}: ${clientName} -h $tmpFqdn -P $tmpPort${GREEN_DARK} to login into cluster, then${NC}"
+        echo -e "${GREEN_DARK}To access ${productName2}    ${NC}: ${clientName2} -h $tmpFqdn -P $tmpPort${GREEN_DARK} to login into cluster, then${NC}"
       else
-        echo -e "${GREEN_DARK}To access ${productName}    ${NC}: ${clientName} -h $tmpFqdn${GREEN_DARK} to login into cluster, then${NC}"
+        echo -e "${GREEN_DARK}To access ${productName2}    ${NC}: ${clientName2} -h $tmpFqdn${GREEN_DARK} to login into cluster, then${NC}"
       fi
       echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
       echo
     elif [ ! -z "$serverFqdn" ]; then
-      echo -e "${GREEN_DARK}To access ${productName}    ${NC}: ${clientName} -h $serverFqdn${GREEN_DARK} to login into ${productName} server${NC}"
+      echo -e "${GREEN_DARK}To access ${productName2}    ${NC}: ${clientName2} -h $serverFqdn${GREEN_DARK} to login into ${productName2} server${NC}"
       echo
     fi
 
-    echo -e "\033[44;32;1m${productName} is installed successfully!${NC}"
+    echo -e "\033[44;32;1m${productName2} is installed successfully!${NC}"
     echo
   else # Only install client
     install_bin
     install_config
     echo
-    echo -e "\033[44;32;1m${productName} client is installed successfully!${NC}"
+    echo -e "\033[44;32;1m${productName2} client is installed successfully!${NC}"
   fi
 
   touch ~/.${historyFile}
diff --git a/packaging/tools/install_client.sh b/packaging/tools/install_client.sh
index 1543c59297..d941fbc0cb 100755
--- a/packaging/tools/install_client.sh
+++ b/packaging/tools/install_client.sh
@@ -17,7 +17,7 @@ serverName="taosd"
 clientName="taos"
 uninstallScript="rmtaos"
 configFile="taos.cfg"
-tarName="taos.tar.gz"
+tarName="package.tar.gz"
 
 osType=Linux
 pagMode=full
diff --git a/packaging/tools/make_install.sh b/packaging/tools/make_install.sh
index 5725560bd6..f6fc64d875 100755
--- a/packaging/tools/make_install.sh
+++ b/packaging/tools/make_install.sh
@@ -606,23 +606,23 @@ function update_TDengine() {
 
   echo -e "${GREEN_DARK}To configure ${productName} ${NC}: edit ${configDir}/${configFile}"
   [ -f ${configDir}/taosadapter.toml ] && [ -f ${installDir}/bin/taosadapter ] && \
-    echo -e "${GREEN_DARK}To configure Taos Adapter ${NC}: edit ${configDir}/taosadapter.toml"
+    echo -e "${GREEN_DARK}To configure Adapter ${NC}: edit ${configDir}/taosadapter.toml"
   if ((${service_mod} == 0)); then
     echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
     [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To start Taos Adatper ${NC}: ${csudo}systemctl start taosadapter ${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: ${csudo}systemctl start taosadapter ${NC}"
   elif ((${service_mod} == 1)); then
     echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}service ${serverName} start${NC}"
     [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: ${csudo}service taosadapter start${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: ${csudo}service taosadapter start${NC}"
   else
     if [ "$osType" != "Darwin" ]; then
       echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${serverName}${NC}"
       [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: taosadapter &${NC}"
+        echo -e "${GREEN_DARK}To start Adapter ${NC}: taosadapter &${NC}"
     else
       echo -e "${GREEN_DARK}To start service      ${NC}: launchctl start com.tdengine.taosd${NC}"
-      echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: launchctl start com.tdengine.taosadapter${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: launchctl start com.tdengine.taosadapter${NC}"
     fi
   fi
 
@@ -658,23 +658,23 @@ function install_TDengine() {
   echo
   echo -e "${GREEN_DARK}To configure ${productName} ${NC}: edit ${configDir}/${configFile}"
   [ -f ${configDir}/taosadapter.toml ] && [ -f ${installDir}/bin/taosadapter ] && \
-    echo -e "${GREEN_DARK}To configure Taos Adapter ${NC}: edit ${configDir}/taosadapter.toml"
+    echo -e "${GREEN_DARK}To configure Adapter ${NC}: edit ${configDir}/taosadapter.toml"
   if ((${service_mod} == 0)); then
     echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${csudo}systemctl start ${serverName}${NC}"
     [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: ${csudo}systemctl start taosadapter ${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: ${csudo}systemctl start taosadapter ${NC}"
   elif ((${service_mod} == 1)); then
     echo -e "${GREEN_DARK}To start ${productName}    ${NC}: ${csudo}service ${serverName} start${NC}"
     [ -f ${service_config_dir}/taosadapter.service ] && [ -f ${installDir}/bin/taosadapter ] && \
-      echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: ${csudo}service taosadapter start${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: ${csudo}service taosadapter start${NC}"
   else
     if [ "$osType" != "Darwin" ]; then
       echo -e "${GREEN_DARK}To start ${productName}     ${NC}: ${serverName}${NC}"
       [ -f ${installDir}/bin/taosadapter ] && \
-        echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: taosadapter &${NC}"
+        echo -e "${GREEN_DARK}To start Adapter ${NC}: taosadapter &${NC}"
     else
       echo -e "${GREEN_DARK}To start service      ${NC}: launchctl start com.tdengine.taosd${NC}"
-      echo -e "${GREEN_DARK}To start Taos Adapter ${NC}: launchctl start com.tdengine.taosadapter${NC}"
+      echo -e "${GREEN_DARK}To start Adapter ${NC}: launchctl start com.tdengine.taosadapter${NC}"
     fi
   fi
 
diff --git a/packaging/tools/makeclient.sh b/packaging/tools/makeclient.sh
index 208bfc183c..f46de0f94b 100755
--- a/packaging/tools/makeclient.sh
+++ b/packaging/tools/makeclient.sh
@@ -24,7 +24,7 @@ clientName2="${12}"
 productName="TDengine"
 clientName="taos"
 configFile="taos.cfg"
-tarName="taos.tar.gz"
+tarName="package.tar.gz"
 
 if [ "$osType" != "Darwin" ]; then
   script_dir="$(dirname $(readlink -f $0))"
diff --git a/packaging/tools/makepkg.sh b/packaging/tools/makepkg.sh
index 7ad3cf7b0a..d71d5df47c 100755
--- a/packaging/tools/makepkg.sh
+++ b/packaging/tools/makepkg.sh
@@ -28,7 +28,7 @@ productName="TDengine"
 serverName="taosd"
 clientName="taos"
 configFile="taos.cfg"
-tarName="taos.tar.gz"
+tarName="package.tar.gz"
 dumpName="taosdump"
 benchmarkName="taosBenchmark"
 toolsName="taostools"
@@ -171,22 +171,22 @@ if [ -n "${taostools_bin_files}" ]; then
         && cp ${taostools_bin_files} ${taostools_install_dir}/bin \
         && chmod a+x ${taostools_install_dir}/bin/* || :
 
-    if [ -f ${top_dir}/tools/taos-tools/packaging/tools/install-taostools.sh ]; then
-        cp ${top_dir}/tools/taos-tools/packaging/tools/install-taostools.sh \
+    if [ -f ${top_dir}/tools/taos-tools/packaging/tools/install-tools.sh ]; then
+        cp ${top_dir}/tools/taos-tools/packaging/tools/install-tools.sh \
             ${taostools_install_dir}/ > /dev/null \
-            && chmod a+x ${taostools_install_dir}/install-taostools.sh \
-            || echo -e "failed to copy install-taostools.sh"
+            && chmod a+x ${taostools_install_dir}/install-tools.sh \
+            || echo -e "failed to copy install-tools.sh"
     else
-        echo -e "install-taostools.sh not found"
+        echo -e "install-tools.sh not found"
     fi
 
-    if [ -f ${top_dir}/tools/taos-tools/packaging/tools/uninstall-taostools.sh ]; then
-        cp ${top_dir}/tools/taos-tools/packaging/tools/uninstall-taostools.sh \
+    if [ -f ${top_dir}/tools/taos-tools/packaging/tools/uninstall-tools.sh ]; then
+        cp ${top_dir}/tools/taos-tools/packaging/tools/uninstall-tools.sh \
             ${taostools_install_dir}/ > /dev/null \
-            && chmod a+x ${taostools_install_dir}/uninstall-taostools.sh \
-            || echo -e "failed to copy uninstall-taostools.sh"
+            && chmod a+x ${taostools_install_dir}/uninstall-tools.sh \
+            || echo -e "failed to copy uninstall-tools.sh"
     else
-        echo -e "uninstall-taostools.sh not found"
+        echo -e "uninstall-tools.sh not found"
     fi
 
     if [ -f ${build_dir}/lib/libavro.so.23.0.0 ]; then
diff --git a/packaging/tools/post.sh b/packaging/tools/post.sh
index 78eb7f7587..9861806677 100755
--- a/packaging/tools/post.sh
+++ b/packaging/tools/post.sh
@@ -530,7 +530,7 @@ function install_service_on_sysvinit() {
 function clean_service_on_systemd() {
     taosd_service_config="${service_config_dir}/taosd.service"
 
-    # taosd service already is stoped before install in preinst script
+    # taosd service already is stopped before install in preinst script
     #if systemctl is-active --quiet taosd; then
     #    echo "TDengine is running, stopping it..."
     #    ${csudo}systemctl stop taosd &> /dev/null || echo &> /dev/null
diff --git a/packaging/tools/release_note b/packaging/tools/release_note
index 4578a4523c..81b09ba69c 100644
--- a/packaging/tools/release_note
+++ b/packaging/tools/release_note
@@ -72,7 +72,7 @@ New Features:
  
 taos-1.4.13 (Released on 2018-12-14)
 Bugs Fixed:
-    - Clients failed to connect to server due to unexpected and invalid packets recieved by the server.
+    - Clients failed to connect to server due to unexpected and invalid packets received by the server.
 Features Added:
     - Add support to HikariCP in TSDB JDBC driver.
 
diff --git a/packaging/tools/repair_link.sh b/packaging/tools/repair_link.sh
index 7fd503f270..d71a16023e 100755
--- a/packaging/tools/repair_link.sh
+++ b/packaging/tools/repair_link.sh
@@ -8,7 +8,7 @@ read -p "Please enter link directory such as /var/lib/taos/tsdb: " linkDir
 
 while true; do
     if [ ! -d $linkDir ]; then
-        read -p "Paht not exists, please enter the correct link path:" linkDir
+        read -p "Path not exists, please enter the correct link path:" linkDir
         continue
     fi
     break
@@ -28,12 +28,12 @@ for linkFile in $(find -L $linkDir -xtype l); do
     if [ -z "${dirHash["$dirName"]}" ]; then
         read -p "Please enter the directory to replace ${dirName}:" newDir
 
-        read -p "Do you want to replcace all[y/N]?" replcaceAll
-        if [[ ( "${replcaceAll}" == "y") || ( "${replcaceAll}" == "Y") ]]; then
+        read -p "Do you want to replace all[y/N]?" replaceAll
+        if [[ ( "${replaceAll}" == "y") || ( "${replaceAll}" == "Y") ]]; then
             dirHash["$dirName"]="$newDir"
         fi
     fi
 
-    # Replcace the file
+    # Replace the file
     ln -sf "${newDir}/${baseName}" "${linkFile}"
 done
diff --git a/packaging/tools/tdengine.iss b/packaging/tools/tdengine.iss
index 02f412f5d4..8676fa2c51 100644
--- a/packaging/tools/tdengine.iss
+++ b/packaging/tools/tdengine.iss
@@ -21,7 +21,7 @@
 [Setup]
 VersionInfoVersion={#MyAppVersion}
 AppId={{A0F7A93C-79C4-485D-B2B8-F0D03DF42FAB}
-AppName={#MyAppName}
+AppName={#CusName}
 AppVersion={#MyAppVersion}
 ;AppVerName={#MyAppName} {#MyAppVersion}
 AppPublisher={#MyAppPublisher}
@@ -64,8 +64,8 @@ Source: {#MyAppSourceDir}\taosdump.exe; DestDir: "{app}"; DestName: "{#CusPrompt
 
 
 [run]
-Filename: {sys}\sc.exe; Parameters: "create taosd start= DEMAND binPath= ""C:\\{#CusName}\\taosd.exe --win_service""" ; Flags: runhidden
-Filename: {sys}\sc.exe; Parameters: "create taosadapter start= DEMAND binPath= ""C:\\{#CusName}\\taosadapter.exe""" ; Flags: runhidden
+Filename: {sys}\sc.exe; Parameters: "create taosd start= DEMAND binPath= ""C:\\TDengine\\taosd.exe --win_service""" ; Flags: runhidden
+Filename: {sys}\sc.exe; Parameters: "create taosadapter start= DEMAND binPath= ""C:\\TDengine\\taosadapter.exe""" ; Flags: runhidden
 
 [UninstallRun]
 RunOnceId: "stoptaosd"; Filename: {sys}\sc.exe; Parameters: "stop taosd" ; Flags: runhidden
diff --git a/packaging/tools/windows_before_install.txt b/packaging/tools/windows_before_install.txt
index ef783bf10b..91cb35d77e 100644
--- a/packaging/tools/windows_before_install.txt
+++ b/packaging/tools/windows_before_install.txt
@@ -1,4 +1,4 @@
-TDengine is a high-efficient, scalable, high-available distributed time-series database, which makes a lot of optimizations on inserting and querying data, which is far more efficient than normal regular databases. So TDengine can meet the high requirements of IOT and other areas on storing and querying a large amount of data. 
+TDengine is an open-source, cloud-native time-series database optimized for Internet of Things (IoT), Connected Cars, and Industrial IoT. With its built-in caching, stream processing, and data subscription capabilities, TDengine offers a simplified solution for time-series data processing.
 
 TDengine will be installed under C:\TDengine, users can modify configuration file C:\TDengine\cfg\taos.cfg, set the log file path or other parameters.
 To start/stop TDengine with administrator privileges:  sc start/stop taosd
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index b10daa9c21..86db35b412 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -287,22 +287,25 @@ static FORCE_INLINE SReqResultInfo* tmqGetCurResInfo(TAOS_RES* res) {
 }
 
 static FORCE_INLINE SReqResultInfo* tmqGetNextResInfo(TAOS_RES* res, bool convertUcs4) {
-  SMqRspObj* msg = (SMqRspObj*)res;
-  msg->resIter++;
-  if (msg->resIter < msg->rsp.blockNum) {
-    SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)taosArrayGetP(msg->rsp.blockData, msg->resIter);
-    if (msg->rsp.withSchema) {
-      SSchemaWrapper* pSW = (SSchemaWrapper*)taosArrayGetP(msg->rsp.blockSchema, msg->resIter);
-      setResSchemaInfo(&msg->resInfo, pSW->pSchema, pSW->nCols);
-      taosMemoryFreeClear(msg->resInfo.row);
-      taosMemoryFreeClear(msg->resInfo.pCol);
-      taosMemoryFreeClear(msg->resInfo.length);
-      taosMemoryFreeClear(msg->resInfo.convertBuf);
-      taosMemoryFreeClear(msg->resInfo.convertJson);
+  SMqRspObj* pRspObj = (SMqRspObj*)res;
+  pRspObj->resIter++;
+
+  if (pRspObj->resIter < pRspObj->rsp.blockNum) {
+    SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)taosArrayGetP(pRspObj->rsp.blockData, pRspObj->resIter);
+    if (pRspObj->rsp.withSchema) {
+      SSchemaWrapper* pSW = (SSchemaWrapper*)taosArrayGetP(pRspObj->rsp.blockSchema, pRspObj->resIter);
+      setResSchemaInfo(&pRspObj->resInfo, pSW->pSchema, pSW->nCols);
+      taosMemoryFreeClear(pRspObj->resInfo.row);
+      taosMemoryFreeClear(pRspObj->resInfo.pCol);
+      taosMemoryFreeClear(pRspObj->resInfo.length);
+      taosMemoryFreeClear(pRspObj->resInfo.convertBuf);
+      taosMemoryFreeClear(pRspObj->resInfo.convertJson);
     }
-    setQueryResultFromRsp(&msg->resInfo, pRetrieve, convertUcs4, false);
-    return &msg->resInfo;
+
+    setQueryResultFromRsp(&pRspObj->resInfo, pRetrieve, convertUcs4, false);
+    return &pRspObj->resInfo;
   }
+
   return NULL;
 }
 
diff --git a/source/client/src/clientTmq.c b/source/client/src/clientTmq.c
index d32b5a1beb..7883f198a8 100644
--- a/source/client/src/clientTmq.c
+++ b/source/client/src/clientTmq.c
@@ -20,17 +20,12 @@
 #include "tdatablock.h"
 #include "tdef.h"
 #include "tglobal.h"
-#include "tmsgtype.h"
 #include "tqueue.h"
 #include "tref.h"
 #include "ttimer.h"
 
-#if 0
-#undef tsem_post
-#define tsem_post(x)                                         \
-  tscInfo("call sem post at %s %d", __FUNCTION__, __LINE__); \
-  sem_post(x)
-#endif
+#define EMPTY_BLOCK_POLL_IDLE_DURATION  100
+#define DEFAULT_AUTO_COMMIT_INTERVAL    5000
 
 struct SMqMgmt {
   int8_t  inited;
@@ -76,18 +71,16 @@ struct tmq_conf_t {
 };
 
 struct tmq_t {
-  int64_t refId;
-  // conf
-  char     groupId[TSDB_CGROUP_LEN];
-  char     clientId[256];
-  int8_t   withTbName;
-  int8_t   useSnapshot;
-  int8_t   autoCommit;
-  int32_t  autoCommitInterval;
-  int32_t  resetOffsetCfg;
-  uint64_t consumerId;
-  bool     hbBgEnable;
-
+  int64_t        refId;
+  char           groupId[TSDB_CGROUP_LEN];
+  char           clientId[256];
+  int8_t         withTbName;
+  int8_t         useSnapshot;
+  int8_t         autoCommit;
+  int32_t        autoCommitInterval;
+  int32_t        resetOffsetCfg;
+  uint64_t       consumerId;
+  bool           hbBgEnable;
   tmq_commit_cb* commitCb;
   void*          commitCbUserParam;
 
@@ -101,22 +94,17 @@ struct tmq_t {
   int64_t pollCnt;
 
   // timer
-  tmr_h hbLiveTimer;
-  tmr_h epTimer;
-  tmr_h reportTimer;
-  tmr_h commitTimer;
-
-  // connection
-  STscObj* pTscObj;
-
-  // container
-  SArray*     clientTopics;  // SArray<SMqClientTopic>
-  STaosQueue* mqueue;        // queue of rsp
-  STaosQall*  qall;
-  STaosQueue* delayedTask;  // delayed task queue for heartbeat and auto commit
-
-  // ctl
-  tsem_t rspSem;
+  tmr_h         hbLiveTimer;
+  tmr_h         epTimer;
+  tmr_h         reportTimer;
+  tmr_h         commitTimer;
+  STscObj*      pTscObj;       // connection
+  SArray*       clientTopics;  // SArray<SMqClientTopic>
+  STaosQueue*   mqueue;        // queue of rsp
+  STaosQall*    qall;
+  STaosQueue*   delayedTask;   // delayed task queue for heartbeat and auto commit
+  TdThreadMutex lock;          // used to protect the operation on each topic, when updating the epsets.
+  tsem_t        rspSem;
 };
 
 enum {
@@ -138,20 +126,17 @@ enum {
 };
 
 typedef struct {
-  // statistics
-  int64_t pollCnt;
-  // offset
+  int64_t      pollCnt;
   STqOffsetVal committedOffset;
   STqOffsetVal currentOffset;
-  // connection info
-  int32_t vgId;
-  int32_t vgStatus;
-  int32_t vgSkipCnt;
-  SEpSet  epSet;
+  int32_t      vgId;
+  int32_t      vgStatus;
+  int32_t      vgSkipCnt;
+  int64_t      emptyBlockReceiveTs; // once empty block is received, idle for ignoreCnt then start to poll data
+  SEpSet       epSet;
 } SMqClientVg;
 
 typedef struct {
-  // subscribe info
   char           topicName[TSDB_TOPIC_FNAME_LEN];
   char           db[TSDB_DB_FNAME_LEN];
   SArray*        vgs;  // SArray<SMqClientVg>
@@ -163,6 +148,8 @@ typedef struct {
   int32_t         epoch;
   SMqClientVg*    vgHandle;
   SMqClientTopic* topicHandle;
+  uint64_t        reqId;
+  SEpSet*         pEpset;
   union {
     SMqDataRsp dataRsp;
     SMqMetaRsp metaRsp;
@@ -213,12 +200,17 @@ typedef struct {
 typedef struct {
   SMqCommitCbParamSet* params;
   STqOffset*           pOffset;
-  SMqClientVg*         pMqVg;
-  /*char                 topicName[TSDB_TOPIC_FNAME_LEN];*/
-  /*int32_t              vgId;*/
+  char                 topicName[TSDB_TOPIC_FNAME_LEN];
+  int32_t              vgId;
+  tmq_t*               pTmq;
 } SMqCommitCbParam;
 
 static int32_t tmqAskEp(tmq_t* tmq, bool async);
+static int32_t makeTopicVgroupKey(char* dst, const char* topicName, int32_t vg);
+static int32_t tmqCommitDone(SMqCommitCbParamSet* pParamSet);
+static int32_t doSendCommitMsg(tmq_t* tmq, SMqClientVg* pVg, const char* pTopicName, SMqCommitCbParamSet* pParamSet,
+                               int32_t index, int32_t totalVgroups);
+static void tmqCommitRspCountDown(SMqCommitCbParamSet* pParamSet, int64_t consumerId, const char* pTopic, int32_t vgId);
 
 tmq_conf_t* tmq_conf_new() {
   tmq_conf_t* conf = taosMemoryCalloc(1, sizeof(tmq_conf_t));
@@ -229,8 +221,8 @@ tmq_conf_t* tmq_conf_new() {
 
   conf->withTbName = false;
   conf->autoCommit = true;
-  conf->autoCommitInterval = 5000;
-  conf->resetOffset = TMQ_CONF__RESET_OFFSET__EARLIEAST;
+  conf->autoCommitInterval = DEFAULT_AUTO_COMMIT_INTERVAL;
+  conf->resetOffset = TMQ_OFFSET__RESET_EARLIEAST;
   conf->hbBgEnable = true;
 
   return conf;
@@ -238,29 +230,35 @@ tmq_conf_t* tmq_conf_new() {
 
 void tmq_conf_destroy(tmq_conf_t* conf) {
   if (conf) {
-    if (conf->ip) taosMemoryFree(conf->ip);
-    if (conf->user) taosMemoryFree(conf->user);
-    if (conf->pass) taosMemoryFree(conf->pass);
+    if (conf->ip) {
+      taosMemoryFree(conf->ip);
+    }
+    if (conf->user) {
+      taosMemoryFree(conf->user);
+    }
+    if (conf->pass) {
+      taosMemoryFree(conf->pass);
+    }
     taosMemoryFree(conf);
   }
 }
 
 tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value) {
-  if (strcmp(key, "group.id") == 0) {
+  if (strcasecmp(key, "group.id") == 0) {
     tstrncpy(conf->groupId, value, TSDB_CGROUP_LEN);
     return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "client.id") == 0) {
+  if (strcasecmp(key, "client.id") == 0) {
     tstrncpy(conf->clientId, value, 256);
     return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "enable.auto.commit") == 0) {
-    if (strcmp(value, "true") == 0) {
+  if (strcasecmp(key, "enable.auto.commit") == 0) {
+    if (strcasecmp(value, "true") == 0) {
       conf->autoCommit = true;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "false") == 0) {
+    } else if (strcasecmp(value, "false") == 0) {
       conf->autoCommit = false;
       return TMQ_CONF_OK;
     } else {
@@ -268,31 +266,31 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
     }
   }
 
-  if (strcmp(key, "auto.commit.interval.ms") == 0) {
-    conf->autoCommitInterval = atoi(value);
+  if (strcasecmp(key, "auto.commit.interval.ms") == 0) {
+    conf->autoCommitInterval = taosStr2int64(value);
     return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "auto.offset.reset") == 0) {
-    if (strcmp(value, "none") == 0) {
-      conf->resetOffset = TMQ_CONF__RESET_OFFSET__NONE;
+  if (strcasecmp(key, "auto.offset.reset") == 0) {
+    if (strcasecmp(value, "none") == 0) {
+      conf->resetOffset = TMQ_OFFSET__RESET_NONE;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "earliest") == 0) {
-      conf->resetOffset = TMQ_CONF__RESET_OFFSET__EARLIEAST;
+    } else if (strcasecmp(value, "earliest") == 0) {
+      conf->resetOffset = TMQ_OFFSET__RESET_EARLIEAST;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "latest") == 0) {
-      conf->resetOffset = TMQ_CONF__RESET_OFFSET__LATEST;
+    } else if (strcasecmp(value, "latest") == 0) {
+      conf->resetOffset = TMQ_OFFSET__RESET_LATEST;
       return TMQ_CONF_OK;
     } else {
       return TMQ_CONF_INVALID;
     }
   }
 
-  if (strcmp(key, "msg.with.table.name") == 0) {
-    if (strcmp(value, "true") == 0) {
+  if (strcasecmp(key, "msg.with.table.name") == 0) {
+    if (strcasecmp(value, "true") == 0) {
       conf->withTbName = true;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "false") == 0) {
+    } else if (strcasecmp(value, "false") == 0) {
       conf->withTbName = false;
       return TMQ_CONF_OK;
     } else {
@@ -300,11 +298,11 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
     }
   }
 
-  if (strcmp(key, "experimental.snapshot.enable") == 0) {
-    if (strcmp(value, "true") == 0) {
+  if (strcasecmp(key, "experimental.snapshot.enable") == 0) {
+    if (strcasecmp(value, "true") == 0) {
       conf->snapEnable = true;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "false") == 0) {
+    } else if (strcasecmp(value, "false") == 0) {
       conf->snapEnable = false;
       return TMQ_CONF_OK;
     } else {
@@ -312,42 +310,44 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
     }
   }
 
-  if (strcmp(key, "experimental.snapshot.batch.size") == 0) {
-    conf->snapBatchSize = atoi(value);
+  if (strcasecmp(key, "experimental.snapshot.batch.size") == 0) {
+    conf->snapBatchSize = taosStr2int64(value);
     return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "enable.heartbeat.background") == 0) {
-    if (strcmp(value, "true") == 0) {
+  if (strcasecmp(key, "enable.heartbeat.background") == 0) {
+    if (strcasecmp(value, "true") == 0) {
       conf->hbBgEnable = true;
       return TMQ_CONF_OK;
-    } else if (strcmp(value, "false") == 0) {
+    } else if (strcasecmp(value, "false") == 0) {
       conf->hbBgEnable = false;
       return TMQ_CONF_OK;
     } else {
       return TMQ_CONF_INVALID;
     }
-    return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "td.connect.ip") == 0) {
+  if (strcasecmp(key, "td.connect.ip") == 0) {
     conf->ip = taosStrdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "td.connect.user") == 0) {
+
+  if (strcasecmp(key, "td.connect.user") == 0) {
     conf->user = taosStrdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "td.connect.pass") == 0) {
+
+  if (strcasecmp(key, "td.connect.pass") == 0) {
     conf->pass = taosStrdup(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "td.connect.port") == 0) {
-    conf->port = atoi(value);
+
+  if (strcasecmp(key, "td.connect.port") == 0) {
+    conf->port = taosStr2int64(value);
     return TMQ_CONF_OK;
   }
-  if (strcmp(key, "td.connect.db") == 0) {
-    /*conf->db = taosStrdup(value);*/
+
+  if (strcasecmp(key, "td.connect.db") == 0) {
     return TMQ_CONF_OK;
   }
 
@@ -355,7 +355,6 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
 }
 
 tmq_list_t* tmq_list_new() {
-  //
   return (tmq_list_t*)taosArrayInit(0, sizeof(void*));
 }
 
@@ -385,84 +384,77 @@ char** tmq_list_to_c_array(const tmq_list_t* list) {
   return container->pData;
 }
 
-static int32_t tmqMakeTopicVgKey(char* dst, const char* topicName, int32_t vg) {
-  return sprintf(dst, "%s:%d", topicName, vg);
-}
+static SMqClientVg* foundClientVg(SArray* pTopicList, const char* pName, int32_t vgId, int32_t* index, int32_t* numOfVgroups) {
+  int32_t numOfTopics = taosArrayGetSize(pTopicList);
+  *index = -1;
+  *numOfVgroups = 0;
 
-int32_t tmqCommitDone(SMqCommitCbParamSet* pParamSet) {
-  tmq_t* tmq = taosAcquireRef(tmqMgmt.rsetId, pParamSet->refId);
-  if (tmq == NULL) {
-    if (!pParamSet->async) {
-      tsem_destroy(&pParamSet->rspSem);
+  for(int32_t i = 0; i < numOfTopics; ++i) {
+    SMqClientTopic* pTopic = taosArrayGet(pTopicList, i);
+    if (strcmp(pTopic->topicName, pName) != 0) {
+      continue;
     }
-    taosMemoryFree(pParamSet);
-    terrno = TSDB_CODE_TMQ_CONSUMER_CLOSED;
-    return -1;
-  }
 
-  // if no more waiting rsp
-  if (pParamSet->async) {
-    // call async cb func
-    if (pParamSet->automatic && tmq->commitCb) {
-      tmq->commitCb(tmq, pParamSet->rspErr, tmq->commitCbUserParam);
-    } else if (!pParamSet->automatic && pParamSet->userCb) {
-      // sem post
-      pParamSet->userCb(tmq, pParamSet->rspErr, pParamSet->userParam);
+    *numOfVgroups = taosArrayGetSize(pTopic->vgs);
+    for (int32_t j = 0; j < (*numOfVgroups); ++j) {
+      SMqClientVg* pClientVg = taosArrayGet(pTopic->vgs, j);
+      if (pClientVg->vgId == vgId) {
+        *index = j;
+        return pClientVg;
+      }
     }
-    taosMemoryFree(pParamSet);
-  } else {
-    tsem_post(&pParamSet->rspSem);
   }
 
-#if 0
-    taosArrayDestroyP(pParamSet->successfulOffsets, taosMemoryFree);
-    taosArrayDestroyP(pParamSet->failedOffsets, taosMemoryFree);
-#endif
-  return 0;
+  return NULL;
 }
 
-static void tmqCommitRspCountDown(SMqCommitCbParamSet* pParamSet) {
-  int32_t waitingRspNum = atomic_sub_fetch_32(&pParamSet->waitingRspNum, 1);
-  if (waitingRspNum == 0) {
-    tmqCommitDone(pParamSet);
-  }
-}
-
-int32_t tmqCommitCb(void* param, SDataBuf* pBuf, int32_t code) {
+// Two problems do not need to be addressed here
+// 1. update to of epset. the response of poll request will automatically handle this problem
+// 2. commit failure. This one needs to be resolved.
+static int32_t tmqCommitCb(void* param, SDataBuf* pBuf, int32_t code) {
   SMqCommitCbParam*    pParam = (SMqCommitCbParam*)param;
   SMqCommitCbParamSet* pParamSet = (SMqCommitCbParamSet*)pParam->params;
-  // push into array
-#if 0
-  if (code == 0) {
-    taosArrayPush(pParamSet->failedOffsets, &pParam->pOffset);
-  } else {
-    taosArrayPush(pParamSet->successfulOffsets, &pParam->pOffset);
-  }
-#endif
 
-  // there may be race condition. fix it
-  if (pBuf->pEpSet != NULL && pParam->pMqVg != NULL) {
-    SMqClientVg* pMqVg = pParam->pMqVg;
-
-    SEp* pEp = GET_ACTIVE_EP(pBuf->pEpSet);
-    SEp* pOld = GET_ACTIVE_EP(&(pMqVg->epSet));
-    uDebug("subKey:%s update the epset vgId:%d, ep:%s:%d, old ep:%s:%d", pParam->pOffset->subKey, pMqVg->vgId,
-           pEp->fqdn, pEp->port, pOld->fqdn, pOld->port);
-    pParam->pMqVg->epSet = *pBuf->pEpSet;
-  }
+//  if (code != TSDB_CODE_SUCCESS) { // if commit offset failed, let's try again
+//    taosThreadMutexLock(&pParam->pTmq->lock);
+//    int32_t numOfVgroups, index;
+//    SMqClientVg* pVg = foundClientVg(pParam->pTmq->clientTopics, pParam->topicName, pParam->vgId, &index, &numOfVgroups);
+//    if (pVg == NULL) {
+//      tscDebug("consumer:0x%" PRIx64
+//               " subKey:%s vgId:%d commit failed, code:%s has been transferred to other consumer, no need retry ordinal:%d/%d",
+//               pParam->pTmq->consumerId, pParam->pOffset->subKey, pParam->vgId, tstrerror(code), index + 1, numOfVgroups);
+//    } else { // let's retry the commit
+//      int32_t code1 = doSendCommitMsg(pParam->pTmq, pVg, pParam->topicName, pParamSet, index, numOfVgroups);
+//      if (code1 != TSDB_CODE_SUCCESS) {  // retry failed.
+//        tscError("consumer:0x%" PRIx64 " topic:%s vgId:%d offset:%" PRId64
+//                 " retry failed, ignore this commit. code:%s ordinal:%d/%d",
+//                 pParam->pTmq->consumerId, pParam->topicName, pVg->vgId, pVg->committedOffset.version,
+//                 tstrerror(terrno), index + 1, numOfVgroups);
+//      }
+//    }
+//
+//    taosThreadMutexUnlock(&pParam->pTmq->lock);
+//
+//    taosMemoryFree(pParam->pOffset);
+//    taosMemoryFree(pBuf->pData);
+//    taosMemoryFree(pBuf->pEpSet);
+//
+//    tmqCommitRspCountDown(pParamSet, pParam->pTmq->consumerId, pParam->topicName, pParam->vgId);
+//    return 0;
+//  }
+//
+//  // todo replace the pTmq with refId
 
   taosMemoryFree(pParam->pOffset);
   taosMemoryFree(pBuf->pData);
   taosMemoryFree(pBuf->pEpSet);
 
-  /*tscDebug("receive offset commit cb of %s on vgId:%d, offset is %" PRId64, pParam->pOffset->subKey, pParam->->vgId,
-   * pOffset->version);*/
-
-  tmqCommitRspCountDown(pParamSet);
+  tmqCommitRspCountDown(pParamSet, pParam->pTmq->consumerId, pParam->topicName, pParam->vgId);
   return 0;
 }
 
-static int32_t tmqSendCommitReq(tmq_t* tmq, SMqClientVg* pVg, SMqClientTopic* pTopic, SMqCommitCbParamSet* pParamSet) {
+static int32_t doSendCommitMsg(tmq_t* tmq, SMqClientVg* pVg, const char* pTopicName, SMqCommitCbParamSet* pParamSet,
+                               int32_t index, int32_t totalVgroups) {
   STqOffset* pOffset = taosMemoryCalloc(1, sizeof(STqOffset));
   if (pOffset == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -474,10 +466,10 @@ static int32_t tmqSendCommitReq(tmq_t* tmq, SMqClientVg* pVg, SMqClientTopic* pT
   int32_t groupLen = strlen(tmq->groupId);
   memcpy(pOffset->subKey, tmq->groupId, groupLen);
   pOffset->subKey[groupLen] = TMQ_SEPARATOR;
-  strcpy(pOffset->subKey + groupLen + 1, pTopic->topicName);
+  strcpy(pOffset->subKey + groupLen + 1, pTopicName);
 
-  int32_t len;
-  int32_t code;
+  int32_t len = 0;
+  int32_t code = 0;
   tEncodeSize(tEncodeSTqOffset, pOffset, len, code);
   if (code < 0) {
     return -1;
@@ -508,7 +500,10 @@ static int32_t tmqSendCommitReq(tmq_t* tmq, SMqClientVg* pVg, SMqClientTopic* pT
 
   pParam->params = pParamSet;
   pParam->pOffset = pOffset;
-  pParam->pMqVg = pVg;  // there may be an race condition
+  pParam->vgId = pVg->vgId;
+  pParam->pTmq = tmq;
+
+  tstrncpy(pParam->topicName, pTopicName, tListLen(pParam->topicName));
 
   // build send info
   SMsgSendInfo* pMsgSendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
@@ -525,30 +520,28 @@ static int32_t tmqSendCommitReq(tmq_t* tmq, SMqClientVg* pVg, SMqClientTopic* pT
       .handle = NULL,
   };
 
-  SEp* pEp = &pVg->epSet.eps[pVg->epSet.inUse];
-  tscDebug("consumer:0x%" PRIx64 " topic:%s on vgId:%d offset:%" PRId64 " prev:%" PRId64 ", ep:%s:%d", tmq->consumerId,
-           pOffset->subKey, pVg->vgId, pOffset->val.version, pVg->committedOffset.version, pEp->fqdn, pEp->port);
-
-  // TODO: put into cb, the commit offset should be move to the callback function
-  pVg->committedOffset = pVg->currentOffset;
-
   pMsgSendInfo->requestId = generateRequestId();
   pMsgSendInfo->requestObjRefId = 0;
   pMsgSendInfo->param = pParam;
   pMsgSendInfo->paramFreeFp = taosMemoryFree;
   pMsgSendInfo->fp = tmqCommitCb;
   pMsgSendInfo->msgType = TDMT_VND_TMQ_COMMIT_OFFSET;
-  // send msg
 
   atomic_add_fetch_32(&pParamSet->waitingRspNum, 1);
   atomic_add_fetch_32(&pParamSet->totalRspNum, 1);
 
+  SEp* pEp = GET_ACTIVE_EP(&pVg->epSet);
+  tscDebug("consumer:0x%" PRIx64 " topic:%s on vgId:%d send offset:%" PRId64 " prev:%" PRId64
+           ", ep:%s:%d, ordinal:%d/%d, req:0x%" PRIx64,
+           tmq->consumerId, pOffset->subKey, pVg->vgId, pOffset->val.version, pVg->committedOffset.version, pEp->fqdn,
+           pEp->port, index + 1, totalVgroups, pMsgSendInfo->requestId);
+
   int64_t transporterId = 0;
   asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &pVg->epSet, &transporterId, pMsgSendInfo);
   return 0;
 }
 
-int32_t tmqCommitMsgImpl(tmq_t* tmq, const TAOS_RES* msg, int8_t async, tmq_commit_cb* userCb, void* userParam) {
+static int32_t tmqCommitMsgImpl(tmq_t* tmq, const TAOS_RES* msg, int8_t async, tmq_commit_cb* userCb, void* userParam) {
   char*   topic;
   int32_t vgId;
   if (TD_RES_TMQ(msg)) {
@@ -572,6 +565,7 @@ int32_t tmqCommitMsgImpl(tmq_t* tmq, const TAOS_RES* msg, int8_t async, tmq_comm
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
+
   pParamSet->refId = tmq->refId;
   pParamSet->epoch = tmq->epoch;
   pParamSet->automatic = 0;
@@ -582,15 +576,22 @@ int32_t tmqCommitMsgImpl(tmq_t* tmq, const TAOS_RES* msg, int8_t async, tmq_comm
 
   int32_t code = -1;
 
+  taosThreadMutexLock(&tmq->lock);
   for (int32_t i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
     SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
-    if (strcmp(pTopic->topicName, topic) != 0) continue;
-    for (int32_t j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
+    if (strcmp(pTopic->topicName, topic) != 0) {
+      continue;
+    }
+
+    int32_t numOfVgroups = taosArrayGetSize(pTopic->vgs);
+    for (int32_t j = 0; j < numOfVgroups; j++) {
       SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
-      if (pVg->vgId != vgId) continue;
+      if (pVg->vgId != vgId) {
+        continue;
+      }
 
       if (pVg->currentOffset.type > 0 && !tOffsetEqual(&pVg->currentOffset, &pVg->committedOffset)) {
-        if (tmqSendCommitReq(tmq, pVg, pTopic, pParamSet) < 0) {
+        if (doSendCommitMsg(tmq, pVg, pTopic->topicName, pParamSet, j, numOfVgroups) < 0) {
           tsem_destroy(&pParamSet->rspSem);
           taosMemoryFree(pParamSet);
           goto FAIL;
@@ -604,10 +605,12 @@ HANDLE_RSP:
   if (pParamSet->totalRspNum == 0) {
     tsem_destroy(&pParamSet->rspSem);
     taosMemoryFree(pParamSet);
+    taosThreadMutexUnlock(&tmq->lock);
     return 0;
   }
 
   if (!async) {
+    taosThreadMutexUnlock(&tmq->lock);
     tsem_wait(&pParamSet->rspSem);
     code = pParamSet->rspErr;
     tsem_destroy(&pParamSet->rspSem);
@@ -618,13 +621,15 @@ HANDLE_RSP:
   }
 
 FAIL:
+  taosThreadMutexUnlock(&tmq->lock);
   if (code != 0 && async) {
     userCb(tmq, code, userParam);
   }
+
   return 0;
 }
 
-static int32_t tmqCommitConsumerImpl(tmq_t* tmq, int8_t automatic, int8_t async, tmq_commit_cb* userCb,
+static int32_t doAutoCommit(tmq_t* tmq, int8_t automatic, int8_t async, tmq_commit_cb* userCb,
                                      void* userParam) {
   int32_t code = -1;
 
@@ -653,26 +658,41 @@ static int32_t tmqCommitConsumerImpl(tmq_t* tmq, int8_t automatic, int8_t async,
   // init as 1 to prevent concurrency issue
   pParamSet->waitingRspNum = 1;
 
+  taosThreadMutexLock(&tmq->lock);
   int32_t numOfTopics = taosArrayGetSize(tmq->clientTopics);
   tscDebug("consumer:0x%" PRIx64 " start to commit offset for %d topics", tmq->consumerId, numOfTopics);
 
   for (int32_t i = 0; i < numOfTopics; i++) {
     SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
+    int32_t         numOfVgroups = taosArrayGetSize(pTopic->vgs);
 
-    int32_t numOfVgroups = taosArrayGetSize(pTopic->vgs);
+    tscDebug("consumer:0x%" PRIx64 " commit offset for topics:%s, numOfVgs:%d", tmq->consumerId, pTopic->topicName,
+             numOfVgroups);
     for (int32_t j = 0; j < numOfVgroups; j++) {
       SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
+
       if (pVg->currentOffset.type > 0 && !tOffsetEqual(&pVg->currentOffset, &pVg->committedOffset)) {
-        if (tmqSendCommitReq(tmq, pVg, pTopic, pParamSet) < 0) {
+        code = doSendCommitMsg(tmq, pVg, pTopic->topicName, pParamSet, j, numOfVgroups);
+        if (code != TSDB_CODE_SUCCESS) {
+          tscError("consumer:0x%" PRIx64 " topic:%s vgId:%d offset:%" PRId64 " failed, code:%s ordinal:%d/%d",
+                   tmq->consumerId, pTopic->topicName, pVg->vgId, pVg->committedOffset.version, tstrerror(terrno),
+                   j + 1, numOfVgroups);
           continue;
         }
+
+        // update the offset value.
+        pVg->committedOffset = pVg->currentOffset;
       } else {
-        tscDebug("consumer:0x%" PRIx64 " topic:%s vgId:%d, not commit, current:%" PRId64 ", ordinal:%d/%d",
+        tscDebug("consumer:0x%" PRIx64 " topic:%s vgId:%d, no commit, current:%" PRId64 ", ordinal:%d/%d",
                  tmq->consumerId, pTopic->topicName, pVg->vgId, pVg->currentOffset.version, j + 1, numOfVgroups);
       }
     }
   }
 
+  tscDebug("consumer:0x%" PRIx64 " total commit:%d for %d topics", tmq->consumerId, pParamSet->waitingRspNum - 1,
+           numOfTopics);
+  taosThreadMutexUnlock(&tmq->lock);
+
   // no request is sent
   if (pParamSet->totalRspNum == 0) {
     tsem_destroy(&pParamSet->rspSem);
@@ -681,7 +701,7 @@ static int32_t tmqCommitConsumerImpl(tmq_t* tmq, int8_t automatic, int8_t async,
   }
 
   // count down since waiting rsp num init as 1
-  tmqCommitRspCountDown(pParamSet);
+  tmqCommitRspCountDown(pParamSet, tmq->consumerId, "", 0);
 
   if (!async) {
     tsem_wait(&pParamSet->rspSem);
@@ -697,36 +717,34 @@ static int32_t tmqCommitConsumerImpl(tmq_t* tmq, int8_t automatic, int8_t async,
   return code;
 }
 
-int32_t tmqCommitInner(tmq_t* tmq, const TAOS_RES* msg, int8_t automatic, int8_t async, tmq_commit_cb* userCb,
-                       void* userParam) {
-  if (msg) {
+static int32_t tmqCommitInner(tmq_t* tmq, const TAOS_RES* msg, int8_t automatic, int8_t async, tmq_commit_cb* userCb,
+                              void* userParam) {
+  if (msg) { // user invoked commit
     return tmqCommitMsgImpl(tmq, msg, async, userCb, userParam);
-  } else {
-    return tmqCommitConsumerImpl(tmq, automatic, async, userCb, userParam);
+  } else {  // this for auto commit
+    return doAutoCommit(tmq, automatic, async, userCb, userParam);
+  }
+}
+
+static void generateTimedTask(int64_t refId, int32_t type) {
+  tmq_t* tmq = taosAcquireRef(tmqMgmt.rsetId, refId);
+  if (tmq != NULL) {
+    int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM, 0);
+    *pTaskType = type;
+    taosWriteQitem(tmq->delayedTask, pTaskType);
+    tsem_post(&tmq->rspSem);
   }
 }
 
 void tmqAssignAskEpTask(void* param, void* tmrId) {
   int64_t refId = *(int64_t*)param;
-  tmq_t*  tmq = taosAcquireRef(tmqMgmt.rsetId, refId);
-  if (tmq != NULL) {
-    int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM, 0);
-    *pTaskType = TMQ_DELAYED_TASK__ASK_EP;
-    taosWriteQitem(tmq->delayedTask, pTaskType);
-    tsem_post(&tmq->rspSem);
-  }
+  generateTimedTask(refId, TMQ_DELAYED_TASK__ASK_EP);
   taosMemoryFree(param);
 }
 
 void tmqAssignDelayedCommitTask(void* param, void* tmrId) {
   int64_t refId = *(int64_t*)param;
-  tmq_t*  tmq = taosAcquireRef(tmqMgmt.rsetId, refId);
-  if (tmq != NULL) {
-    int8_t* pTaskType = taosAllocateQitem(sizeof(int8_t), DEF_QITEM, 0);
-    *pTaskType = TMQ_DELAYED_TASK__COMMIT;
-    taosWriteQitem(tmq->delayedTask, pTaskType);
-    tsem_post(&tmq->rspSem);
-  }
+  generateTimedTask(refId, TMQ_DELAYED_TASK__COMMIT);
   taosMemoryFree(param);
 }
 
@@ -854,15 +872,21 @@ static void tmqFreeRspWrapper(SMqRspWrapper* rspWrapper) {
     tDeleteSMqAskEpRsp(&pEpRspWrapper->msg);
   } else if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__POLL_RSP) {
     SMqPollRspWrapper* pRsp = (SMqPollRspWrapper*)rspWrapper;
+    taosMemoryFreeClear(pRsp->pEpset);
+
     taosArrayDestroyP(pRsp->dataRsp.blockData, taosMemoryFree);
     taosArrayDestroy(pRsp->dataRsp.blockDataLen);
     taosArrayDestroyP(pRsp->dataRsp.blockTbName, taosMemoryFree);
     taosArrayDestroyP(pRsp->dataRsp.blockSchema, (FDelete)tDeleteSSchemaWrapper);
   } else if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__POLL_META_RSP) {
     SMqPollRspWrapper* pRsp = (SMqPollRspWrapper*)rspWrapper;
+    taosMemoryFreeClear(pRsp->pEpset);
+
     taosMemoryFree(pRsp->metaRsp.metaRsp);
   } else if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__TAOSX_RSP) {
     SMqPollRspWrapper* pRsp = (SMqPollRspWrapper*)rspWrapper;
+    taosMemoryFreeClear(pRsp->pEpset);
+
     taosArrayDestroyP(pRsp->taosxRsp.blockData, taosMemoryFree);
     taosArrayDestroy(pRsp->taosxRsp.blockDataLen);
     taosArrayDestroyP(pRsp->taosxRsp.blockTbName, taosMemoryFree);
@@ -944,10 +968,14 @@ void tmqFreeImpl(void* handle) {
     tmqClearUnhandleMsg(tmq);
     taosCloseQueue(tmq->mqueue);
   }
-  if (tmq->delayedTask) taosCloseQueue(tmq->delayedTask);
-  taosFreeQall(tmq->qall);
 
+  if (tmq->delayedTask) {
+    taosCloseQueue(tmq->delayedTask);
+  }
+
+  taosFreeQall(tmq->qall);
   tsem_destroy(&tmq->rspSem);
+  taosThreadMutexDestroy(&tmq->lock);
 
   int32_t sz = taosArrayGetSize(tmq->clientTopics);
   for (int32_t i = 0; i < sz; i++) {
@@ -955,6 +983,7 @@ void tmqFreeImpl(void* handle) {
     taosMemoryFreeClear(pTopic->schema.pSchema);
     taosArrayDestroy(pTopic->vgs);
   }
+
   taosArrayDestroy(tmq->clientTopics);
   taos_close_internal(tmq->pTscObj);
   taosMemoryFree(tmq);
@@ -984,7 +1013,7 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
   tmq_t* pTmq = taosMemoryCalloc(1, sizeof(tmq_t));
   if (pTmq == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
-    tscError("failed to create consumer, consumer group %s, code:%s", conf->groupId, terrstr());
+    tscError("failed to create consumer, groupId:%s, code:%s", conf->groupId, terrstr());
     return NULL;
   }
 
@@ -993,15 +1022,16 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
 
   pTmq->clientTopics = taosArrayInit(0, sizeof(SMqClientTopic));
   pTmq->mqueue = taosOpenQueue();
-  pTmq->qall = taosAllocateQall();
   pTmq->delayedTask = taosOpenQueue();
+  pTmq->qall = taosAllocateQall();
 
+  taosThreadMutexInit(&pTmq->lock, NULL);
   if (pTmq->clientTopics == NULL || pTmq->mqueue == NULL || pTmq->qall == NULL || pTmq->delayedTask == NULL ||
       conf->groupId[0] == 0) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
-    tscError("consumer:0x%" PRIx64 " setup failed since %s, consumer group %s", pTmq->consumerId, terrstr(),
+    tscError("consumer:0x%" PRIx64 " setup failed since %s, groupId:%s", pTmq->consumerId, terrstr(),
              pTmq->groupId);
-    goto FAIL;
+    goto _failed;
   }
 
   // init status
@@ -1031,22 +1061,20 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
   if (tsem_init(&pTmq->rspSem, 0, 0) != 0) {
     tscError("consumer:0x %" PRIx64 " setup failed since %s, consumer group %s", pTmq->consumerId, terrstr(),
              pTmq->groupId);
-    goto FAIL;
+    goto _failed;
   }
 
   // init connection
   pTmq->pTscObj = taos_connect_internal(conf->ip, user, pass, NULL, NULL, conf->port, CONN_TYPE__TMQ);
   if (pTmq->pTscObj == NULL) {
-    tscError("consumer:0x %" PRIx64 " setup failed since %s, consumer group %s", pTmq->consumerId, terrstr(),
-             pTmq->groupId);
+    tscError("consumer:0x%" PRIx64 " setup failed since %s, groupId:%s", pTmq->consumerId, terrstr(), pTmq->groupId);
     tsem_destroy(&pTmq->rspSem);
-    goto FAIL;
+    goto _failed;
   }
 
   pTmq->refId = taosAddRef(tmqMgmt.rsetId, pTmq);
   if (pTmq->refId < 0) {
-    tmqFreeImpl(pTmq);
-    return NULL;
+    goto _failed;
   }
 
   if (pTmq->hbBgEnable) {
@@ -1055,16 +1083,17 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
     pTmq->hbLiveTimer = taosTmrStart(tmqSendHbReq, 1000, pRefId, tmqMgmt.timer);
   }
 
-  tscInfo("consumer:0x%" PRIx64 " is setup, groupId:%s", pTmq->consumerId, pTmq->groupId);
+  char         buf[80] = {0};
+  STqOffsetVal offset = {.type = pTmq->resetOffsetCfg};
+  tFormatOffset(buf, tListLen(buf), &offset);
+  tscInfo("consumer:0x%" PRIx64 " is setup, groupId:%s, snapshot:%d, autoCommit:%d, commitInterval:%dms, offset:%s, backgroudHB:%d",
+          pTmq->consumerId, pTmq->groupId, pTmq->useSnapshot, pTmq->autoCommit, pTmq->autoCommitInterval, buf,
+          pTmq->hbBgEnable);
+
   return pTmq;
 
-FAIL:
-  if (pTmq->clientTopics) taosArrayDestroy(pTmq->clientTopics);
-  if (pTmq->mqueue) taosCloseQueue(pTmq->mqueue);
-  if (pTmq->delayedTask) taosCloseQueue(pTmq->delayedTask);
-  if (pTmq->qall) taosFreeQall(pTmq->qall);
-  taosMemoryFree(pTmq);
-
+_failed:
+  tmqFreeImpl(pTmq);
   return NULL;
 }
 
@@ -1193,7 +1222,6 @@ FAIL:
 }
 
 void tmq_conf_set_auto_commit_cb(tmq_conf_t* conf, tmq_commit_cb* cb, void* param) {
-  //
   conf->commitCb = cb;
   conf->commitCbUserParam = param;
 }
@@ -1220,8 +1248,8 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
   taosMemoryFree(pParam);
 
   if (code != 0) {
-    tscWarn("consumer:0x%"PRIx64" msg from vgId:%d discarded, epoch %d, since %s, reqId:0x%"PRIx64, tmq->consumerId, vgId,
-        epoch, tstrerror(code), requestId);
+    tscWarn("consumer:0x%" PRIx64 " msg from vgId:%d discarded, epoch %d, since %s, reqId:0x%" PRIx64, tmq->consumerId,
+            vgId, epoch, tstrerror(code), requestId);
 
     if (pMsg->pData) taosMemoryFree(pMsg->pData);
     if (pMsg->pEpSet) taosMemoryFree(pMsg->pEpSet);
@@ -1240,8 +1268,6 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
       }
 
       pRspWrapper->tmqRspType = TMQ_MSG_TYPE__END_RSP;
-      /*pRspWrapper->vgHandle = pVg;*/
-      /*pRspWrapper->topicHandle = pTopic;*/
       taosWriteQitem(tmq->mqueue, pRspWrapper);
     }
 
@@ -1262,8 +1288,8 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
   }
 
   if (msgEpoch != tmqEpoch) {
-    tscWarn("consumer:0x%"PRIx64" mismatch rsp from vgId:%d, epoch %d, current epoch %d, reqId:0x%"PRIx64, tmq->consumerId, vgId,
-        msgEpoch, tmqEpoch, requestId);
+    tscWarn("consumer:0x%" PRIx64 " mismatch rsp from vgId:%d, epoch %d, current epoch %d, reqId:0x%" PRIx64,
+            tmq->consumerId, vgId, msgEpoch, tmqEpoch, requestId);
   }
 
   // handle meta rsp
@@ -1280,7 +1306,10 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
   pRspWrapper->tmqRspType = rspType;
   pRspWrapper->vgHandle = pVg;
   pRspWrapper->topicHandle = pTopic;
+  pRspWrapper->reqId = requestId;
+  pRspWrapper->pEpset = pMsg->pEpSet;
 
+  pMsg->pEpSet = NULL;
   if (rspType == TMQ_MSG_TYPE__POLL_RSP) {
     SDecoder decoder;
     tDecoderInit(&decoder, POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), pMsg->len - sizeof(SMqRspHead));
@@ -1288,9 +1317,10 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
     tDecoderClear(&decoder);
     memcpy(&pRspWrapper->dataRsp, pMsg->pData, sizeof(SMqRspHead));
 
-    tscDebug("consumer:0x%" PRIx64 " recv poll rsp, vgId:%d, req offset:%" PRId64 ", rsp offset:%" PRId64 " type %d, reqId:0x%"PRIx64,
-             tmq->consumerId, pVg->vgId, pRspWrapper->dataRsp.reqOffset.version, pRspWrapper->dataRsp.rspOffset.version,
-             rspType, requestId);
+    tscDebug("consumer:0x%" PRIx64 " recv poll rsp, vgId:%d, req:%" PRId64 ", rsp:%" PRId64
+             " type %d, reqId:0x%" PRIx64,
+             tmq->consumerId, vgId, pRspWrapper->dataRsp.reqOffset.version, pRspWrapper->dataRsp.rspOffset.version, rspType, requestId);
+
   } else if (rspType == TMQ_MSG_TYPE__POLL_META_RSP) {
     SDecoder decoder;
     tDecoderInit(&decoder, POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), pMsg->len - sizeof(SMqRspHead));
@@ -1303,17 +1333,17 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
     tDecodeSTaosxRsp(&decoder, &pRspWrapper->taosxRsp);
     tDecoderClear(&decoder);
     memcpy(&pRspWrapper->taosxRsp, pMsg->pData, sizeof(SMqRspHead));
+  } else { // invalid rspType
+    tscError("consumer:0x%"PRIx64" invalid rsp msg received, type:%d ignored", tmq->consumerId, rspType);
   }
 
   taosMemoryFree(pMsg->pData);
-  taosMemoryFree(pMsg->pEpSet);
-
-  tscDebug("consumer:0x%" PRIx64 ", put poll res into mqueue, total in queue:%d, reqId:0x%" PRIx64, tmq->consumerId,
-           tmq->mqueue->numOfItems, requestId);
-
   taosWriteQitem(tmq->mqueue, pRspWrapper);
-  tsem_post(&tmq->rspSem);
 
+  tscDebug("consumer:0x%" PRIx64 " put poll res into mqueue, type:%d, vgId:%d, total in queue:%d, reqId:0x%" PRIx64,
+           tmq->consumerId, rspType, vgId, tmq->mqueue->numOfItems, requestId);
+
+  tsem_post(&tmq->rspSem);
   return 0;
 
 CREATE_MSG_FAIL:
@@ -1325,7 +1355,56 @@ CREATE_MSG_FAIL:
   return -1;
 }
 
-bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, const SMqAskEpRsp* pRsp) {
+static void initClientTopicFromRsp(SMqClientTopic* pTopic, SMqSubTopicEp* pTopicEp, SHashObj* pVgOffsetHashMap,
+                                   tmq_t* tmq) {
+  pTopic->schema = pTopicEp->schema;
+  pTopicEp->schema.nCols = 0;
+  pTopicEp->schema.pSchema = NULL;
+
+  char vgKey[TSDB_TOPIC_FNAME_LEN + 22];
+  int32_t vgNumGet = taosArrayGetSize(pTopicEp->vgs);
+
+  tstrncpy(pTopic->topicName, pTopicEp->topic, TSDB_TOPIC_FNAME_LEN);
+  tstrncpy(pTopic->db, pTopicEp->db, TSDB_DB_FNAME_LEN);
+
+  tscDebug("consumer:0x%" PRIx64 ", update topic:%s, numOfVgs:%d", tmq->consumerId, pTopic->topicName, vgNumGet);
+  pTopic->vgs = taosArrayInit(vgNumGet, sizeof(SMqClientVg));
+
+  for (int32_t j = 0; j < vgNumGet; j++) {
+    SMqSubVgEp* pVgEp = taosArrayGet(pTopicEp->vgs, j);
+
+    makeTopicVgroupKey(vgKey, pTopic->topicName, pVgEp->vgId);
+    STqOffsetVal* pOffset = taosHashGet(pVgOffsetHashMap, vgKey, strlen(vgKey));
+
+    STqOffsetVal  offsetNew = {.type = tmq->resetOffsetCfg};
+    if (pOffset != NULL) {
+      offsetNew = *pOffset;
+    }
+
+    SMqClientVg clientVg = {
+        .pollCnt = 0,
+        .currentOffset = offsetNew,
+        .vgId = pVgEp->vgId,
+        .epSet = pVgEp->epSet,
+        .vgStatus = TMQ_VG_STATUS__IDLE,
+        .vgSkipCnt = 0,
+        .emptyBlockReceiveTs = 0,
+    };
+
+    taosArrayPush(pTopic->vgs, &clientVg);
+  }
+}
+
+static void freeClientVgInfo(void* param) {
+  SMqClientTopic* pTopic = param;
+  if (pTopic->schema.nCols) {
+    taosMemoryFreeClear(pTopic->schema.pSchema);
+  }
+
+  taosArrayDestroy(pTopic->vgs);
+}
+
+static bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, const SMqAskEpRsp* pRsp) {
   bool set = false;
 
   int32_t topicNumCur = taosArrayGetSize(tmq->clientTopics);
@@ -1340,12 +1419,13 @@ bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, const SMqAskEpRsp* pRsp) {
     return false;
   }
 
-  SHashObj* pHash = taosHashInit(64, MurmurHash3_32, false, HASH_NO_LOCK);
-  if (pHash == NULL) {
+  SHashObj* pVgOffsetHashMap = taosHashInit(64, MurmurHash3_32, false, HASH_NO_LOCK);
+  if (pVgOffsetHashMap == NULL) {
     taosArrayDestroy(newTopics);
     return false;
   }
 
+  // todo extract method
   for (int32_t i = 0; i < topicNumCur; i++) {
     // find old topic
     SMqClientTopic* pTopicCur = taosArrayGet(tmq->clientTopics, i);
@@ -1354,12 +1434,13 @@ bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, const SMqAskEpRsp* pRsp) {
       tscDebug("consumer:0x%" PRIx64 ", new vg num: %d", tmq->consumerId, vgNumCur);
       for (int32_t j = 0; j < vgNumCur; j++) {
         SMqClientVg* pVgCur = taosArrayGet(pTopicCur->vgs, j);
-        sprintf(vgKey, "%s:%d", pTopicCur->topicName, pVgCur->vgId);
+        makeTopicVgroupKey(vgKey, pTopicCur->topicName, pVgCur->vgId);
+
         char buf[80];
         tFormatOffset(buf, 80, &pVgCur->currentOffset);
         tscDebug("consumer:0x%" PRIx64 ", epoch:%d vgId:%d vgKey:%s, offset:%s", tmq->consumerId, epoch,
                  pVgCur->vgId, vgKey, buf);
-        taosHashPut(pHash, vgKey, strlen(vgKey), &pVgCur->currentOffset, sizeof(STqOffsetVal));
+        taosHashPut(pVgOffsetHashMap, vgKey, strlen(vgKey), &pVgCur->currentOffset, sizeof(STqOffsetVal));
       }
     }
   }
@@ -1367,66 +1448,30 @@ bool tmqUpdateEp(tmq_t* tmq, int32_t epoch, const SMqAskEpRsp* pRsp) {
   for (int32_t i = 0; i < topicNumGet; i++) {
     SMqClientTopic topic = {0};
     SMqSubTopicEp* pTopicEp = taosArrayGet(pRsp->topics, i);
-    topic.schema = pTopicEp->schema;
-    pTopicEp->schema.nCols = 0;
-    pTopicEp->schema.pSchema = NULL;
-    tstrncpy(topic.topicName, pTopicEp->topic, TSDB_TOPIC_FNAME_LEN);
-    tstrncpy(topic.db, pTopicEp->db, TSDB_DB_FNAME_LEN);
-
-    tscDebug("consumer:0x%" PRIx64 ", update topic: %s", tmq->consumerId, topic.topicName);
-
-    int32_t vgNumGet = taosArrayGetSize(pTopicEp->vgs);
-    topic.vgs = taosArrayInit(vgNumGet, sizeof(SMqClientVg));
-    for (int32_t j = 0; j < vgNumGet; j++) {
-      SMqSubVgEp* pVgEp = taosArrayGet(pTopicEp->vgs, j);
-      sprintf(vgKey, "%s:%d", topic.topicName, pVgEp->vgId);
-      STqOffsetVal* pOffset = taosHashGet(pHash, vgKey, strlen(vgKey));
-      STqOffsetVal  offsetNew = {.type = tmq->resetOffsetCfg};
-      if (pOffset != NULL) {
-        offsetNew = *pOffset;
-      }
-
-      SMqClientVg clientVg = {
-          .pollCnt = 0,
-          .currentOffset = offsetNew,
-          .vgId = pVgEp->vgId,
-          .epSet = pVgEp->epSet,
-          .vgStatus = TMQ_VG_STATUS__IDLE,
-          .vgSkipCnt = 0,
-      };
-      taosArrayPush(topic.vgs, &clientVg);
-      set = true;
-    }
+    initClientTopicFromRsp(&topic, pTopicEp, pVgOffsetHashMap, tmq);
     taosArrayPush(newTopics, &topic);
   }
 
+  taosHashCleanup(pVgOffsetHashMap);
+
+  taosThreadMutexLock(&tmq->lock);
   // destroy current buffered existed topics info
   if (tmq->clientTopics) {
-    int32_t sz = taosArrayGetSize(tmq->clientTopics);
-    for (int32_t i = 0; i < sz; i++) {
-      SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
-      if (pTopic->schema.nCols) taosMemoryFreeClear(pTopic->schema.pSchema);
-      taosArrayDestroy(pTopic->vgs);
-    }
-
-    taosArrayDestroy(tmq->clientTopics);
+    taosArrayDestroyEx(tmq->clientTopics, freeClientVgInfo);
   }
 
-  taosHashCleanup(pHash);
   tmq->clientTopics = newTopics;
+  taosThreadMutexUnlock(&tmq->lock);
 
-  if (taosArrayGetSize(tmq->clientTopics) == 0) {
-    atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__NO_TOPIC);
-  } else {
-    atomic_store_8(&tmq->status, TMQ_CONSUMER_STATUS__READY);
-  }
-
+  int8_t flag = (topicNumGet == 0)? TMQ_CONSUMER_STATUS__NO_TOPIC:TMQ_CONSUMER_STATUS__READY;
+  atomic_store_8(&tmq->status, flag);
   atomic_store_32(&tmq->epoch, epoch);
+
   tscDebug("consumer:0x%" PRIx64 " update topic info completed", tmq->consumerId);
   return set;
 }
 
-int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
+static int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
   SMqAskEpCbParam* pParam = (SMqAskEpCbParam*)param;
   int8_t           async = pParam->async;
   tmq_t*           tmq = taosAcquireRef(tmqMgmt.rsetId, pParam->refId);
@@ -1444,7 +1489,7 @@ int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
   }
 
   pParam->code = code;
-  if (code != 0) {
+  if (code != TSDB_CODE_SUCCESS) {
     tscError("consumer:0x%" PRIx64 ", get topic endpoint error, async:%d, code:%s", tmq->consumerId, pParam->async,
              tstrerror(code));
     goto END;
@@ -1458,6 +1503,14 @@ int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
   if (head->epoch <= epoch) {
     tscDebug("consumer:0x%" PRIx64 ", recv ep, msg epoch %d, current epoch %d, no need to update local ep",
              tmq->consumerId, head->epoch, epoch);
+    if (tmq->status == TMQ_CONSUMER_STATUS__RECOVER) {
+      SMqAskEpRsp rsp;
+      tDecodeSMqAskEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &rsp);
+      int8_t flag = (taosArrayGetSize(rsp.topics) == 0) ? TMQ_CONSUMER_STATUS__NO_TOPIC : TMQ_CONSUMER_STATUS__READY;
+      atomic_store_8(&tmq->status, flag);
+      tDeleteSMqAskEpRsp(&rsp);
+    }
+
     goto END;
   }
 
@@ -1467,8 +1520,6 @@ int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
   if (!async) {
     SMqAskEpRsp rsp;
     tDecodeSMqAskEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &rsp);
-    /*printf("rsp epoch %" PRId64 " sz %" PRId64 "\n", rsp.epoch, rsp.topics->size);*/
-    /*printf("tmq epoch %" PRId64 " sz %" PRId64 "\n", tmq->epoch, tmq->clientTopics->size);*/
     tmqUpdateEp(tmq, head->epoch, &rsp);
     tDeleteSMqAskEpRsp(&rsp);
   } else {
@@ -1489,7 +1540,6 @@ int32_t tmqAskEpCb(void* param, SDataBuf* pMsg, int32_t code) {
   }
 
 END:
-  /*atomic_store_8(&tmq->epStatus, 0);*/
   if (!async) {
     tsem_post(&pParam->rspSem);
   } else {
@@ -1501,92 +1551,6 @@ END:
   return code;
 }
 
-int32_t tmqAskEp(tmq_t* tmq, bool async) {
-  int32_t code = TSDB_CODE_SUCCESS;
-#if 0
-  int8_t  epStatus = atomic_val_compare_exchange_8(&tmq->epStatus, 0, 1);
-  if (epStatus == 1) {
-    int32_t epSkipCnt = atomic_add_fetch_32(&tmq->epSkipCnt, 1);
-    tscTrace("consumer:0x%" PRIx64 ", skip ask ep cnt %d", tmq->consumerId, epSkipCnt);
-    if (epSkipCnt < 5000) return 0;
-  }
-  atomic_store_32(&tmq->epSkipCnt, 0);
-#endif
-
-  SMqAskEpReq req = {0};
-  req.consumerId = tmq->consumerId;
-  req.epoch = tmq->epoch;
-  strcpy(req.cgroup, tmq->groupId);
-
-  int32_t tlen = tSerializeSMqAskEpReq(NULL, 0, &req);
-  if (tlen < 0) {
-    tscError("consumer:0x%" PRIx64 ", tSerializeSMqAskEpReq failed", tmq->consumerId);
-    return -1;
-  }
-
-  void* pReq = taosMemoryCalloc(1, tlen);
-  if (pReq == NULL) {
-    tscError("consumer:0x%" PRIx64 ", failed to malloc askEpReq msg, size:%d", tmq->consumerId, tlen);
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return -1;
-  }
-
-  if (tSerializeSMqAskEpReq(pReq, tlen, &req) < 0) {
-    tscError("consumer:0x%" PRIx64 ", tSerializeSMqAskEpReq %d failed", tmq->consumerId, tlen);
-    taosMemoryFree(pReq);
-    return -1;
-  }
-
-  SMqAskEpCbParam* pParam = taosMemoryCalloc(1, sizeof(SMqAskEpCbParam));
-  if (pParam == NULL) {
-    tscError("consumer:0x%" PRIx64 ", failed to malloc subscribe param", tmq->consumerId);
-    taosMemoryFree(pReq);
-    /*atomic_store_8(&tmq->epStatus, 0);*/
-    return -1;
-  }
-
-  pParam->refId = tmq->refId;
-  pParam->epoch = tmq->epoch;
-  pParam->async = async;
-  tsem_init(&pParam->rspSem, 0, 0);
-
-  SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
-  if (sendInfo == NULL) {
-    tsem_destroy(&pParam->rspSem);
-    taosMemoryFree(pParam);
-    taosMemoryFree(pReq);
-    /*atomic_store_8(&tmq->epStatus, 0);*/
-    return -1;
-  }
-
-  sendInfo->msgInfo = (SDataBuf){
-      .pData = pReq,
-      .len = tlen,
-      .handle = NULL,
-  };
-
-  sendInfo->requestId = generateRequestId();
-  sendInfo->requestObjRefId = 0;
-  sendInfo->param = pParam;
-  sendInfo->fp = tmqAskEpCb;
-  sendInfo->msgType = TDMT_MND_TMQ_ASK_EP;
-
-  SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
-  tscDebug("consumer:0x%" PRIx64 " ask ep from mnode, async:%d, reqId:0x%" PRIx64, tmq->consumerId, async,
-           sendInfo->requestId);
-
-  int64_t transporterId = 0;
-  asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
-
-  if (!async) {
-    tsem_wait(&pParam->rspSem);
-    code = pParam->code;
-    taosMemoryFree(pParam);
-  }
-
-  return code;
-}
-
 void tmqBuildConsumeReqImpl(SMqPollReq* pReq, tmq_t* tmq, int64_t timeout, SMqClientTopic* pTopic, SMqClientVg* pVg) {
   int32_t groupLen = strlen(tmq->groupId);
   memcpy(pReq->subKey, tmq->groupId, groupLen);
@@ -1618,14 +1582,17 @@ SMqMetaRspObj* tmqBuildMetaRspFromWrapper(SMqPollRspWrapper* pWrapper) {
 SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
   SMqRspObj* pRspObj = taosMemoryCalloc(1, sizeof(SMqRspObj));
   pRspObj->resType = RES_TYPE__TMQ;
+
   tstrncpy(pRspObj->topic, pWrapper->topicHandle->topicName, TSDB_TOPIC_FNAME_LEN);
   tstrncpy(pRspObj->db, pWrapper->topicHandle->db, TSDB_DB_FNAME_LEN);
+
   pRspObj->vgId = pWrapper->vgHandle->vgId;
   pRspObj->resIter = -1;
   memcpy(&pRspObj->rsp, &pWrapper->dataRsp, sizeof(SMqDataRsp));
 
   pRspObj->resInfo.totalRows = 0;
   pRspObj->resInfo.precision = TSDB_TIME_PRECISION_MILLI;
+
   if (!pWrapper->dataRsp.withSchema) {
     setResSchemaInfo(&pRspObj->resInfo, pWrapper->topicHandle->schema.pSchema, pWrapper->topicHandle->schema.nCols);
   }
@@ -1723,7 +1690,7 @@ static int32_t doTmqPollImpl(tmq_t* pTmq, SMqClientTopic* pTopic, SMqClientVg* p
 }
 
 // broadcast the poll request to all related vnodes
-int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
+static int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
   int32_t numOfTopics = taosArrayGetSize(tmq->clientTopics);
   tscDebug("consumer:0x%" PRIx64 " start to poll data, numOfTopics:%d", tmq->consumerId, numOfTopics);
 
@@ -1733,7 +1700,13 @@ int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
 
     for (int j = 0; j < numOfVg; j++) {
       SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
-      int32_t      vgStatus = atomic_val_compare_exchange_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE, TMQ_VG_STATUS__WAIT);
+      if (taosGetTimestampMs() - pVg->emptyBlockReceiveTs < EMPTY_BLOCK_POLL_IDLE_DURATION) { // less than 100ms
+        tscTrace("consumer:0x%" PRIx64 " epoch %d, vgId:%d idle for 100ms before start next poll", tmq->consumerId, tmq->epoch,
+                 pVg->vgId);
+        continue;
+      }
+
+      int32_t vgStatus = atomic_val_compare_exchange_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE, TMQ_VG_STATUS__WAIT);
       if (vgStatus == TMQ_VG_STATUS__WAIT) {
         int32_t vgSkipCnt = atomic_add_fetch_32(&pVg->vgSkipCnt, 1);
         tscTrace("consumer:0x%" PRIx64 " epoch %d wait poll-rsp, skip vgId:%d skip cnt %d", tmq->consumerId, tmq->epoch,
@@ -1756,10 +1729,11 @@ int32_t tmqPollImpl(tmq_t* tmq, int64_t timeout) {
     }
   }
 
+  tscDebug("consumer:0x%" PRIx64 " end to poll data", tmq->consumerId);
   return 0;
 }
 
-int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspWrapper* rspWrapper, bool* pReset) {
+static int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspWrapper* rspWrapper, bool* pReset) {
   if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__EP_RSP) {
     /*printf("ep %d %d\n", rspMsg->head.epoch, tmq->epoch);*/
     if (rspWrapper->epoch > atomic_load_32(&tmq->epoch)) {
@@ -1779,7 +1753,7 @@ int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspWrapper* rspWrapper, bool* pReset)
   return 0;
 }
 
-void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
+static void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
   tscDebug("consumer:0x%" PRIx64 " start to handle the rsp, total:%d", tmq->consumerId, tmq->qall->numOfItems);
 
   while (1) {
@@ -1795,6 +1769,8 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
       }
     }
 
+    tscDebug("consumer:0x%"PRIx64" handle rsp, type:%d", tmq->consumerId, rspWrapper->tmqRspType);
+
     if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__END_RSP) {
       taosFreeQitem(rspWrapper);
       terrno = TSDB_CODE_TQ_NO_COMMITTED_OFFSET;
@@ -1805,30 +1781,43 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
 
       /*atomic_sub_fetch_32(&tmq->readyRequest, 1);*/
       int32_t consumerEpoch = atomic_load_32(&tmq->epoch);
-      if (pollRspWrapper->dataRsp.head.epoch == consumerEpoch) {
+      SMqDataRsp* pDataRsp = &pollRspWrapper->dataRsp;
+
+      if (pDataRsp->head.epoch == consumerEpoch) {
+        // todo fix it: race condition
         SMqClientVg* pVg = pollRspWrapper->vgHandle;
-        pVg->currentOffset = pollRspWrapper->dataRsp.rspOffset;
+
+        // update the epset
+        if (pollRspWrapper->pEpset != NULL) {
+          SEp* pEp = GET_ACTIVE_EP(pollRspWrapper->pEpset);
+          SEp* pOld = GET_ACTIVE_EP(&(pVg->epSet));
+          tscDebug("consumer:0x%" PRIx64 " update epset vgId:%d, ep:%s:%d, old ep:%s:%d", tmq->consumerId,
+                   pVg->vgId, pEp->fqdn, pEp->port, pOld->fqdn, pOld->port);
+          pVg->epSet = *pollRspWrapper->pEpset;
+        }
+
+        pVg->currentOffset = pDataRsp->rspOffset;
         atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
 
-        if (pollRspWrapper->dataRsp.blockNum == 0) {
-          tscDebug("consumer:0x%" PRIx64 " empty block received, vgId:%d", tmq->consumerId, pVg->vgId);
+        char buf[80];
+        tFormatOffset(buf, 80, &pDataRsp->rspOffset);
+        if (pDataRsp->blockNum == 0) {
+          tscDebug("consumer:0x%" PRIx64 " empty block received, vgId:%d, offset:%s, reqId:0x%" PRIx64, tmq->consumerId,
+                   pVg->vgId, buf, pollRspWrapper->reqId);
           taosFreeQitem(pollRspWrapper);
           rspWrapper = NULL;
           continue;
+        } else {  // build rsp
+          SMqRspObj* pRsp = tmqBuildRspFromWrapper(pollRspWrapper);
+          tscDebug("consumer:0x%" PRIx64 " process poll rsp, vgId:%d, offset:%s, blocks:%d, reqId:0x%" PRIx64,
+                   tmq->consumerId, pVg->vgId, buf, pDataRsp->blockNum, pollRspWrapper->reqId);
+
+          taosFreeQitem(pollRspWrapper);
+          return pRsp;
         }
-
-        // build rsp
-        char buf[80];
-        tFormatOffset(buf, 80, &pVg->currentOffset);
-        SMqRspObj* pRsp = tmqBuildRspFromWrapper(pollRspWrapper);
-        tscDebug("consumer:0x%" PRIx64 " process poll rsp, vgId:%d, offset:%s, blocks:%d", tmq->consumerId,
-                     pVg->vgId, buf, pollRspWrapper->dataRsp.blockNum);
-
-        taosFreeQitem(pollRspWrapper);
-        return pRsp;
       } else {
         tscDebug("consumer:0x%" PRIx64 " msg discard since epoch mismatch: msg epoch %d, consumer epoch %d",
-                 tmq->consumerId, pollRspWrapper->dataRsp.head.epoch, consumerEpoch);
+                 tmq->consumerId, pDataRsp->head.epoch, consumerEpoch);
         tmqFreeRspWrapper(rspWrapper);
         taosFreeQitem(pollRspWrapper);
       }
@@ -1840,8 +1829,6 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
 
       if (pollRspWrapper->metaRsp.head.epoch == consumerEpoch) {
         SMqClientVg* pVg = pollRspWrapper->vgHandle;
-        /*printf("vgId:%d, offset %" PRId64 " up to %" PRId64 "\n", pVg->vgId, pVg->currentOffset,
-         * rspMsg->msg.rspOffset);*/
         pVg->currentOffset = pollRspWrapper->metaRsp.rspOffset;
         atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
         // build rsp
@@ -1856,18 +1843,22 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
       }
     } else if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__TAOSX_RSP) {
       SMqPollRspWrapper* pollRspWrapper = (SMqPollRspWrapper*)rspWrapper;
-      /*atomic_sub_fetch_32(&tmq->readyRequest, 1);*/
       int32_t consumerEpoch = atomic_load_32(&tmq->epoch);
+
       if (pollRspWrapper->taosxRsp.head.epoch == consumerEpoch) {
         SMqClientVg* pVg = pollRspWrapper->vgHandle;
-        /*printf("vgId:%d, offset %" PRId64 " up to %" PRId64 "\n", pVg->vgId, pVg->currentOffset,
-         * rspMsg->msg.rspOffset);*/
         pVg->currentOffset = pollRspWrapper->taosxRsp.rspOffset;
         atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
+
         if (pollRspWrapper->taosxRsp.blockNum == 0) {
-          taosFreeQitem(pollRspWrapper);
           rspWrapper = NULL;
+          tscDebug("consumer:0x%" PRIx64 " taosx empty block received, vgId:%d, reqId:0x%" PRIx64, tmq->consumerId, pVg->vgId,
+                   pollRspWrapper->reqId);
+          pVg->emptyBlockReceiveTs = taosGetTimestampMs();
+          taosFreeQitem(pollRspWrapper);
           continue;
+        } else {
+          pVg->emptyBlockReceiveTs = 0; // reset the ts
         }
 
         // build rsp
@@ -1877,8 +1868,16 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
         } else {
           pRsp = tmqBuildTaosxRspFromWrapper(pollRspWrapper);
         }
+
+
+        char buf[80];
+        tFormatOffset(buf, 80, &pVg->currentOffset);
+        tscDebug("consumer:0x%" PRIx64 " process taosx poll rsp, vgId:%d, offset:%s, blocks:%d, reqId:0x%"PRIx64, tmq->consumerId, pVg->vgId,
+                 buf, pollRspWrapper->dataRsp.blockNum, pollRspWrapper->reqId);
+
         taosFreeQitem(pollRspWrapper);
         return pRsp;
+
       } else {
         tscDebug("consumer:0x%" PRIx64 " msg discard since epoch mismatch: msg epoch %d, consumer epoch %d",
                  tmq->consumerId, pollRspWrapper->taosxRsp.head.epoch, consumerEpoch);
@@ -1886,7 +1885,8 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
         taosFreeQitem(pollRspWrapper);
       }
     } else {
-      /*printf("handle ep rsp %d\n", rspMsg->head.mqMsgType);*/
+      tscDebug("consumer:0x%" PRIx64 " not data msg received", tmq->consumerId);
+
       bool reset = false;
       tmqHandleNoPollRsp(tmq, rspWrapper, &reset);
       taosFreeQitem(rspWrapper);
@@ -1896,8 +1896,6 @@ void* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
       }
     }
   }
-
-  tscDebug("consumer:0x%" PRIx64 " handle the rsp completed", tmq->consumerId);
 }
 
 TAOS_RES* tmq_consumer_poll(tmq_t* tmq, int64_t timeout) {
@@ -1951,7 +1949,7 @@ TAOS_RES* tmq_consumer_poll(tmq_t* tmq, int64_t timeout) {
       return NULL;
     }
 
-    if (timeout != -1) {
+    if (timeout >= 0) {
       int64_t currentTime = taosGetTimestampMs();
       int64_t elapsedTime = currentTime - startTime;
       if (elapsedTime > timeout) {
@@ -1991,6 +1989,7 @@ int32_t tmq_consumer_close(tmq_t* tmq) {
 
     tmq_list_destroy(lst);
   }
+
   taosRemoveRef(tmqMgmt.rsetId, tmq->refId);
   return 0;
 }
@@ -2082,11 +2081,141 @@ const char* tmq_get_table_name(TAOS_RES* res) {
 }
 
 void tmq_commit_async(tmq_t* tmq, const TAOS_RES* msg, tmq_commit_cb* cb, void* param) {
-  //
   tmqCommitInner(tmq, msg, 0, 1, cb, param);
 }
 
 int32_t tmq_commit_sync(tmq_t* tmq, const TAOS_RES* msg) {
-  //
   return tmqCommitInner(tmq, msg, 0, 0, NULL, NULL);
 }
+
+int32_t tmqAskEp(tmq_t* tmq, bool async) {
+  int32_t code = TSDB_CODE_SUCCESS;
+#if 0
+  int8_t  epStatus = atomic_val_compare_exchange_8(&tmq->epStatus, 0, 1);
+  if (epStatus == 1) {
+    int32_t epSkipCnt = atomic_add_fetch_32(&tmq->epSkipCnt, 1);
+    tscTrace("consumer:0x%" PRIx64 ", skip ask ep cnt %d", tmq->consumerId, epSkipCnt);
+    if (epSkipCnt < 5000) return 0;
+  }
+  atomic_store_32(&tmq->epSkipCnt, 0);
+#endif
+
+  SMqAskEpReq req = {0};
+  req.consumerId = tmq->consumerId;
+  req.epoch = tmq->epoch;
+  strcpy(req.cgroup, tmq->groupId);
+
+  int32_t tlen = tSerializeSMqAskEpReq(NULL, 0, &req);
+  if (tlen < 0) {
+    tscError("consumer:0x%" PRIx64 ", tSerializeSMqAskEpReq failed", tmq->consumerId);
+    return -1;
+  }
+
+  void* pReq = taosMemoryCalloc(1, tlen);
+  if (pReq == NULL) {
+    tscError("consumer:0x%" PRIx64 ", failed to malloc askEpReq msg, size:%d", tmq->consumerId, tlen);
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  if (tSerializeSMqAskEpReq(pReq, tlen, &req) < 0) {
+    tscError("consumer:0x%" PRIx64 ", tSerializeSMqAskEpReq %d failed", tmq->consumerId, tlen);
+    taosMemoryFree(pReq);
+    return -1;
+  }
+
+  SMqAskEpCbParam* pParam = taosMemoryCalloc(1, sizeof(SMqAskEpCbParam));
+  if (pParam == NULL) {
+    tscError("consumer:0x%" PRIx64 ", failed to malloc subscribe param", tmq->consumerId);
+    taosMemoryFree(pReq);
+    return -1;
+  }
+
+  pParam->refId = tmq->refId;
+  pParam->epoch = tmq->epoch;
+  pParam->async = async;
+  tsem_init(&pParam->rspSem, 0, 0);
+
+  SMsgSendInfo* sendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
+  if (sendInfo == NULL) {
+    tsem_destroy(&pParam->rspSem);
+    taosMemoryFree(pParam);
+    taosMemoryFree(pReq);
+    return -1;
+  }
+
+  sendInfo->msgInfo = (SDataBuf){
+      .pData = pReq,
+      .len = tlen,
+      .handle = NULL,
+  };
+
+  sendInfo->requestId = generateRequestId();
+  sendInfo->requestObjRefId = 0;
+  sendInfo->param = pParam;
+  sendInfo->fp = tmqAskEpCb;
+  sendInfo->msgType = TDMT_MND_TMQ_ASK_EP;
+
+  SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
+  tscDebug("consumer:0x%" PRIx64 " ask ep from mnode, async:%d, reqId:0x%" PRIx64, tmq->consumerId, async,
+           sendInfo->requestId);
+
+  int64_t transporterId = 0;
+  asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
+
+  if (!async) {
+    tsem_wait(&pParam->rspSem);
+    code = pParam->code;
+    taosMemoryFree(pParam);
+  }
+
+  return code;
+}
+
+int32_t makeTopicVgroupKey(char* dst, const char* topicName, int32_t vg) {
+  return sprintf(dst, "%s:%d", topicName, vg);
+}
+
+int32_t tmqCommitDone(SMqCommitCbParamSet* pParamSet) {
+  tmq_t* tmq = taosAcquireRef(tmqMgmt.rsetId, pParamSet->refId);
+  if (tmq == NULL) {
+    if (!pParamSet->async) {
+      tsem_destroy(&pParamSet->rspSem);
+    }
+    taosMemoryFree(pParamSet);
+    terrno = TSDB_CODE_TMQ_CONSUMER_CLOSED;
+    return -1;
+  }
+
+  // if no more waiting rsp
+  if (pParamSet->async) {
+    // call async cb func
+    if (pParamSet->automatic && tmq->commitCb) {
+      tmq->commitCb(tmq, pParamSet->rspErr, tmq->commitCbUserParam);
+    } else if (!pParamSet->automatic && pParamSet->userCb) { // sem post
+      pParamSet->userCb(tmq, pParamSet->rspErr, pParamSet->userParam);
+    }
+
+    taosMemoryFree(pParamSet);
+  } else {
+    tsem_post(&pParamSet->rspSem);
+  }
+
+#if 0
+  taosArrayDestroyP(pParamSet->successfulOffsets, taosMemoryFree);
+    taosArrayDestroyP(pParamSet->failedOffsets, taosMemoryFree);
+#endif
+  return 0;
+}
+
+void tmqCommitRspCountDown(SMqCommitCbParamSet* pParamSet, int64_t consumerId, const char* pTopic, int32_t vgId) {
+  int32_t waitingRspNum = atomic_sub_fetch_32(&pParamSet->waitingRspNum, 1);
+  if (waitingRspNum == 0) {
+    tscDebug("consumer:0x%" PRIx64 " topic:%s vgId:%d all commit-rsp received, commit completed", consumerId, pTopic,
+             vgId);
+    tmqCommitDone(pParamSet);
+  } else {
+    tscDebug("consumer:0x%" PRIx64 " topic:%s vgId:%d commit-rsp received, remain:%d", consumerId, pTopic, vgId,
+             waitingRspNum);
+  }
+}
diff --git a/source/client/test/clientTests.cpp b/source/client/test/clientTests.cpp
index 2f3d600019..0c7e95f8eb 100644
--- a/source/client/test/clientTests.cpp
+++ b/source/client/test/clientTests.cpp
@@ -898,7 +898,7 @@ TEST(clientCase, update_test) {
   }
 }
 
-TEST(clientCase, subscription_test) {
+TEST(clientCase, sub_db_test) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(pConn, nullptr);
 
@@ -912,7 +912,7 @@ TEST(clientCase, subscription_test) {
   tmq_conf_t* conf = tmq_conf_new();
   tmq_conf_set(conf, "enable.auto.commit", "true");
   tmq_conf_set(conf, "auto.commit.interval.ms", "1000");
-  tmq_conf_set(conf, "group.id", "cgrpName");
+  tmq_conf_set(conf, "group.id", "cgrpNamedb");
   tmq_conf_set(conf, "td.connect.user", "root");
   tmq_conf_set(conf, "td.connect.pass", "taosdata");
   tmq_conf_set(conf, "auto.offset.reset", "earliest");
@@ -925,7 +925,7 @@ TEST(clientCase, subscription_test) {
 
   // 创建订阅 topics 列表
   tmq_list_t* topicList = tmq_list_new();
-//  tmq_list_append(topicList, "topic_t1");
+  tmq_list_append(topicList, "topic_db1");
 
   // 启动订阅
   tmq_subscribe(tmq, topicList);
@@ -954,7 +954,86 @@ TEST(clientCase, subscription_test) {
       printf("db: %s\n", dbName);
       printf("vgroup id: %d\n", vgroupId);
 
-      if (count ++ > 20) {
+      if (count ++ > 200) {
+        tmq_unsubscribe(tmq);
+        break;
+      }
+
+      while (1) {
+        TAOS_ROW row = taos_fetch_row(pRes);
+        if (row == NULL) break;
+
+        fields = taos_fetch_fields(pRes);
+        numOfFields = taos_field_count(pRes);
+        precision = taos_result_precision(pRes);
+        rows++;
+        taos_print_row(buf, row, fields, numOfFields);
+        printf("precision: %d, row content: %s\n", precision, buf);
+      }
+    }
+//      return rows;
+  }
+
+  fprintf(stderr, "%d msg consumed, include %d rows\n", msgCnt, totalRows);
+}
+
+TEST(clientCase, sub_tb_test) {
+  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+  ASSERT_NE(pConn, nullptr);
+
+  //  TAOS_RES* pRes = taos_query(pConn, "create topic topic_t1 as select * from t1");
+  //  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
+  //    printf("failed to create topic, code:%s", taos_errstr(pRes));
+  //    taos_free_result(pRes);
+  //    return;
+  //  }
+
+  tmq_conf_t* conf = tmq_conf_new();
+  tmq_conf_set(conf, "enable.auto.commit", "true");
+  tmq_conf_set(conf, "auto.commit.interval.ms", "1000");
+  tmq_conf_set(conf, "group.id", "cgrpName");
+  tmq_conf_set(conf, "td.connect.user", "root");
+  tmq_conf_set(conf, "td.connect.pass", "taosdata");
+  tmq_conf_set(conf, "auto.offset.reset", "earliest");
+  tmq_conf_set(conf, "experimental.snapshot.enable", "true");
+  tmq_conf_set(conf, "msg.with.table.name", "true");
+  tmq_conf_set_auto_commit_cb(conf, tmq_commit_cb_print, NULL);
+
+  tmq_t* tmq = tmq_consumer_new(conf, NULL, 0);
+  tmq_conf_destroy(conf);
+
+  // 创建订阅 topics 列表
+  tmq_list_t* topicList = tmq_list_new();
+  tmq_list_append(topicList, "topic_t1");
+
+  // 启动订阅
+  tmq_subscribe(tmq, topicList);
+  tmq_list_destroy(topicList);
+
+  TAOS_FIELD* fields = NULL;
+  int32_t     numOfFields = 0;
+  int32_t     precision = 0;
+  int32_t     totalRows = 0;
+  int32_t     msgCnt = 0;
+  int32_t     timeout = 5000;
+
+  int32_t count = 0;
+
+  while (1) {
+    TAOS_RES* pRes = tmq_consumer_poll(tmq, timeout);
+    if (pRes) {
+      char    buf[1024];
+      int32_t rows = 0;
+
+      const char* topicName = tmq_get_topic_name(pRes);
+      const char* dbName = tmq_get_db_name(pRes);
+      int32_t     vgroupId = tmq_get_vgroup_id(pRes);
+
+      printf("topic: %s\n", topicName);
+      printf("db: %s\n", dbName);
+      printf("vgroup id: %d\n", vgroupId);
+
+      if (count ++ > 200) {
         tmq_unsubscribe(tmq);
         break;
       }
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 3c3f3a0260..7a238440a7 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -6639,8 +6639,9 @@ int32_t tFormatOffset(char *buf, int32_t maxLen, const STqOffsetVal *pVal) {
   } else if (pVal->type == TMQ_OFFSET__SNAPSHOT_DATA || pVal->type == TMQ_OFFSET__SNAPSHOT_META) {
     snprintf(buf, maxLen, "offset(snapshot) uid:%" PRId64 " ts:%" PRId64, pVal->uid, pVal->ts);
   } else {
-    ASSERT(0);
+    return TSDB_CODE_INVALID_PARA;
   }
+
   return 0;
 }
 
@@ -6823,8 +6824,7 @@ int32_t tDecodeSMqDataRsp(SDecoder *pDecoder, SMqDataRsp *pRsp) {
 }
 
 void tDeleteSMqDataRsp(SMqDataRsp *pRsp) {
-  taosArrayDestroy(pRsp->blockDataLen);
-  pRsp->blockDataLen = NULL;
+  pRsp->blockDataLen = taosArrayDestroy(pRsp->blockDataLen);;
   taosArrayDestroyP(pRsp->blockData, (FDelete)taosMemoryFree);
   pRsp->blockData = NULL;
   taosArrayDestroyP(pRsp->blockSchema, (FDelete)tDeleteSSchemaWrapper);
diff --git a/source/dnode/mnode/impl/inc/mndConsumer.h b/source/dnode/mnode/impl/inc/mndConsumer.h
index 1176e1af0b..99b0d06936 100644
--- a/source/dnode/mnode/impl/inc/mndConsumer.h
+++ b/source/dnode/mnode/impl/inc/mndConsumer.h
@@ -24,10 +24,10 @@ extern "C" {
 
 enum {
   MQ_CONSUMER_STATUS__MODIFY = 1,
-  MQ_CONSUMER_STATUS__MODIFY_IN_REB,
+  MQ_CONSUMER_STATUS__MODIFY_IN_REB,     // this value is not used anymore
   MQ_CONSUMER_STATUS__READY,
   MQ_CONSUMER_STATUS__LOST,
-  MQ_CONSUMER_STATUS__LOST_IN_REB,
+  MQ_CONSUMER_STATUS__LOST_IN_REB,       // this value is not used anymore
   MQ_CONSUMER_STATUS__LOST_REBD,
   MQ_CONSUMER_STATUS__REMOVED,
 };
diff --git a/source/dnode/mnode/impl/src/mndConsumer.c b/source/dnode/mnode/impl/src/mndConsumer.c
index f1ef83aca5..2f560910d4 100644
--- a/source/dnode/mnode/impl/src/mndConsumer.c
+++ b/source/dnode/mnode/impl/src/mndConsumer.c
@@ -77,7 +77,7 @@ void mndCleanupConsumer(SMnode *pMnode) {}
 
 bool mndRebTryStart() {
   int32_t old = atomic_val_compare_exchange_32(&mqRebInExecCnt, 0, 1);
-  mInfo("tq timer, rebalance counter old val:%d", old);
+  mDebug("tq timer, rebalance counter old val:%d", old);
   return old == 0;
 }
 
@@ -101,7 +101,7 @@ void mndRebCntDec() {
     int32_t newVal = val - 1;
     int32_t oldVal = atomic_val_compare_exchange_32(&mqRebInExecCnt, val, newVal);
     if (oldVal == val) {
-      mInfo("rebalance trans end, rebalance counter:%d", newVal);
+      mDebug("rebalance trans end, rebalance counter:%d", newVal);
       break;
     }
   }
@@ -253,11 +253,11 @@ static int32_t mndProcessMqTimerMsg(SRpcMsg *pMsg) {
   SMqConsumerObj *pConsumer;
   void           *pIter = NULL;
 
-  mTrace("start to process mq timer");
+  mDebug("start to process mq timer");
 
   // rebalance cannot be parallel
   if (!mndRebTryStart()) {
-    mInfo("mq rebalance already in progress, do nothing");
+    mDebug("mq rebalance already in progress, do nothing");
     return 0;
   }
 
@@ -317,7 +317,7 @@ static int32_t mndProcessMqTimerMsg(SRpcMsg *pMsg) {
         taosArrayPush(pRebSub->removedConsumers, &pConsumer->consumerId);
       }
       taosRUnLockLatch(&pConsumer->lock);
-    } else if (status == MQ_CONSUMER_STATUS__MODIFY) {
+    } else if (status == MQ_CONSUMER_STATUS__MODIFY || status == MQ_CONSUMER_STATUS__MODIFY_IN_REB) {
       taosRLockLatch(&pConsumer->lock);
 
       int32_t newTopicNum = taosArrayGetSize(pConsumer->rebNewTopics);
@@ -356,7 +356,7 @@ static int32_t mndProcessMqTimerMsg(SRpcMsg *pMsg) {
   } else {
     taosHashCleanup(pRebMsg->rebSubHash);
     rpcFreeCont(pRebMsg);
-    mInfo("mq rebalance finished, no modification");
+    mDebug("mq rebalance finished, no modification");
     mndRebEnd();
   }
   return 0;
diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index e848a81d40..126a653a69 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -279,6 +279,8 @@ static int32_t mndDbActionUpdate(SSdb *pSdb, SDbObj *pOld, SDbObj *pNew) {
   pOld->cfg.cacheLast = pNew->cfg.cacheLast;
   pOld->cfg.replications = pNew->cfg.replications;
   pOld->cfg.sstTrigger = pNew->cfg.sstTrigger;
+  pOld->cfg.minRows = pNew->cfg.minRows;
+  pOld->cfg.maxRows = pNew->cfg.maxRows;
   pOld->cfg.tsdbPageSize = pNew->cfg.tsdbPageSize;
   pOld->compactStartTime = pNew->compactStartTime;
   taosWUnLockLatch(&pOld->lock);
@@ -616,13 +618,8 @@ static int32_t mndProcessCreateDbReq(SRpcMsg *pReq) {
     }
   } else {
     if (terrno == TSDB_CODE_MND_DB_IN_CREATING) {
-      if (mndSetRpcInfoForDbTrans(pMnode, pReq, MND_OPER_CREATE_DB, createReq.db) == 0) {
-        mInfo("db:%s, is creating and createdb response after trans finished", createReq.db);
-        code = TSDB_CODE_ACTION_IN_PROGRESS;
-        goto _OVER;
-      } else {
-        goto _OVER;
-      }
+      code = terrno;
+      goto _OVER;
     } else if (terrno == TSDB_CODE_MND_DB_IN_DROPPING) {
       goto _OVER;
     } else if (terrno == TSDB_CODE_MND_DB_NOT_EXIST) {
@@ -1270,14 +1267,9 @@ static int32_t mndProcessUseDbReq(SRpcMsg *pReq) {
       usedbRsp.errCode = terrno;
 
       if (terrno == TSDB_CODE_MND_DB_IN_CREATING) {
-        if (mndSetRpcInfoForDbTrans(pMnode, pReq, MND_OPER_CREATE_DB, usedbReq.db) == 0) {
-          mInfo("db:%s, is creating and usedb response after trans finished", usedbReq.db);
-          code = TSDB_CODE_ACTION_IN_PROGRESS;
-          goto _OVER;
-        }
+        code = terrno;
+        goto _OVER;
       }
-
-      mError("db:%s, failed to process use db req since %s", usedbReq.db, terrstr());
     } else {
       if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_USE_DB, pDb) != 0) {
         goto _OVER;
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index 2a369a863a..9e61364801 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -3114,6 +3114,7 @@ static int32_t mndRetrieveStbCol(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pB
   char typeName[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
   STR_TO_VARSTR(typeName, "SUPER_TABLE");
   while (numOfRows < rows) {
+    void *prevIter = pShow->pIter;
     pShow->pIter = sdbFetch(pSdb, SDB_STB, pShow->pIter, (void **)&pStb);
     if (pShow->pIter == NULL) break;
 
@@ -3122,6 +3123,12 @@ static int32_t mndRetrieveStbCol(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pB
       continue;
     }
 
+    if ((numOfRows + pStb->numOfColumns) > rows) {
+      pShow->pIter = prevIter;
+      sdbRelease(pSdb, pStb);
+      break;
+    }
+
     SName name = {0};
     char  stbName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
     mndExtractTbNameFromStbFullName(pStb->name, &stbName[VARSTR_HEADER_SIZE], TSDB_TABLE_NAME_LEN);
diff --git a/source/dnode/mnode/impl/src/mndSubscribe.c b/source/dnode/mnode/impl/src/mndSubscribe.c
index 4d19110f31..924216bcbf 100644
--- a/source/dnode/mnode/impl/src/mndSubscribe.c
+++ b/source/dnode/mnode/impl/src/mndSubscribe.c
@@ -224,7 +224,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
             .pVgEp = pVgEp,
         };
         taosHashPut(pHash, &pVgEp->vgId, sizeof(int32_t), &outputVg, sizeof(SMqRebOutputVg));
-        mInfo("sub:%s mq re-balance remove vgId:%d from consumer:%" PRIx64, sub, pVgEp->vgId, consumerId);
+        mInfo("sub:%s mq re-balance remove vgId:%d from consumer:0x%" PRIx64, sub, pVgEp->vgId, consumerId);
       }
       taosArrayDestroy(pConsumerEp->vgs);
       taosHashRemove(pOutput->pSub->consumerHash, &consumerId, sizeof(int64_t));
@@ -329,7 +329,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       newConsumerEp.vgs = taosArrayInit(0, sizeof(void *));
       taosHashPut(pOutput->pSub->consumerHash, &consumerId, sizeof(int64_t), &newConsumerEp, sizeof(SMqConsumerEp));
       taosArrayPush(pOutput->newConsumers, &consumerId);
-      mInfo("sub:%s mq rebalance add new consumer:%" PRIx64, sub, consumerId);
+      mInfo("sub:%s mq rebalance add new consumer:0x%" PRIx64, sub, consumerId);
     }
   }
 
@@ -357,7 +357,7 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       taosArrayPush(pConsumerEp->vgs, &pRebVg->pVgEp);
       pRebVg->newConsumerId = pConsumerEp->consumerId;
       taosArrayPush(pOutput->rebVgs, pRebVg);
-      mInfo("mq rebalance: add vgId:%d to consumer:%" PRIx64 " (second scan) (not enough)", pRebVg->pVgEp->vgId,
+      mInfo("mq rebalance: add vgId:%d to consumer:0x%" PRIx64 " (second scan) (not enough)", pRebVg->pVgEp->vgId,
             pConsumerEp->consumerId);
     }
   }
@@ -387,12 +387,12 @@ static int32_t mndDoRebalance(SMnode *pMnode, const SMqRebInputObj *pInput, SMqR
       taosArrayPush(pConsumerEp->vgs, &pRebVg->pVgEp);
       pRebVg->newConsumerId = pConsumerEp->consumerId;
       if (pRebVg->newConsumerId == pRebVg->oldConsumerId) {
-        mInfo("mq rebalance: skip vg %d for same consumer:%" PRIx64 " (second scan)", pRebVg->pVgEp->vgId,
+        mInfo("mq rebalance: skip vg %d for same consumer:0x%" PRIx64 " (second scan)", pRebVg->pVgEp->vgId,
               pConsumerEp->consumerId);
         continue;
       }
       taosArrayPush(pOutput->rebVgs, pRebVg);
-      mInfo("mq rebalance: add vgId:%d to consumer:%" PRIx64 " (second scan) (unassigned)", pRebVg->pVgEp->vgId,
+      mInfo("mq rebalance: add vgId:%d to consumer:0x%" PRIx64 " (second scan) (unassigned)", pRebVg->pVgEp->vgId,
             pConsumerEp->consumerId);
     }
   } else {
@@ -1019,7 +1019,7 @@ int32_t mndRetrieveSubscribe(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock
         pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
         colDataSetVal(pColInfo, numOfRows, (const char *)&pConsumerEp->consumerId, false);
 
-        mDebug("mnd show subscriptions: topic %s, consumer:%" PRIx64 " cgroup %s vgid %d", varDataVal(topic),
+        mDebug("mnd show subscriptions: topic %s, consumer:0x%" PRIx64 " cgroup %s vgid %d", varDataVal(topic),
                pConsumerEp->consumerId, varDataVal(cgroup), pVgEp->vgId);
 
         // offset
diff --git a/source/dnode/vnode/src/inc/tq.h b/source/dnode/vnode/src/inc/tq.h
index 792fed2309..ee2bd007ce 100644
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@@ -79,43 +79,33 @@ typedef struct {
 } STqExecDb;
 
 typedef struct {
-  int8_t subType;
-
-  STqReader*  pExecReader;
-  qTaskInfo_t task;
+  int8_t       subType;
+  STqReader*   pExecReader;
+  qTaskInfo_t  task;
   union {
     STqExecCol execCol;
     STqExecTb  execTb;
     STqExecDb  execDb;
   };
-  int32_t numOfCols;  // number of out pout column, temporarily used
+  int32_t      numOfCols;  // number of out pout column, temporarily used
 } STqExecHandle;
 
 typedef struct {
-  // info
-  char    subKey[TSDB_SUBSCRIBE_KEY_LEN];
-  int64_t consumerId;
-  int32_t epoch;
-  int8_t  fetchMeta;
-
-  int64_t snapshotVer;
-
-  SWalReader* pWalReader;
-
-  SWalRef* pRef;
-
-  // push
-  STqPushHandle pushHandle;
-
-  // exec
-  STqExecHandle execHandle;
-
+  char          subKey[TSDB_SUBSCRIBE_KEY_LEN];
+  int64_t       consumerId;
+  int32_t       epoch;
+  int8_t        fetchMeta;
+  int64_t       snapshotVer;
+  SWalReader*   pWalReader;
+  SWalRef*      pRef;
+  STqPushHandle pushHandle;    // push
+  STqExecHandle execHandle;    // exec
 } STqHandle;
 
 typedef struct {
-  SMqDataRsp     dataRsp;
+  SMqDataRsp*    pDataRsp;
   char           subKey[TSDB_SUBSCRIBE_KEY_LEN];
-  SRpcHandleInfo pInfo;
+  SRpcHandleInfo info;
 } STqPushEntry;
 
 struct STQ {
@@ -151,13 +141,13 @@ int32_t tDecodeSTqHandle(SDecoder* pDecoder, STqHandle* pHandle);
 // tqRead
 int32_t tqScanTaosx(STQ* pTq, const STqHandle* pHandle, STaosxRsp* pRsp, SMqMetaRsp* pMetaRsp, STqOffsetVal* offset);
 int32_t tqScanData(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, STqOffsetVal* pOffset);
-int64_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalCkHead** pHeadWithCkSum);
+int32_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalCkHead** pHeadWithCkSum);
 
 // tqExec
 int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxRsp* pRsp);
 // int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SSubmitReq* pReq, STaosxRsp* pRsp);
 int32_t tqAddBlockDataToRsp(const SSDataBlock* pBlock, SMqDataRsp* pRsp, int32_t numOfCols, int8_t precision);
-int32_t tqSendDataRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataRsp* pRsp);
+int32_t tqSendDataRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataRsp* pRsp, int32_t type);
 int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry);
 
 // tqMeta
diff --git a/source/dnode/vnode/src/inc/vnodeInt.h b/source/dnode/vnode/src/inc/vnodeInt.h
index 0dff2420ec..0fe7f9a773 100644
--- a/source/dnode/vnode/src/inc/vnodeInt.h
+++ b/source/dnode/vnode/src/inc/vnodeInt.h
@@ -192,6 +192,9 @@ void    tqCleanUp();
 STQ*    tqOpen(const char* path, SVnode* pVnode);
 void    tqClose(STQ*);
 int     tqPushMsg(STQ*, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver);
+int     tqRegisterPushEntry(STQ* pTq, void* pHandle, const SMqPollReq* pRequest, SRpcMsg* pRpcMsg, SMqDataRsp* pDataRsp, int32_t type);
+int     tqRemovePushEntry(STQ* pTq, const char* pKey, int32_t keyLen, uint64_t consumerId, bool rspConsumer);
+
 int     tqCommit(STQ*);
 int32_t tqUpdateTbUidList(STQ* pTq, const SArray* tbUidList, bool isAdd);
 int32_t tqCheckColModifiable(STQ* pTq, int64_t tbUid, int32_t colId);
diff --git a/source/dnode/vnode/src/meta/metaCache.c b/source/dnode/vnode/src/meta/metaCache.c
index 05889e4767..9501bf4b8e 100644
--- a/source/dnode/vnode/src/meta/metaCache.c
+++ b/source/dnode/vnode/src/meta/metaCache.c
@@ -14,6 +14,7 @@
  */
 #include "meta.h"
 
+#define TAG_FILTER_RES_KEY_LEN  32
 #define META_CACHE_BASE_BUCKET  1024
 #define META_CACHE_STATS_BUCKET 16
 
@@ -34,7 +35,6 @@ typedef struct SMetaStbStatsEntry {
 typedef struct STagFilterResEntry {
   SList    list;      // the linked list of md5 digest, extracted from the serialized tag query condition
   uint32_t hitTimes;  // queried times for current super table
-  uint32_t accTime;
 } STagFilterResEntry;
 
 struct SMetaCache {
@@ -455,26 +455,37 @@ static int checkAllEntriesInCache(const STagFilterResEntry* pEntry, SArray* pInv
   return 0;
 }
 
+static FORCE_INLINE void setMD5DigestInKey(uint64_t* pBuf, const char* key, int32_t keyLen) {
+//  ASSERT(keyLen == sizeof(int64_t) * 2);
+  memcpy(&pBuf[2], key, keyLen);
+}
+
+// the format of key:
+// hash table address(8bytes) + suid(8bytes) + MD5 digest(16bytes)
+static void initCacheKey(uint64_t* buf, const SHashObj* pHashMap, uint64_t suid, const char* key, int32_t keyLen) {
+  buf[0] = (uint64_t) pHashMap;
+  buf[1] = suid;
+  setMD5DigestInKey(buf, key, keyLen);
+  ASSERT(keyLen == sizeof(uint64_t) * 2);
+}
+
 int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pKey, int32_t keyLen, SArray* pList1,
                                   bool* acquireRes) {
+  int32_t vgId = TD_VID(pMeta->pVnode);
+
   // generate the composed key for LRU cache
   SLRUCache*     pCache = pMeta->pCache->sTagFilterResCache.pUidResCache;
   SHashObj*      pTableMap = pMeta->pCache->sTagFilterResCache.pTableEntry;
   TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
 
-  uint64_t buf[4];
-
   *acquireRes = 0;
-
-  buf[0] = (uint64_t)pTableMap;
-  buf[1] = suid;
-  memcpy(&buf[2], pKey, keyLen);
+  uint64_t key[4];
+  initCacheKey(key, pTableMap, suid, (const char*)pKey, keyLen);
 
   taosThreadMutexLock(pLock);
   pMeta->pCache->sTagFilterResCache.accTimes += 1;
 
-  int32_t    len = keyLen + sizeof(uint64_t) * 2;
-  LRUHandle* pHandle = taosLRUCacheLookup(pCache, buf, len);
+  LRUHandle* pHandle = taosLRUCacheLookup(pCache, key, TAG_FILTER_RES_KEY_LEN);
   if (pHandle == NULL) {
     taosThreadMutexUnlock(pLock);
     return TSDB_CODE_SUCCESS;
@@ -499,7 +510,7 @@ int32_t metaGetCachedTableUidList(SMeta* pMeta, tb_uid_t suid, const uint8_t* pK
 
   uint32_t acc = pMeta->pCache->sTagFilterResCache.accTimes;
   if ((*pEntry)->hitTimes % 5000 == 0 && (*pEntry)->hitTimes > 0) {
-    metaInfo("cache hit:%d, total acc:%d, rate:%.2f", (*pEntry)->hitTimes, acc, ((double)(*pEntry)->hitTimes) / acc);
+    metaInfo("vgId:%d cache hit:%d, total acc:%d, rate:%.2f", vgId, (*pEntry)->hitTimes, acc, ((double)(*pEntry)->hitTimes) / acc);
   }
 
   taosLRUCacheRelease(pCache, pHandle, false);
@@ -563,10 +574,13 @@ static int32_t addNewEntry(SHashObj* pTableEntry, const void* pKey, int32_t keyL
 // check both the payload size and selectivity ratio
 int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int32_t keyLen, void* pPayload,
                               int32_t payloadLen, double selectivityRatio) {
+  int32_t code = 0;
+  int32_t vgId = TD_VID(pMeta->pVnode);
+
   if (selectivityRatio > tsSelectivityRatio) {
     metaDebug("vgId:%d, suid:%" PRIu64
               " failed to add to uid list cache, due to selectivity ratio %.2f less than threshold %.2f",
-              TD_VID(pMeta->pVnode), suid, selectivityRatio, tsSelectivityRatio);
+              vgId, suid, selectivityRatio, tsSelectivityRatio);
     taosMemoryFree(pPayload);
     return TSDB_CODE_SUCCESS;
   }
@@ -574,7 +588,7 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
   if (payloadLen > tsTagFilterResCacheSize) {
     metaDebug("vgId:%d, suid:%" PRIu64
               " failed to add to uid list cache, due to payload length %d greater than threshold %d",
-              TD_VID(pMeta->pVnode), suid, payloadLen, tsTagFilterResCacheSize);
+              vgId, suid, payloadLen, tsTagFilterResCacheSize);
     taosMemoryFree(pPayload);
     return TSDB_CODE_SUCCESS;
   }
@@ -583,26 +597,17 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
   SHashObj*      pTableEntry = pMeta->pCache->sTagFilterResCache.pTableEntry;
   TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
 
-  // the format of key:
-  // hash table address(8bytes) + suid(8bytes) + MD5 digest(16bytes)
+  uint64_t key[4] = {0};
+  initCacheKey(key, pTableEntry, suid, pKey, keyLen);
 
-  uint64_t buf[4] = {0};
-  buf[0] = (uint64_t)pTableEntry;
-  buf[1] = suid;
-  memcpy(&buf[2], pKey, keyLen);
-  ASSERT(keyLen == 16);
-
-  int32_t code = 0;
   taosThreadMutexLock(pLock);
-
   STagFilterResEntry** pEntry = taosHashGet(pTableEntry, &suid, sizeof(uint64_t));
   if (pEntry == NULL) {
     code = addNewEntry(pTableEntry, pKey, keyLen, suid);
     if (code != TSDB_CODE_SUCCESS) {
       goto _end;
     }
-  } else {
-    // check if it exists or not
+  } else { // check if it exists or not
     size_t size = listNEles(&(*pEntry)->list);
     if (size == 0) {
       tdListAppend(&(*pEntry)->list, pKey);
@@ -620,12 +625,11 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
   }
 
   // add to cache.
-  taosLRUCacheInsert(pCache, buf, sizeof(uint64_t) * 2 + keyLen, pPayload, payloadLen, freePayload, NULL,
+  taosLRUCacheInsert(pCache, key, TAG_FILTER_RES_KEY_LEN, pPayload, payloadLen, freePayload, NULL,
                      TAOS_LRU_PRIORITY_LOW);
 _end:
   taosThreadMutexUnlock(pLock);
-
-  metaDebug("vgId:%d, suid:%" PRIu64 " list cache added into cache, total:%d, tables:%d", TD_VID(pMeta->pVnode), suid,
+  metaDebug("vgId:%d, suid:%" PRIu64 " list cache added into cache, total:%d, tables:%d", vgId, suid,
             (int32_t)taosLRUCacheGetUsage(pCache), taosHashGetSize(pTableEntry));
 
   return code;
@@ -633,33 +637,36 @@ _end:
 
 // remove the lru cache that are expired due to the tags value update, or creating, or dropping, of child tables
 int32_t metaUidCacheClear(SMeta* pMeta, uint64_t suid) {
-  int32_t  keyLen = sizeof(uint64_t) * 3;
-  uint64_t p[4] = {0};
+  uint64_t  p[4] = {0};
+  int32_t   vgId = TD_VID(pMeta->pVnode);
+  SHashObj* pEntryHashMap = pMeta->pCache->sTagFilterResCache.pTableEntry;
 
-  p[0] = (uint64_t)pMeta->pCache->sTagFilterResCache.pTableEntry;
-  p[1] = suid;
+  uint64_t dummy[2] = {0};
+  initCacheKey(p, pEntryHashMap, suid, (char*) &dummy[0], 16);
 
   TdThreadMutex* pLock = &pMeta->pCache->sTagFilterResCache.lock;
-
   taosThreadMutexLock(pLock);
-  STagFilterResEntry** pEntry = taosHashGet(pMeta->pCache->sTagFilterResCache.pTableEntry, &suid, sizeof(uint64_t));
+
+  STagFilterResEntry** pEntry = taosHashGet(pEntryHashMap, &suid, sizeof(uint64_t));
   if (pEntry == NULL || listNEles(&(*pEntry)->list) == 0) {
     taosThreadMutexUnlock(pLock);
     return TSDB_CODE_SUCCESS;
   }
 
+  (*pEntry)->hitTimes = 0;
+
   SListIter iter = {0};
   tdListInitIter(&(*pEntry)->list, &iter, TD_LIST_FORWARD);
 
   SListNode* pNode = NULL;
   while ((pNode = tdListNext(&iter)) != NULL) {
-    memcpy(&p[2], pNode->data, 16);
-    taosLRUCacheErase(pMeta->pCache->sTagFilterResCache.pUidResCache, p, keyLen);
+    setMD5DigestInKey(p, pNode->data, 2 * sizeof(uint64_t));
+    taosLRUCacheErase(pMeta->pCache->sTagFilterResCache.pUidResCache, p, TAG_FILTER_RES_KEY_LEN);
   }
 
-  (*pEntry)->hitTimes = 0;
   tdListEmpty(&(*pEntry)->list);
-
   taosThreadMutexUnlock(pLock);
+
+  metaDebug("vgId:%d suid:%"PRId64" cached related tag filter uid list cleared", vgId, suid);
   return TSDB_CODE_SUCCESS;
 }
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index cd67dc23ad..cac5d7a30c 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -68,7 +68,13 @@ static void destroySTqHandle(void* data) {
 
 static void tqPushEntryFree(void* data) {
   STqPushEntry* p = *(void**)data;
-  tDeleteSMqDataRsp(&p->dataRsp);
+  if (p->pDataRsp->head.mqMsgType == TMQ_MSG_TYPE__POLL_RSP) {
+    tDeleteSMqDataRsp(p->pDataRsp);
+  } else if (p->pDataRsp->head.mqMsgType == TMQ_MSG_TYPE__TAOSX_RSP) {
+    tDeleteSTaosxRsp((STaosxRsp*)p->pDataRsp);
+  }
+
+  taosMemoryFree(p->pDataRsp);
   taosMemoryFree(p);
 }
 
@@ -166,12 +172,16 @@ int32_t tqSendMetaPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq,
   return 0;
 }
 
-int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry) {
-  SMqDataRsp* pRsp = &pPushEntry->dataRsp;
-
+static int32_t doSendDataRsp(const SRpcHandleInfo* pRpcHandleInfo, const SMqDataRsp* pRsp, int32_t epoch,
+                             int64_t consumerId, int32_t type) {
   int32_t len = 0;
   int32_t code = 0;
-  tEncodeSize(tEncodeSMqDataRsp, pRsp, len, code);
+
+  if (type == TMQ_MSG_TYPE__POLL_RSP) {
+    tEncodeSize(tEncodeSMqDataRsp, pRsp, len, code);
+  } else if (type == TMQ_MSG_TYPE__TAOSX_RSP) {
+    tEncodeSize(tEncodeSTaosxRsp, (STaosxRsp*)pRsp, len, code);
+  }
 
   if (code < 0) {
     return -1;
@@ -183,23 +193,83 @@ int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry) {
     return -1;
   }
 
-  memcpy(buf, &pPushEntry->dataRsp.head, sizeof(SMqRspHead));
+  ((SMqRspHead*)buf)->mqMsgType = type;
+  ((SMqRspHead*)buf)->epoch = epoch;
+  ((SMqRspHead*)buf)->consumerId = consumerId;
 
   void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
 
   SEncoder encoder = {0};
   tEncoderInit(&encoder, abuf, len);
-  tEncodeSMqDataRsp(&encoder, pRsp);
+
+  if (type == TMQ_MSG_TYPE__POLL_RSP) {
+    tEncodeSMqDataRsp(&encoder, pRsp);
+  } else if (type == TMQ_MSG_TYPE__TAOSX_RSP) {
+    tEncodeSTaosxRsp(&encoder, (STaosxRsp*) pRsp);
+  }
+
   tEncoderClear(&encoder);
 
   SRpcMsg rsp = {
-      .info = pPushEntry->pInfo,
+      .info = *pRpcHandleInfo,
       .pCont = buf,
       .contLen = tlen,
       .code = 0,
   };
 
   tmsgSendRsp(&rsp);
+  return 0;
+}
+
+int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry) {
+  SMqDataRsp* pRsp = pPushEntry->pDataRsp;
+
+#if 0
+  A(taosArrayGetSize(pRsp->blockData) == pRsp->blockNum);
+  A(taosArrayGetSize(pRsp->blockDataLen) == pRsp->blockNum);
+
+  A(!pRsp->withSchema);
+  A(taosArrayGetSize(pRsp->blockSchema) == 0);
+
+  if (pRsp->reqOffset.type == TMQ_OFFSET__LOG) {
+    A(pRsp->rspOffset.version > pRsp->reqOffset.version);
+  }
+#endif
+
+//  int32_t len = 0;
+//  int32_t code = 0;
+//  tEncodeSize(tEncodeSMqDataRsp, pRsp, len, code);
+//  if (code < 0) {
+//    return -1;
+//  }
+//
+//  int32_t tlen = sizeof(SMqRspHead) + len;
+//  void*   buf = rpcMallocCont(tlen);
+//  if (buf == NULL) {
+//    return -1;
+//  }
+//
+//  memcpy(buf, &pPushEntry->dataRsp.head, sizeof(SMqRspHead));
+//
+//  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+//
+//  SEncoder encoder = {0};
+//  tEncoderInit(&encoder, abuf, len);
+//  tEncodeSMqDataRsp(&encoder, pRsp);
+//  tEncoderClear(&encoder);
+//
+//  SRpcMsg rsp = {
+//      .info = pPushEntry->pInfo,
+//      .pCont = buf,
+//      .contLen = tlen,
+//      .code = 0,
+//  };
+//
+//  tmsgSendRsp(&rsp);
+//
+
+  SMqRspHead* pHeader = &pPushEntry->pDataRsp->head;
+  doSendDataRsp(&pPushEntry->info, pRsp, pHeader->epoch, pHeader->consumerId, pHeader->mqMsgType);
 
   char buf1[80] = {0};
   char buf2[80] = {0};
@@ -207,93 +277,146 @@ int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry) {
   tFormatOffset(buf2, tListLen(buf2), &pRsp->rspOffset);
   tqDebug("vgId:%d, from consumer:0x%" PRIx64 " (epoch %d) push rsp, block num: %d, req:%s, rsp:%s",
           TD_VID(pTq->pVnode), pRsp->head.consumerId, pRsp->head.epoch, pRsp->blockNum, buf1, buf2);
-
   return 0;
 }
 
-int32_t tqSendDataRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataRsp* pRsp) {
-  int32_t len = 0;
-  int32_t code = 0;
-  tEncodeSize(tEncodeSMqDataRsp, pRsp, len, code);
-  if (code < 0) {
-    return -1;
-  }
-  int32_t tlen = sizeof(SMqRspHead) + len;
-  void*   buf = rpcMallocCont(tlen);
-  if (buf == NULL) {
-    return -1;
+int32_t tqSendDataRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataRsp* pRsp, int32_t type) {
+#if 0
+  A(taosArrayGetSize(pRsp->blockData) == pRsp->blockNum);
+  A(taosArrayGetSize(pRsp->blockDataLen) == pRsp->blockNum);
+
+  A(!pRsp->withSchema);
+  A(taosArrayGetSize(pRsp->blockSchema) == 0);
+
+  if (pRsp->reqOffset.type == TMQ_OFFSET__LOG) {
+    if (pRsp->blockNum > 0) {
+      A(pRsp->rspOffset.version > pRsp->reqOffset.version);
+    } else {
+      A(pRsp->rspOffset.version >= pRsp->reqOffset.version);
+    }
   }
+#endif
 
-  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
-  ((SMqRspHead*)buf)->epoch = pReq->epoch;
-  ((SMqRspHead*)buf)->consumerId = pReq->consumerId;
-
-  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
-
-  SEncoder encoder = {0};
-  tEncoderInit(&encoder, abuf, len);
-  tEncodeSMqDataRsp(&encoder, pRsp);
-  tEncoderClear(&encoder);
-
-  SRpcMsg rsp = {
-      .info = pMsg->info,
-      .pCont = buf,
-      .contLen = tlen,
-      .code = 0,
-  };
-  tmsgSendRsp(&rsp);
+//  int32_t len = 0;
+//  int32_t code = 0;
+//
+//  if (type == TMQ_MSG_TYPE__POLL_RSP) {
+//    tEncodeSize(tEncodeSMqDataRsp, pRsp, len, code);
+//  } else if (type == TMQ_MSG_TYPE__TAOSX_RSP) {
+//    tEncodeSize(tEncodeSTaosxRsp, (STaosxRsp*)pRsp, len, code);
+//  }
+//
+//  if (code < 0) {
+//    return -1;
+//  }
+//
+//  int32_t tlen = sizeof(SMqRspHead) + len;
+//  void*   buf = rpcMallocCont(tlen);
+//  if (buf == NULL) {
+//    return -1;
+//  }
+//
+//  ((SMqRspHead*)buf)->mqMsgType = type;
+//  ((SMqRspHead*)buf)->epoch = pReq->epoch;
+//  ((SMqRspHead*)buf)->consumerId = pReq->consumerId;
+//
+//  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+//
+//  SEncoder encoder = {0};
+//  tEncoderInit(&encoder, abuf, len);
+//
+//  if (type == TMQ_MSG_TYPE__POLL_RSP) {
+//    tEncodeSMqDataRsp(&encoder, pRsp);
+//  } else if (type == TMQ_MSG_TYPE__TAOSX_RSP) {
+//    tEncodeSTaosxRsp(&encoder, (STaosxRsp*) pRsp);
+//  }
+//
+//  tEncoderClear(&encoder);
+//
+//  SRpcMsg rsp = {
+//      .info = pMsg->info,
+//      .pCont = buf,
+//      .contLen = tlen,
+//      .code = 0,
+//  };
+//
+//  tmsgSendRsp(&rsp);
+  doSendDataRsp(&pMsg->info, pRsp, pReq->epoch, pReq->consumerId, type);
 
   char buf1[80] = {0};
   char buf2[80] = {0};
   tFormatOffset(buf1, 80, &pRsp->reqOffset);
   tFormatOffset(buf2, 80, &pRsp->rspOffset);
-  tqDebug("vgId:%d consumer:0x%" PRIx64 " (epoch %d), block num:%d, req:%s, rsp:%s",
+
+  tqDebug("vgId:%d consumer:0x%" PRIx64 " (epoch %d) send rsp, block num:%d, req:%s, rsp:%s",
           TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->blockNum, buf1, buf2);
 
   return 0;
 }
 
-int32_t tqSendTaosxRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const STaosxRsp* pRsp) {
-  int32_t len = 0;
-  int32_t code = 0;
-  tEncodeSize(tEncodeSTaosxRsp, pRsp, len, code);
-  if (code < 0) {
-    return -1;
-  }
-  int32_t tlen = sizeof(SMqRspHead) + len;
-  void*   buf = rpcMallocCont(tlen);
-  if (buf == NULL) {
-    return -1;
-  }
-
-  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__TAOSX_RSP;
-  ((SMqRspHead*)buf)->epoch = pReq->epoch;
-  ((SMqRspHead*)buf)->consumerId = pReq->consumerId;
-
-  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
-
-  SEncoder encoder = {0};
-  tEncoderInit(&encoder, abuf, len);
-  tEncodeSTaosxRsp(&encoder, pRsp);
-  tEncoderClear(&encoder);
-
-  SRpcMsg rsp = {
-      .info = pMsg->info,
-      .pCont = buf,
-      .contLen = tlen,
-      .code = 0,
-  };
-  tmsgSendRsp(&rsp);
-
-  char buf1[80] = {0};
-  char buf2[80] = {0};
-  tFormatOffset(buf1, 80, &pRsp->reqOffset);
-  tFormatOffset(buf2, 80, &pRsp->rspOffset);
-  tqDebug("taosx rsp, vgId:%d, from consumer:0x%" PRIx64 " (epoch %d) send rsp, numOfBlks:%d, req:%s, rsp:%s",
-          TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->blockNum, buf1, buf2);
-
-  return 0;
-}
+//int32_t tqSendTaosxRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const STaosxRsp* pRsp) {
+//#if 0
+//  A(taosArrayGetSize(pRsp->blockData) == pRsp->blockNum);
+//  A(taosArrayGetSize(pRsp->blockDataLen) == pRsp->blockNum);
+//
+//  if (pRsp->withSchema) {
+//    A(taosArrayGetSize(pRsp->blockSchema) == pRsp->blockNum);
+//  } else {
+//    A(taosArrayGetSize(pRsp->blockSchema) == 0);
+//  }
+//
+//  if (pRsp->reqOffset.type == TMQ_OFFSET__LOG) {
+//    if (pRsp->blockNum > 0) {
+//      A(pRsp->rspOffset.version > pRsp->reqOffset.version);
+//    } else {
+//      A(pRsp->rspOffset.version >= pRsp->reqOffset.version);
+//    }
+//  }
+//#endif
+//
+//  int32_t len = 0;
+//  int32_t code = 0;
+//  tEncodeSize(tEncodeSTaosxRsp, pRsp, len, code);
+//  if (code < 0) {
+//    return -1;
+//  }
+//
+//  int32_t tlen = sizeof(SMqRspHead) + len;
+//  void*   buf = rpcMallocCont(tlen);
+//  if (buf == NULL) {
+//    terrno = TSDB_CODE_OUT_OF_MEMORY;
+//    return -1;
+//  }
+//
+//  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__TAOSX_RSP;
+//  ((SMqRspHead*)buf)->epoch = pReq->epoch;
+//  ((SMqRspHead*)buf)->consumerId = pReq->consumerId;
+//
+//  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+//
+//  SEncoder encoder = {0};
+//  tEncoderInit(&encoder, abuf, len);
+//  tEncodeSTaosxRsp(&encoder, pRsp);
+//  tEncoderClear(&encoder);
+//
+//  SRpcMsg rsp = {
+//      .info = pMsg->info,
+//      .pCont = buf,
+//      .contLen = tlen,
+//      .code = 0,
+//  };
+//
+//  tmsgSendRsp(&rsp);
+//
+//  char buf1[80] = {0};
+//  char buf2[80] = {0};
+//  tFormatOffset(buf1, 80, &pRsp->reqOffset);
+//  tFormatOffset(buf2, 80, &pRsp->rspOffset);
+//
+//  tqDebug("taosx rsp, vgId:%d, consumer:0x%" PRIx64 " (epoch %d) send rsp, numOfBlks:%d, req:%s, rsp:%s",
+//          TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->blockNum, buf1, buf2);
+//  return 0;
+//}
 
 static FORCE_INLINE bool tqOffsetLessOrEqual(const STqOffset* pLeft, const STqOffset* pRight) {
   return pLeft->val.type == TMQ_OFFSET__LOG && pRight->val.type == TMQ_OFFSET__LOG &&
@@ -382,8 +505,18 @@ static int32_t tqInitDataRsp(SMqDataRsp* pRsp, const SMqPollReq* pReq, int8_t su
   }
 
   pRsp->withTbName = 0;
-  pRsp->withSchema = false;
+#if 0
+  pRsp->withTbName = pReq->withTbName;
+  if (pRsp->withTbName) {
+    pRsp->blockTbName = taosArrayInit(0, sizeof(void*));
+    if (pRsp->blockTbName == NULL) {
+      // TODO free
+      return -1;
+    }
+  }
+#endif
 
+  pRsp->withSchema = false;
   return 0;
 }
 
@@ -404,170 +537,147 @@ static int32_t tqInitTaosxRsp(STaosxRsp* pRsp, const SMqPollReq* pReq) {
   return 0;
 }
 
-int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
-  SMqPollReq   req = {0};
-  int32_t      code = 0;
-  STqOffsetVal fetchOffsetNew;
-  SWalCkHead*  pCkHead = NULL;
+static int32_t extractResetOffsetVal(STqOffsetVal* pOffsetVal, STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
+                                     SRpcMsg* pMsg, bool* pBlockReturned) {
+  uint64_t     consumerId = pRequest->consumerId;
+  STqOffsetVal reqOffset = pRequest->reqOffset;
+  STqOffset*   pOffset = tqOffsetRead(pTq->pOffsetStore, pRequest->subKey);
+  *pBlockReturned = false;
 
-  if (tDeserializeSMqPollReq(pMsg->pCont, pMsg->contLen, &req) < 0) {
-    tqError("tDeserializeSMqPollReq %d failed", pMsg->contLen);
-    return -1;
-  }
+  // In this vnode, data has been polled by consumer for this topic, so let's continue from the last offset value.
+  if (pOffset != NULL) {
+    *pOffsetVal = pOffset->val;
 
-  int64_t      consumerId = req.consumerId;
-  int32_t      reqEpoch = req.epoch;
-  STqOffsetVal reqOffset = req.reqOffset;
-
-  // 1. find handle
-  STqHandle* pHandle = taosHashGet(pTq->pHandle, req.subKey, strlen(req.subKey));
-  if (pHandle == NULL) {
-    tqError("tmq poll: consumer:0x%" PRIx64 " vgId:%d, subkey %s not found", consumerId, TD_VID(pTq->pVnode),
-            req.subKey);
-    return -1;
-  }
-
-  // 2. check rebalance
-  if (pHandle->consumerId != consumerId) {
-    tqDebug("ERROR tmq poll: consumer:0x%" PRIx64 " vgId:%d, subkey %s, mismatch for saved handle consumer:0x%" PRIx64,
-            consumerId, TD_VID(pTq->pVnode), req.subKey, pHandle->consumerId);
-    terrno = TSDB_CODE_TMQ_CONSUMER_MISMATCH;
-    return -1;
-  }
-
-  // update epoch if need
-  int32_t savedEpoch = atomic_load_32(&pHandle->epoch);
-  while (savedEpoch < reqEpoch) {
-    tqDebug("tmq poll: consumer:0x%"PRIx64 " epoch update from %d to %d by poll req", consumerId, savedEpoch, reqEpoch);
-    savedEpoch = atomic_val_compare_exchange_32(&pHandle->epoch, savedEpoch, reqEpoch);
-  }
-
-  char buf[80];
-  tFormatOffset(buf, 80, &reqOffset);
-  tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey %s, recv poll req vgId:%d, req:%s", consumerId,
-          req.epoch, pHandle->subKey, TD_VID(pTq->pVnode), buf);
-
-  // 2.reset offset if needed
-  if (reqOffset.type > 0) {
-    fetchOffsetNew = reqOffset;
+    char formatBuf[80];
+    tFormatOffset(formatBuf, 80, pOffsetVal);
+    tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, prev offset found, offset reset to %s and continue.",
+            consumerId, pHandle->subKey, TD_VID(pTq->pVnode), formatBuf);
+    return 0;
   } else {
-    STqOffset* pOffset = tqOffsetRead(pTq->pOffsetStore, req.subKey);
-    if (pOffset != NULL) {
-      fetchOffsetNew = pOffset->val;
-      char formatBuf[80];
-      tFormatOffset(formatBuf, 80, &fetchOffsetNew);
-      tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vg %d, offset reset to %s", consumerId, pHandle->subKey,
-              TD_VID(pTq->pVnode), formatBuf);
-    } else {
-      if (reqOffset.type == TMQ_OFFSET__RESET_EARLIEAST) {
-        if (req.useSnapshot) {
-          if (pHandle->fetchMeta) {
-            tqOffsetResetToMeta(&fetchOffsetNew, 0);
-          } else {
-            tqOffsetResetToData(&fetchOffsetNew, 0, 0);
-          }
+    // no poll occurs in this vnode for this topic, let's seek to the right offset value.
+    if (reqOffset.type == TMQ_OFFSET__RESET_EARLIEAST) {
+      if (pRequest->useSnapshot) {
+        if (pHandle->fetchMeta) {
+          tqOffsetResetToMeta(pOffsetVal, 0);
         } else {
-          pHandle->pRef = walRefFirstVer(pTq->pVnode->pWal, pHandle->pRef);
-          if (pHandle->pRef == NULL) {
-            terrno = TSDB_CODE_OUT_OF_MEMORY;
-            return -1;
-          }
-          tqOffsetResetToLog(&fetchOffsetNew, pHandle->pRef->refVer - 1);
+          tqOffsetResetToData(pOffsetVal, 0, 0);
+        }
+      } else {
+        pHandle->pRef = walRefFirstVer(pTq->pVnode->pWal, pHandle->pRef);
+        if (pHandle->pRef == NULL) {
+          terrno = TSDB_CODE_OUT_OF_MEMORY;
+          return -1;
         }
-      } else if (reqOffset.type == TMQ_OFFSET__RESET_LATEST) {
-        if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
-          SMqDataRsp dataRsp = {0};
-          tqInitDataRsp(&dataRsp, &req, pHandle->execHandle.subType);
 
-          tqOffsetResetToLog(&dataRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
-          tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, offset reset to %" PRId64, consumerId,
-                  pHandle->subKey, TD_VID(pTq->pVnode), dataRsp.rspOffset.version);
-          if (tqSendDataRsp(pTq, pMsg, &req, &dataRsp) < 0) {
-            code = -1;
-          }
-          tDeleteSMqDataRsp(&dataRsp);
-          return code;
-        } else {
-          STaosxRsp taosxRsp = {0};
-          tqInitTaosxRsp(&taosxRsp, &req);
-          tqOffsetResetToLog(&taosxRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
-          if (tqSendTaosxRsp(pTq, pMsg, &req, &taosxRsp) < 0) {
-            code = -1;
-          }
-          tDeleteSTaosxRsp(&taosxRsp);
-          return code;
-        }
-      } else if (reqOffset.type == TMQ_OFFSET__RESET_NONE) {
-        tqError("tmq poll: subkey %s, no offset committed for consumer:0x%" PRIx64
-                " in vg %d, subkey %s, reset none failed",
-                pHandle->subKey, consumerId, TD_VID(pTq->pVnode), req.subKey);
-        terrno = TSDB_CODE_TQ_NO_COMMITTED_OFFSET;
-        return -1;
+        tqOffsetResetToLog(pOffsetVal, pHandle->pRef->refVer - 1);
       }
-    }
-  }
+    } else if (reqOffset.type == TMQ_OFFSET__RESET_LATEST) {
+      if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
+        SMqDataRsp dataRsp = {0};
+        tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
 
-  if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
-    SMqDataRsp dataRsp = {0};
-    tqInitDataRsp(&dataRsp, &req, pHandle->execHandle.subType);
-    // lock
-    taosWLockLatch(&pTq->pushLock);
-    if (tqScanData(pTq, pHandle, &dataRsp, &fetchOffsetNew) < 0) {
+        tqOffsetResetToLog(&dataRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
+        tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, offset reset to %" PRId64, consumerId,
+                pHandle->subKey, TD_VID(pTq->pVnode), dataRsp.rspOffset.version);
+        int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
+        tDeleteSMqDataRsp(&dataRsp);
+
+        *pBlockReturned = true;
+        return code;
+      } else {
+        STaosxRsp taosxRsp = {0};
+        tqInitTaosxRsp(&taosxRsp, pRequest);
+        tqOffsetResetToLog(&taosxRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
+        int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
+//        int32_t code = tqSendTaosxRsp(pTq, pMsg, pRequest, &taosxRsp);
+        tDeleteSTaosxRsp(&taosxRsp);
+
+        *pBlockReturned = true;
+        return code;
+      }
+    } else if (reqOffset.type == TMQ_OFFSET__RESET_NONE) {
+      tqError("tmq poll: subkey %s, no offset committed for consumer:0x%" PRIx64
+              " in vg %d, subkey %s, reset none failed",
+              pHandle->subKey, consumerId, TD_VID(pTq->pVnode), pRequest->subKey);
+      terrno = TSDB_CODE_TQ_NO_COMMITTED_OFFSET;
       return -1;
     }
+  }
 
-    // till now, all data has been rsp to consumer, new data needs to push client once arrived.
+  return 0;
+}
+
+static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg) {
+  int32_t      code = -1;
+  STqOffsetVal offset = {0};
+  SWalCkHead*  pCkHead = NULL;
+  int32_t      vgId = TD_VID(pTq->pVnode);
+
+  STqOffsetVal reqOffset = pRequest->reqOffset;
+  uint64_t     consumerId = pRequest->consumerId;
+
+  // 1. reset the offset if needed
+  if (reqOffset.type > 0) {
+    offset = reqOffset;
+  } else { // handle the reset offset cases, according to the consumer's choice.
+    bool blockReturned = false;
+    code = extractResetOffsetVal(&offset, pTq, pHandle, pRequest, pMsg, &blockReturned);
+    if (code != 0) {
+      return code;
+    }
+
+    // empty block returned, quit
+    if (blockReturned) {
+      return 0;
+    }
+  }
+
+  // this is a normal subscription requirement
+  if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
+    SMqDataRsp dataRsp = {0};
+    tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
+
+    // lock
+    taosWLockLatch(&pTq->pushLock);
+    code = tqScanData(pTq, pHandle, &dataRsp, &offset);
+
+    // till now, all data has been transferred to consumer, new data needs to push client once arrived.
     if (dataRsp.blockNum == 0 && dataRsp.reqOffset.type == TMQ_OFFSET__LOG &&
-        dataRsp.reqOffset.version == dataRsp.rspOffset.version) {
-      STqPushEntry* pPushEntry = taosMemoryCalloc(1, sizeof(STqPushEntry));
-      if (pPushEntry != NULL) {
-        pPushEntry->pInfo = pMsg->info;
-        memcpy(pPushEntry->subKey, pHandle->subKey, TSDB_SUBSCRIBE_KEY_LEN);
-        dataRsp.withTbName = 0;
-        memcpy(&pPushEntry->dataRsp, &dataRsp, sizeof(SMqDataRsp));
-        pPushEntry->dataRsp.head.consumerId = consumerId;
-        pPushEntry->dataRsp.head.epoch = reqEpoch;
-        pPushEntry->dataRsp.head.mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
-        taosHashPut(pTq->pPushMgr, pHandle->subKey, strlen(pHandle->subKey) + 1, &pPushEntry, sizeof(void*));
-
-        tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s offset:%" PRId64 ", vgId:%d save handle to push mgr",
-                consumerId, pHandle->subKey, dataRsp.reqOffset.version, TD_VID(pTq->pVnode));
-        // unlock
-        taosWUnLockLatch(&pTq->pushLock);
-        return 0;
-      }
+        dataRsp.reqOffset.version == dataRsp.rspOffset.version && pHandle->consumerId == pRequest->consumerId) {
+      code = tqRegisterPushEntry(pTq, pHandle, pRequest, pMsg, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
+      taosWUnLockLatch(&pTq->pushLock);
+      return code;
     }
+
     taosWUnLockLatch(&pTq->pushLock);
+    code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&dataRsp, TMQ_MSG_TYPE__POLL_RSP);
 
-    if (tqSendDataRsp(pTq, pMsg, &req, &dataRsp) < 0) {
-      code = -1;
-    }
-
-    tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, rsp block:%d, offset type:%d, uid/version:%" PRId64 ", ts:%" PRId64 "",
-            consumerId, pHandle->subKey, TD_VID(pTq->pVnode), dataRsp.blockNum, dataRsp.rspOffset.type,
-            dataRsp.rspOffset.uid, dataRsp.rspOffset.ts);
+    // NOTE: this pHandle->consumerId may have been changed already.
+    tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, rsp block:%d, offset type:%d, uid/version:%" PRId64
+            ", ts:%" PRId64,
+            consumerId, pHandle->subKey, vgId, dataRsp.blockNum, dataRsp.rspOffset.type, dataRsp.rspOffset.uid,
+            dataRsp.rspOffset.ts);
 
     tDeleteSMqDataRsp(&dataRsp);
     return code;
   }
 
+  // todo handle the case where re-balance occurs.
   // for taosx
   SMqMetaRsp metaRsp = {0};
   STaosxRsp taosxRsp = {0};
-  tqInitTaosxRsp(&taosxRsp, &req);
+  tqInitTaosxRsp(&taosxRsp, pRequest);
 
-  if (fetchOffsetNew.type != TMQ_OFFSET__LOG) {
-    if (tqScanTaosx(pTq, pHandle, &taosxRsp, &metaRsp, &fetchOffsetNew) < 0) {
+  if (offset.type != TMQ_OFFSET__LOG) {
+    if (tqScanTaosx(pTq, pHandle, &taosxRsp, &metaRsp, &offset) < 0) {
       return -1;
     }
 
     if (metaRsp.metaRspLen > 0) {
-      if (tqSendMetaPollRsp(pTq, pMsg, &req, &metaRsp) < 0) {
-        code = -1;
-      }
-      tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey %s, vg %d, send meta offset type:%d,uid:%" PRId64
+      code = tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp);
+      tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64
               ",version:%" PRId64,
-              consumerId, pHandle->subKey, TD_VID(pTq->pVnode), metaRsp.rspOffset.type, metaRsp.rspOffset.uid,
+              consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid,
               metaRsp.rspOffset.version);
       taosMemoryFree(metaRsp.metaRsp);
       tDeleteSTaosxRsp(&taosxRsp);
@@ -575,54 +685,56 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
     }
 
     if (taosxRsp.blockNum > 0) {
-      if (tqSendTaosxRsp(pTq, pMsg, &req, &taosxRsp) < 0) {
-        code = -1;
-      }
+      code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
       tDeleteSTaosxRsp(&taosxRsp);
       return code;
     } else {
-      fetchOffsetNew = taosxRsp.rspOffset;
+      offset = taosxRsp.rspOffset;
     }
 
-    tqDebug("taosx poll: consumer:0x%" PRIx64 " subkey %s, vg %d, send data blockNum:%d, offset type:%d,uid:%" PRId64
+    tqDebug("taosx poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send data blockNum:%d, offset type:%d,uid:%" PRId64
             ",version:%" PRId64,
-            consumerId, pHandle->subKey, TD_VID(pTq->pVnode), taosxRsp.blockNum, taosxRsp.rspOffset.type,
-            taosxRsp.rspOffset.uid, taosxRsp.rspOffset.version);
-  }
+            consumerId, pHandle->subKey, vgId, taosxRsp.blockNum, taosxRsp.rspOffset.type, taosxRsp.rspOffset.uid,
+            taosxRsp.rspOffset.version);
+  } else {
 
-  if (fetchOffsetNew.type == TMQ_OFFSET__LOG) {
-    int64_t fetchVer = fetchOffsetNew.version + 1;
+//  if (offset.type == TMQ_OFFSET__LOG) {
+    int64_t fetchVer = offset.version + 1;
     pCkHead = taosMemoryMalloc(sizeof(SWalCkHead) + 2048);
     if (pCkHead == NULL) {
       tDeleteSTaosxRsp(&taosxRsp);
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
 
     walSetReaderCapacity(pHandle->pWalReader, 2048);
 
     while (1) {
-      savedEpoch = atomic_load_32(&pHandle->epoch);
-      if (savedEpoch > reqEpoch) {
-        tqWarn("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey %s, vg %d offset %" PRId64
+      // todo refactor: this is not correct.
+      int32_t savedEpoch = atomic_load_32(&pHandle->epoch);
+      if (savedEpoch > pRequest->epoch) {
+        tqWarn("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey:%s vgId:%d offset %" PRId64
                ", found new consumer epoch %d, discard req epoch %d",
-               consumerId, req.epoch, pHandle->subKey, TD_VID(pTq->pVnode), fetchVer, savedEpoch, reqEpoch);
+               consumerId, pRequest->epoch, pHandle->subKey, vgId, fetchVer, savedEpoch, pRequest->epoch);
         break;
       }
 
       if (tqFetchLog(pTq, pHandle, &fetchVer, &pCkHead) < 0) {
         tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
-        if (tqSendTaosxRsp(pTq, pMsg, &req, &taosxRsp) < 0) {
-          code = -1;
-        }
-        tDeleteSTaosxRsp(&taosxRsp);
-        taosMemoryFreeClear(pCkHead);
-        return code;
+//        if (terrno == 0) {  // failed to seek to given ver, but no errors happen.
+//          code = tqRegisterPushEntry(pTq, pHandle, pRequest, pMsg, (SMqDataRsp*) &taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
+//          return code;
+//        } else { // error happens, return to consumers
+          code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
+          tDeleteSTaosxRsp(&taosxRsp);
+          taosMemoryFreeClear(pCkHead);
+          return code;
+//        }
       }
 
       SWalCont* pHead = &pCkHead->head;
-
       tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d) iter log, vgId:%d offset %" PRId64 " msgType %d", consumerId,
-              req.epoch, TD_VID(pTq->pVnode), fetchVer, pHead->msgType);
+              pRequest->epoch, vgId, fetchVer, pHead->msgType);
 
       if (pHead->msgType == TDMT_VND_SUBMIT) {
         SPackedData submit = {
@@ -630,16 +742,16 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
             .msgLen = pHead->bodyLen - sizeof(SSubmitReq2Msg),
             .ver = pHead->version,
         };
+
         if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp) < 0) {
-          tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", consumerId, TD_VID(pTq->pVnode),
-                  req.subKey);
+          tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", consumerId, vgId,
+                  pRequest->subKey);
           return -1;
         }
-        if (taosxRsp.blockNum > 0 /* threshold */) {
+
+        if (taosxRsp.blockNum > 0) {
           tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
-          if (tqSendTaosxRsp(pTq, pMsg, &req, &taosxRsp) < 0) {
-            code = -1;
-          }
+          code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
           tDeleteSTaosxRsp(&taosxRsp);
           taosMemoryFreeClear(pCkHead);
           return code;
@@ -655,7 +767,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
         metaRsp.resMsgType = pHead->msgType;
         metaRsp.metaRspLen = pHead->bodyLen;
         metaRsp.metaRsp = pHead->body;
-        if (tqSendMetaPollRsp(pTq, pMsg, &req, &metaRsp) < 0) {
+        if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
           code = -1;
           taosMemoryFreeClear(pCkHead);
           tDeleteSTaosxRsp(&taosxRsp);
@@ -674,6 +786,55 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
   return 0;
 }
 
+int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
+  SMqPollReq   req = {0};
+  if (tDeserializeSMqPollReq(pMsg->pCont, pMsg->contLen, &req) < 0) {
+    tqError("tDeserializeSMqPollReq %d failed", pMsg->contLen);
+    terrno = TSDB_CODE_INVALID_MSG;
+    return -1;
+  }
+
+  int64_t      consumerId = req.consumerId;
+  int32_t      reqEpoch = req.epoch;
+  STqOffsetVal reqOffset = req.reqOffset;
+  int32_t      vgId = TD_VID(pTq->pVnode);
+
+  // 1. find handle
+  STqHandle* pHandle = taosHashGet(pTq->pHandle, req.subKey, strlen(req.subKey));
+  if (pHandle == NULL) {
+    tqError("tmq poll: consumer:0x%" PRIx64 " vgId:%d subkey %s not found", consumerId, vgId, req.subKey);
+    terrno = TSDB_CODE_INVALID_MSG;
+    return -1;
+  }
+
+  // 2. check re-balance status
+  taosRLockLatch(&pTq->pushLock);
+  if (pHandle->consumerId != consumerId) {
+    tqDebug("ERROR tmq poll: consumer:0x%" PRIx64 " vgId:%d, subkey %s, mismatch for saved handle consumer:0x%" PRIx64,
+            consumerId, TD_VID(pTq->pVnode), req.subKey, pHandle->consumerId);
+    terrno = TSDB_CODE_TMQ_CONSUMER_MISMATCH;
+    taosRUnLockLatch(&pTq->pushLock);
+    return -1;
+  }
+  taosRUnLockLatch(&pTq->pushLock);
+
+  taosWLockLatch(&pTq->pushLock);
+  // 3. update the epoch value
+  int32_t savedEpoch = pHandle->epoch;
+  if (savedEpoch < reqEpoch) {
+    tqDebug("tmq poll: consumer:0x%" PRIx64 " epoch update from %d to %d by poll req", consumerId, savedEpoch, reqEpoch);
+    pHandle->epoch = reqEpoch;
+  }
+  taosWUnLockLatch(&pTq->pushLock);
+
+  char buf[80];
+  tFormatOffset(buf, 80, &reqOffset);
+  tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey %s, recv poll req vgId:%d, req:%s, reqId:0x%" PRIx64,
+          consumerId, req.epoch, pHandle->subKey, vgId, buf, req.reqId);
+
+  return extractDataForMq(pTq, pHandle, &req, pMsg);
+}
+
 int32_t tqProcessDeleteSubReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen) {
   SMqVDeleteReq* pReq = (SMqVDeleteReq*)msg;
 
@@ -744,9 +905,9 @@ int32_t tqProcessDelCheckInfoReq(STQ* pTq, int64_t sversion, char* msg, int32_t
 int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen) {
   SMqRebVgReq req = {0};
   tDecodeSMqRebVgReq(msg, &req);
-  // todo lock
 
-  tqDebug("vgId:%d, tq process sub req %s", pTq->pVnode->config.vgId, req.subKey);
+  tqDebug("vgId:%d, tq process sub req %s, Id:0x%" PRIx64 " -> Id:0x%" PRIx64, pTq->pVnode->config.vgId, req.subKey,
+          req.oldConsumerId, req.newConsumerId);
 
   STqHandle* pHandle = taosHashGet(pTq->pHandle, req.subKey, strlen(req.subKey));
   if (pHandle == NULL) {
@@ -754,11 +915,13 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
       tqError("vgId:%d, build new consumer handle %s for consumer:0x%" PRIx64 ", but old consumerId is %" PRId64 "",
               req.vgId, req.subKey, req.newConsumerId, req.oldConsumerId);
     }
+
     if (req.newConsumerId == -1) {
       tqError("vgId:%d, tq invalid rebalance request, new consumerId %" PRId64 "", req.vgId, req.newConsumerId);
       taosMemoryFree(req.qmsg);
       return 0;
     }
+
     STqHandle tqHandle = {0};
     pHandle = &tqHandle;
     /*taosInitRWLatch(&pExec->lock);*/
@@ -774,8 +937,10 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
     // TODO version should be assigned and refed during preprocess
     SWalRef* pRef = walRefCommittedVer(pTq->pVnode->pWal);
     if (pRef == NULL) {
+      taosMemoryFree(req.qmsg);
       return -1;
     }
+
     int64_t ver = pRef->refVer;
     pHandle->pRef = pRef;
 
@@ -786,6 +951,7 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
         .initTqReader = true,
         .version = ver,
     };
+
     pHandle->snapshotVer = ver;
 
     if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
@@ -800,6 +966,7 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
     } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__DB) {
       pHandle->pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
       pHandle->execHandle.pExecReader = tqOpenReader(pTq->pVnode);
+
       pHandle->execHandle.execDb.pFilterOutTbUid =
           taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
       buildSnapContext(handle.meta, handle.version, 0, pHandle->execHandle.subType, pHandle->fetchMeta,
@@ -808,7 +975,6 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
       pHandle->execHandle.task = qCreateQueueExecTaskInfo(NULL, &handle, NULL, NULL);
     } else if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__TABLE) {
       pHandle->pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
-
       pHandle->execHandle.execTb.suid = req.suid;
 
       SArray* tbUidList = taosArrayInit(0, sizeof(int64_t));
@@ -828,28 +994,45 @@ int32_t tqProcessSubscribeReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
     }
 
     taosHashPut(pTq->pHandle, req.subKey, strlen(req.subKey), pHandle, sizeof(STqHandle));
-    tqDebug("try to persist handle %s consumer:0x%" PRIx64" , old consumer:0x%"PRIx64, req.subKey, pHandle->consumerId,
-            oldConsumerId);
+    tqDebug("try to persist handle %s consumer:0x%" PRIx64 " , old consumer:0x%" PRIx64, req.subKey,
+            pHandle->consumerId, oldConsumerId);
     if (tqMetaSaveHandle(pTq, req.subKey, pHandle) < 0) {
+      taosMemoryFree(req.qmsg);
       return -1;
     }
   } else {
-    // TODO handle qmsg and exec modification
-    tqInfo("update the consumer info, old consumer id:0x%"PRIx64", new Id:0x%"PRIx64, pHandle->consumerId, req.newConsumerId);
+    if (pHandle->consumerId == req.newConsumerId) {  // do nothing
+      tqInfo("vgId:%d consumer:0x%" PRIx64 " remains, no switch occurs", req.vgId, req.newConsumerId);
+      atomic_store_32(&pHandle->epoch, -1);
+      atomic_add_fetch_32(&pHandle->epoch, 1);
+      taosMemoryFree(req.qmsg);
+      return tqMetaSaveHandle(pTq, req.subKey, pHandle);
+    }
+
+    tqInfo("vgId:%d switch consumer from Id:0x%" PRIx64 " to Id:0x%" PRIx64, req.vgId, pHandle->consumerId,
+           req.newConsumerId);
+
+    taosWLockLatch(&pTq->pushLock);
     atomic_store_32(&pHandle->epoch, -1);
+
+    // remove if it has been register in the push manager, and return one empty block to consumer
+    tqRemovePushEntry(pTq, req.subKey, (int32_t) strlen(req.subKey), pHandle->consumerId, true);
+
     atomic_store_64(&pHandle->consumerId, req.newConsumerId);
     atomic_add_fetch_32(&pHandle->epoch, 1);
-    taosMemoryFree(req.qmsg);
+
     if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
       qStreamCloseTsdbReader(pHandle->execHandle.task);
     }
 
+    taosWUnLockLatch(&pTq->pushLock);
     if (tqMetaSaveHandle(pTq, req.subKey, pHandle) < 0) {
+      taosMemoryFree(req.qmsg);
       return -1;
     }
-    // close handle
   }
 
+  taosMemoryFree(req.qmsg);
   return 0;
 }
 
@@ -924,15 +1107,15 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int64_t ver) {
     pTask->tbSink.vnode = pTq->pVnode;
     pTask->tbSink.tbSinkFunc = tqSinkToTablePipeline2;
 
-    int32_t version = 1;
+    int32_t ver1 = 1;
     SMetaInfo info = {0};
     int32_t code = metaGetInfo(pTq->pVnode->pMeta, pTask->tbSink.stbUid, &info, NULL);
     if (code == TSDB_CODE_SUCCESS) {
-      version = info.skmVer;
+      ver1 = info.skmVer;
     }
 
     pTask->tbSink.pTSchema =
-        tBuildTSchema(pTask->tbSink.pSchemaWrapper->pSchema, pTask->tbSink.pSchemaWrapper->nCols, version);
+        tBuildTSchema(pTask->tbSink.pSchemaWrapper->pSchema, pTask->tbSink.pSchemaWrapper->nCols, ver1);
     if(pTask->tbSink.pTSchema == NULL) {
       return -1;
     }
diff --git a/source/dnode/vnode/src/tq/tqExec.c b/source/dnode/vnode/src/tq/tqExec.c
index f7eba3fbc1..73d3ac069f 100644
--- a/source/dnode/vnode/src/tq/tqExec.c
+++ b/source/dnode/vnode/src/tq/tqExec.c
@@ -46,11 +46,13 @@ static int32_t tqAddBlockSchemaToRsp(const STqExecHandle* pExec, STaosxRsp* pRsp
 static int32_t tqAddTbNameToRsp(const STQ* pTq, int64_t uid, STaosxRsp* pRsp, int32_t n) {
   SMetaReader mr = {0};
   metaReaderInit(&mr, pTq->pVnode->pMeta, 0);
+
   // TODO add reference to gurantee success
   if (metaGetTableEntryByUidCache(&mr, uid) < 0) {
     metaReaderClear(&mr);
     return -1;
   }
+
   for (int32_t i = 0; i < n; i++) {
     char* tbName = taosStrdup(mr.me.name);
     taosArrayPush(pRsp->blockTbName, &tbName);
@@ -83,13 +85,16 @@ int32_t tqScanData(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, STqOffs
   while (1) {
     SSDataBlock* pDataBlock = NULL;
     uint64_t     ts = 0;
+
     tqDebug("vgId:%d, tmq task start to execute", pTq->pVnode->config.vgId);
     if (qExecTask(task, &pDataBlock, &ts) < 0) {
       tqError("vgId:%d, task exec error since %s", pTq->pVnode->config.vgId, terrstr());
       return -1;
     }
+
     tqDebug("vgId:%d, tmq task executed, get %p", pTq->pVnode->config.vgId, pDataBlock);
 
+    // current scan should be stopped asap, since the rebalance occurs.
     if (pDataBlock == NULL) {
       break;
     }
@@ -99,7 +104,9 @@ int32_t tqScanData(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, STqOffs
 
     if (pOffset->type == TMQ_OFFSET__SNAPSHOT_DATA) {
       rowCnt += pDataBlock->info.rows;
-      if (rowCnt >= 4096) break;
+      if (rowCnt >= 4096) {
+        break;
+      }
     }
   }
 
diff --git a/source/dnode/vnode/src/tq/tqMeta.c b/source/dnode/vnode/src/tq/tqMeta.c
index a85e6e0a70..ce0aa144f9 100644
--- a/source/dnode/vnode/src/tq/tqMeta.c
+++ b/source/dnode/vnode/src/tq/tqMeta.c
@@ -283,7 +283,7 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
   tdbTbcMoveToFirst(pCur);
 
   while (tdbTbcNext(pCur, &pKey, &kLen, &pVal, &vLen) == 0) {
-    STqHandle handle;
+    STqHandle handle = {0};
     tDecoderInit(&decoder, (uint8_t*)pVal, vLen);
     tDecodeSTqHandle(&decoder, &handle);
     tDecoderClear(&decoder);
diff --git a/source/dnode/vnode/src/tq/tqPush.c b/source/dnode/vnode/src/tq/tqPush.c
index e80cb24216..01d8e7cf14 100644
--- a/source/dnode/vnode/src/tq/tqPush.c
+++ b/source/dnode/vnode/src/tq/tqPush.c
@@ -209,6 +209,7 @@ int32_t tqPushMsgNew(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_
 int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver) {
   void*   pReq = POINTER_SHIFT(msg, sizeof(SSubmitReq2Msg));
   int32_t len = msgLen - sizeof(SSubmitReq2Msg);
+  int32_t vgId = TD_VID(pTq->pVnode);
 
   if (msgType == TDMT_VND_SUBMIT) {
     // lock push mgr to avoid potential msg lost
@@ -217,7 +218,7 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
     int32_t numOfRegisteredPush = taosHashGetSize(pTq->pPushMgr);
     if (numOfRegisteredPush > 0) {
       tqDebug("vgId:%d tq push msg version:%" PRId64 " type:%s, head:%p, body:%p len:%d, numOfPushed consumers:%d",
-          pTq->pVnode->config.vgId, ver, TMSG_INFO(msgType), msg, pReq, len, numOfRegisteredPush);
+          vgId, ver, TMSG_INFO(msgType), msg, pReq, len, numOfRegisteredPush);
 
       SArray* cachedKeys = taosArrayInit(0, sizeof(void*));
       SArray* cachedKeyLens = taosArrayInit(0, sizeof(size_t));
@@ -239,7 +240,10 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
       void* pIter = NULL;
       while (1) {
         pIter = taosHashIterate(pTq->pPushMgr, pIter);
-        if (pIter == NULL) break;
+        if (pIter == NULL) {
+          break;
+        }
+
         STqPushEntry* pPushEntry = *(STqPushEntry**)pIter;
 
         STqHandle* pHandle = taosHashGet(pTq->pHandle, pPushEntry->subKey, strlen(pPushEntry->subKey));
@@ -248,17 +252,16 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
           continue;
         }
 
-        if (pPushEntry->dataRsp.reqOffset.version >= ver) {
-          tqDebug("vgId:%d, push entry req version %" PRId64 ", while push version %" PRId64 ", skip",
-                  pTq->pVnode->config.vgId, pPushEntry->dataRsp.reqOffset.version, ver);
+        SMqDataRsp* pRsp = pPushEntry->pDataRsp;
+        if (pRsp->reqOffset.version >= ver) {
+          tqDebug("vgId:%d, push entry req version %" PRId64 ", while push version %" PRId64 ", skip", vgId,
+                  pRsp->reqOffset.version, ver);
           continue;
         }
 
         STqExecHandle* pExec = &pHandle->execHandle;
         qTaskInfo_t    task = pExec->task;
 
-        SMqDataRsp* pRsp = &pPushEntry->dataRsp;
-
         // prepare scan mem data
         SPackedData submit = {
             .msgStr = data,
@@ -274,7 +277,7 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
           SSDataBlock* pDataBlock = NULL;
           uint64_t     ts = 0;
           if (qExecTask(task, &pDataBlock, &ts) < 0) {
-            tqDebug("vgId:%d, tq exec error since %s", pTq->pVnode->config.vgId, terrstr());
+            tqDebug("vgId:%d, tq exec error since %s", vgId, terrstr());
           }
 
           if (pDataBlock == NULL) {
@@ -285,11 +288,11 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
           pRsp->blockNum++;
         }
 
-        tqDebug("vgId:%d, tq handle push, subkey:%s, block num:%d", pTq->pVnode->config.vgId, pPushEntry->subKey,
-                pRsp->blockNum);
+        tqDebug("vgId:%d, tq handle push, subkey:%s, block num:%d", vgId, pPushEntry->subKey, pRsp->blockNum);
         if (pRsp->blockNum > 0) {
           // set offset
           tqOffsetResetToLog(&pRsp->rspOffset, ver);
+
           // remove from hash
           size_t kLen;
           void*  key = taosHashGetKey(pIter, &kLen);
@@ -311,6 +314,7 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
           tqError("vgId:%d, tq push hash remove key error, key: %s", pTq->pVnode->config.vgId, (char*)key);
         }
       }
+
       taosArrayDestroyP(cachedKeys, (FDelete)taosMemoryFree);
       taosArrayDestroy(cachedKeyLens);
       taosMemoryFree(data);
@@ -336,9 +340,9 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
       };
 
       tqDebug("tq copy write msg %p %d %" PRId64 " from %p", data, len, ver, pReq);
-
       tqProcessSubmitReq(pTq, submit);
     }
+
     if (msgType == TDMT_VND_DELETE) {
       tqProcessDelReq(pTq, POINTER_SHIFT(msg, sizeof(SMsgHead)), msgLen - sizeof(SMsgHead), ver);
     }
@@ -346,3 +350,61 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
 
   return 0;
 }
+
+int32_t tqRegisterPushEntry(STQ* pTq, void* pHandle, const SMqPollReq* pRequest, SRpcMsg* pRpcMsg,
+                            SMqDataRsp* pDataRsp, int32_t type) {
+  uint64_t   consumerId = pRequest->consumerId;
+  int32_t    vgId = TD_VID(pTq->pVnode);
+  STqHandle* pTqHandle = pHandle;
+
+  STqPushEntry* pPushEntry = taosMemoryCalloc(1, sizeof(STqPushEntry));
+  if (pPushEntry == NULL) {
+    tqDebug("tmq poll: consumer:0x%" PRIx64 ", vgId:%d failed to malloc, size:%d", consumerId, vgId,
+            (int32_t)sizeof(STqPushEntry));
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  pPushEntry->info = pRpcMsg->info;
+  memcpy(pPushEntry->subKey, pTqHandle->subKey, TSDB_SUBSCRIBE_KEY_LEN);
+
+  if (type == TMQ_MSG_TYPE__TAOSX_RSP) {
+    pPushEntry->pDataRsp =  taosMemoryCalloc(1, sizeof(STaosxRsp));
+    memcpy(pPushEntry->pDataRsp, pDataRsp, sizeof(STaosxRsp));
+  } else if (type == TMQ_MSG_TYPE__POLL_RSP) {
+    pPushEntry->pDataRsp = taosMemoryCalloc(1, sizeof(SMqDataRsp));
+    memcpy(pPushEntry->pDataRsp, pDataRsp, sizeof(SMqDataRsp));
+  }
+
+  SMqRspHead* pHead = &pPushEntry->pDataRsp->head;
+  pHead->consumerId = consumerId;
+  pHead->epoch = pRequest->epoch;
+  pHead->mqMsgType = type;
+
+  taosHashPut(pTq->pPushMgr, pTqHandle->subKey, strlen(pTqHandle->subKey), &pPushEntry, sizeof(void*));
+
+  tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s offset:%" PRId64 ", vgId:%d save handle to push mgr, total:%d", consumerId,
+          pTqHandle->subKey, pDataRsp->reqOffset.version, vgId, taosHashGetSize(pTq->pPushMgr));
+  return 0;
+}
+
+int32_t tqRemovePushEntry(STQ* pTq, const char* pKey, int32_t keyLen, uint64_t consumerId, bool rspConsumer) {
+  int32_t       vgId = TD_VID(pTq->pVnode);
+  STqPushEntry** pEntry = taosHashGet(pTq->pPushMgr, pKey, keyLen);
+
+  if (pEntry != NULL) {
+    uint64_t cId = (*pEntry)->pDataRsp->head.consumerId;
+    ASSERT(consumerId == cId);
+
+    tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s vgId:%d remove from push mgr, remains:%d", consumerId,
+            (*pEntry)->subKey, vgId, taosHashGetSize(pTq->pPushMgr) - 1);
+
+    if (rspConsumer) { // rsp the old consumer with empty block.
+      tqPushDataRsp(pTq, *pEntry);
+    }
+
+    taosHashRemove(pTq->pPushMgr, pKey, keyLen);
+  }
+
+  return 0;
+}
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index 4f67e4a1aa..6b3ac541ea 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -241,6 +241,7 @@ int64_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalCkHea
       offset++;
     }
   }
+
 END:
   taosThreadMutexUnlock(&pHandle->pWalReader->mutex);
   return code;
@@ -294,7 +295,7 @@ int32_t tqSeekVer(STqReader* pReader, int64_t ver, const char* id) {
   // todo set the correct vgId
   tqDebug("tmq poll: wal seek to version:%"PRId64" %s", ver, id);
   if (walReadSeekVer(pReader->pWalReader, ver) < 0) {
-    tqError("tmq poll: wal reader failed to seek to ver:%"PRId64" code:%s, %s", ver, tstrerror(terrno), id);
+    tqDebug("tmq poll: wal reader failed to seek to ver:%"PRId64" code:%s, %s", ver, tstrerror(terrno), id);
     return -1;
   } else {
     tqDebug("tmq poll: wal reader seek to ver:%"PRId64" %s", ver, id);
diff --git a/source/dnode/vnode/src/tq/tqSink.c b/source/dnode/vnode/src/tq/tqSink.c
index 56684b691b..dafd4d7485 100644
--- a/source/dnode/vnode/src/tq/tqSink.c
+++ b/source/dnode/vnode/src/tq/tqSink.c
@@ -619,6 +619,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
                   TD_VID(pVnode), ctbName, suid, mr.me.ctbEntry.suid);
           metaReaderClear(&mr);
           taosMemoryFree(ctbName);
+          continue;
         }
 
         tbData.uid = mr.me.uid;
diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index ab94a5e1c7..61a7801656 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -596,7 +596,8 @@ typedef struct {
   int64_t            lastTs;
 } SFSLastNextRowIter;
 
-static int32_t getNextRowFromFSLast(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs) {
+static int32_t getNextRowFromFSLast(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs, bool isLast, int16_t *aCols,
+                                    int nCols) {
   SFSLastNextRowIter *state = (SFSLastNextRowIter *)iter;
   int32_t             code = 0;
 
@@ -740,9 +741,11 @@ typedef struct SFSNextRowIter {
   int64_t            lastTs;
 } SFSNextRowIter;
 
-static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs) {
+static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs, bool isLast, int16_t *aCols,
+                                int nCols) {
   SFSNextRowIter *state = (SFSNextRowIter *)iter;
   int32_t         code = 0;
+  bool            checkRemainingRow = true;
 
   switch (state->state) {
     case SFSNEXTROW_FS:
@@ -828,8 +831,11 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
       }
     }
     case SFSNEXTROW_BLOCKDATA:
+    _next_datablock:
       if (state->iBlock >= 0) {
         SDataBlk block = {0};
+        bool     skipBlock = true;
+        int      inputColIndex = 0;
 
         tDataBlkReset(&block);
         tBlockDataReset(state->pBlockData);
@@ -848,18 +854,94 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
         *pIgnoreEarlierTs = false;
         tBlockDataReset(state->pBlockData);
         TABLEID tid = {.suid = state->suid, .uid = state->uid};
-        code = tBlockDataInit(state->pBlockData, &tid, state->pTSchema, NULL, 0);
+        code = tBlockDataInit(state->pBlockData, &tid, state->pTSchema, aCols, nCols);
         if (code) goto _err;
 
         code = tsdbReadDataBlock(*state->pDataFReader, &block, state->pBlockData);
         if (code) goto _err;
 
+        for (int colIndex = 0; colIndex < state->pBlockData->nColData; ++colIndex) {
+          SColData *pColData = &state->pBlockData->aColData[colIndex];
+
+          if (isLast && (pColData->flag & HAS_VALUE)) {
+            skipBlock = false;
+            break;
+          } else if (pColData->flag & (HAS_VALUE | HAS_NULL)) {
+            skipBlock = false;
+            break;
+          }
+        }
+
+        if (skipBlock) {
+          if (--state->iBlock < 0) {
+            tsdbDataFReaderClose(state->pDataFReader);
+            *state->pDataFReader = NULL;
+            // resetLastBlockLoadInfo(state->pLoadInfo);
+
+            if (state->aBlockIdx) {
+              // taosArrayDestroy(state->aBlockIdx);
+              tsdbBICacheRelease(state->pTsdb->biCache, state->aBlockIdxHandle);
+
+              state->aBlockIdxHandle = NULL;
+              state->aBlockIdx = NULL;
+            }
+
+            state->state = SFSNEXTROW_FILESET;
+            goto _next_fileset;
+          } else {
+            goto _next_datablock;
+          }
+        }
+
         state->nRow = state->blockData.nRow;
         state->iRow = state->nRow - 1;
 
         state->state = SFSNEXTROW_BLOCKROW;
+        checkRemainingRow = false;
       }
-    case SFSNEXTROW_BLOCKROW:
+    case SFSNEXTROW_BLOCKROW: {
+      if (checkRemainingRow) {
+        bool skipBlock = true;
+        int  inputColIndex = 0;
+        for (int colIndex = 0; colIndex < state->pBlockData->nColData; ++colIndex) {
+          SColData *pColData = &state->pBlockData->aColData[colIndex];
+          int16_t   cid = pColData->cid;
+
+          if (inputColIndex < nCols && cid == aCols[inputColIndex]) {
+            if (isLast && pColData->numOfValue != 0) {
+              skipBlock = false;
+              break;
+            } else if (pColData->numOfNone != pColData->nVal) {
+              skipBlock = false;
+              break;
+            }
+
+            ++inputColIndex;
+          }
+        }
+
+        if (skipBlock) {
+          if (--state->iBlock < 0) {
+            tsdbDataFReaderClose(state->pDataFReader);
+            *state->pDataFReader = NULL;
+            // resetLastBlockLoadInfo(state->pLoadInfo);
+
+            if (state->aBlockIdx) {
+              // taosArrayDestroy(state->aBlockIdx);
+              tsdbBICacheRelease(state->pTsdb->biCache, state->aBlockIdxHandle);
+
+              state->aBlockIdxHandle = NULL;
+              state->aBlockIdx = NULL;
+            }
+
+            state->state = SFSNEXTROW_FILESET;
+            goto _next_fileset;
+          } else {
+            goto _next_datablock;
+          }
+        }
+      }
+
       if (state->iRow >= 0) {
         state->row = tsdbRowFromBlockData(state->pBlockData, state->iRow);
         *ppRow = &state->row;
@@ -885,6 +967,7 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
       }
 
       return code;
+    }
     default:
       ASSERT(0);
       break;
@@ -960,7 +1043,8 @@ typedef struct SMemNextRowIter {
   // TSDBROW          *curRow;
 } SMemNextRowIter;
 
-static int32_t getNextRowFromMem(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs) {
+static int32_t getNextRowFromMem(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs, bool isLast, int16_t *aCols,
+                                 int nCols) {
   SMemNextRowIter *state = (SMemNextRowIter *)iter;
   int32_t          code = 0;
   *pIgnoreEarlierTs = false;
@@ -1072,7 +1156,8 @@ static bool tsdbKeyDeleted(TSDBKEY *key, SArray *pSkyline, int64_t *iSkyline) {
   return deleted;
 }
 
-typedef int32_t (*_next_row_fn_t)(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs);
+typedef int32_t (*_next_row_fn_t)(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlierTs, bool isLast, int16_t *aCols,
+                                  int nCols);
 typedef int32_t (*_next_row_clear_fn_t)(void *iter);
 
 typedef struct {
@@ -1222,12 +1307,14 @@ _err:
 }
 
 // iterate next row non deleted backward ts, version (from high to low)
-static int32_t nextRowIterGet(CacheNextRowIter *pIter, TSDBROW **ppRow, bool *pIgnoreEarlierTs) {
+static int32_t nextRowIterGet(CacheNextRowIter *pIter, TSDBROW **ppRow, bool *pIgnoreEarlierTs, bool isLast,
+                              int16_t *aCols, int nCols) {
   int code = 0;
   for (;;) {
     for (int i = 0; i < 4; ++i) {
       if (pIter->input[i].next && !pIter->input[i].stop) {
-        code = pIter->input[i].nextRowFn(pIter->input[i].iter, &pIter->input[i].pRow, &pIter->input[i].ignoreEarlierTs);
+        code = pIter->input[i].nextRowFn(pIter->input[i].iter, &pIter->input[i].pRow, &pIter->input[i].ignoreEarlierTs,
+                                         isLast, aCols, nCols);
         if (code) goto _err;
 
         if (pIter->input[i].pRow == NULL) {
@@ -1358,7 +1445,7 @@ static int32_t mergeLastRow(tb_uid_t uid, STsdb *pTsdb, bool *dup, SArray **ppCo
 
   do {
     TSDBROW *pRow = NULL;
-    nextRowIterGet(&iter, &pRow, &ignoreEarlierTs);
+    nextRowIterGet(&iter, &pRow, &ignoreEarlierTs, false, NULL, 0);
 
     if (!pRow) {
       break;
@@ -1488,11 +1575,21 @@ static int32_t mergeLast(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SCach
   bool      ignoreEarlierTs = false;
   SArray   *pColArray = NULL;
   SColVal  *pColVal = &(SColVal){0};
+  int16_t   nCols = nLastCol;
 
   int32_t code = initLastColArray(pTSchema, &pColArray);
   if (TSDB_CODE_SUCCESS != code) {
     return code;
   }
+  SArray *aColArray = taosArrayInit(nCols, sizeof(int16_t));
+  if (NULL == aColArray) {
+    taosArrayDestroy(pColArray);
+
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  for (int i = 1; i < pTSchema->numOfCols; ++i) {
+    taosArrayPush(aColArray, &pTSchema->columns[i].colId);
+  }
 
   TSKEY lastRowTs = TSKEY_MAX;
 
@@ -1502,7 +1599,7 @@ static int32_t mergeLast(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SCach
 
   do {
     TSDBROW *pRow = NULL;
-    nextRowIterGet(&iter, &pRow, &ignoreEarlierTs);
+    nextRowIterGet(&iter, &pRow, &ignoreEarlierTs, true, TARRAY_DATA(aColArray), TARRAY_SIZE(aColArray));
 
     if (!pRow) {
       break;
@@ -1547,9 +1644,14 @@ static int32_t mergeLast(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SCach
           memcpy(pCol->colVal.value.pData, pColVal->value.pData, pColVal->value.nData);
         }
 
-        if (!COL_VAL_IS_VALUE(pColVal) && !setNoneCol) {
-          noneCol = iCol;
-          setNoneCol = true;
+        if (!COL_VAL_IS_VALUE(pColVal)) {
+          if (!setNoneCol) {
+            noneCol = iCol;
+            setNoneCol = true;
+          }
+        } else {
+          int32_t aColIndex = taosArraySearchIdx(aColArray, &pColVal->cid, compareInt16Val, TD_EQ);
+          taosArrayRemove(aColArray, aColIndex);
         }
       }
       if (!setNoneCol) {
@@ -1590,6 +1692,8 @@ static int32_t mergeLast(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SCach
         }
 
         taosArraySet(pColArray, iCol, &lastCol);
+        int32_t aColIndex = taosArraySearchIdx(aColArray, &lastCol.colVal.cid, compareInt16Val, TD_EQ);
+        taosArrayRemove(aColArray, aColIndex);
       } else if (!COL_VAL_IS_VALUE(tColVal) && !COL_VAL_IS_VALUE(pColVal) && !setNoneCol) {
         noneCol = iCol;
         setNoneCol = true;
@@ -1613,6 +1717,7 @@ static int32_t mergeLast(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SCach
   //}
 
   nextRowIterClose(&iter);
+  taosArrayDestroy(aColArray);
   // taosMemoryFreeClear(pTSchema);
   return code;
 
@@ -1621,6 +1726,7 @@ _err:
   // taosMemoryFreeClear(pTSchema);
   *ppLastArray = NULL;
   taosArrayDestroy(pColArray);
+  taosArrayDestroy(aColArray);
   return code;
 }
 
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index d3ba7ad608..718b5979a1 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -510,7 +510,7 @@ int32_t vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
 int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
   vTrace("vgId:%d, msg:%p in fetch queue is processing", pVnode->config.vgId, pMsg);
   if ((pMsg->msgType == TDMT_SCH_FETCH || pMsg->msgType == TDMT_VND_TABLE_META || pMsg->msgType == TDMT_VND_TABLE_CFG ||
-       pMsg->msgType == TDMT_VND_BATCH_META) &&
+       pMsg->msgType == TDMT_VND_BATCH_META || pMsg->msgType == TDMT_VND_TMQ_CONSUME) &&
       !syncIsReadyForRead(pVnode->sync)) {
     vnodeRedirectRpcMsg(pVnode, pMsg, terrno);
     return 0;
diff --git a/source/libs/command/src/command.c b/source/libs/command/src/command.c
index c862a75ed3..58c43829cf 100644
--- a/source/libs/command/src/command.c
+++ b/source/libs/command/src/command.c
@@ -307,7 +307,7 @@ static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char* dbName, ch
 bool existLeaderRole(TAOS_ROW row, TAOS_FIELD* fields, int nFields) {
   // vgroup_id | db_name | tables | v1_dnode | v1_status | v2_dnode | v2_status | v3_dnode | v3_status | v4_dnode |
   // v4_status |  cacheload  | tsma |
-  if (nFields != 13) {
+  if (nFields != 14) {
     return false;
   }
 
diff --git a/source/libs/executor/src/executor.c b/source/libs/executor/src/executor.c
index af625be0b1..a05399615e 100644
--- a/source/libs/executor/src/executor.c
+++ b/source/libs/executor/src/executor.c
@@ -221,12 +221,12 @@ int32_t qSetSMAInput(qTaskInfo_t tinfo, const void* pBlocks, size_t numOfBlocks,
 qTaskInfo_t qCreateQueueExecTaskInfo(void* msg, SReadHandle* readers, int32_t* numOfCols, SSchemaWrapper** pSchema) {
   if (msg == NULL) {
     // create raw scan
-
     SExecTaskInfo* pTaskInfo = taosMemoryCalloc(1, sizeof(SExecTaskInfo));
     if (NULL == pTaskInfo) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return NULL;
     }
+
     setTaskStatus(pTaskInfo, TASK_NOT_COMPLETED);
 
     pTaskInfo->cost.created = taosGetTimestampUs();
@@ -715,7 +715,6 @@ void qStopTaskOperators(SExecTaskInfo* pTaskInfo) {
 
 int32_t qAsyncKillTask(qTaskInfo_t qinfo, int32_t rspCode) {
   SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)qinfo;
-
   if (pTaskInfo == NULL) {
     return TSDB_CODE_QRY_INVALID_QHANDLE;
   }
@@ -723,7 +722,6 @@ int32_t qAsyncKillTask(qTaskInfo_t qinfo, int32_t rspCode) {
   qDebug("%s execTask async killed", GET_TASKID(pTaskInfo));
 
   setTaskKilled(pTaskInfo, rspCode);
-
   qStopTaskOperators(pTaskInfo);
 
   return TSDB_CODE_SUCCESS;
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 835a70f313..192b0cbc59 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -2774,11 +2774,17 @@ int32_t buildSessionResultDataBlock(SOperatorInfo* pOperator, SStreamState* pSta
 }
 
 void qStreamCloseTsdbReader(void* task) {
-  if (task == NULL) return;
+  if (task == NULL) {
+    return;
+  }
+
   SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)task;
   SOperatorInfo* pOp = pTaskInfo->pRoot;
-  qDebug("stream close tsdb reader, reset status uid %" PRId64 " ts %" PRId64, pTaskInfo->streamInfo.lastStatus.uid,
+
+  qDebug("stream close tsdb reader, reset status uid:%" PRId64 " ts:%" PRId64, pTaskInfo->streamInfo.lastStatus.uid,
          pTaskInfo->streamInfo.lastStatus.ts);
+
+  // todo refactor, other thread may already use this read to extract data.
   pTaskInfo->streamInfo.lastStatus = (STqOffsetVal){0};
   while (pOp->numOfDownstream == 1 && pOp->pDownstream[0]) {
     SOperatorInfo* pDownstreamOp = pOp->pDownstream[0];
@@ -2786,8 +2792,19 @@ void qStreamCloseTsdbReader(void* task) {
       SStreamScanInfo* pInfo = pDownstreamOp->info;
       if (pInfo->pTableScanOp) {
         STableScanInfo* pTSInfo = pInfo->pTableScanOp->info;
+
+        setOperatorCompleted(pInfo->pTableScanOp);
+        while(pTaskInfo->owner != 0) {
+          taosMsleep(100);
+          qDebug("wait for the reader stopping");
+        }
+
         tsdbReaderClose(pTSInfo->base.dataReader);
         pTSInfo->base.dataReader = NULL;
+
+        // restore the status, todo refactor.
+        pInfo->pTableScanOp->status = OP_OPENED;
+        pTaskInfo->status = TASK_NOT_COMPLETED;
         return;
       }
     }
diff --git a/source/libs/executor/src/groupoperator.c b/source/libs/executor/src/groupoperator.c
index a05761382e..a2dc202414 100644
--- a/source/libs/executor/src/groupoperator.c
+++ b/source/libs/executor/src/groupoperator.c
@@ -999,14 +999,14 @@ void appendCreateTableRow(SStreamState* pState, SExprSupp* pTableSup, SExprSupp*
       memset(tbName, 0, TSDB_TABLE_NAME_LEN);
       int32_t len = 0;
       if (colDataIsNull_s(pTbCol, pDestBlock->info.rows - 1)) {
-        len = TMIN(sizeof(TSDB_DATA_NULL_STR), TSDB_TABLE_NAME_LEN - 1);
-        memcpy(tbName, TSDB_DATA_NULL_STR, len);
+        len = 1;
+        tbName[0] = 0;
       } else {
         void* pData = colDataGetData(pTbCol, pDestBlock->info.rows - 1);
         len = TMIN(varDataLen(pData), TSDB_TABLE_NAME_LEN - 1);
         memcpy(tbName, varDataVal(pData), len);
+        streamStatePutParName(pState, groupId, tbName);
       }
-      streamStatePutParName(pState, groupId, tbName);
       memcpy(pTmpBlock->info.parTbName, tbName, len);
       pDestBlock->info.rows--;
     } else {
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 40b9597643..29a23cd90b 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -751,7 +751,7 @@ static SSDataBlock* doTableScan(SOperatorInfo* pOperator) {
 
     while (1) {
       SSDataBlock* result = doGroupedTableScan(pOperator);
-      if (result) {
+      if (result || (pOperator->status == OP_EXEC_DONE)) {
         return result;
       }
 
@@ -985,6 +985,7 @@ void resetTableScanInfo(STableScanInfo* pTableScanInfo, STimeWindow* pWin) {
   pTableScanInfo->scanTimes = 0;
   pTableScanInfo->currentGroupId = -1;
   tsdbReaderClose(pTableScanInfo->base.dataReader);
+  qDebug("1");
   pTableScanInfo->base.dataReader = NULL;
 }
 
@@ -1143,6 +1144,7 @@ static SSDataBlock* doRangeScan(SStreamScanInfo* pInfo, SSDataBlock* pSDB, int32
       pInfo->updateWin = (STimeWindow){.skey = INT64_MIN, .ekey = INT64_MAX};
       STableScanInfo* pTableScanInfo = pInfo->pTableScanOp->info;
       tsdbReaderClose(pTableScanInfo->base.dataReader);
+      qDebug("2");
       pTableScanInfo->base.dataReader = NULL;
       return NULL;
     }
@@ -1616,6 +1618,7 @@ static SSDataBlock* doQueueScan(SOperatorInfo* pOperator) {
       if (!pTaskInfo->streamInfo.returned) {
         STableScanInfo* pTSInfo = pInfo->pTableScanOp->info;
         tsdbReaderClose(pTSInfo->base.dataReader);
+        qDebug("3");
         pTSInfo->base.dataReader = NULL;
         tqOffsetResetToLog(&pTaskInfo->streamInfo.prepareStatus, pTaskInfo->streamInfo.snapshotVer);
         qDebug("queue scan tsdb over, switch to wal ver %" PRId64 "", pTaskInfo->streamInfo.snapshotVer + 1);
@@ -1767,6 +1770,8 @@ static SSDataBlock* doStreamScan(SOperatorInfo* pOperator) {
 
     /*resetTableScanInfo(pTSInfo, pWin);*/
     tsdbReaderClose(pTSInfo->base.dataReader);
+    qDebug("4");
+
     pTSInfo->base.dataReader = NULL;
     pInfo->pTableScanOp->status = OP_OPENED;
 
@@ -1837,6 +1842,8 @@ static SSDataBlock* doStreamScan(SOperatorInfo* pOperator) {
     pTaskInfo->streamInfo.recoverStep = STREAM_RECOVER_STEP__NONE;
     STableScanInfo* pTSInfo = pInfo->pTableScanOp->info;
     tsdbReaderClose(pTSInfo->base.dataReader);
+    qDebug("5");
+
     pTSInfo->base.dataReader = NULL;
 
     pTSInfo->base.cond.startVersion = -1;
@@ -2635,6 +2642,8 @@ static SSDataBlock* getTableDataBlockImpl(void* param) {
     return pBlock;
   }
 
+  qDebug("8");
+
   tsdbReaderClose(pInfo->base.dataReader);
   pInfo->base.dataReader = NULL;
   return NULL;
@@ -3180,7 +3189,7 @@ static SSDataBlock* buildSysDbTableCount(SOperatorInfo* pOperator, STableCountSc
   size_t perfdbTableNum;
   getPerfDbMeta(NULL, &perfdbTableNum);
 
-  if (pSupp->groupByDbName) {
+  if (pSupp->groupByDbName || pSupp->groupByStbName) {
     buildSysDbGroupedTableCount(pOperator, pInfo, pSupp, pRes, infodbTableNum, perfdbTableNum);
     return (pRes->info.rows > 0) ? pRes : NULL;
   } else {
@@ -3205,11 +3214,23 @@ static void buildSysDbGroupedTableCount(SOperatorInfo* pOperator, STableCountSca
                                         STableCountScanSupp* pSupp, SSDataBlock* pRes, size_t infodbTableNum,
                                         size_t perfdbTableNum) {
   if (pInfo->currGrpIdx == 0) {
-    uint64_t groupId = calcGroupId(TSDB_INFORMATION_SCHEMA_DB, strlen(TSDB_INFORMATION_SCHEMA_DB));
+    uint64_t groupId = 0;
+    if (pSupp->groupByDbName) {
+      groupId = calcGroupId(TSDB_INFORMATION_SCHEMA_DB, strlen(TSDB_INFORMATION_SCHEMA_DB));
+    } else {
+      groupId = calcGroupId("", 0);
+    }
+    
     pRes->info.id.groupId = groupId;
     fillTableCountScanDataBlock(pSupp, TSDB_INFORMATION_SCHEMA_DB, "", infodbTableNum, pRes);
   } else if (pInfo->currGrpIdx == 1) {
-    uint64_t groupId = calcGroupId(TSDB_PERFORMANCE_SCHEMA_DB, strlen(TSDB_PERFORMANCE_SCHEMA_DB));
+    uint64_t groupId = 0;
+    if (pSupp->groupByDbName) {
+      groupId = calcGroupId(TSDB_PERFORMANCE_SCHEMA_DB, strlen(TSDB_PERFORMANCE_SCHEMA_DB));
+    } else {
+      groupId = calcGroupId("", 0);
+    }
+
     pRes->info.id.groupId = groupId;
     fillTableCountScanDataBlock(pSupp, TSDB_PERFORMANCE_SCHEMA_DB, "", perfdbTableNum, pRes);
   } else {
@@ -3247,7 +3268,7 @@ static SSDataBlock* buildVnodeDbTableCount(SOperatorInfo* pOperator, STableCount
   tNameFromString(&sn, db, T_NAME_ACCT | T_NAME_DB);
   tNameGetDbName(&sn, dbName);
 
-  if (pSupp->groupByDbName) {
+  if (pSupp->groupByDbName || pSupp->groupByStbName) {
     buildVnodeGroupedTableCount(pOperator, pInfo, pSupp, pRes, vgId, dbName);
   } else {
     buildVnodeFilteredTbCount(pOperator, pInfo, pSupp, pRes, dbName);
@@ -3308,7 +3329,10 @@ static void buildVnodeFilteredTbCount(SOperatorInfo* pOperator, STableCountScanO
 static void buildVnodeGroupedNtbTableCount(STableCountScanOperatorInfo* pInfo, STableCountScanSupp* pSupp,
                                            SSDataBlock* pRes, char* dbName) {
   char fullStbName[TSDB_TABLE_FNAME_LEN] = {0};
-  snprintf(fullStbName, TSDB_TABLE_FNAME_LEN, "%s.%s", dbName, "");
+  if (pSupp->groupByDbName) {
+    snprintf(fullStbName, TSDB_TABLE_FNAME_LEN, "%s.%s", dbName, "");
+  }
+  
   uint64_t groupId = calcGroupId(fullStbName, strlen(fullStbName));
   pRes->info.id.groupId = groupId;
   int64_t ntbNum = metaGetNtbNum(pInfo->readHandle.meta);
@@ -3323,7 +3347,12 @@ static void buildVnodeGroupedStbTableCount(STableCountScanOperatorInfo* pInfo, S
   metaGetTableSzNameByUid(pInfo->readHandle.meta, stbUid, stbName);
 
   char fullStbName[TSDB_TABLE_FNAME_LEN] = {0};
-  snprintf(fullStbName, TSDB_TABLE_FNAME_LEN, "%s.%s", dbName, stbName);
+  if (pSupp->groupByDbName) {
+    snprintf(fullStbName, TSDB_TABLE_FNAME_LEN, "%s.%s", dbName, stbName);
+  } else {
+    snprintf(fullStbName, TSDB_TABLE_FNAME_LEN, "%s", stbName);
+  }
+  
   uint64_t groupId = calcGroupId(fullStbName, strlen(fullStbName));
   pRes->info.id.groupId = groupId;
 
diff --git a/source/libs/executor/src/sysscanoperator.c b/source/libs/executor/src/sysscanoperator.c
index 24f42ff178..20766b38d6 100644
--- a/source/libs/executor/src/sysscanoperator.c
+++ b/source/libs/executor/src/sysscanoperator.c
@@ -562,15 +562,17 @@ static SSDataBlock* sysTableScanUserCols(SOperatorInfo* pOperator) {
       continue;
     }
 
-    sysTableUserColsFillOneTableCols(pInfo, dbname, &numOfRows, dataBlock, tableName, schemaRow, typeName);
-
-    if (numOfRows >= pOperator->resultInfo.capacity) {
+    if ((numOfRows + schemaRow->nCols) > pOperator->resultInfo.capacity) {
       relocateAndFilterSysTagsScanResult(pInfo, numOfRows, dataBlock, pOperator->exprSupp.pFilterInfo);
       numOfRows = 0;
 
+      metaTbCursorPrev(pInfo->pCur);
+
       if (pInfo->pRes->info.rows > 0) {
         break;
       }
+    } else {
+      sysTableUserColsFillOneTableCols(pInfo, dbname, &numOfRows, dataBlock, tableName, schemaRow, typeName);
     }
   }
 
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 5fcb24c146..fef588a503 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -3911,7 +3911,7 @@ static void doStreamStateAggImpl(SOperatorInfo* pOperator, SSDataBlock* pSDataBl
   blockDataEnsureCapacity(pAggSup->pScanBlock, rows);
   SColumnInfoData* pKeyColInfo = taosArrayGet(pSDataBlock->pDataBlock, pInfo->stateCol.slotId);
   for (int32_t i = 0; i < rows; i += winRows) {
-    if (pInfo->ignoreExpiredData && isOverdue(tsCols[i], &pInfo->twAggSup)) {
+    if (pInfo->ignoreExpiredData && isOverdue(tsCols[i], &pInfo->twAggSup) || colDataIsNull_s(pKeyColInfo, i)) {
       i++;
       continue;
     }
diff --git a/source/libs/stream/src/streamExec.c b/source/libs/stream/src/streamExec.c
index cb9774b584..cb610ad6b5 100644
--- a/source/libs/stream/src/streamExec.c
+++ b/source/libs/stream/src/streamExec.c
@@ -20,7 +20,7 @@
 static int32_t streamTaskExecImpl(SStreamTask* pTask, const void* data, SArray* pRes) {
   int32_t code;
   void*   exec = pTask->exec.executor;
-  while(atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+  while(pTask->taskLevel == TASK_LEVEL__SOURCE && atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
     qError("stream task wait for the end of fill history");
     taosMsleep(2);
     continue;
diff --git a/source/libs/stream/src/streamState.c b/source/libs/stream/src/streamState.c
index a2b3e20dbf..411726075e 100644
--- a/source/libs/stream/src/streamState.c
+++ b/source/libs/stream/src/streamState.c
@@ -130,21 +130,25 @@ SStreamState* streamStateOpen(char* path, SStreamTask* pTask, bool specPath, int
   char cfgPath[1030];
   sprintf(cfgPath, "%s/cfg", statePath);
 
+  szPage = szPage < 0 ? 4096 : szPage;
+  pages = pages < 0 ? 256 : pages;
   char cfg[1024];
   memset(cfg, 0, 1024);
   TdFilePtr pCfgFile = taosOpenFile(cfgPath, TD_FILE_READ);
   if (pCfgFile != NULL) {
-    int64_t size;
+    int64_t size = 0;
     taosFStatFile(pCfgFile, &size, NULL);
-    taosReadFile(pCfgFile, cfg, size);
-    sscanf(cfg, "%d\n%d\n", &szPage, &pages);
+    if (size > 0) {
+      taosReadFile(pCfgFile, cfg, size);
+      sscanf(cfg, "%d\n%d\n", &szPage, &pages);
+    }
   } else {
-    taosMulModeMkDir(statePath, 0755);
-    pCfgFile = taosOpenFile(cfgPath, TD_FILE_WRITE | TD_FILE_CREATE);
-    szPage = szPage < 0 ? 4096 : szPage;
-    pages = pages < 0 ? 256 : pages;
-    sprintf(cfg, "%d\n%d\n", szPage, pages);
-    taosWriteFile(pCfgFile, cfg, strlen(cfg));
+    int32_t code = taosMulModeMkDir(statePath, 0755);
+    if (code == 0) {
+      pCfgFile = taosOpenFile(cfgPath, TD_FILE_WRITE | TD_FILE_CREATE);
+      sprintf(cfg, "%d\n%d\n", szPage, pages);
+      taosWriteFile(pCfgFile, cfg, strlen(cfg));
+    }
   }
   taosCloseFile(&pCfgFile);
 
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 87144f5b99..fb367a5773 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -864,6 +864,7 @@
 ,,y,script,./test.sh -f tsim/query/forceFill.sim
 ,,y,script,./test.sh -f tsim/query/emptyTsRange.sim
 ,,y,script,./test.sh -f tsim/query/partitionby.sim
+,,y,script,./test.sh -f tsim/query/tableCount.sim 
 ,,y,script,./test.sh -f tsim/qnode/basic1.sim
 ,,y,script,./test.sh -f tsim/snode/basic1.sim
 ,,y,script,./test.sh -f tsim/mnode/basic1.sim
@@ -1096,7 +1097,7 @@
 ,,n,develop-test,python3 ./test.py -f 5-taos-tools/taosbenchmark/sample_csv_json.py
 #,,n,develop-test,python3 ./test.py -f 5-taos-tools/taosbenchmark/sml_json_alltypes.py
 ,,n,develop-test,python3 ./test.py -f 5-taos-tools/taosbenchmark/taosdemoTestQueryWithJson.py -R
-,,n,develop-test,python3 ./test.py -f 5-taos-tools/taosbenchmark/telnet_tcp.py -R
+#,,n,develop-test,python3 ./test.py -f 5-taos-tools/taosbenchmark/telnet_tcp.py -R
 
 #docs-examples test
 ,,n,docs-examples-test,bash python.sh
diff --git a/tests/requirements.txt b/tests/requirements.txt
index c6e27fd3be..5cdd9e02be 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -8,3 +8,4 @@ distro
 requests
 pexpect
 faker
+pyopenssl
diff --git a/tests/script/tsim/parser/col_arithmetic_operation.sim b/tests/script/tsim/parser/col_arithmetic_operation.sim
index 9a2ba34c85..a11b99d3d6 100644
--- a/tests/script/tsim/parser/col_arithmetic_operation.sim
+++ b/tests/script/tsim/parser/col_arithmetic_operation.sim
@@ -9,7 +9,7 @@ $dbPrefix = ca_db
 $tbPrefix = ca_tb
 $stbPrefix = ca_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $ts0 = 1537146000000
 $delta = 600000
@@ -18,6 +18,7 @@ $i = 0
 $db = $dbPrefix . $i
 $stb = $stbPrefix . $i
 
+print  drop database $db -x step1
 sql drop database $db -x step1
 step1:
 sql create database $db
diff --git a/tests/script/tsim/parser/col_arithmetic_query.sim b/tests/script/tsim/parser/col_arithmetic_query.sim
index b77dcbe498..1537db9a83 100644
--- a/tests/script/tsim/parser/col_arithmetic_query.sim
+++ b/tests/script/tsim/parser/col_arithmetic_query.sim
@@ -4,7 +4,7 @@
 $dbPrefix = ca_db
 $tbPrefix = ca_tb
 $stbPrefix = ca_stb
-$rowNum = 10000
+$rowNum = 1000
 
 $i = 0
 $db = $dbPrefix . $i
@@ -33,7 +33,7 @@ endi
 
 # asc/desc order [d.2] ======================================================
 sql select c1 *( 2 / 3 ), c1/c1 from $tb order by ts asc;
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 if $data00 != 0.000000000 then
@@ -57,7 +57,7 @@ if $data91 != 1.000000000 then
 endi
 
 sql select (c1 * 2) % 7.9, c1*1, c1*1*1, c1*c1, c1*c1*c1 from $tb order by ts desc;
-if $rows != 10000 then
+if $rows != 1000 then
  return -1
 endi
 if $data00 != 2.200000000 then
@@ -151,7 +151,7 @@ sql       select top(c1,1) - 88 from $tb
 
 # all data types [d.6] ================================================================
 sql select c2-c1*1.1, c3/c2, c4*c3, c5%c4, (c6+c4)%22, c2-c2 from $tb
-if $rows != 10000 then
+if $rows != 1000 then
  return -1
 endi
 if $data00 != 0.000000000 then
@@ -221,7 +221,7 @@ if $data90 != 76.000000000 then
   return -1
 endi
 
-sql select c4 / 99.123 from $tb limit 10 offset 9999;
+sql select c4 / 99.123 from $tb limit 10 offset 999;
 if $rows != 1 then
   return -1
 endi
@@ -237,7 +237,7 @@ sql_error select c2-c2, c3-c4, c5%c3 from $tb fill(value, 12);
 
 # constant column. [d.13]==============================================================
 sql select c1, c2+c6, 12.9876545678, 1, 1.1 from $tb
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 if $data00 != 0 then
@@ -261,7 +261,7 @@ endi
 
 # column value filter [d.14]===========================================================
 sql select c1, c2+c6, 12.9876545678, 1, 1.1 from $tb where c1<2
-if $rows != 2000 then
+if $rows != 200 then
   return -1
 endi
 if $data00 != 0 then
@@ -338,13 +338,14 @@ sql select (count(c1) * 2) % 7.9, (count(c1) * 2), ( count(1)*2) from $stb
 if $rows != 1 then
   return -1
 endi
-if $data00 != 1.800000000 then
+print  $data00 
+if $data00 != 6.500000000 then
   return -1
 endi
-if $data01 != 100000.000000000 then
+if $data01 != 10000.000000000 then
   return -1
 endi
-if $data02 != 200000.000000000 then
+if $data02 != 20000.000000000 then
   return -1
 endi
 
@@ -371,7 +372,7 @@ endi
 if $data00 != 0.000000000 then
   return -1
 endi
-if $data01 != 225000.000000000 then
+if $data01 != 22500.000000000 then
   return -1
 endi
 if $data02 != 8.077777778 then
@@ -383,7 +384,7 @@ endi
 if $data04 != 0.444444444 then
   return -1
 endi
-if $data05 != 450000.000000000 then
+if $data05 != 45000.000000000 then
   return -1
 endi
 
@@ -484,10 +485,10 @@ endi
 if $data10 != 0.000000000 then
   return -1
 endi
-if $data20 != 0.997600000 then
+if $data20 != 0.976000000 then
   return -1
 endi
-if $data90 != 7.980800000 then
+if $data90 != 7.808000000 then
   return -1
 endi
 
@@ -496,7 +497,7 @@ sql select first(c6) - sum(c6) + 12 from $stb limit 12 offset 0;
 if $rows != 1 then
   return -1
 endi
-if $data00 != -449988.000000000 then
+if $data00 != -44988.000000000 then
   return -1
 endi
 
@@ -546,7 +547,7 @@ endi
 
 # interval query [d.17]===============================================================
 sql select avg(c2)*count(c2), sum(c3)-first(c3), last(c4)+9 from ca_stb0 interval(1s)
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/commit.sim b/tests/script/tsim/parser/commit.sim
index a9bf8b26eb..84610ad379 100644
--- a/tests/script/tsim/parser/commit.sim
+++ b/tests/script/tsim/parser/commit.sim
@@ -7,7 +7,7 @@ $dbPrefix = sc_db
 $tbPrefix = sc_tb
 $stbPrefix = sc_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $loops = 5
 $log = 1
diff --git a/tests/script/tsim/parser/groupby.sim b/tests/script/tsim/parser/groupby.sim
index 68e70c5765..637b7553fd 100644
--- a/tests/script/tsim/parser/groupby.sim
+++ b/tests/script/tsim/parser/groupby.sim
@@ -7,7 +7,7 @@ $dbPrefix = group_db
 $tbPrefix = group_tb
 $mtPrefix = group_mt
 $tbNum = 8
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 
 print =============== groupby.sim
@@ -88,7 +88,7 @@ if $row != 20 then
  return -1
 endi
 
-if $data00 != 100 then
+if $data00 != 10 then
  return -1
 endi
 
@@ -96,7 +96,7 @@ if $data01 != 0 then
   return -1
 endi
 
-if $data10 != 100 then
+if $data10 != 10 then
   return -1
 endi
 
@@ -186,7 +186,7 @@ if $data04 != 0.00000 then
   return -1
 endi
 
-if $data10 != 100 then
+if $data10 != 10 then
   return -1
 endi
 
@@ -227,7 +227,7 @@ if $row != 20 then
   return -1
 endi
 
-if $data00 != 800 then
+if $data00 != 80 then
   return -1
 endi
 
@@ -235,7 +235,7 @@ if $data01 != 0 then
   return -1
 endi
 
-if $data10 != 800 then
+if $data10 != 80 then
   return -1
 endi
 
@@ -243,7 +243,7 @@ if $data11 != 1 then
   return -1
 endi
 
-if $data90 != 800 then
+if $data90 != 80 then
   return -1
 endi
 
@@ -297,7 +297,7 @@ if $data00 != $data03 then
   return -1
 endi
 
-if $data01 != @70-01-01 08:01:49.900@ then
+if $data01 != @70-01-01 08:01:40.900@ then
   return -1
 endi
 
@@ -305,7 +305,7 @@ if $data02 != @70-01-01 08:01:40.000@ then
   return -1
 endi
 
-if $data07 != 800 then
+if $data07 != 80 then
   return -1
 endi
 
@@ -313,7 +313,7 @@ if $data10 != $data13 then
   return -1
 endi
 
-if $data11 != @70-01-01 08:01:49.901@ then
+if $data11 != @70-01-01 08:01:40.901@ then
   return -1
 endi
 
@@ -321,7 +321,7 @@ if $data12 != @70-01-01 08:01:40.001@ then
   return -1
 endi
 
-if $data17 != 800 then
+if $data17 != 80 then
   return -1
 endi
 
@@ -329,7 +329,7 @@ if $data90 != $data93 then
   return -1
 endi
 
-if $data91 != @70-01-01 08:01:49.909@ then
+if $data91 != @70-01-01 08:01:40.909@ then
   return -1
 endi
 
@@ -337,11 +337,11 @@ if $data92 != @70-01-01 08:01:40.009@ then
   return -1
 endi
 
-if $data97 != 800 then
+if $data97 != 80 then
   return -1
 endi
 
-if $data95 != 7200 then
+if $data95 != 720 then
   return -1
 endi
 
@@ -358,7 +358,7 @@ if $data00 != 0 then
   return -1
 endi
 
-if $data11 != 800 then
+if $data11 != 80 then
   return -1
 endi
 
@@ -372,7 +372,7 @@ if $data00 != 0 then
   return -1
 endi
 
-if $data01 != @70-01-01 08:01:49.900@ then
+if $data01 != @70-01-01 08:01:40.900@ then
   return -1
 endi
 
@@ -389,13 +389,13 @@ if $data04 != 0 then
   return -1
 endi
 
-if $data06 != 100 then
+if $data06 != 10 then
   return -1
 endi
 
 
 sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 order by c4;
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 
@@ -420,13 +420,13 @@ if $rows != 1 then
   return -1
 endi
 
-sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 slimit 20 soffset 9990;
+sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 slimit 20 soffset 990;
 if $rows != 10 then
   return -1
 endi
 
 sql select count(*),first(ts),last(ts),min(c3),max(c3),sum(c3),avg(c3),sum(c4)/count(c4) from group_tb1 group by c4;
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 
@@ -441,32 +441,32 @@ if $rows != 100 then
   return -1
 endi
 
-if $data00 != 100 then
+if $data00 != 10 then
   return -1
 endi
 
-if $data01 != 495000 then
+if $data01 != 4500 then
   return -1
 endi
 
-if $data02 != 100 then
+if $data02 != 10 then
   return -1
 endi
 
-if $data03 != 4950.000000000 then
-  print expect 4950.000000000 , acutal $data03
+if $data03 != 450.000000000 then
+  print expect 450.000000000 , acutal $data03
   return -1
 endi
 
-if $data10 != 100 then
+if $data10 != 10 then
   return -1
 endi
 
-if $data11 != 495100 then
+if $data11 != 4510 then
   return -1
 endi
 
-if $data13 != 4951.000000000 then
+if $data13 != 451.000000000 then
   return -1
 endi
 
@@ -481,19 +481,19 @@ if $rows != 1 then
   return -1
 endi
 
-#if $data00 != 79200.000000000 then
+#if $data00 != 2160.000000000 then
 #  return -1
 #endi
 
-#if $data01 != @binary99@ then
+#if $data01 != @binary27@ then
 #  return -1
 #endi
 
-#if $data02 != 99.000000000 then
+#if $data02 != 27.000000000 then
 #  return -1
 #endi
 
-#if $data03 != 99.000000000 then
+#if $data03 != 27.000000000 then
 #  return -1
 #endi
 
@@ -503,7 +503,7 @@ if $rows != 100 then
   return -1
 endi
 
-if $data00 != 4851.000000000 then
+if $data00 != 441.000000000 then
   return -1
 endi
 
@@ -511,19 +511,19 @@ if $data01 != 0 then
   return -1
 endi
 
-if $data02 != 9900 then
+if $data02 != 900 then
   return -1
 endi
 
-if $data03 != 4950.000000000 then
+if $data03 != 450.000000000 then
   return -1
 endi
 
-if $data04 != 2886.607004772 then
+if $data04 != 287.228132327 then
   return -1
 endi
 
-if $data10 != 4852.000000000 then
+if $data10 != 442.000000000 then
   return -1
 endi
 
@@ -531,15 +531,15 @@ if $data11 != 1 then
   return -1
 endi
 
-if $data12 != 9901 then
+if $data12 != 901 then
   return -1
 endi
 
-if $data13 != 4951.000000000 then
+if $data13 != 451.000000000 then
   return -1
 endi
 
-if $data14 != 2886.607004772 then
+if $data14 != 287.228132327 then
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/interp.sim b/tests/script/tsim/parser/interp.sim
index e6512a22d7..f74a2dc624 100644
--- a/tests/script/tsim/parser/interp.sim
+++ b/tests/script/tsim/parser/interp.sim
@@ -7,7 +7,7 @@ $dbPrefix = intp_db
 $tbPrefix = intp_tb
 $stbPrefix = intp_stb
 $tbNum = 4
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $ts0 = 1537146000000
 $delta = 600000
diff --git a/tests/script/tsim/parser/join_manyblocks.sim b/tests/script/tsim/parser/join_manyblocks.sim
index 154316a03f..a40a75f50c 100644
--- a/tests/script/tsim/parser/join_manyblocks.sim
+++ b/tests/script/tsim/parser/join_manyblocks.sim
@@ -7,7 +7,7 @@ $dbPrefix = join_m_db
 $tbPrefix = join_tb
 $mtPrefix = join_mt
 $tbNum = 3
-$rowNum = 20000
+$rowNum = 2000
 $totalNum = $tbNum * $rowNum
 
 print =============== join_manyBlocks.sim
@@ -78,8 +78,8 @@ print ==============> td-3313
 sql select join_mt0.ts,join_mt0.ts,join_mt0.t1 from join_mt0, join_mt1 where join_mt0.ts=join_mt1.ts and join_mt0.t1=join_mt1.t1;
 
 print $row
-if $row != 60000 then
-  print expect 60000, actual: $row
+if $row != 6000 then
+  print expect 6000, actual: $row
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/limit1.sim b/tests/script/tsim/parser/limit1.sim
index c35617fc4f..d1a75f3ba9 100644
--- a/tests/script/tsim/parser/limit1.sim
+++ b/tests/script/tsim/parser/limit1.sim
@@ -7,7 +7,7 @@ $dbPrefix = lm1_db
 $tbPrefix = lm1_tb
 $stbPrefix = lm1_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $ts0 = 1537146000000
 $delta = 600000
diff --git a/tests/script/tsim/parser/limit1_stb.sim b/tests/script/tsim/parser/limit1_stb.sim
index be0963c0fd..1a5d57efbc 100644
--- a/tests/script/tsim/parser/limit1_stb.sim
+++ b/tests/script/tsim/parser/limit1_stb.sim
@@ -4,7 +4,7 @@ $dbPrefix = lm1_db
 $tbPrefix = lm1_tb
 $stbPrefix = lm1_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $ts0 = 1537146000000
 $delta = 600000
@@ -453,13 +453,14 @@ endi
 ### [TBASE-361]
 $offset = $rowNum / 2
 $offset = $offset + 1
+print === select _wstart, max(c1), min(c2), avg(c3), count(c4), sum(c5), spread(c6), first(c7), last(c8), first(c9) from $stb where ts >= $ts0 and ts <= $tsu and t1 > 1 and t1 < 8 interval(5m) limit $offset offset $offset
 sql select _wstart, max(c1), min(c2), avg(c3), count(c4), sum(c5), spread(c6), first(c7), last(c8), first(c9) from $stb where ts >= $ts0 and ts <= $tsu and t1 > 1 and t1 < 8 interval(5m) limit $offset offset $offset
 $val = $rowNum - $offset
 if $rows != $val then
   print expect $val, actual:$rows
   return -1
 endi
-if $data00 != @18-10-22 02:30:00.000@ then
+if $data00 != @18-09-20 20:30:00.000@ then
   return -1
 endi
 if $data01 != 1 then
diff --git a/tests/script/tsim/parser/limit1_tb.sim b/tests/script/tsim/parser/limit1_tb.sim
index 0ba8265418..e6407e3024 100644
--- a/tests/script/tsim/parser/limit1_tb.sim
+++ b/tests/script/tsim/parser/limit1_tb.sim
@@ -4,7 +4,7 @@ $dbPrefix = lm1_db
 $tbPrefix = lm1_tb
 $stbPrefix = lm1_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $ts0 = 1537146000000
 $delta = 600000
@@ -13,7 +13,7 @@ $i = 0
 $db = $dbPrefix . $i
 $stb = $stbPrefix . $i
 
-print ====== use db
+print ====== use $db
 sql use $db
 
 ##### select from table
@@ -664,9 +664,9 @@ endi
 if $data21 != 4.027681991 then
   return -1
 endi
-
+print select  _wstart, count(c1), count(c2), count(c3), count(c4), count(c5), count(c6) from $tb where ts >= $ts0 and ts <= $tsu interval(27m)
 sql select  _wstart, count(c1), count(c2), count(c3), count(c4), count(c5), count(c6) from $tb where ts >= $ts0 and ts <= $tsu interval(27m)
-if $rows != 3704 then
+if $rows != 371 then
   return -1
 endi
 if $data01 != 2 then
@@ -994,11 +994,14 @@ endi
 $offset = $rowNum / 10
 $offset = $offset * 3
 $offset = $offset - 1
+
+print === select * from $tb where c1 < 5 and c1 > 1 order by ts asc limit 3 offset $offset
 sql select * from $tb where c1 < 5 and c1 > 1 order by ts asc limit 3 offset $offset
 if $rows != 1 then
   return -1
 endi
-if $data00 != @18-11-25 18:40:00.000@ then
+print $data00
+if $data00 != @18-09-24 06:40:00.000@ then
   return -1
 endi
 if $data01 != 4 then
@@ -1012,19 +1015,19 @@ sql select * from $tb order by ts desc limit 5
 if $rows != 5 then
   return -1
 endi
-if $data00 != @18-11-25 19:30:00.000@ then
+if $data00 != @18-09-24 07:30:00.000@ then
   return -1
 endi
 if $data01 != 9 then
   return -1
 endi
-if $data10 != @18-11-25 19:20:00.000@ then
+if $data10 != @18-09-24 07:20:00.000@ then
   return -1
 endi
 if $data12 != 8 then
   return -1
 endi
-if $data20 != @18-11-25 19:10:00.000@ then
+if $data20 != @18-09-24 07:10:00.000@ then
   return -1
 endi
 if $data23 != 7.00000 then
@@ -1048,7 +1051,7 @@ endi
 if $data39 != nchar6 then
   return -1
 endi
-if $data40 != @18-11-25 18:50:00.000@ then
+if $data40 != @18-09-24 06:50:00.000@ then
   return -1
 endi
 
@@ -1056,19 +1059,19 @@ sql select * from $tb order by ts desc limit 5 offset 1
 if $rows != 5 then
   return -1
 endi
-if $data00 != @18-11-25 19:20:00.000@ then
+if $data00 != @18-09-24 07:20:00.000@ then
   return -1
 endi
 if $data01 != 8 then
   return -1
 endi
-if $data10 != @18-11-25 19:10:00.000@ then
+if $data10 != @18-09-24 07:10:00.000@ then
   return -1
 endi
 if $data12 != 7 then
   return -1
 endi
-if $data20 != @18-11-25 19:00:00.000@ then
+if $data20 != @18-09-24 07:00:00.000@ then
   return -1
 endi
 if $data23 != 6.00000 then
@@ -1092,12 +1095,13 @@ endi
 if $data39 != nchar5 then
   return -1
 endi
-if $data40 != @18-11-25 18:40:00.000@ then
+if $data40 != @18-09-24 06:40:00.000@ then
   return -1
 endi
 
 $offset = $rowNum
 $offset = $offset - 2
+print ==== select * from $tb order by ts desc limit 5 offset $offset
 sql select * from $tb order by ts desc limit 5 offset $offset
 if $rows != 2 then
   return -1
@@ -1119,16 +1123,16 @@ sql select * from $tb where c1 < 8 order by ts desc limit 3 offset 2
 if $rows != 3 then
   return -1
 endi
-if $data00 != @18-11-25 18:50:00.000@ then
+if $data00 != @18-09-24 06:50:00.000@ then
   return -1
 endi
 if $data01 != 5 then
   return -1
 endi
-if $data10 != @18-11-25 18:40:00.000@ then
+if $data10 != @18-09-24 06:40:00.000@ then
   return -1
 endi
-if $data20 != @18-11-25 18:30:00.000@ then
+if $data20 != @18-09-24 06:30:00.000@ then
   return -1
 endi
 if $data12 != 4 then
diff --git a/tests/script/tsim/parser/nestquery.sim b/tests/script/tsim/parser/nestquery.sim
index 2a363de43d..c2189d0bdd 100644
--- a/tests/script/tsim/parser/nestquery.sim
+++ b/tests/script/tsim/parser/nestquery.sim
@@ -8,7 +8,7 @@ print ======================== dnode1 start
 $dbPrefix = nest_db
 $tbPrefix = nest_tb
 $mtPrefix = nest_mt
-$tbNum = 10
+$tbNum = 3
 $rowNum = 10000
 $totalNum = $tbNum * $rowNum
 
@@ -23,7 +23,7 @@ sql create database if not exists $db
 sql use $db
 sql create table $mt (ts timestamp, c1 int, c2 float, c3 bigint, c4 smallint, c5 tinyint, c6 double, c7 bool, c8 binary(10), c9 nchar(9)) TAGS(t1 int)
 
-$half = $tbNum / 2
+$half = 2
 
 $i = 0
 while $i < $half
@@ -69,7 +69,7 @@ sql select count(*) from (select count(*) from nest_mt0 group by tbname)
 if $rows != 1 then
   return -1
 endi
-if $data00 != 10 then
+if $data00 != 4 then
   return -1
 endi
 
@@ -77,7 +77,7 @@ sql select count(*) from (select count(*) from nest_mt0 partition by tbname inte
 if $rows != 1 then
   return -1
 endi
-if $data00 != 170 then
+if $data00 != 68 then
   return -1
 endi
 
@@ -85,7 +85,7 @@ sql select sum(a) from (select count(*) a from nest_mt0 partition by tbname inte
 if $rows != 1 then
   return -1
 endi
-if $data00 != 100000 then
+if $data00 != 40000 then
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/projection_limit_offset.sim b/tests/script/tsim/parser/projection_limit_offset.sim
index 669ff3a179..2d99b0a296 100644
--- a/tests/script/tsim/parser/projection_limit_offset.sim
+++ b/tests/script/tsim/parser/projection_limit_offset.sim
@@ -7,7 +7,7 @@ $dbPrefix = group_db
 $tbPrefix = group_tb
 $mtPrefix = group_mt
 $tbNum = 8
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 
 print =============== projection_limit_offset.sim
@@ -81,199 +81,199 @@ $ts2 = $tb2 . .ts
 sql select ts from group_mt0
 print $rows
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 0;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 0;
 if $rows != 4008 then
   print expect 4008, actual:$rows
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 1;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 1;
 if $rows != 4007 then
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 101;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 101;
 print $rows
 if $rows != 3907 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.101@ then
+if $data00 != @70-01-01 08:01:40.101@ then
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 902;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 902;
 if $rows != 3106 then
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 400;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 400;
 if $rows != 3608 then
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 8000 offset 4007;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 8000 offset 4007;
 if $rows != 1 then
   return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' limit 2000 offset 4008;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' limit 2000 offset 4008;
 if $rows != 0 then
   return -1
 endi
 
 #==================================order by desc, multi vnode, limit/offset===================================
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 0;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 0;
 if $rows != 4008 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.500@ then
+if $data00 != @70-01-01 08:01:40.500@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 1;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 1;
 if $rows != 4007 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.500@ then
+if $data00 != @70-01-01 08:01:40.500@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 101;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 101;
 print $rows
 if $rows != 3907 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.488@ then
+if $data00 != @70-01-01 08:01:40.488@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 902;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 902;
 if $rows != 3106 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.388@ then
+if $data00 != @70-01-01 08:01:40.388@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 400;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 400;
 if $rows != 3608 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.450@ then
+if $data00 != @70-01-01 08:01:40.450@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 8000 offset 4007;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 8000 offset 4007;
 if $rows != 1 then
   return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.000@ then
+if $data00 != @70-01-01 08:01:40.000@ then
    return -1
 endi
 
-sql select ts from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.500' order by ts desc limit 2000 offset 4008;
+sql select ts from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.500' order by ts desc limit 2000 offset 4008;
 if $rows != 0 then
   return -1
 endi
 
 #=================================single value filter======================================
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 0;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 0;
 if $row != 8 then
    return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.000@ then
+if $data00 != @70-01-01 08:01:40.000@ then
   return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 1;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 1;
 if $row != 7 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 2;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 2;
 if $row != 6 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 4;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 4;
 if $row != 4 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 7;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 7;
 if $row != 1 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 8;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 8;
 if $row != 0 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts asc limit 10 offset 9;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts asc limit 10 offset 9;
 if $row != 0 then
    return -1
 endi
 
 #===============================single value filter, order by desc============================
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 0;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 0;
 if $row != 8 then
    return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.000@ then
+if $data00 != @70-01-01 08:01:40.000@ then
   return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 1;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 1;
 if $row != 7 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 2;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 2;
 if $row != 6 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 4;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 4;
 if $row != 4 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 7;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 7;
 if $row != 1 then
    return -1
 endi
 
-if $data00 != @70-01-01 08:01:43.000@ then
+if $data00 != @70-01-01 08:01:40.000@ then
   return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 8;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 8;
 if $row != 0 then
    return -1
 endi
 
-sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:43' and ts<='1970-1-1 8:1:43.00' order by ts desc limit 10 offset 9;
+sql select ts,tbname from group_mt0 where ts>='1970-1-1 8:1:40' and ts<='1970-1-1 8:1:40.00' order by ts desc limit 10 offset 9;
 if $row != 0 then
    return -1
 endi
 
 #[tbase-695]
-sql select ts,tbname from group_mt0 where ts>='1970-01-01 8:1:40' and ts<'1970-1-1 8:1:45' and c1<99999999 limit 100000 offset 5000
+sql select ts,tbname from group_mt0 where ts>='1970-01-01 8:1:40' and ts<'1970-1-1 8:1:40.500' and c1<99999999 limit 10000 offset 500
 print ===> $data00 $data01 $data02 $data03 $data04 $data05 $data06 $data07 $data08 $data09
 print ===> $data10 $data11 $data12 $data13 $data14 $data15 $data16 $data17 $data18 $data19
 print ===> $data20 $data21 $data22 $data23 $data24 $data25 $data26 $data27 $data28 $data29
 print ===> $data30 $data31 $data32 $data33 $data34 $data35 $data36 $data37 $data38 $data39
-if $row != 35000 then
+if $row != 3500 then
    return -1
 endi
 
@@ -301,7 +301,7 @@ print tbase-722
 sql select spread(ts) from group_tb0;
 print $data00
 
-if $data00 != 9999.000000000 then
+if $data00 != 999.000000000 then
    return -1
 endi
 
diff --git a/tests/script/tsim/parser/selectResNum.sim b/tests/script/tsim/parser/selectResNum.sim
index 43365b2af2..1131078240 100644
--- a/tests/script/tsim/parser/selectResNum.sim
+++ b/tests/script/tsim/parser/selectResNum.sim
@@ -7,10 +7,10 @@ $dbPrefix = sc_db
 $tbPrefix = sc_tb
 $stbPrefix = sc_stb
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 $loops = 200000
-$log = 10000
+$log = 1000
 $ts0 = 1537146000000
 $delta = 600000
 print ========== selectResNum.sim
diff --git a/tests/script/tsim/parser/sliding.sim b/tests/script/tsim/parser/sliding.sim
index 45a49fbc4e..1cb4cb5340 100644
--- a/tests/script/tsim/parser/sliding.sim
+++ b/tests/script/tsim/parser/sliding.sim
@@ -7,7 +7,7 @@ $dbPrefix = sliding_db
 $tbPrefix = sliding_tb
 $mtPrefix = sliding_mt
 $tbNum = 8
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 
 print =============== sliding.sim
@@ -88,25 +88,25 @@ $ts1 = $tb1 . .ts
 $ts2 = $tb2 . .ts
 
 print ===============================interval_sliding query
-sql select _wstart, count(*) from sliding_tb0 interval(30s) sliding(30s);
+sql select _wstart, count(*) from sliding_tb0 interval(3s) sliding(3s);
 if $row != 10 then
  return -1
 endi
 if $data00 != @00-01-01 00:00:00.000@ then
  return -1
 endi
-if $data01 != 1000 then
+if $data01 != 100 then
  return -1
 endi
-if $data10 != @00-01-01 00:00:30.000@ then
+if $data10 != @00-01-01 00:00:03.000@ then
  return -1
 endi
-if $data11 != 1000 then
+if $data11 != 100 then
  return -1
 endi
 
 sql select _wstart, stddev(c1) from sliding_tb0 interval(10a) sliding(10a);
-if $row != 10000 then
+if $row != 1000 then
   return -1
 endi
 if $data00 != @00-01-01 00:00:00.000@ then
@@ -123,10 +123,10 @@ if $data91 != 0.000000000 then
 endi
 
 sql select _wstart, stddev(c1),count(c2),first(c3),last(c4) from sliding_tb0 interval(10a) sliding(10a) order by _wstart desc;
-if $row != 10000 then
+if $row != 1000 then
   return -1
 endi
-if $data00 != @00-01-01 00:04:59.970@ then
+if $data00 != @00-01-01 00:00:29.970@ then
  return -1
 endi
 if $data01 != 0.000000000 then
@@ -141,7 +141,7 @@ endi
 if $data04 != 99 then
   return -1
 endi
-if $data90 != @00-01-01 00:04:59.700@ then
+if $data90 != @00-01-01 00:00:29.700@ then
   return -1
 endi
 if $data91 != 0.000000000 then
@@ -157,41 +157,41 @@ if $data94 != 90 then
   return -1
 endi
 
-sql select _wstart, count(c2),last(c4) from sliding_tb0 interval(30s) sliding(10s) order by _wstart asc;
+sql select _wstart, count(c2),last(c4) from sliding_tb0 interval(3s) sliding(1s) order by _wstart asc;
 if $row != 32 then
   return -1
 endi
-if $data00 != @99-12-31 23:59:40.000@ then
-  print expect 12-31 23:59:40.000, actual: $data00
+if $data00 != @99-12-31 23:59:58.000@ then
+  print expect 12-31 23:59:58.000, actual: $data00
   return -1
 endi
-if $data01 != 334 then
+if $data01 != 34 then
   return -1
 endi
 if $data02 != 33 then
   return -1
 endi
 
-sql select _wstart, count(c2),stddev(c3),first(c4),last(c4) from sliding_tb0 where ts>'2000-01-01 0:0:0' and ts<'2000-1-1 0:0:31' interval(30s) sliding(30s) order by _wstart asc;
+sql select _wstart, count(c2),stddev(c3),first(c4),last(c4) from sliding_tb0 where ts>'2000-01-01 0:0:0' and ts<'2000-1-1 0:0:4' interval(3s) sliding(3s) order by _wstart asc;
 if $row != 2 then
   return -1
 endi
 if $data04 != 99 then
   return -1
 endi
-if $data01 != 999 then
+if $data01 != 99 then
   return -1
 endi
-if $data02 != 28.837977152 then
+if $data02 != 28.577380332 then
   return -1
 endi
 
 #interval offset + limit
-sql select _wstart, count(c2), first(c3),stddev(c4) from sliding_tb0 interval(10a) sliding(10a) order by _wstart desc limit 10 offset 990;
+sql select _wstart, count(c2), first(c3),stddev(c4) from sliding_tb0 interval(10a) sliding(10a) order by _wstart desc limit 10 offset 90;
 if $row != 10 then
   return -1
 endi
-if $data00 != @00-01-01 00:04:30.270@ then
+if $data00 != @00-01-01 00:00:27.270@ then
   return -1
 endi
 if $data01 != 1 then
@@ -203,7 +203,7 @@ endi
 if $data03 != 0.000000000 then
   return -1
 endi
-if $data90 != @00-01-01 00:04:30.000@ then
+if $data90 != @00-01-01 00:00:27.000@ then
   return -1
 endi
 if $data91 != 1 then
@@ -217,43 +217,43 @@ if $data93 != 0.000000000 then
 endi
 
 #interval offset test
-sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(30s) order by _wstart asc limit 1000 offset 1;
+sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(3s) order by _wstart asc limit 100 offset 1;
 if $row != 9 then
   return -1
 endi
-if $data00 != @00-01-01 00:00:30.000@ then
+if $data00 != @00-01-01 00:00:03.000@ then
   return -1
 endi
-if $data01 != 1000 then
+if $data01 != 100 then
   return -1
 endi
 if $data02 != 99 then
   return -1
 endi
-if $data80 != @00-01-01 00:04:30.000@ then
+if $data80 != @00-01-01 00:00:27.000@ then
   return -1
 endi
-if $data81 != 1000 then
+if $data81 != 100 then
   return -1
 endi
 
-sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 where ts>'2000-1-1 0:0:0' and ts<'2000-1-1 0:0:31' interval(30s) sliding(30s) order by _wstart asc limit 1000 offset 0;
+sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 where ts>'2000-1-1 0:0:0' and ts<'2000-1-1 0:0:4' interval(3s) sliding(3s) order by _wstart asc limit 100 offset 0;
 if $row != 2 then
  return -1
 endi
 if $data00 != @00-01-01 00:00:00.000@ then
  return -1
 endi
-if $data01 != 999 then
+if $data01 != 99 then
  return -1
 endi
 if $data02 != 99 then
  return -1
 endi
-if $data03 != 28.837977152 then
+if $data03 != 28.577380332 then
  return -1
 endi
-if $data10 != @00-01-01 00:00:30.000@ then
+if $data10 != @00-01-01 00:00:03.000@ then
  return -1
 endi
 if $data11 != 34 then
@@ -266,14 +266,14 @@ if $data13 != 9.810708435 then
  return -1
 endi
 
-sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 1;
+sql select _wstart, count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 1;
 if $row != 15 then
  return -1
 endi
 if $data00 != @00-01-01 00:00:00.000@ then
  return -1
 endi
-if $data01 != 1000 then
+if $data01 != 100 then
  return -1
 endi
 if $data02 != 99 then
@@ -282,85 +282,85 @@ endi
 if $data03 != 28.866070048 then
  return -1
 endi
-if $data90 != @00-01-01 00:03:00.000@ then
+if $data90 != @00-01-01 00:00:18.000@ then
  return -1
 endi
-if $data91 != 1000 then
+if $data91 != 100 then
  return -1
 endi
 if $data92 != 99 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 5;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 5;
 if $row != 11 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 6;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 6;
 if $row != 10 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 7;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 7;
 if $row != 9 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 8;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 8;
 if $row != 8 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 9;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 9;
 if $row != 7 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 10;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 10;
 if $row != 6 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 11;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 11;
 if $row != 5 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 12;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 12;
 if $row != 4 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 13;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 13;
 if $row != 3 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 14;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 14;
 if $row != 2 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 15;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 15;
 if $row != 1 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(30s) sliding(20s) order by _wstart asc limit 100 offset 16;
+sql select count(c2),last(c4),stddev(c3) from sliding_tb0 interval(3s) sliding(2s) order by _wstart asc limit 100 offset 16;
 if $row != 0 then
  return -1
 endi
 
-sql select _wstart, count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(30s) order by _wstart desc;
+sql select _wstart, count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(3s) order by _wstart desc;
 if $row != 10 then
  return -1
 endi
-#00-01-01 00:04:30.000|                   10|       0|              0.000000000|              0.000000000|
-if $data00 != @00-01-01 00:04:30.000@ then
+#00-01-01 00:00:27.000 |                     1 |        0 |               0.000000000 |               0.000000000 |
+if $data00 != @00-01-01 00:00:27.000@ then
  return -1
 endi
-if $data01 != 10 then
+if $data01 != 1 then
  return -1
 endi
 if $data02 != 0 then
@@ -370,18 +370,18 @@ if $data03 != 0.000000000 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(30s) sliding(20s) order by _wstart desc limit 1 offset 15;
+sql select count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(3s) sliding(2s) order by _wstart desc limit 1 offset 14;
 if $row != 1 then
  return -1
 endi
 
-sql select count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(30s) sliding(20s) order by _wstart desc limit 1 offset 16;
+sql select count(c2),last(c4),stddev(c3),spread(c3) from sliding_tb0 where c2 = 0 interval(3s) sliding(2s) order by _wstart desc limit 1 offset 15;
 if $row != 0 then
  return -1
 endi
 
 sql select _wstart, count(c2), first(c3),stddev(c4) from sliding_tb0 interval(10a) order by _wstart desc limit 10 offset 2;
-if $data00 != @00-01-01 00:04:59.910@ then
+if $data00 != @00-01-01 00:00:29.910@ then
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/union.sim b/tests/script/tsim/parser/union.sim
index 9e7c6f77cc..dee5da96e8 100644
--- a/tests/script/tsim/parser/union.sim
+++ b/tests/script/tsim/parser/union.sim
@@ -8,7 +8,7 @@ $tbPrefix = union_tb
 $tbPrefix1 = union_tb_
 $mtPrefix = union_mt
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 
 print =============== union.sim
@@ -65,7 +65,7 @@ sql create table $mt1 (ts timestamp, c1 int, c2 float, c3 bigint, c4 smallint, c
 
 $j = 0
 $t = 1578203484000
-$rowNum = 1000
+$rowNum = 100
 $tbNum = 5
 $i = 0
 
@@ -117,7 +117,7 @@ sql_error (select c1 from union_tb0 limit 1 union all select c1 from union_tb1 l
 
 # sql with parenthese
 sql (select c1 from union_tb0)
-if $rows != 10000 then
+if $rows != 1000 then
   return -1
 endi
 if $data00 != 0 then
@@ -187,7 +187,7 @@ endi
 if $data10 != 1 then
   return -1
 endi
-if $data20 != 4950000 then
+if $data20 != 495000 then
   return -1
 endi
 
@@ -202,7 +202,7 @@ endi
 if $data10 != 1 then
   return -1
 endi
-if $data20 != 495000 then
+if $data20 != 49500 then
   return -1
 endi
 
@@ -211,7 +211,7 @@ sql (select count(*) as c from union_tb0, union_tb1 where union_tb0.ts=union_tb1
 if $rows != 11 then
   return -1
 endi
-if $data00 != 10000 then
+if $data00 != 1000 then
   return -1
 endi
 if $data10 != 9 then
@@ -227,7 +227,7 @@ endi
 print ===========================================tags union
 # two super table tag union, limit is not active during retrieve tags query
 sql (select t1 from union_mt0) union all (select t1 from union_mt0)
-if $rows != 200000 then
+if $rows != 20000 then
   return -1
 endi
 
@@ -248,7 +248,7 @@ sql (select count(*) as c from union_tb0 where ts > now + 3650d) union all (sele
 if $rows != 2 then
   return -1
 endi
-#if $data00 != 495000 then
+#if $data00 != 49500 then
 #  return -1
 #endi
 
@@ -272,7 +272,7 @@ endi
 
 # multi-vnode projection query
 sql (select c1 from union_mt0) union all select c1 from union_mt0;
-if $rows != 200000 then
+if $rows != 20000 then
  return -1
 endi
 
@@ -330,10 +330,10 @@ sql (select sum(c1) as a from union_tb0 limit 1) union all (select sum(c3) as a
 if $rows != 2 then
   return -1
 endi
-if $data00 != 495000 then
+if $data00 != 49500 then
   return -1
 endi
-if $data10 != 495000 then
+if $data10 != 49500 then
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/where.sim b/tests/script/tsim/parser/where.sim
index c1660883b6..8ab47dacaf 100644
--- a/tests/script/tsim/parser/where.sim
+++ b/tests/script/tsim/parser/where.sim
@@ -7,7 +7,7 @@ $dbPrefix = wh_db
 $tbPrefix = wh_tb
 $mtPrefix = wh_mt
 $tbNum = 10
-$rowNum = 10000
+$rowNum = 1000
 $totalNum = $tbNum * $rowNum
 
 print =============== where.sim
@@ -62,7 +62,7 @@ sql select count(*) from $tb where c1<10 and c1<>2
 if $rows != 1 then
   return -1
 endi
-if $data00 != 900 then
+if $data00 != 90 then
   return -1
 endi
 
@@ -308,9 +308,9 @@ if $row != 0 then
 endi
 
 sql select * from wh_mt0 where c3 = 1;
-print $rows -> 1000
+print $rows -> 100
 print $data00 $data01 $data02
-if $row != 1000 then
+if $row != 100 then
   return -1
 endi
 
diff --git a/tests/script/tsim/query/tableCount.sim b/tests/script/tsim/query/tableCount.sim
new file mode 100644
index 0000000000..d8d9bb9b03
--- /dev/null
+++ b/tests/script/tsim/query/tableCount.sim
@@ -0,0 +1,107 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+sql drop database if exists db1;
+sql create database db1 vgroups 3;
+sql create database db1;
+sql use db1;
+sql create stable sta (ts timestamp, f1 int, f2 binary(200)) tags(t1 int, t2 int, t3 int);
+sql create stable stb (ts timestamp, f1 int, f2 binary(200)) tags(t1 int, t2 int, t3 int);
+sql create table tba1 using sta tags(1, 1, 1);
+sql create table tba2 using sta tags(2, 2, 2);
+sql create table tba3 using sta tags(3, 3, 3);
+sql create table tba4 using sta tags(3, 3, 3);
+sql create table tba5 using sta tags(3, 3, 3);
+sql create table tba6 using sta tags(3, 3, 3);
+sql create table tba7 using sta tags(3, 3, 3);
+sql create table tba8 using sta tags(3, 3, 3);
+sql create table tbb1 using stb tags(4, 4, 4);
+sql create table tbb2 using stb tags(5, 5, 5);
+sql create table tbb3 using stb tags(6, 6, 6);
+sql create table tbb4 using stb tags(4, 4, 4);
+sql create table tbb5 using stb tags(5, 5, 5);
+sql create table tbb6 using stb tags(6, 6, 6);
+sql create table tbb7 using stb tags(7, 7, 7);
+sql create table tbb8 using stb tags(8, 8, 8);
+sql create table tbn1 (ts timestamp, f1 int);
+sql create database db2 vgroups 3;
+sql create database db2;
+sql use db2;
+sql create stable sta (ts timestamp, f1 int, f2 binary(200)) tags(t1 int, t2 int, t3 int);
+sql create stable stb (ts timestamp, f1 int, f2 binary(200)) tags(t1 int, t2 int, t3 int);
+sql create table tba1 using sta tags(1, 1, 1);
+sql create table tba2 using sta tags(2, 2, 2);
+sql create table tbb1 using stb tags(4, 4, 4);
+sql create table tbb2 using stb tags(5, 5, 5);
+sql create table tbb3 using stb tags(6, 6, 6);
+ 
+sql select count(table_name) from information_schema.ins_tables group by stable_name;
+if $rows != 3 then
+  return -1
+endi
+sql select count(table_name) from information_schema.ins_tables group by db_name;
+if $rows != 4 then
+  return -1
+endi
+sql select count(table_name) from information_schema.ins_tables group by db_name, stable_name;
+if $rows != 7 then
+  return -1
+endi
+sql select stable_name,count(table_name) from information_schema.ins_tables group by stable_name order by stable_name;
+if $rows != 3 then
+  return -1
+endi
+if $data01 != 30 then
+  return -1
+endi
+if $data11 != 10 then
+  return -1
+endi
+if $data21 != 11 then
+  return -1
+endi
+sql select db_name,count(table_name) from information_schema.ins_tables group by db_name order by db_name;
+if $rows != 4 then
+  return -1
+endi
+if $data01 != 17 then
+  return -1
+endi
+if $data11 != 5 then
+  return -1
+endi
+if $data21 != 24 then
+  return -1
+endi
+if $data31 != 5 then
+  return -1
+endi
+sql select db_name,stable_name,count(table_name) from information_schema.ins_tables group by db_name, stable_name order by db_name, stable_name;
+if $rows != 7 then
+  return -1
+endi
+if $data02 != 1 then
+  return -1
+endi
+if $data12 != 8 then
+  return -1
+endi
+if $data22 != 8 then
+  return -1
+endi
+if $data32 != 2 then
+  return -1
+endi
+if $data42 != 3 then
+  return -1
+endi
+if $data52 != 24 then
+  return -1
+endi
+if $data62 != 5 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/stream/deleteState.sim b/tests/script/tsim/stream/deleteState.sim
index dd74b73dce..c84e52067c 100644
--- a/tests/script/tsim/stream/deleteState.sim
+++ b/tests/script/tsim/stream/deleteState.sim
@@ -51,13 +51,8 @@ if $loop_count == 10 then
   return -1
 endi
 
-if $data01 != 1 then
-  print =====data01=$data01
-  goto loop1
-endi
-
-if $data02 != NULL then
-  print =====data02=$data02
+if $rows != 0 then
+  print =====rows=$rows
   goto loop1
 endi
 
diff --git a/tests/script/tsim/stream/partitionbyColumnState.sim b/tests/script/tsim/stream/partitionbyColumnState.sim
index 62262a490c..b69ab2df52 100644
--- a/tests/script/tsim/stream/partitionbyColumnState.sim
+++ b/tests/script/tsim/stream/partitionbyColumnState.sim
@@ -27,13 +27,8 @@ if $loop_count == 10 then
   return -1
 endi
 
-if $data01 != 1 then
-  print =====data01=$data01
-  goto loop0
-endi
-
-if $data02 != NULL then
-  print =====data02=$data02
+if $rows != 0 then
+  print =====rows=$rows
   goto loop0
 endi
 
diff --git a/tests/script/tsim/stream/state1.sim b/tests/script/tsim/stream/state1.sim
new file mode 100644
index 0000000000..2ae5739642
--- /dev/null
+++ b/tests/script/tsim/stream/state1.sim
@@ -0,0 +1,101 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sleep 50
+sql connect
+
+print =============== create database
+sql create database test vgroups 4;
+sql select * from information_schema.ins_databases;
+if $rows != 3 then
+  return -1
+endi
+
+print $data00 $data01 $data02
+
+sql use test;
+
+sql create table t1(ts timestamp, a int, b int , c int, d double, id int);
+
+print create stream streams1 trigger at_once IGNORE EXPIRED 0  into streamt1 as select  _wstart, count(*) c1 from t1 state_window(a);
+
+sql create stream streams1 trigger at_once IGNORE EXPIRED 0  into streamt1 as select  _wstart, count(*) c1 from t1 state_window(a);
+
+sql insert into t1(ts) values(1648791213000);
+
+$loop_count = 0
+loop0:
+
+sleep 300
+$loop_count = $loop_count + 1
+if $loop_count == 10 then
+  return -1
+endi
+
+sql select * from streamt1;
+print data00 data01
+print data10 data11
+
+if $rows != 0 then
+  print =====rows=$rows
+  goto loop0
+endi
+
+sql insert into t1 values(1648791214000,1,2,3,1.0,3);
+$loop_count = 0
+loop1:
+
+sleep 300
+$loop_count = $loop_count + 1
+if $loop_count == 10 then
+  return -1
+endi
+
+sql select * from streamt1;
+print data00 data01
+print data10 data11
+
+if $rows != 1 then
+  print =====rows=$rows
+  goto loop1
+endi
+
+sql insert into t1 values(1648791215000,2,2,3,1.0,4);
+
+$loop_count = 0
+loop2:
+
+sleep 300
+$loop_count = $loop_count + 1
+if $loop_count == 10 then
+  return -1
+endi
+
+sql select * from streamt1;
+
+if $rows != 2 then
+  print =====rows=$rows
+  goto loop2
+endi
+
+sql insert into t1(ts) values(1648791216000);
+
+$loop_count = 0
+loop3:
+
+sleep 300
+$loop_count = $loop_count + 1
+if $loop_count == 10 then
+  return -1
+endi
+
+sql select * from streamt1;
+if $rows != 2 then
+  print =====rows=$rows
+  goto loop2
+endi
+
+
+print state1 end
+
+system sh/stop_dnodes.sh
diff --git a/tests/script/tsim/valgrind/checkError7.sim b/tests/script/tsim/valgrind/checkError7.sim
index af42d1e76b..edfe8816c9 100644
--- a/tests/script/tsim/valgrind/checkError7.sim
+++ b/tests/script/tsim/valgrind/checkError7.sim
@@ -8,8 +8,9 @@ sql create database d1
 sql use d1
 
 $x = 0
-while $x < 128
+while $x < 5
   $tb = d1.s . $x
+  print create table $tb (ts timestamp, i int) tags (j int)
   sql create table $tb (ts timestamp, i int) tags (j int)
   $x = $x + 1
 endw
@@ -17,7 +18,7 @@ endw
 print ======================== describe stables
 # TODO : create stable error
 $m = 0
-while $m < 128
+while $m < 5
   $tb = s . $m
   $filter = ' . $tb
   $filter = $filter . '
@@ -36,15 +37,16 @@ print ======================== show stables
 sql show d1.stables
 
 print num of stables is $rows
-if $rows != 128 then
+if $rows != 5 then
   return -1
 endi
 
 print ======================== create table
 
 $x = 0
-while $x < 424
+while $x < 42
   $tb = d1.t . $x
+  print create table $tb using d1.s0 tags( $x )
   sql create table $tb using d1.s0 tags( $x )
   $x = $x + 1
 endw
@@ -54,7 +56,7 @@ print ======================== show stables
 sql show d1.tables
 
 print num of tables is $rows
-if $rows != 424 then
+if $rows != 42 then
   return -1
 endi
 
diff --git a/tests/system-test/0-others/information_schema.py b/tests/system-test/0-others/information_schema.py
index 720eab74c4..23ddb12d79 100644
--- a/tests/system-test/0-others/information_schema.py
+++ b/tests/system-test/0-others/information_schema.py
@@ -101,10 +101,18 @@ class TDTestCase:
                 tdSql.checkEqual(i[1],len(self.perf_list))
             elif i[0].lower() == self.dbname:
                 tdSql.checkEqual(i[1],self.tbnum+1)
+    def ins_columns_check(self):
+        tdSql.execute('create database db2 vgroups 2 replica 1')
+        tdSql.execute('create table db2.stb2 (ts timestamp,c0 int,c1 int, c2 double, c3 float, c4 binary(1000), c5 nchar(100),c7 bigint, c8 bool, c9 smallint) tags(t0 int)')
+        for i in range(2000):
+            tdSql.execute("create table db2.ctb%d using db2.stb2 tags(%d)" %(i,i))
+        tdSql.query(f'select * from information_schema.ins_columns where db_name="db2" and table_type="CHILD_TABLE"')
+        tdSql.checkEqual(20000,len(tdSql.queryResult))
+        print("number of ins_columns of child table in db2 is %s" % len(tdSql.queryResult))
     def run(self):
         self.prepare_data()
         self.count_check()
-
+        self.ins_columns_check()
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)
diff --git a/tests/system-test/6-cluster/5dnode1mnode.py b/tests/system-test/6-cluster/5dnode1mnode.py
index f21fae0d7b..d0d9372298 100644
--- a/tests/system-test/6-cluster/5dnode1mnode.py
+++ b/tests/system-test/6-cluster/5dnode1mnode.py
@@ -29,7 +29,7 @@ class TDTestCase:
         self.master_dnode = self.TDDnodes.dnodes[0]
         self.host=self.master_dnode.cfgDict["fqdn"]
         conn1 = taos.connect(self.master_dnode.cfgDict["fqdn"] , config=self.master_dnode.cfgDir)
-        tdSql.init(conn1.cursor())
+        tdSql.init(conn1.cursor(), True)
 
 
     def getBuildPath(self):
diff --git a/tests/system-test/7-tmq/subscribeDb1.py b/tests/system-test/7-tmq/subscribeDb1.py
index c5ae44214a..89bf337a20 100644
--- a/tests/system-test/7-tmq/subscribeDb1.py
+++ b/tests/system-test/7-tmq/subscribeDb1.py
@@ -123,8 +123,9 @@ class TDTestCase:
         pre_insert = "insert into "
         sql = pre_insert
 
-        t = time.time()
-        startTs = int(round(t * 1000))
+        # t = 1678609778776 #time.time()
+        t = 1600000000000
+        startTs = t #int(round(t * 1000))
         #tdLog.debug("doing insert data into stable:%s rows:%d ..."%(stbName, allRows))
         for i in range(ctbNum):
             sql += " %s_%d values "%(stbName,i)
diff --git a/utils/test/c/tmqSim.c b/utils/test/c/tmqSim.c
index 1acf50a7d8..ce61b80d41 100644
--- a/utils/test/c/tmqSim.c
+++ b/utils/test/c/tmqSim.c
@@ -386,7 +386,7 @@ void addRowsToVgroupId(SThreadInfo* pInfo, int32_t vgroupId, int32_t rows) {
   pInfo->rowsOfPerVgroups[pInfo->numOfVgroups][1] += rows;
   pInfo->numOfVgroups++;
 
-  taosFprintfFile(g_fp, "consume id %d, add one new vogroup id: %d\n", pInfo->consumerId, vgroupId);
+  taosFprintfFile(g_fp, "consume id %d, add new vgroupId:%d\n", pInfo->consumerId, vgroupId);
   if (pInfo->numOfVgroups > MAX_VGROUP_CNT) {
     taosFprintfFile(g_fp, "====consume id %d, vgroup num %d over than 32. new vgroupId: %d\n", pInfo->consumerId,
                     pInfo->numOfVgroups, vgroupId);
@@ -578,18 +578,25 @@ static int32_t data_msg_process(TAOS_RES* msg, SThreadInfo* pInfo, int32_t msgIn
   char    buf[1024];
   int32_t totalRows = 0;
 
-  // printf("topic: %s\n", tmq_get_topic_name(msg));
   int32_t     vgroupId = tmq_get_vgroup_id(msg);
   const char* dbName = tmq_get_db_name(msg);
 
   taosFprintfFile(g_fp, "consumerId: %d, msg index:%d\n", pInfo->consumerId, msgIndex);
-  taosFprintfFile(g_fp, "dbName: %s, topic: %s, vgroupId: %d\n", dbName != NULL ? dbName : "invalid table",
-                  tmq_get_topic_name(msg), vgroupId);
+  int32_t index = 0;
+  for (index = 0; index < pInfo->numOfVgroups; index++) {
+    if (vgroupId == pInfo->rowsOfPerVgroups[index][0]) {
+      break;
+    }
+  }
+
+  taosFprintfFile(g_fp, "dbName: %s, topic: %s, vgroupId:%d, currentRows:%d\n", dbName != NULL ? dbName : "invalid table",
+                  tmq_get_topic_name(msg), vgroupId, pInfo->rowsOfPerVgroups[index][1]);
 
   while (1) {
     TAOS_ROW row = taos_fetch_row(msg);
-
-    if (row == NULL) break;
+    if (row == NULL) {
+      break;
+    }
 
     TAOS_FIELD* fields = taos_fetch_fields(msg);
     int32_t     numOfFields = taos_field_count(msg);
@@ -607,7 +614,6 @@ static int32_t data_msg_process(TAOS_RES* msg, SThreadInfo* pInfo, int32_t msgIn
 #endif
 
     dumpToFileForCheck(pInfo->pConsumeRowsFile, row, fields, length, numOfFields, precision);
-
     taos_print_row(buf, row, fields, numOfFields);
 
     if (0 != g_stConfInfo.showRowFlag) {
@@ -621,7 +627,6 @@ static int32_t data_msg_process(TAOS_RES* msg, SThreadInfo* pInfo, int32_t msgIn
   }
 
   addRowsToVgroupId(pInfo, vgroupId, totalRows);
-
   return totalRows;
 }
 
@@ -730,9 +735,7 @@ void build_consumer(SThreadInfo* pInfo) {
   }
 
   pInfo->tmq = tmq_consumer_new(conf, NULL, 0);
-
   tmq_conf_destroy(conf);
-
   return;
 }
 
@@ -817,7 +820,6 @@ void loop_consume(SThreadInfo* pInfo) {
       }
 
       taos_free_result(tmqMsg);
-
       totalMsgs++;
 
       int64_t currentPrintTime = taosGetTimestampMs();