Merge branch 'develop' into szhou/feature/support-math-functions

.gitmodules

@@ -19,3 +19,6 @@
 [submodule "src/plugins/blm3"]
 	path = src/plugins/blm3
 	url = https://github.com/taosdata/blm3
+[submodule "deps/avro"]
+	path = deps/avro
+	url = https://github.com/apache/avro

CMakeLists.txt

@@ -15,6 +15,26 @@ ELSE ()
   CMAKE_MINIMUM_REQUIRED(VERSION 3.0)
 ENDIF ()
 
+if(NOT WIN32)
+  string(ASCII 27 Esc)
+  set(ColourReset "${Esc}[m")
+  set(ColourBold  "${Esc}[1m")
+  set(Red         "${Esc}[31m")
+  set(Green       "${Esc}[32m")
+  set(Yellow      "${Esc}[33m")
+  set(Blue        "${Esc}[34m")
+  set(Magenta     "${Esc}[35m")
+  set(Cyan        "${Esc}[36m")
+  set(White       "${Esc}[37m")
+  set(BoldRed     "${Esc}[1;31m")
+  set(BoldGreen   "${Esc}[1;32m")
+  set(BoldYellow  "${Esc}[1;33m")
+  set(BoldBlue    "${Esc}[1;34m")
+  set(BoldMagenta "${Esc}[1;35m")
+  set(BoldCyan    "${Esc}[1;36m")
+  set(BoldWhite   "${Esc}[1;37m")
+endif()
+
 SET(TD_ACCOUNT FALSE)
 SET(TD_ADMIN FALSE)
 SET(TD_GRANT FALSE)

Jenkinsfile

@@ -107,7 +107,77 @@ def pre_test(){
     make > /dev/null
     make install > /dev/null
     cd ${WKC}/tests
-    pip3 install ${WKC}/src/connector/python/ || echo "not install"
+    pip3 install ${WKC}/src/connector/python/ 
+    '''
+    return 1
+}
+def pre_test_noinstall(){
+    sh'hostname'
+    sh'''
+    cd ${WKC}
+    git reset --hard HEAD~10 >/dev/null
+    '''
+    script {
+      if (env.CHANGE_TARGET == 'master') {
+        sh '''
+        cd ${WKC}
+        git checkout master
+        '''
+        }
+      else if(env.CHANGE_TARGET == '2.0'){
+        sh '''
+        cd ${WKC}
+        git checkout 2.0
+        '''
+      } 
+      else{
+        sh '''
+        cd ${WKC}
+        git checkout develop
+        '''
+      }
+    }
+    sh'''
+    cd ${WKC}
+    git pull >/dev/null
+    git fetch origin +refs/pull/${CHANGE_ID}/merge
+    git checkout -qf FETCH_HEAD
+    git clean -dfx
+    git submodule update --init --recursive
+    cd ${WK}
+    git reset --hard HEAD~10
+    '''
+    script {
+      if (env.CHANGE_TARGET == 'master') {
+        sh '''
+        cd ${WK}
+        git checkout master
+        '''
+        }
+      else if(env.CHANGE_TARGET == '2.0'){
+        sh '''
+        cd ${WK}
+        git checkout 2.0
+        '''
+      } 
+      else{
+        sh '''
+        cd ${WK}
+        git checkout develop
+        '''
+      } 
+    }
+    sh '''
+    cd ${WK}
+    git pull >/dev/null 
+    
+    export TZ=Asia/Harbin
+    date
+    git clean -dfx
+    mkdir debug
+    cd debug
+    cmake .. > /dev/null
+    make > /dev/null
     '''
     return 1
 }
@@ -460,31 +530,55 @@ pipeline {
         stage('arm64centos7') {
           agent{label " arm64centos7 "}
           steps {     
-              pre_test()    
+              pre_test_noinstall()    
             }
         }
         stage('arm64centos8') {
           agent{label " arm64centos8 "}
           steps {     
-              pre_test()    
+              pre_test_noinstall()    
             }
         }
         stage('arm32bionic') {
           agent{label " arm32bionic "}
           steps {     
-              pre_test()    
+              pre_test_noinstall()    
             }
         }
         stage('arm64bionic') {
           agent{label " arm64bionic "}
           steps {     
-              pre_test()    
+              pre_test_noinstall()    
             }
         }
         stage('arm64focal') {
           agent{label " arm64focal "}
           steps {     
-              pre_test()    
+              pre_test_noinstall()    
+            }
+        }
+        stage('centos7') {
+          agent{label " centos7 "}
+          steps {     
+              pre_test_noinstall()    
+            }
+        }
+        stage('ubuntu:trusty') {
+          agent{label " trusty "}
+          steps {     
+              pre_test_noinstall()    
+            }
+        }
+        stage('ubuntu:xenial') {
+          agent{label " xenial "}
+          steps {     
+              pre_test_noinstall()    
+            }
+        }
+        stage('ubuntu:bionic') {
+          agent{label " bionic "}
+          steps {     
+              pre_test_noinstall()    
             }
         }
 

cmake/define.inc

@@ -128,7 +128,6 @@ IF (TD_APLHINE)
   MESSAGE(STATUS "aplhine is defined")
 ENDIF ()
 
-MESSAGE("before BUILD_HTTP: " ${BUILD_HTTP})
 IF ("${BUILD_HTTP}" STREQUAL "")
   IF (TD_LINUX)
     IF (TD_ARM_32)
@@ -140,7 +139,6 @@ IF ("${BUILD_HTTP}" STREQUAL "")
     SET(BUILD_HTTP "true")
   ENDIF ()
 ENDIF ()
-MESSAGE("after BUILD_HTTP: " ${BUILD_HTTP})
 
 IF (${BUILD_HTTP} MATCHES "true")
   SET(TD_BUILD_HTTP TRUE)
@@ -150,6 +148,14 @@ IF (TD_BUILD_HTTP)
   ADD_DEFINITIONS(-DHTTP_EMBEDDED)
 ENDIF ()
 
+IF ("${AVRO_SUPPORT}" MATCHES "true")
+  SET(TD_AVRO_SUPPORT TRUE)
+ENDIF ()
+
+IF (TD_AVRO_SUPPORT)
+  ADD_DEFINITIONS(-DAVRO_SUPPORT)
+ENDIF ()
+
 IF (TD_LINUX)
   ADD_DEFINITIONS(-DLINUX)
   ADD_DEFINITIONS(-D_LINUX)

cmake/input.inc

@@ -92,6 +92,8 @@ ENDIF ()
 
 SET(TD_BUILD_HTTP FALSE)
 
+SET(TD_AVRO_SUPPORT FALSE)
+
 SET(TD_MEMORY_SANITIZER FALSE)
 IF (${MEMORY_SANITIZER} MATCHES "true")
   SET(TD_MEMORY_SANITIZER TRUE)

deps/CMakeLists.txt

@@ -25,10 +25,36 @@ IF (TD_DARWIN AND TD_MQTT)
   ADD_SUBDIRECTORY(MQTT-C)
 ENDIF ()
 
+IF (AVRO_SUPPORT)
+  MESSAGE("")
+  MESSAGE("${Green} ENABLE avro format support ${ColourReset}")
+  MESSAGE("")
+  include(ExternalProject)
+  ExternalProject_Add(
+    apache-avro
+    PREFIX          "avro"
+    SOURCE_DIR      ${CMAKE_CURRENT_SOURCE_DIR}/avro/lang/c
+    BUILD_IN_SOURCE 1
+    PATCH_COMMAND
+        COMMAND   git clean -f -d
+        COMMAND   sed -i.bak -e "/TARGETS avroappend/d" ${CMAKE_CURRENT_SOURCE_DIR}/avro/lang/c/src/CMakeLists.txt
+        COMMAND   sed -i.bak -e "/TARGETS avrocat/d" ${CMAKE_CURRENT_SOURCE_DIR}/avro/lang/c/src/CMakeLists.txt
+        COMMAND   sed -i.bak -e "/TARGETS avromod/d" ${CMAKE_CURRENT_SOURCE_DIR}/avro/lang/c/src/CMakeLists.txt
+        COMMAND   sed -i.bak -e "/TARGETS avropipe/d" ${CMAKE_CURRENT_SOURCE_DIR}/avro/lang/c/src/CMakeLists.txt
+    CONFIGURE_COMMAND   cmake -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_BINARY_DIR}/build
+    )
+ELSE ()
+  MESSAGE("")
+  MESSAGE("${Yellow} NO avro format support ${ColourReset}")
+  MESSAGE("")
+ENDIF ()
+
 IF (TD_LINUX_64 AND JEMALLOC_ENABLED)
+  MESSAGE("")
+  MESSAGE("${Green} ENABLE jemalloc ${ColourReset}")
+  MESSAGE("")
   MESSAGE("setup deps/jemalloc, current source dir:" ${CMAKE_CURRENT_SOURCE_DIR})
   MESSAGE("binary dir:" ${CMAKE_BINARY_DIR})
-  include(ExternalProject)
   ExternalProject_Add(jemalloc
     PREFIX        "jemalloc"
     SOURCE_DIR    ${CMAKE_CURRENT_SOURCE_DIR}/jemalloc
@@ -39,5 +65,5 @@ IF (TD_LINUX_64 AND JEMALLOC_ENABLED)
 ENDIF ()
 
 IF (${TSZ_ENABLED} MATCHES "true")
-  ADD_SUBDIRECTORY(TSZ)  
-ENDIF()
+  ADD_SUBDIRECTORY(TSZ)
+ENDIF()
\ No newline at end of file

TSZ @ 0ca5b15a

-Subproject commit 0ca5b15a8eac40327dd737be52c926fa5675712c

avro @ a1fce29d

+Subproject commit a1fce29d9675b4dd95dfee9db32cc505d0b2227c

documentation20/cn/09.connections/docs.md

@@ -3,7 +3,7 @@
 
 ## <a class="anchor" id="grafana"></a>Grafana
 
-TDengine 能够与开源数据可视化系统 [Grafana](https://www.grafana.com/)快速集成搭建数据监测报警系统，整个过程无需任何代码开发，TDengine 中数据表中内容可以在仪表盘(DashBoard)上进行可视化展现。
+TDengine 能够与开源数据可视化系统 [Grafana](https://www.grafana.com/)快速集成搭建数据监测报警系统，整个过程无需任何代码开发，TDengine 中数据表中内容可以在仪表盘(DashBoard)上进行可视化展现。关于TDengine插件的使用您可以在[GitHub](https://github.com/taosdata/grafanaplugin/blob/master/README.md)中了解更多。
 
 ### 安装Grafana
 
@@ -11,19 +11,24 @@ TDengine 能够与开源数据可视化系统 [Grafana](https://www.grafana.com/
 
 ### 配置Grafana
 
-TDengine 的 Grafana 插件在安装包的 /usr/local/taos/connector/grafanaplugin 目录下。
-
-以 CentOS 7.2 操作系统为例，将 grafanaplugin 目录拷贝到 /var/lib/grafana/plugins 目录下，重新启动 grafana 即可。
+TDengine 的 Grafana 插件请从 <https://github.com/taosdata/grafanaplugin/releases/latest> 下载。
 
 ```bash
-sudo cp -rf /usr/local/taos/connector/grafanaplugin /var/lib/grafana/plugins/tdengine
+GF_VERSION=3.1.1
+wget https://github.com/taosdata/grafanaplugin/releases/download/v$GF_VERSION/tdengine-datasource-$GF_VERSION.zip
 ```
 
-Grafana 8.x 版本会对插件进行签名检查，因此还需要在 grafana.ini 文件中增加如下行，才能正确使用插件：
+以 CentOS 7.2 操作系统为例，将插件包解压到 /var/lib/grafana/plugins 目录下，重新启动 grafana 即可。
+
+```bash
+sudo unzip tdengine-datasource-$GF_VERSION.zip -d /var/lib/grafana/plugins/
 ```
+
+Grafana 7.3+ / 8.x 版本会对插件进行签名检查，因此还需要在 grafana.ini 文件中增加如下行，才能正确使用插件：
+
+```ini
 [plugins]
-enable_alpha = true
-allow_loading_unsigned_plugins = taosdata-tdengine-datasource
+allow_loading_unsigned_plugins = tdengine-datasource
 ```
 
 ### 使用 Grafana
@@ -62,7 +67,6 @@ allow_loading_unsigned_plugins = taosdata-tdengine-datasource
 * ALIAS BY：可设置当前查询别名。 
 * GENERATE SQL： 点击该按钮会自动替换相应变量，并生成最终执行的语句。
   
-
 按照默认提示查询当前 TDengine 部署所在服务器指定间隔系统内存平均使用量如下：
 
 ![img](../images/connections/create_dashboard2.jpg)
@@ -71,16 +75,15 @@ allow_loading_unsigned_plugins = taosdata-tdengine-datasource
 
 #### 导入 Dashboard
 
-在 Grafana 插件目录 /usr/local/taos/connector/grafanaplugin/dashboard 下提供了一个 `tdengine-grafana.json` 可导入的 dashboard。
+我们提供一个 TDengine Dashboard 可以作为 TDengine 集群的监控可视化工具使用，见 [Grafana Dashboard 15146](https://grafana.com/grafana/dashboards/15146)。
 
-点击左侧 `Import` 按钮，并上传 `tdengine-grafana.json` 文件：
+点击左侧 `Import` 按钮，选择 **Grafana.com Dashboard**,j将id `15146` 填入并加载：
 
 ![img](../images/connections/import_dashboard1.jpg)
 
 导入完成之后可看到如下效果：
 
-![img](../images/connections/import_dashboard2.jpg)
-
+![img](../images/connections/dashboard-15146.png)
 
 ## <a class="anchor" id="matlab"></a>MATLAB
 

documentation20/cn/14.devops/01.telegraf/docs.md

@@ -30,12 +30,14 @@ IT 运维监测数据通常都是对时间特性比较敏感的数据，例如
 
 
 ## 数据链路设置
-### 复制 TDengine 插件到 grafana 插件目录
-```
-1. sudo cp -r /usr/local/taos/connector/grafanaplugin /var/lib/grafana/plugins/tdengine
-2. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
-3. echo -e "[plugins]\nallow_loading_unsigned_plugins = taosdata-tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
-4. sudo systemctl restart grafana-server.service
+### 下载 TDengine 插件到 grafana 插件目录
+
+```bash
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
+2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
+4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
+5. sudo systemctl restart grafana-server.service
 ```
 
 ### 修改 /etc/telegraf/telegraf.conf 
@@ -61,7 +63,7 @@ sudo systemctl start telegraf
 
 使用 Web 浏览器访问 IP:3000 登录 Grafana 界面，系统初始用户名密码为 admin/admin。
 点击左侧齿轮图标并选择 Plugins，应该可以找到 TDengine data source 插件图标。
-点击左侧加号图标并选择 Import，按照界面提示选择 /usr/local/taos/connector/grafanaplugin/examples/telegraf/grafana/dashboards/telegraf-dashboard-v0.1.0.json 文件。如果按照 Grafana 的机器上没有安装 TDengine，可以从 https://github.com/taosdata/grafanaplugin/blob/master/examples/telegraf/grafana/dashboards/telegraf-dashboard-v0.1.0.json 下载 dashboard JSON 文件再导入。之后可以看到如下界面的仪表盘：
+点击左侧加号图标并选择 Import，从 https://github.com/taosdata/grafanaplugin/blob/master/examples/telegraf/grafana/dashboards/telegraf-dashboard-v0.1.0.json 下载 dashboard JSON 文件后导入。之后可以看到如下界面的仪表盘：
 
 ![IT-DevOps-Solutions-telegraf-dashboard.png](../../images/IT-DevOps-Solutions-telegraf-dashboard.png)
 

documentation20/cn/14.devops/02.collectd/docs.md

@@ -30,11 +30,13 @@ IT 运维监测数据通常都是对时间特性比较敏感的数据，例如
 
 ## 数据链路设置
 ### 复制 TDengine 插件到 grafana 插件目录
-```
-1. sudo cp -r /usr/local/taos/connector/grafanaplugin /var/lib/grafana/plugins/tdengine
-2. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
-3. echo -e "[plugins]\nallow_loading_unsigned_plugins = taosdata-tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
-4. sudo systemctl restart grafana-server.service
+
+```bash
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
+2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
+4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
+5. sudo systemctl restart grafana-server.service
 ```
 
 ### 配置 collectd
@@ -62,13 +64,13 @@ repeater 部分添加 { host:'<TDengine server/cluster host>', port: <port for S
 
 #### 导入 collectd 仪表盘
 
-点击左侧加号图标并选择 Import，按照界面提示选择 /usr/local/taos/connector/grafanaplugin/examples/collectd/grafana/dashboards/collect-metrics-with-tdengine-v0.1.0.json 文件。如果按照 Grafana 的机器上没有安装 TDengine，可以从 https://github.com/taosdata/grafanaplugin/blob/master/examples/collectd/grafana/dashboards/collect-metrics-with-tdengine-v0.1.0.json 下载 dashboard json 文件再导入。之后可以看到如下界面的仪表盘：
+从 https://github.com/taosdata/grafanaplugin/blob/master/examples/collectd/grafana/dashboards/collect-metrics-with-tdengine-v0.1.0.json 下载 dashboard json 文件，点击左侧加号图标并选择 Import，按照界面提示选择 JSON 文件导入。之后可以看到如下界面的仪表盘：
 
 ![IT-DevOps-Solutions-collectd-dashboard.png](../../images/IT-DevOps-Solutions-collectd-dashboard.png)
 
 #### 导入 StatsD 仪表盘
 
-点击左侧加号图标并选择 Import，按照界面提示选择 /usr/local/taos/connector/grafanaplugin/examples/statsd/dashboards/statsd-with-tdengine-v0.1.0.json 文件。如果安装 Grafana 的机器上没有安装 TDengine，可以从 https://github.com/taosdata/grafanaplugin/blob/master/examples/statsd/dashboards/statsd-with-tdengine-v0.1.0.json 下载 dashboard json 文件再导入。之后可以看到如下界面的仪表盘：
+从 https://github.com/taosdata/grafanaplugin/blob/master/examples/statsd/dashboards/statsd-with-tdengine-v0.1.0.json 下载 dashboard json 文件，点击左侧加号图标并选择 Import，按照界面提示导入JSON文件。之后可以看到如下界面的仪表盘：
 ![IT-DevOps-Solutions-statsd-dashboard.png](../../images/IT-DevOps-Solutions-statsd-dashboard.png)
 
 ## 总结

documentation20/en/09.connections/docs.md

@@ -12,12 +12,17 @@ https://grafana.com/grafana/download.
 
 ### Configure Grafana
 
-TDengine Grafana plugin is in the /usr/local/taos/connector/grafanaplugin directory. 
+Download grafana plugin from <https://github.com/taosdata/grafanaplugin/releases/latest> .
+
+```bash
+GF_VERSION=3.1.1
+wget https://github.com/taosdata/grafanaplugin/releases/download/v$GF_VERSION/tdengine-datasource-$GF_VERSION.zip
+```
 
 Taking Centos 7.2 as an example, just copy grafanaplugin directory to /var/lib/grafana/plugins directory and restart Grafana.
 
 ```bash
-sudo cp -rf /usr/local/taos/connector/grafanaplugin /var/lib/grafana/plugins/tdengine
+sudo unzip tdengine-datasource-$GF_VERSION.zip /var/lib/grafana/plugins/
 ```
 
 ### Use Grafana
@@ -64,15 +69,15 @@ According to the default prompt, query the average system memory usage at the sp
 
 #### Import Dashboard
 
-A `tdengine-grafana.json` importable dashboard is provided under the Grafana plug-in directory `/usr/local/taos/connector/grafanaplugin/dashboard`.
+We provide an example dashboard [Grafana Dashboard 15146](https://grafana.com/grafana/dashboards/15146)。
 
-Click the `Import` button on the left panel and upload the  `tdengine-grafana.json` file:
+Click the `Import` button on the left panel and load the grafana id:
 
 ![img](../images/connections/import_dashboard1.jpg)
 
 You can see as follows after Dashboard imported.
 
-![img](../images/connections/import_dashboard2.jpg)
+![img](../images/connections/dashboard-15146.png)
 
 ## <a class="anchor" id="matlab"></a> MATLAB
 

packaging/cfg/taos.cfg

@@ -203,6 +203,9 @@ keepColumnName            1
 # database name must be specified in restful interface if the following parameter is set, off by default
 # httpDbNameMandatory 1
 
+# http keep alive, default is 30 seconds
+# httpKeepAlive   30000
+
 # The following parameter is used to limit the maximum number of lines in log files.
 # max number of lines per log filters
 # numOfLogLines         10000000

packaging/check_package.sh

@@ -128,12 +128,12 @@ function check_link() {
 function check_main_path() {
     #check install main dir and all sub dir
     main_dir=("" "cfg" "bin" "connector" "driver" "examples" "include" "init.d")
-    for i in ${main_dir[@]};do
+    for i in "${main_dir[@]}";do
         check_file ${install_main_dir} $i
     done
     if [ "$verMode" == "cluster" ]; then
         nginx_main_dir=("admin" "conf" "html" "sbin" "logs")
-        for i in ${nginx_main_dir[@]};do
+        for i in "${nginx_main_dir[@]}";do
             check_file ${nginx_dir}  $i
         done
     fi
@@ -143,11 +143,11 @@ function check_main_path() {
 function check_bin_path() {
     # check install bin dir and all sub dir
     bin_dir=("taos" "taosd" "blm3" "taosdemo" "taosdump" "remove.sh" "tarbitrator" "set_core.sh")
-    for i in ${bin_dir[@]};do
+    for i in "${bin_dir[@]}";do
         check_file ${sbin_dir} $i
     done
     lbin_dir=("taos" "taosd" "blm3" "taosdemo" "taosdump" "rmtaos" "tarbitrator" "set_core")
-    for i in ${lbin_dir[@]};do
+    for i in "${lbin_dir[@]}";do
         check_link ${bin_link_dir}/$i
     done
     if [ "$verMode" == "cluster" ]; then
@@ -171,7 +171,7 @@ function check_lib_path() {
 function check_header_path() {
 	# check all header
 	header_dir=("taos.h" "taoserror.h")
-    for i in ${header_dir[@]};do
+    for i in "${header_dir[@]}";do
         check_link ${inc_link_dir}/$i
     done
     echo -e "Check bin  path:\033[32mOK\033[0m!"

packaging/deb/makedeb.sh

@@ -68,12 +68,6 @@ cp ${compile_dir}/build/lib/${libfile}              ${pkg_dir}${install_home_pat
 cp ${compile_dir}/../src/inc/taos.h                 ${pkg_dir}${install_home_path}/include
 cp ${compile_dir}/../src/inc/taoserror.h            ${pkg_dir}${install_home_path}/include
 cp -r ${top_dir}/tests/examples/*                   ${pkg_dir}${install_home_path}/examples
-if [ -d "${top_dir}/src/connector/grafanaplugin/dist" ]; then
-  cp -r ${top_dir}/src/connector/grafanaplugin/dist   ${pkg_dir}${install_home_path}/connector/grafanaplugin
-else
-  echo "grafanaplugin bundled directory not found!"
-  exit 1
-fi
 cp -r ${top_dir}/src/connector/python               ${pkg_dir}${install_home_path}/connector
 cp -r ${top_dir}/src/connector/go                   ${pkg_dir}${install_home_path}/connector
 cp -r ${top_dir}/src/connector/nodejs               ${pkg_dir}${install_home_path}/connector

packaging/release.sh

@@ -151,7 +151,7 @@ function vercomp () {
 }
 
 # 1. check version information
-if (( ! is_valid_version $verNumber ) || ( ! is_valid_version $verNumberComp ) || [[ "$(vercomp $verNumber $verNumberComp)" == '2' ]]); then
+if ( ( ! is_valid_version $verNumber ) || ( ! is_valid_version $verNumberComp ) || [[ "$(vercomp $verNumber $verNumberComp)" == '2' ]] ); then
   echo "please enter correct version"
   exit 0
 fi

packaging/rpm/makerpm.sh

@@ -36,7 +36,7 @@ local cur_dir
 cd $1
 cur_dir=$(pwd)
 
-for dirlist in $(ls ${cur_dir}); do
+for dirlist in "$(ls ${cur_dir})"; do
   if test -d ${dirlist}; then
     cd ${dirlist}
     cp_rpm_package ${cur_dir}/${dirlist}

packaging/rpm/tdengine.spec

@@ -73,12 +73,6 @@ cp %{_compiledir}/build/bin/taosdump                %{buildroot}%{homepath}/bin
 cp %{_compiledir}/build/lib/${libfile}              %{buildroot}%{homepath}/driver
 cp %{_compiledir}/../src/inc/taos.h                 %{buildroot}%{homepath}/include
 cp %{_compiledir}/../src/inc/taoserror.h            %{buildroot}%{homepath}/include
-if [ -d %{_compiledir}/../src/connector/grafanaplugin/dist ]; then
-    cp -r %{_compiledir}/../src/connector/grafanaplugin/dist %{buildroot}%{homepath}/connector/grafanaplugin
-else
-    echo grafanaplugin bundled directory not found!
-    exit 1
-fi
 cp -r %{_compiledir}/../src/connector/python        %{buildroot}%{homepath}/connector
 cp -r %{_compiledir}/../src/connector/go            %{buildroot}%{homepath}/connector
 cp -r %{_compiledir}/../src/connector/nodejs        %{buildroot}%{homepath}/connector

packaging/tools/check_os.sh

-# /bin/bash
+#!/bin/bash
 #
 CSI=$(echo -e "\033[")
 CRED="${CSI}1;31m"

packaging/tools/install.sh

@@ -303,7 +303,7 @@ function add_newHostname_to_hosts() {
   iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
   arr=($iphost)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
     if [[ "$s" == "$localIp" ]]; then
       return
@@ -358,7 +358,7 @@ function is_correct_ipaddr() {
   IFS=" "
   arr=($iplist)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
    if [[ "$s" == "$newIp" ]]; then
      return 0

packaging/tools/install_power.sh

@@ -287,7 +287,7 @@ function add_newHostname_to_hosts() {
   iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
   arr=($iphost)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
     if [[ "$s" == "$localIp" ]]; then
       return
@@ -342,7 +342,7 @@ function is_correct_ipaddr() {
   IFS=" "
   arr=($iplist)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
    if [[ "$s" == "$newIp" ]]; then
      return 0

packaging/tools/install_pro.sh

@@ -278,7 +278,7 @@ function add_newHostname_to_hosts() {
   iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
   arr=($iphost)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
     if [[ "$s" == "$localIp" ]]; then
       return
@@ -305,7 +305,7 @@ function set_hostname() {
    echo "set hostname fail!"
    return
   fi
-  
+
   #ubuntu/centos /etc/hostname
   if [[ -e /etc/hostname ]]; then
     ${csudo} echo $newHostname > /etc/hostname   ||:
@@ -330,7 +330,7 @@ function is_correct_ipaddr() {
   IFS=" "
   arr=($iplist)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
    if [[ "$s" == "$newIp" ]]; then
      return 0

packaging/tools/install_tq.sh

@@ -287,7 +287,7 @@ function add_newHostname_to_hosts() {
   iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
   arr=($iphost)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
     if [[ "$s" == "$localIp" ]]; then
       return
@@ -342,7 +342,7 @@ function is_correct_ipaddr() {
   IFS=" "
   arr=($iplist)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
    if [[ "$s" == "$newIp" ]]; then
      return 0

packaging/tools/make_install.sh

@@ -212,7 +212,8 @@ function install_jemalloc() {
         fi
         if [ -f "${binary_dir}/build/include/jemalloc/jemalloc.h" ]; then
             /usr/bin/install -c -d /usr/local/include/jemalloc
-            /usr/bin/install -c -m 644 ${binary_dir}/build/include/jemalloc/jemalloc.h /usr/local/include/jemalloc
+            /usr/bin/install -c -m 644 ${binary_dir}/build/include/jemalloc/jemalloc.h\
+                /usr/local/include/jemalloc
         fi
         if [ -f "${binary_dir}/build/lib/libjemalloc.so.2" ]; then
             /usr/bin/install -c -d /usr/local/lib
@@ -225,23 +226,47 @@ function install_jemalloc() {
                 /usr/bin/install -c -m 755 ${binary_dir}/build/lib/libjemalloc_pic.a /usr/local/lib
             if [ -f "${binary_dir}/build/lib/pkgconfig/jemalloc.pc" ]; then
                 /usr/bin/install -c -d /usr/local/lib/pkgconfig
-                /usr/bin/install -c -m 644 ${binary_dir}/build/lib/pkgconfig/jemalloc.pc /usr/local/lib/pkgconfig
+                /usr/bin/install -c -m 644 ${binary_dir}/build/lib/pkgconfig/jemalloc.pc\
+                    /usr/local/lib/pkgconfig
+            fi
+            if [ -d /etc/ld.so.conf.d ]; then
+                echo "/usr/local/lib" | ${csudo} tee /etc/ld.so.conf.d/jemalloc.conf
+                ${csudo} ldconfig
+            else
+                echo "/etc/ld.so.conf.d not found!"
             fi
         fi
         if [ -f "${binary_dir}/build/share/doc/jemalloc/jemalloc.html" ]; then
             /usr/bin/install -c -d /usr/local/share/doc/jemalloc
-            /usr/bin/install -c -m 644 ${binary_dir}/build/share/doc/jemalloc/jemalloc.html /usr/local/share/doc/jemalloc
+            /usr/bin/install -c -m 644 ${binary_dir}/build/share/doc/jemalloc/jemalloc.html\
+                /usr/local/share/doc/jemalloc
         fi
         if [ -f "${binary_dir}/build/share/man/man3/jemalloc.3" ]; then
             /usr/bin/install -c -d /usr/local/share/man/man3
-            /usr/bin/install -c -m 644 ${binary_dir}/build/share/man/man3/jemalloc.3 /usr/local/share/man/man3
+            /usr/bin/install -c -m 644 ${binary_dir}/build/share/man/man3/jemalloc.3\
+                /usr/local/share/man/man3
         fi
 
-        if [ -d /etc/ld.so.conf.d ]; then
-            echo "/usr/local/lib" | ${csudo} tee /etc/ld.so.conf.d/jemalloc.conf
-            ${csudo} ldconfig
-        else
-            echo "/etc/ld.so.conf.d not found!"
+    fi
+}
+
+function install_avro() {
+    if [ "$osType" != "Darwin" ]; then
+        if [ -f "${binary_dir}/build/$1/libavro.so.23.0.0" ]; then
+            /usr/bin/install -c -d /usr/local/$1
+            /usr/bin/install -c -m 755 ${binary_dir}/build/$1/libavro.so.23.0.0 /usr/local/$1
+            ln -sf libavro.so.23.0.0 /usr/local/$1/libavro.so.23
+            ln -sf libavro.so.23 /usr/local/$1/libavro.so
+            /usr/bin/install -c -d /usr/local/$1
+            [ -f ${binary_dir}/build/$1/libavro.a ] &&
+                /usr/bin/install -c -m 755 ${binary_dir}/build/$1/libavro.a /usr/local/$1
+
+            if [ -d /etc/ld.so.conf.d ]; then
+                echo "/usr/local/$1" | ${csudo} tee /etc/ld.so.conf.d/libavro.conf
+                ${csudo} ldconfig
+            else
+                echo "/etc/ld.so.conf.d not found!"
+            fi
         fi
     fi
 }
@@ -292,6 +317,8 @@ function install_lib() {
     fi
 
     install_jemalloc
+    install_avro lib
+    install_avro lib64
 
     if [ "$osType" != "Darwin" ]; then
         ${csudo} ldconfig
@@ -381,11 +408,6 @@ function install_data() {
 }
 
 function install_connector() {
-    if [ -d "${source_dir}/src/connector/grafanaplugin/dist" ]; then
-        ${csudo} cp -rf ${source_dir}/src/connector/grafanaplugin/dist ${install_main_dir}/connector/grafanaplugin
-    else
-        echo "WARNING: grafanaplugin bundled dir not found, please check if want to use it!"
-    fi
     if find ${source_dir}/src/connector/go -mindepth 1 -maxdepth 1 | read; then
         ${csudo} cp -r ${source_dir}/src/connector/go ${install_main_dir}/connector
     else

packaging/tools/makeclient.sh

@@ -150,11 +150,6 @@ if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   if [ "$osType" != "Darwin" ]; then
     cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
   fi
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bundled dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makeclient_power.sh

@@ -210,11 +210,6 @@ if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   if [ "$osType" != "Darwin" ]; then
     cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
   fi
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bunlded dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makeclient_pro.sh

@@ -172,11 +172,6 @@ if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   if [ "$osType" != "Darwin" ]; then
     cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
   fi
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bunlded dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makeclient_tq.sh

@@ -177,11 +177,6 @@ if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   if [ "$osType" != "Darwin" ]; then
     cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
   fi
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bunlded dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makepkg.sh

@@ -195,11 +195,6 @@ connector_dir="${code_dir}/connector"
 mkdir -p ${install_dir}/connector
 if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   cp ${build_dir}/lib/*.jar            ${install_dir}/connector ||:
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bundled dir not found, please check if you want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makepkg_power.sh

@@ -168,11 +168,6 @@ mkdir -p ${install_dir}/connector
 if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
 
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bundled dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/makepkg_pro.sh

@@ -154,11 +154,6 @@ mkdir -p ${install_dir}/driver && cp ${lib_files} ${install_dir}/driver && echo
 #if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
 #  cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
 
-#  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-#    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-#  else
-#    echo "WARNING: grafanaplugin bundled dir not found, please check if want to use it!"
-#  fi
 #  if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
 #    cp -r ${connector_dir}/go ${install_dir}/connector
 #  else

packaging/tools/makepkg_tq.sh

@@ -168,11 +168,6 @@ mkdir -p ${install_dir}/connector
 if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
   cp ${build_dir}/lib/*.jar      ${install_dir}/connector ||:
 
-  if [ -d "${connector_dir}/grafanaplugin/dist" ]; then
-    cp -r ${connector_dir}/grafanaplugin/dist ${install_dir}/connector/grafanaplugin
-  else
-    echo "WARNING: grafanaplugin bundled dir not found, please check if want to use it!"
-  fi
   if find ${connector_dir}/go -mindepth 1 -maxdepth 1 | read; then
     cp -r ${connector_dir}/go ${install_dir}/connector
   else

packaging/tools/post.sh

@@ -127,7 +127,7 @@ function add_newHostname_to_hosts() {
   iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
   arr=($iphost)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
     if [[ "$s" == "$localIp" ]]; then
       return
@@ -182,7 +182,7 @@ function is_correct_ipaddr() {
   IFS=" "
   arr=($iplist)
   IFS="$OLD_IFS"
-  for s in ${arr[@]}
+  for s in "${arr[@]}"
   do
    if [[ "$s" == "$newIp" ]]; then
      return 0

src/client/src/tscSQLParser.c

@@ -2501,6 +2501,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
   const char* msg12 = "parameter is out of range [1, 100]";
   const char* msg13 = "parameter list required";
   const char* msg14 = "third parameter algorithm must be 'default' or 't-digest'";
+  const char* msg15 = "parameter is out of range [1, 1000]";
 
   switch (functionId) {
     case TSDB_FUNC_COUNT: {
@@ -2948,11 +2949,15 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
           }
         }
       } else if (functionId == TSDB_FUNC_MAVG || functionId == TSDB_FUNC_SAMPLE) {
+        if (pVariant->nType != TSDB_DATA_TYPE_BIGINT) {
+          return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
+        }
+
         tVariantDump(pVariant, val, TSDB_DATA_TYPE_BIGINT, true);
 
-        int64_t numRowsSelected = GET_INT32_VAL(val);
+        int64_t numRowsSelected = GET_INT64_VAL(val);
         if (numRowsSelected <= 0 || numRowsSelected > 1000) {
-          return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg12);
+          return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg15);
         }
 
         // todo REFACTOR

src/common/inc/tglobal.h

@@ -46,7 +46,7 @@ extern int64_t  tsDnodeStartTime;
 // common
 extern int      tsRpcTimer;
 extern int      tsRpcMaxTime;
-extern int      tsRpcForceTcp; // all commands go to tcp protocol if this is enabled
+extern int      tsRpcForceTcp;  // all commands go to tcp protocol if this is enabled
 extern int32_t  tsMaxConnections;
 extern int32_t  tsMaxShellConns;
 extern int32_t  tsShellActivityTimer;
@@ -57,19 +57,20 @@ extern float    tsRatioOfQueryCores;
 extern int8_t   tsDaylight;
 extern char     tsTimezone[];
 extern char     tsLocale[];
-extern char     tsCharset[];            // default encode string
+extern char     tsCharset[];  // default encode string
 extern int8_t   tsEnableCoreFile;
 extern int32_t  tsCompressMsgSize;
 extern int32_t  tsCompressColData;
 extern int32_t  tsMaxNumOfDistinctResults;
 extern char     tsTempDir[];
 
-//query buffer management
-extern int32_t  tsQueryBufferSize;      // maximum allowed usage buffer size in MB for each data node during query processing
-extern int64_t  tsQueryBufferSizeBytes; // maximum allowed usage buffer size in byte for each data node during query processing
-extern int32_t  tsRetrieveBlockingModel;// retrieve threads will be blocked
+// query buffer management
+extern int32_t tsQueryBufferSize;  // maximum allowed usage buffer size in MB for each data node during query processing
+extern int64_t
+    tsQueryBufferSizeBytes;  // maximum allowed usage buffer size in byte for each data node during query processing
+extern int32_t tsRetrieveBlockingModel;  // retrieve threads will be blocked
 
-extern int8_t   tsKeepOriginalColumnName;
+extern int8_t tsKeepOriginalColumnName;
 
 // client
 extern int32_t tsMaxSQLStringLen;
@@ -108,7 +109,7 @@ extern int32_t tsQuorum;
 extern int8_t  tsUpdate;
 extern int8_t  tsCacheLastRow;
 
-//tsdb
+// tsdb
 extern bool    tsdbForceKeepFile;
 extern bool    tsdbForceCompactFile;
 extern int32_t tsdbWalFlushSize;
@@ -134,6 +135,7 @@ extern int8_t   tsHttpEnableCompress;
 extern int8_t   tsHttpEnableRecordSql;
 extern int8_t   tsTelegrafUseFieldNum;
 extern int8_t   tsHttpDbNameMandatory;
+extern int32_t  tsHttpKeepAlive;
 
 // mqtt
 extern int8_t tsEnableMqttModule;
@@ -170,22 +172,22 @@ extern int64_t tsTickPerDay[3];
 extern int32_t tsTopicBianryLen;
 
 // system info
-extern char    tsOsName[];
-extern int64_t tsPageSize;
-extern int64_t tsOpenMax;
-extern int64_t tsStreamMax;
-extern int32_t tsNumOfCores;
-extern float   tsTotalLogDirGB;
-extern float   tsTotalTmpDirGB;
-extern float   tsTotalDataDirGB;
-extern float   tsAvailLogDirGB;
-extern float   tsAvailTmpDirectorySpace;
-extern float   tsAvailDataDirGB;
-extern float   tsUsedDataDirGB;
-extern float   tsMinimalLogDirGB;
-extern float   tsReservedTmpDirectorySpace;
-extern float   tsMinimalDataDirGB;
-extern int32_t tsTotalMemoryMB;
+extern char     tsOsName[];
+extern int64_t  tsPageSize;
+extern int64_t  tsOpenMax;
+extern int64_t  tsStreamMax;
+extern int32_t  tsNumOfCores;
+extern float    tsTotalLogDirGB;
+extern float    tsTotalTmpDirGB;
+extern float    tsTotalDataDirGB;
+extern float    tsAvailLogDirGB;
+extern float    tsAvailTmpDirectorySpace;
+extern float    tsAvailDataDirGB;
+extern float    tsUsedDataDirGB;
+extern float    tsMinimalLogDirGB;
+extern float    tsReservedTmpDirectorySpace;
+extern float    tsMinimalDataDirGB;
+extern int32_t  tsTotalMemoryMB;
 extern uint32_t tsVersion;
 
 // build info
@@ -196,37 +198,37 @@ extern char gitinfoOfInternal[];
 extern char buildinfo[];
 
 // log
-extern int8_t  tsAsyncLog;
-extern int32_t tsNumOfLogLines;
-extern int32_t tsLogKeepDays;
-extern int32_t dDebugFlag;
-extern int32_t vDebugFlag;
-extern int32_t mDebugFlag;
+extern int8_t   tsAsyncLog;
+extern int32_t  tsNumOfLogLines;
+extern int32_t  tsLogKeepDays;
+extern int32_t  dDebugFlag;
+extern int32_t  vDebugFlag;
+extern int32_t  mDebugFlag;
 extern uint32_t cDebugFlag;
-extern int32_t jniDebugFlag;
-extern int32_t tmrDebugFlag;
-extern int32_t sdbDebugFlag;
-extern int32_t httpDebugFlag;
-extern int32_t mqttDebugFlag;
-extern int32_t monDebugFlag;
-extern int32_t uDebugFlag;
-extern int32_t rpcDebugFlag;
-extern int32_t odbcDebugFlag;
+extern int32_t  jniDebugFlag;
+extern int32_t  tmrDebugFlag;
+extern int32_t  sdbDebugFlag;
+extern int32_t  httpDebugFlag;
+extern int32_t  mqttDebugFlag;
+extern int32_t  monDebugFlag;
+extern int32_t  uDebugFlag;
+extern int32_t  rpcDebugFlag;
+extern int32_t  odbcDebugFlag;
 extern uint32_t qDebugFlag;
-extern int32_t wDebugFlag;
-extern int32_t cqDebugFlag;
-extern int32_t debugFlag;
+extern int32_t  wDebugFlag;
+extern int32_t  cqDebugFlag;
+extern int32_t  debugFlag;
 
 extern int8_t tsClientMerge;
 
 #ifdef TD_TSZ
 // lossy
-extern char lossyColumns[];
-extern double fPrecision;
-extern double dPrecision;
+extern char     lossyColumns[];
+extern double   fPrecision;
+extern double   dPrecision;
 extern uint32_t maxRange;
 extern uint32_t curRange;
-extern char Compressor[];
+extern char     Compressor[];
 #endif
 // long query
 extern int8_t tsDeadLockKillQuery;

src/common/src/tglobal.c

@@ -14,18 +14,18 @@
  */
 
 #define _DEFAULT_SOURCE
+#include "tglobal.h"
+#include "monitor.h"
 #include "os.h"
 #include "taosdef.h"
 #include "taoserror.h"
-#include "tulog.h"
+#include "tcompare.h"
 #include "tconfig.h"
-#include "tglobal.h"
-#include "monitor.h"
-#include "tsocket.h"
-#include "tutil.h"
 #include "tlocale.h"
+#include "tsocket.h"
 #include "ttimezone.h"
-#include "tcompare.h"
+#include "tulog.h"
+#include "tutil.h"
 
 // cluster
 char     tsFirst[TSDB_EP_LEN] = {0};
@@ -49,16 +49,16 @@ int32_t  tsDnodeId = 0;
 int64_t  tsDnodeStartTime = 0;
 
 // common
-int32_t tsRpcTimer       = 300;
-int32_t tsRpcMaxTime     = 600;  // seconds;
-int32_t tsRpcForceTcp    = 0;  //disable this, means query, show command use udp protocol as default
-int32_t tsMaxShellConns  = 50000;
+int32_t tsRpcTimer = 300;
+int32_t tsRpcMaxTime = 600;  // seconds;
+int32_t tsRpcForceTcp = 0;   // disable this, means query, show command use udp protocol as default
+int32_t tsMaxShellConns = 50000;
 int32_t tsMaxConnections = 5000;
-int32_t tsShellActivityTimer  = 3;  // second
+int32_t tsShellActivityTimer = 3;  // second
 float   tsNumOfThreadsPerCore = 1.0f;
 int32_t tsNumOfCommitThreads = 4;
 float   tsRatioOfQueryCores = 1.0f;
-int8_t  tsDaylight       = 0;
+int8_t  tsDaylight = 0;
 char    tsTimezone[TSDB_TIMEZONE_LEN] = {0};
 char    tsLocale[TSDB_LOCALE_LEN] = {0};
 char    tsCharset[TSDB_LOCALE_LEN] = {0};  // default encode string
@@ -87,7 +87,7 @@ int32_t tsMaxSQLStringLen = TSDB_MAX_ALLOWED_SQL_LEN;
 int32_t tsMaxWildCardsLen = TSDB_PATTERN_STRING_DEFAULT_LEN;
 int32_t tsMaxRegexStringLen = TSDB_REGEX_STRING_DEFAULT_LEN;
 
-int8_t  tsTscEnableRecordSql = 0;
+int8_t tsTscEnableRecordSql = 0;
 
 // the maximum number of results for projection query on super table that are returned from
 // one virtual node, to order according to timestamp
@@ -97,7 +97,7 @@ int32_t tsMaxNumOfOrderedResults = 1000000;
 int32_t tsMinSlidingTime = 10;
 
 // the maxinum number of distict query result
-int32_t tsMaxNumOfDistinctResults  = 1000 * 10000;
+int32_t tsMaxNumOfDistinctResults = 1000 * 10000;
 
 // 1 us for interval time range, changed accordingly
 int32_t tsMinIntervalTime = 1;
@@ -109,7 +109,7 @@ int32_t tsMaxStreamComputDelay = 20000;
 int32_t tsStreamCompStartDelay = 10000;
 
 // the stream computing delay time after executing failed, change accordingly
-int32_t tsRetryStreamCompDelay = 10*1000;
+int32_t tsRetryStreamCompDelay = 10 * 1000;
 
 // The delayed computing ration. 10% of the whole computing time window by default.
 float tsStreamComputDelayRatio = 0.1f;
@@ -128,41 +128,41 @@ int64_t tsQueryBufferSizeBytes = -1;
 int32_t tsRetrieveBlockingModel = 0;
 
 // last_row(*), first(*), last_row(ts, col1, col2) query, the result fields will be the original column name
-int8_t  tsKeepOriginalColumnName = 0;
+int8_t tsKeepOriginalColumnName = 0;
 
 // db parameters
 int32_t tsCacheBlockSize = TSDB_DEFAULT_CACHE_BLOCK_SIZE;
 int32_t tsBlocksPerVnode = TSDB_DEFAULT_TOTAL_BLOCKS;
-int16_t tsDaysPerFile    = TSDB_DEFAULT_DAYS_PER_FILE;
-int32_t tsDaysToKeep     = TSDB_DEFAULT_KEEP;
+int16_t tsDaysPerFile = TSDB_DEFAULT_DAYS_PER_FILE;
+int32_t tsDaysToKeep = TSDB_DEFAULT_KEEP;
 int32_t tsMinRowsInFileBlock = TSDB_DEFAULT_MIN_ROW_FBLOCK;
 int32_t tsMaxRowsInFileBlock = TSDB_DEFAULT_MAX_ROW_FBLOCK;
-int16_t tsCommitTime    = TSDB_DEFAULT_COMMIT_TIME;  // seconds
+int16_t tsCommitTime = TSDB_DEFAULT_COMMIT_TIME;  // seconds
 int32_t tsTimePrecision = TSDB_DEFAULT_PRECISION;
-int8_t  tsCompression   = TSDB_DEFAULT_COMP_LEVEL;
-int8_t  tsWAL           = TSDB_DEFAULT_WAL_LEVEL;
-int32_t tsFsyncPeriod   = TSDB_DEFAULT_FSYNC_PERIOD;
-int32_t tsReplications  = TSDB_DEFAULT_DB_REPLICA_OPTION;
-int32_t tsQuorum        = TSDB_DEFAULT_DB_QUORUM_OPTION;
-int16_t tsPartitons     = TSDB_DEFAULT_DB_PARTITON_OPTION;
-int8_t  tsUpdate        = TSDB_DEFAULT_DB_UPDATE_OPTION;
-int8_t  tsCacheLastRow  = TSDB_DEFAULT_CACHE_LAST_ROW;
-int32_t tsMaxVgroupsPerDb  = 0;
+int8_t  tsCompression = TSDB_DEFAULT_COMP_LEVEL;
+int8_t  tsWAL = TSDB_DEFAULT_WAL_LEVEL;
+int32_t tsFsyncPeriod = TSDB_DEFAULT_FSYNC_PERIOD;
+int32_t tsReplications = TSDB_DEFAULT_DB_REPLICA_OPTION;
+int32_t tsQuorum = TSDB_DEFAULT_DB_QUORUM_OPTION;
+int16_t tsPartitons = TSDB_DEFAULT_DB_PARTITON_OPTION;
+int8_t  tsUpdate = TSDB_DEFAULT_DB_UPDATE_OPTION;
+int8_t  tsCacheLastRow = TSDB_DEFAULT_CACHE_LAST_ROW;
+int32_t tsMaxVgroupsPerDb = 0;
 int32_t tsMinTablePerVnode = TSDB_TABLES_STEP;
 int32_t tsMaxTablePerVnode = TSDB_DEFAULT_TABLES;
 int32_t tsTableIncStepPerVnode = TSDB_TABLES_STEP;
 int32_t tsTsdbMetaCompactRatio = TSDB_META_COMPACT_RATIO;
 
-// tsdb config 
+// tsdb config
 // For backward compatibility
 bool    tsdbForceKeepFile = false;
-bool    tsdbForceCompactFile = false; // compact TSDB fileset forcibly
+bool    tsdbForceCompactFile = false;                    // compact TSDB fileset forcibly
 int32_t tsdbWalFlushSize = TSDB_DEFAULT_WAL_FLUSH_SIZE;  // MB
 
 // balance
 int8_t  tsEnableBalance = 1;
 int8_t  tsAlternativeRole = 0;
-int32_t tsBalanceInterval = 300;           // seconds
+int32_t tsBalanceInterval = 300;          // seconds
 int32_t tsOfflineThreshold = 86400 * 10;  // seconds of 10 days
 int32_t tsMnodeEqualVnodeNum = 4;
 int8_t  tsEnableFlowCtrl = 1;
@@ -180,15 +180,16 @@ int8_t   tsHttpEnableCompress = 1;
 int8_t   tsHttpEnableRecordSql = 0;
 int8_t   tsTelegrafUseFieldNum = 0;
 int8_t   tsHttpDbNameMandatory = 0;
+int32_t  tsHttpKeepAlive = 30000;
 
 // mqtt
 int8_t tsEnableMqttModule = 0;  // not finished yet, not started it by default
-char    tsMqttHostName[TSDB_MQTT_HOSTNAME_LEN] = "test.mosquitto.org";
-char    tsMqttPort[TSDB_MQTT_PORT_LEN] = "1883";
-char    tsMqttUser[TSDB_MQTT_USER_LEN] = {0};
-char    tsMqttPass[TSDB_MQTT_PASS_LEN] = {0};
-char    tsMqttClientId[TSDB_MQTT_CLIENT_ID_LEN] = "TDengineMqttSubscriber";
-char    tsMqttTopic[TSDB_MQTT_TOPIC_LEN] = "/test"; // #
+char   tsMqttHostName[TSDB_MQTT_HOSTNAME_LEN] = "test.mosquitto.org";
+char   tsMqttPort[TSDB_MQTT_PORT_LEN] = "1883";
+char   tsMqttUser[TSDB_MQTT_USER_LEN] = {0};
+char   tsMqttPass[TSDB_MQTT_PASS_LEN] = {0};
+char   tsMqttClientId[TSDB_MQTT_CLIENT_ID_LEN] = "TDengineMqttSubscriber";
+char   tsMqttTopic[TSDB_MQTT_TOPIC_LEN] = "/test";  // #
 
 // monitor
 int8_t  tsEnableMonitorModule = 1;
@@ -197,7 +198,7 @@ char    tsInternalPass[] = "secretkey";
 int32_t tsMonitorInterval = 30;  // seconds
 
 // stream
-int8_t  tsEnableStream = 1;
+int8_t tsEnableStream = 1;
 
 // internal
 int8_t tsCompactMnodeWal = 0;
@@ -213,7 +214,7 @@ char   tsDataDir[PATH_MAX] = {0};
 char   tsScriptDir[PATH_MAX] = {0};
 char   tsTempDir[PATH_MAX] = "/tmp/";
 
-int32_t  tsDiskCfgNum = 0;
+int32_t tsDiskCfgNum = 0;
 int32_t tsTopicBianryLen = 16000;
 
 #ifndef _STORAGE
@@ -231,42 +232,42 @@ SDiskCfg tsDiskCfg[TSDB_MAX_DISKS];
 int64_t tsTickPerDay[] = {86400000L, 86400000000L, 86400000000000L};
 
 // system info
-char    tsOsName[10] = "Linux";
-int64_t tsPageSize;
-int64_t tsOpenMax;
-int64_t tsStreamMax;
-int32_t tsNumOfCores = 1;
-float   tsTotalTmpDirGB = 0;
-float   tsTotalDataDirGB = 0;
-float   tsAvailTmpDirectorySpace = 0;
-float   tsAvailDataDirGB = 0;
-float   tsUsedDataDirGB = 0;
-float   tsReservedTmpDirectorySpace = 1.0f;
-float   tsMinimalDataDirGB = 2.0f;
-int32_t tsTotalMemoryMB = 0;
+char     tsOsName[10] = "Linux";
+int64_t  tsPageSize;
+int64_t  tsOpenMax;
+int64_t  tsStreamMax;
+int32_t  tsNumOfCores = 1;
+float    tsTotalTmpDirGB = 0;
+float    tsTotalDataDirGB = 0;
+float    tsAvailTmpDirectorySpace = 0;
+float    tsAvailDataDirGB = 0;
+float    tsUsedDataDirGB = 0;
+float    tsReservedTmpDirectorySpace = 1.0f;
+float    tsMinimalDataDirGB = 2.0f;
+int32_t  tsTotalMemoryMB = 0;
 uint32_t tsVersion = 0;
 
 // log
-int32_t tsNumOfLogLines = 10000000;
-int32_t mDebugFlag = 131;
-int32_t sdbDebugFlag = 131;
-int32_t dDebugFlag = 135;
-int32_t vDebugFlag = 135;
+int32_t  tsNumOfLogLines = 10000000;
+int32_t  mDebugFlag = 131;
+int32_t  sdbDebugFlag = 131;
+int32_t  dDebugFlag = 135;
+int32_t  vDebugFlag = 135;
 uint32_t cDebugFlag = 131;
-int32_t jniDebugFlag = 131;
-int32_t odbcDebugFlag = 131;
-int32_t httpDebugFlag = 131;
-int32_t mqttDebugFlag = 131;
-int32_t monDebugFlag = 131;
+int32_t  jniDebugFlag = 131;
+int32_t  odbcDebugFlag = 131;
+int32_t  httpDebugFlag = 131;
+int32_t  mqttDebugFlag = 131;
+int32_t  monDebugFlag = 131;
 uint32_t qDebugFlag = 131;
-int32_t rpcDebugFlag = 131;
-int32_t uDebugFlag = 131;
-int32_t debugFlag = 0;
-int32_t sDebugFlag = 135;
-int32_t wDebugFlag = 135;
-int32_t tsdbDebugFlag = 131;
-int32_t cqDebugFlag = 131;
-int32_t fsDebugFlag = 135;
+int32_t  rpcDebugFlag = 131;
+int32_t  uDebugFlag = 131;
+int32_t  debugFlag = 0;
+int32_t  sDebugFlag = 135;
+int32_t  wDebugFlag = 135;
+int32_t  tsdbDebugFlag = 131;
+int32_t  cqDebugFlag = 131;
+int32_t  fsDebugFlag = 135;
 
 int8_t tsClientMerge = 0;
 
@@ -274,13 +275,14 @@ int8_t tsClientMerge = 0;
 //
 // lossy compress 6
 //
-char lossyColumns[32] = "";  // "float|double" means all float and double columns can be lossy compressed.  set empty can close lossy compress.
-// below option can take effect when tsLossyColumns not empty 
-double   fPrecision   = 1E-8;   // float column precision
-double   dPrecision   = 1E-16;  // double column precision
-uint32_t maxRange     = 500;    // max range
-uint32_t curRange     = 100;    // range
-char     Compressor[32] = "ZSTD_COMPRESSOR"; // ZSTD_COMPRESSOR or GZIP_COMPRESSOR 
+char lossyColumns[32] = "";  // "float|double" means all float and double columns can be lossy compressed.  set empty
+                             // can close lossy compress.
+// below option can take effect when tsLossyColumns not empty
+double   fPrecision = 1E-8;                   // float column precision
+double   dPrecision = 1E-16;                  // double column precision
+uint32_t maxRange = 500;                      // max range
+uint32_t curRange = 100;                      // range
+char     Compressor[32] = "ZSTD_COMPRESSOR";  // ZSTD_COMPRESSOR or GZIP_COMPRESSOR
 #endif
 
 // long query death-lock
@@ -298,7 +300,7 @@ char *qtypeStr[] = {"rpc", "fwd", "wal", "cq", "query"};
 static pthread_once_t tsInitGlobalCfgOnce = PTHREAD_ONCE_INIT;
 
 void taosSetAllDebugFlag() {
-  if (debugFlag != 0) { 
+  if (debugFlag != 0) {
     mDebugFlag = debugFlag;
     sdbDebugFlag = debugFlag;
     dDebugFlag = debugFlag;
@@ -309,7 +311,7 @@ void taosSetAllDebugFlag() {
     httpDebugFlag = debugFlag;
     mqttDebugFlag = debugFlag;
     monDebugFlag = debugFlag;
-    qDebugFlag = debugFlag;    
+    qDebugFlag = debugFlag;
     rpcDebugFlag = debugFlag;
     uDebugFlag = debugFlag;
     sDebugFlag = debugFlag;
@@ -321,12 +323,13 @@ void taosSetAllDebugFlag() {
 }
 
 bool taosCfgDynamicOptions(char *msg) {
-  char *option, *value;
-  int32_t   olen, vlen;
-  int32_t   vint = 0;
+  char   *option, *value;
+  int32_t olen, vlen;
+  int32_t vint = 0;
 
   paGetToken(msg, &option, &olen);
-  if (olen == 0) return false;;
+  if (olen == 0) return false;
+  ;
 
   paGetToken(option + olen + 1, &value, &vlen);
   if (vlen == 0)
@@ -339,9 +342,9 @@ bool taosCfgDynamicOptions(char *msg) {
 
   for (int32_t i = 0; i < tsGlobalConfigNum; ++i) {
     SGlobalCfg *cfg = tsGlobalConfig + i;
-    //if (!(cfg->cfgType & TSDB_CFG_CTYPE_B_LOG)) continue;
+    // if (!(cfg->cfgType & TSDB_CFG_CTYPE_B_LOG)) continue;
     if (cfg->valType != TAOS_CFG_VTYPE_INT32 && cfg->valType != TAOS_CFG_VTYPE_INT8) continue;
-    
+
     int32_t cfgLen = (int32_t)strlen(cfg->option);
     if (cfgLen != olen) continue;
     if (strncasecmp(option, cfg->option, olen) != 0) continue;
@@ -370,7 +373,7 @@ bool taosCfgDynamicOptions(char *msg) {
       return true;
     }
     if (strncasecmp(cfg->option, "debugFlag", olen) == 0) {
-       taosSetAllDebugFlag(); 
+      taosSetAllDebugFlag();
     }
     return true;
   }
@@ -427,7 +430,7 @@ static void taosCheckDataDirCfg() {
 }
 
 static int32_t taosCheckTmpDir(void) {
-  if (strlen(tsTempDir) <= 0){
+  if (strlen(tsTempDir) <= 0) {
     uError("tempDir is not set");
     return -1;
   }
@@ -448,7 +451,7 @@ static void doInitGlobalConfig(void) {
   srand(taosSafeRand());
 
   SGlobalCfg cfg = {0};
-  
+
   // ip address
   cfg.option = "firstEp";
   cfg.ptr = tsFirst;
@@ -577,12 +580,12 @@ static void doInitGlobalConfig(void) {
   cfg.ptr = &tsMaxNumOfDistinctResults;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW | TSDB_CFG_CTYPE_B_CLIENT;
-  cfg.minValue = 10*10000;
-  cfg.maxValue = 10000*10000;
+  cfg.minValue = 10 * 10000;
+  cfg.maxValue = 10000 * 10000;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
-  
+
   cfg.option = "numOfMnodes";
   cfg.ptr = &tsNumOfMnodes;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
@@ -1189,7 +1192,7 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
-    // module configs
+  // module configs
   cfg.option = "flowctrl";
   cfg.ptr = &tsEnableFlowCtrl;
   cfg.valType = TAOS_CFG_VTYPE_INT8;
@@ -1320,6 +1323,17 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
+  // pContext in cache
+  cfg.option = "httpKeepAlive";
+  cfg.ptr = &tsHttpKeepAlive;
+  cfg.valType = TAOS_CFG_VTYPE_INT32;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = 3000;
+  cfg.maxValue = 3600000;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
   // debug flag
   cfg.option = "numOfLogLines";
   cfg.ptr = &tsNumOfLogLines;
@@ -1401,7 +1415,6 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
-
   cfg.option = "sdbDebugFlag";
   cfg.ptr = &sdbDebugFlag;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
@@ -1633,7 +1646,7 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
-   // enable kill long query
+  // enable kill long query
   cfg.option = "deadLockKillQuery";
   cfg.ptr = &tsDeadLockKillQuery;
   cfg.valType = TAOS_CFG_VTYPE_INT8;
@@ -1731,21 +1744,18 @@ static void doInitGlobalConfig(void) {
 #else
   assert(tsGlobalConfigNum < TSDB_CFG_MAX_NUM);
 #endif
-
 }
 
-void taosInitGlobalCfg() {
-  pthread_once(&tsInitGlobalCfgOnce, doInitGlobalConfig);
-}
+void taosInitGlobalCfg() { pthread_once(&tsInitGlobalCfgOnce, doInitGlobalConfig); }
 
 int32_t taosCheckGlobalCfg() {
-  char fqdn[TSDB_FQDN_LEN];
+  char     fqdn[TSDB_FQDN_LEN];
   uint16_t port;
 
   if (debugFlag & DEBUG_TRACE || debugFlag & DEBUG_DEBUG || debugFlag & DEBUG_DUMP) {
     taosSetAllDebugFlag();
   }
-  
+
   if (tsLocalFqdn[0] == 0) {
     taosGetFqdn(tsLocalFqdn);
   }
@@ -1772,7 +1782,7 @@ int32_t taosCheckGlobalCfg() {
   if (taosCheckTmpDir()) {
     return -1;
   }
-  
+
   taosGetSystemInfo();
 
   tsSetLocale();
@@ -1794,8 +1804,8 @@ int32_t taosCheckGlobalCfg() {
   }
 
   if (tsMaxTablePerVnode < tsMinTablePerVnode) {
-    uError("maxTablesPerVnode(%d) < minTablesPerVnode(%d), reset to minTablesPerVnode(%d)",
-	   tsMaxTablePerVnode, tsMinTablePerVnode, tsMinTablePerVnode);
+    uError("maxTablesPerVnode(%d) < minTablesPerVnode(%d), reset to minTablesPerVnode(%d)", tsMaxTablePerVnode,
+           tsMinTablePerVnode, tsMinTablePerVnode);
     tsMaxTablePerVnode = tsMinTablePerVnode;
   }
 
@@ -1817,7 +1827,7 @@ int32_t taosCheckGlobalCfg() {
   }
 
   tsDnodeShellPort = tsServerPort + TSDB_PORT_DNODESHELL;  // udp[6035-6039] tcp[6035]
-  tsDnodeDnodePort = tsServerPort + TSDB_PORT_DNODEDNODE;   // udp/tcp
+  tsDnodeDnodePort = tsServerPort + TSDB_PORT_DNODEDNODE;  // udp/tcp
   tsSyncPort = tsServerPort + TSDB_PORT_SYNC;
   tsHttpPort = tsServerPort + TSDB_PORT_HTTP;
 
@@ -1837,17 +1847,17 @@ int taosGetFqdnPortFromEp(const char *ep, char *fqdn, uint16_t *port) {
   strcpy(fqdn, ep);
 
   char *temp = strchr(fqdn, ':');
-  if (temp) {   
+  if (temp) {
     *temp = 0;
-    *port = atoi(temp+1);
-  } 
-  
+    *port = atoi(temp + 1);
+  }
+
   if (*port == 0) {
     *port = tsServerPort;
     return -1;
   }
 
-  return 0; 
+  return 0;
 }
 
 /*

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBPreparedStatement.java

@@ -36,15 +36,15 @@ import java.util.regex.Pattern;
  * compatibility needs.
  */
 public class TSDBPreparedStatement extends TSDBStatement implements PreparedStatement {
+    // for jdbc preparedStatement interface
     private String rawSql;
     private Object[] parameters;
-
-    private ArrayList<ColumnInfo> colData;
+    // for parameter binding
+    private long nativeStmtHandle = 0;
+    private String tableName;
     private ArrayList<TableTagInfo> tableTags;
     private int tagValueLength;
-
-    private String tableName;
-    private long nativeStmtHandle = 0;
+    private ArrayList<ColumnInfo> colData;
 
     TSDBPreparedStatement(TSDBConnection connection, String sql) {
         super(connection);
@@ -72,10 +72,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         preprocessSql();
     }
 
-    /*
-     *
-     */
-
     /**
      * Some of the SQLs sent by other popular frameworks or tools like Spark, contains syntax that cannot be parsed by
      * the TDengine client. Thus, some simple parsers/filters are intentionally added in this JDBC implementation in
@@ -250,13 +246,10 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public void setObject(int parameterIndex, Object x) throws SQLException {
-        if (isClosed()) {
+        if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        }
-
-        if (parameterIndex < 1 && parameterIndex >= parameters.length) {
+        if (parameterIndex < 1 && parameterIndex >= parameters.length)
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
-        }
         parameters[parameterIndex - 1] = x;
     }
 
@@ -335,7 +328,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        // TODO：
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
@@ -419,7 +411,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        //TODO:
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
@@ -477,7 +468,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-
     }
 
     @Override
@@ -496,7 +486,7 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     ///////////////////////////////////////////////////////////////////////
     // NOTE: the following APIs are not JDBC compatible
-    // set the bind table name
+    // parameter binding
     private static class ColumnInfo {
         @SuppressWarnings("rawtypes")
         private ArrayList data;
@@ -539,7 +529,11 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         }
     }
 
-    public void setTableName(String name) {
+    public void setTableName(String name) throws SQLException {
+        if (this.tableName != null) {
+            this.columnDataExecuteBatch();
+            this.columnDataClearBatchInternal();
+        }
         this.tableName = name;
     }
 
@@ -960,17 +954,22 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void columnDataExecuteBatch() throws SQLException {
         TSDBJNIConnector connector = ((TSDBConnection) this.getConnection()).getConnector();
         connector.executeBatch(this.nativeStmtHandle);
-        this.columnDataClearBatch();
+        this.columnDataClearBatchInternal();
     }
 
+    @Deprecated
     public void columnDataClearBatch() {
+        columnDataClearBatchInternal();
+    }
+
+    private void columnDataClearBatchInternal() {
         int size = this.colData.size();
         this.colData.clear();
-
         this.colData.addAll(Collections.nCopies(size, null));
         this.tableName = null;   // clear the table name
     }
 
+
     public void columnDataCloseBatch() throws SQLException {
         TSDBJNIConnector connector = ((TSDBConnection) this.getConnection()).getConnector();
         connector.closeBatch(this.nativeStmtHandle);
@@ -978,4 +977,11 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         this.nativeStmtHandle = 0L;
         this.tableName = null;
     }
+
+    @Override
+    public void close() throws SQLException {
+        this.columnDataClearBatchInternal();
+        this.columnDataCloseBatch();
+        super.close();
+    }
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/HttpClientPoolUtil.java

@@ -5,9 +5,7 @@ import com.taosdata.jdbc.TSDBErrorNumbers;
 import org.apache.http.HeaderElement;
 import org.apache.http.HeaderElementIterator;
 import org.apache.http.HttpEntity;
-import org.apache.http.NoHttpResponseException;
 import org.apache.http.client.ClientProtocolException;
-import org.apache.http.client.HttpRequestRetryHandler;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.*;
 import org.apache.http.client.protocol.HttpClientContext;
@@ -21,10 +19,7 @@ import org.apache.http.protocol.HTTP;
 import org.apache.http.protocol.HttpContext;
 import org.apache.http.util.EntityUtils;
 
-import javax.net.ssl.SSLException;
 import java.io.IOException;
-import java.io.InterruptedIOException;
-import java.net.UnknownHostException;
 import java.nio.charset.StandardCharsets;
 import java.sql.SQLException;
 
@@ -53,10 +48,9 @@ public class HttpClientPoolUtil {
         return DEFAULT_HTTP_KEEP_TIME * 1000;
     };
 
-    private static CloseableHttpClient httpClient;
+    private static final CloseableHttpClient httpClient;
 
     static {
-
         PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
         connectionManager.setMaxTotal(DEFAULT_MAX_TOTAL);
         connectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_PER_ROUTE);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/ParameterBindTest.java

+package com.taosdata.jdbc;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;
+
+public class ParameterBindTest {
+
+    private static final String host = "127.0.0.1";
+    private static final String stable = "weather";
+
+    private Connection conn;
+    private final Random random = new Random(System.currentTimeMillis());
+
+    @Test
+    public void test() {
+        // given
+        String[] tbnames = {"t1", "t2", "t3"};
+        int rows = 10;
+
+        // when
+        insertIntoTables(tbnames, 10);
+
+        // then
+        assertRows(stable, tbnames.length * rows);
+        for (String t : tbnames) {
+            assertRows(t, rows);
+        }
+    }
+
+    @Test
+    public void testMultiThreads() {
+        // given
+        String[][] tables = {{"t1", "t2", "t3"}, {"t4", "t5", "t6"}, {"t7", "t8", "t9"}, {"t10"}};
+        int rows = 10;
+
+        // when
+        List<Thread> threads = Arrays.stream(tables).map(tbnames -> new Thread(() -> insertIntoTables(tbnames, rows))).collect(Collectors.toList());
+        threads.forEach(Thread::start);
+        for (Thread thread : threads) {
+            try {
+                thread.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+        // then
+        for (String[] table : tables) {
+            for (String t : table) {
+                assertRows(t, rows);
+            }
+        }
+
+    }
+
+    private void assertRows(String tbname, int rows) {
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select count(*) from " + tbname);
+            while (rs.next()) {
+                int count = rs.getInt(1);
+                Assert.assertEquals(rows, count);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void insertIntoTables(String[] tbnames, int rowsEachTable) {
+        long current = System.currentTimeMillis();
+        String sql = "insert into ? using " + stable + " tags(?, ?) values(?, ?, ?)";
+        try (TSDBPreparedStatement pstmt = conn.prepareStatement(sql).unwrap(TSDBPreparedStatement.class)) {
+            for (int i = 0; i < tbnames.length; i++) {
+                pstmt.setTableName(tbnames[i]);
+                pstmt.setTagInt(0, random.nextInt(100));
+                pstmt.setTagInt(1, random.nextInt(100));
+
+                ArrayList<Long> timestampList = new ArrayList<>();
+                for (int j = 0; j < rowsEachTable; j++) {
+                    timestampList.add(current + i * 1000 + j);
+                }
+                pstmt.setTimestamp(0, timestampList);
+
+                ArrayList<Integer> f1List = new ArrayList<>();
+                for (int j = 0; j < rowsEachTable; j++) {
+                    f1List.add(random.nextInt(100));
+                }
+                pstmt.setInt(1, f1List);
+
+                ArrayList<Integer> f2List = new ArrayList<>();
+                for (int j = 0; j < rowsEachTable; j++) {
+                    f2List.add(random.nextInt(100));
+                }
+                pstmt.setInt(2, f2List);
+
+                pstmt.columnDataAddBatch();
+            }
+
+            pstmt.columnDataExecuteBatch();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void before() {
+        String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        try {
+            conn = DriverManager.getConnection(url);
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists test_pd");
+            stmt.execute("create database if not exists test_pd");
+            stmt.execute("use test_pd");
+            stmt.execute("create table " + stable + "(ts timestamp, f1 int, f2 int) tags(t1 int, t2 int)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void after() {
+        try {
+//            Statement stmt = conn.createStatement();
+//            stmt.execute("drop database if exists test_pd");
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/utils/HttpClientPoolUtilTest.java

@@ -2,7 +2,6 @@ package com.taosdata.jdbc.utils;
 
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
-import com.taosdata.jdbc.TSDBDriver;
 import com.taosdata.jdbc.TSDBError;
 import org.junit.Test;
 
@@ -11,7 +10,6 @@ import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.sql.SQLException;
 import java.util.List;
-import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
@@ -27,11 +25,6 @@ public class HttpClientPoolUtilTest {
         // given
         List<Thread> threads = IntStream.range(0, 4000).mapToObj(i -> new Thread(() -> {
             useDB();
-//            try {
-//                TimeUnit.SECONDS.sleep(10);
-//            } catch (InterruptedException e) {
-//                e.printStackTrace();
-//            }
         })).collect(Collectors.toList());
 
         threads.forEach(Thread::start);
@@ -43,7 +36,6 @@ public class HttpClientPoolUtilTest {
                 e.printStackTrace();
             }
         }
-
     }
 
     private void useDB() {

src/kit/taosdump/CMakeLists.txt

@@ -3,6 +3,7 @@ PROJECT(TDengine)
 
 INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/client/inc)
 INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/query/inc)
+INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR}/build/include)
 INCLUDE_DIRECTORIES(inc)
 AUX_SOURCE_DIRECTORY(. SRC)
 
@@ -61,12 +62,22 @@ ENDIF ()
 MESSAGE("TD_VERSION_NUMBER is:" ${TD_VERSION_NUMBER})
 ADD_DEFINITIONS(-DTD_VERNUMBER="${TD_VERSION_NUMBER}")
 
+LINK_DIRECTORIES(${CMAKE_BINARY_DIR}/build/lib ${CMAKE_BINARY_DIR}/build/lib64)
+
 IF (TD_LINUX)
   ADD_EXECUTABLE(taosdump ${SRC})
   IF (TD_SOMODE_STATIC)
-    TARGET_LINK_LIBRARIES(taosdump taos_static cJson)
+    IF (AVRO_SUPPORT)
+      TARGET_LINK_LIBRARIES(taosdump taos_static avro jansson)
+    ELSE ()
+      TARGET_LINK_LIBRARIES(taosdump taos_static)
+    ENDIF()
   ELSE ()
-    TARGET_LINK_LIBRARIES(taosdump taos cJson)
+    IF (AVRO_SUPPORT)
+      TARGET_LINK_LIBRARIES(taosdump taos avro jansson)
+    ELSE ()
+      TARGET_LINK_LIBRARIES(taosdump taos)
+    ENDIF ()
   ENDIF ()
 ENDIF ()
 
@@ -74,8 +85,8 @@ IF (TD_DARWIN)
   # missing <argp.h> for macosx
   # ADD_EXECUTABLE(taosdump ${SRC})
   # IF (TD_SOMODE_STATIC)
-  #   TARGET_LINK_LIBRARIES(taosdump taos_static cJson)
+  #   TARGET_LINK_LIBRARIES(taosdump taos_static jansson)
   # ELSE ()
-  #   TARGET_LINK_LIBRARIES(taosdump taos cJson)
+  #   TARGET_LINK_LIBRARIES(taosdump taos jansson)
   # ENDIF ()
 ENDIF ()

src/plugins/CMakeLists.txt

 CMAKE_MINIMUM_REQUIRED(VERSION 3.0...3.20)
 PROJECT(TDengine)
 
-if(NOT WIN32)
-  string(ASCII 27 Esc)
-  set(ColourReset "${Esc}[m")
-  set(ColourBold  "${Esc}[1m")
-  set(Red         "${Esc}[31m")
-  set(Green       "${Esc}[32m")
-  set(Yellow      "${Esc}[33m")
-  set(Blue        "${Esc}[34m")
-  set(Magenta     "${Esc}[35m")
-  set(Cyan        "${Esc}[36m")
-  set(White       "${Esc}[37m")
-  set(BoldRed     "${Esc}[1;31m")
-  set(BoldGreen   "${Esc}[1;32m")
-  set(BoldYellow  "${Esc}[1;33m")
-  set(BoldBlue    "${Esc}[1;34m")
-  set(BoldMagenta "${Esc}[1;35m")
-  set(BoldCyan    "${Esc}[1;36m")
-  set(BoldWhite   "${Esc}[1;37m")
-endif()
-
 ADD_SUBDIRECTORY(monitor)
 
 IF (TD_BUILD_HTTP)
@@ -57,6 +37,8 @@ ELSE ()
     DEPENDS             taos
     BUILD_IN_SOURCE     1
     CONFIGURE_COMMAND cmake -E echo "blm3 no need cmake to config"
+    PATCH_COMMAND
+        COMMAND     git clean -f -d
     BUILD_COMMAND CGO_CFLAGS=-I${CMAKE_CURRENT_SOURCE_DIR}/../inc CGO_LDFLAGS=-L${CMAKE_BINARY_DIR}/build/lib  go build -ldflags "-s -w -X github.com/taosdata/blm3/version.CommitID=${blm3_commit_sha1}"
     INSTALL_COMMAND cmake -E copy blm3 ${CMAKE_BINARY_DIR}/build/bin COMMAND cmake -E make_directory ${CMAKE_BINARY_DIR}/test/cfg/ COMMAND cmake -E copy ./example/config/blm.toml ${CMAKE_BINARY_DIR}/test/cfg/
   )

src/plugins/http/src/httpContext.c

@@ -123,7 +123,7 @@ HttpContext *httpCreateContext(SOCKET fd) {
 
   TSDB_CACHE_PTR_TYPE handleVal = (TSDB_CACHE_PTR_TYPE)pContext;
   HttpContext **ppContext = taosCachePut(tsHttpServer.contextCache, &handleVal, sizeof(TSDB_CACHE_PTR_TYPE), &pContext,
-                                         sizeof(TSDB_CACHE_PTR_TYPE), 3000);
+                                         sizeof(TSDB_CACHE_PTR_TYPE), tsHttpKeepAlive);
   pContext->ppContext = ppContext;
   httpDebug("context:%p, fd:%d, is created, data:%p", pContext, fd, ppContext);
 

src/util/inc/tconfig.h

@@ -20,7 +20,8 @@
 extern "C" {
 #endif
 
-#define TSDB_CFG_MAX_NUM    128
+
+#define TSDB_CFG_MAX_NUM    129
 #define TSDB_CFG_PRINT_LEN  23
 #define TSDB_CFG_OPTION_LEN 24
 #define TSDB_CFG_VALUE_LEN  41

tests/pytest/insert/special_character_show.py

@@ -31,9 +31,8 @@ class TDTestCase:
         tdLog.info('create table stb1 (ts timestamp, value double) tags (bin binary(128))') 
         tdSql.execute('create table stb1 (ts timestamp, value double) tags (bin binary(128))')
 
-        tdLog.info('=============== step2,create table增加了转义字符')
+        tdLog.info('=============== step2,create table with escape character')
         tdLog.info('create table tb1 using stb1 tags("abc\\"def")')
-        #增加了转义字符\
         tdSql.execute('create table tb1 using stb1 tags("abc\\"def")')
 
         tdLog.info('=============== step3,insert data')