diff --git a/conf/config.yaml b/conf/config.yaml
index 97034f8890..da6355c85c 100644
--- a/conf/config.yaml
+++ b/conf/config.yaml
@@ -35,6 +35,7 @@ pulsar:
 
 proxy:
   timezone: UTC+8
+  query_node_num: 1
 
   network:
     address: 0.0.0.0
diff --git a/core/release-build.sh b/core/release-build.sh
new file mode 100755
index 0000000000..f7fd8861ac
--- /dev/null
+++ b/core/release-build.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+
+# Compile jobs variable; Usage: $ jobs=12 ./build.sh ...
+if [[ ! ${jobs+1} ]]; then
+    jobs=$(nproc)
+fi
+
+BUILD_OUTPUT_DIR="cmake-build-release"
+BUILD_TYPE="Release"
+BUILD_UNITTEST="OFF"
+INSTALL_PREFIX=$(pwd)/milvus
+MAKE_CLEAN="OFF"
+BUILD_COVERAGE="OFF"
+DB_PATH="/tmp/milvus"
+PROFILING="OFF"
+RUN_CPPLINT="OFF"
+CUDA_COMPILER=/usr/local/cuda/bin/nvcc
+GPU_VERSION="OFF" #defaults to CPU version
+WITH_PROMETHEUS="ON"
+CUDA_ARCH="DEFAULT"
+CUSTOM_THIRDPARTY_PATH=""
+
+while getopts "p:d:t:s:f:ulrcghzme" arg; do
+  case $arg in
+  f)
+    CUSTOM_THIRDPARTY_PATH=$OPTARG
+    ;;
+  p)
+    INSTALL_PREFIX=$OPTARG
+    ;;
+  d)
+    DB_PATH=$OPTARG
+    ;;
+  t)
+    BUILD_TYPE=$OPTARG # BUILD_TYPE
+    ;;
+  u)
+    echo "Build and run unittest cases"
+    BUILD_UNITTEST="ON"
+    ;;
+  l)
+    RUN_CPPLINT="ON"
+    ;;
+  r)
+    if [[ -d ${BUILD_OUTPUT_DIR} ]]; then
+      MAKE_CLEAN="ON"
+    fi
+    ;;
+  c)
+    BUILD_COVERAGE="ON"
+    ;;
+  z)
+    PROFILING="ON"
+    ;;
+  g)
+    GPU_VERSION="ON"
+    ;;
+  e)
+    WITH_PROMETHEUS="OFF"
+    ;;
+  s)
+    CUDA_ARCH=$OPTARG
+    ;;
+  h) # help
+    echo "
+
+parameter:
+-f: custom paths of thirdparty downloaded files(default: NULL)
+-p: install prefix(default: $(pwd)/milvus)
+-d: db data path(default: /tmp/milvus)
+-t: build type(default: Debug)
+-u: building unit test options(default: OFF)
+-l: run cpplint, clang-format and clang-tidy(default: OFF)
+-r: remove previous build directory(default: OFF)
+-c: code coverage(default: OFF)
+-z: profiling(default: OFF)
+-g: build GPU version(default: OFF)
+-e: build without prometheus(default: OFF)
+-s: build with CUDA arch(default:DEFAULT), for example '-gencode=compute_61,code=sm_61;-gencode=compute_75,code=sm_75'
+-h: help
+
+usage:
+./build.sh -p \${INSTALL_PREFIX} -t \${BUILD_TYPE} -s \${CUDA_ARCH} -f\${CUSTOM_THIRDPARTY_PATH} [-u] [-l] [-r] [-c] [-z] [-g] [-m] [-e] [-h]
+                "
+    exit 0
+    ;;
+  ?)
+    echo "ERROR! unknown argument"
+    exit 1
+    ;;
+  esac
+done
+
+if [[ ! -d ${BUILD_OUTPUT_DIR} ]]; then
+  mkdir ${BUILD_OUTPUT_DIR}
+fi
+
+cd ${BUILD_OUTPUT_DIR}
+
+# remove make cache since build.sh -l use default variables
+# force update the variables each time
+make rebuild_cache >/dev/null 2>&1
+
+
+if [[ ${MAKE_CLEAN} == "ON" ]]; then
+  echo "Runing make clean in ${BUILD_OUTPUT_DIR} ..."
+  make clean
+  exit 0
+fi
+
+CMAKE_CMD="cmake \
+-DBUILD_UNIT_TEST=${BUILD_UNITTEST} \
+-DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX}
+-DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
+-DOpenBLAS_SOURCE=AUTO \
+-DCMAKE_CUDA_COMPILER=${CUDA_COMPILER} \
+-DBUILD_COVERAGE=${BUILD_COVERAGE} \
+-DMILVUS_DB_PATH=${DB_PATH} \
+-DENABLE_CPU_PROFILING=${PROFILING} \
+-DMILVUS_GPU_VERSION=${GPU_VERSION} \
+-DMILVUS_WITH_PROMETHEUS=${WITH_PROMETHEUS} \
+-DMILVUS_CUDA_ARCH=${CUDA_ARCH} \
+-DCUSTOM_THIRDPARTY_DOWNLOAD_PATH=${CUSTOM_THIRDPARTY_PATH} \
+../"
+echo ${CMAKE_CMD}
+${CMAKE_CMD}
+
+
+if [[ ${RUN_CPPLINT} == "ON" ]]; then
+  # cpplint check
+  make lint
+  if [ $? -ne 0 ]; then
+    echo "ERROR! cpplint check failed"
+    exit 1
+  fi
+  echo "cpplint check passed!"
+
+  # clang-format check
+  make check-clang-format
+  if [ $? -ne 0 ]; then
+    echo "ERROR! clang-format check failed"
+    exit 1
+  fi
+  echo "clang-format check passed!"
+
+  # clang-tidy check
+  make check-clang-tidy
+  if [ $? -ne 0 ]; then
+      echo "ERROR! clang-tidy check failed"
+      exit 1
+  fi
+  echo "clang-tidy check passed!"
+else
+  # compile and build
+  make -j ${jobs} install || exit 1
+fi
diff --git a/proxy/src/config/ConfigMgr.cpp b/proxy/src/config/ConfigMgr.cpp
index c49ddba871..d19aa7cd7a 100644
--- a/proxy/src/config/ConfigMgr.cpp
+++ b/proxy/src/config/ConfigMgr.cpp
@@ -73,6 +73,9 @@ ConfigMgr::ConfigMgr() {
         {"timezone",
          CreateStringConfig("timezone", false, &config.timezone.value, "UTC+8", nullptr, nullptr)},
 
+        {"query_node_num", CreateIntegerConfig("query_node_num", false, 0, 1023, &config.query_node_num.value,
+                                            1, nullptr, nullptr)},
+
         /* network */
         {"network.address", CreateStringConfig("network.address", false, &config.network.address.value,
                                                     "0.0.0.0", nullptr, nullptr)},
diff --git a/proxy/src/config/ServerConfig.h b/proxy/src/config/ServerConfig.h
index 78353c8019..e7a9a2480a 100644
--- a/proxy/src/config/ServerConfig.h
+++ b/proxy/src/config/ServerConfig.h
@@ -65,6 +65,7 @@ struct ServerConfig {
     using Floating = ConfigValue<double>;
 
     String timezone{"unknown"};
+    Integer query_node_num{1};
 
     struct Network {
         String address{"unknown"};
diff --git a/proxy/src/message_client/ClientV2.cpp b/proxy/src/message_client/ClientV2.cpp
index 71dc789fb4..ae795e7955 100644
--- a/proxy/src/message_client/ClientV2.cpp
+++ b/proxy/src/message_client/ClientV2.cpp
@@ -2,6 +2,7 @@
 #include "pulsar/Result.h"
 #include "PartitionPolicy.h"
 #include "utils/CommonUtil.h"
+#include "config/ServerConfig.h"
 #include <omp.h>
 #include <numeric>
 #include <algorithm>
@@ -47,7 +48,7 @@ Status MsgClientV2::Init(const std::string &insert_delete,
 }
 
 int64_t GetQueryNodeNum() {
-    return 1;
+    return config.query_node_num();
 }
 
 Status