diff --git a/cpp/src/thrift/VectorService.thrift b/cpp/src/thrift/VectorService.thrift
index 36bab9c69f7b560e0f12d1094a8a4bf7ee4d7df1..4608e288f23707a0f0f33857e67fd9e5a3c22646 100644
--- a/cpp/src/thrift/VectorService.thrift
+++ b/cpp/src/thrift/VectorService.thrift
@@ -3,6 +3,16 @@
  * Unauthorized copying of this file, via any medium is strictly prohibited.
  * Proprietary and confidential.
  ******************************************************************************/
+namespace cl zilliz
+namespace cpp zilliz
+namespace py zilliz
+namespace d zilliz
+namespace dart zilliz
+namespace java zilliz
+namespace perl zilliz
+namespace php zilliz
+namespace haxe zilliz
+namespace netcore zilliz
 
 enum VecErrCode {
     SUCCESS = 0,
diff --git a/cpp/src/thrift/gen-cpp/VecService.cpp b/cpp/src/thrift/gen-cpp/VecService.cpp
index 71168f9d2534452fe6d881e47661124397383f68..78c1021af225d98dfeaf28faf38723c6d04a290b 100644
--- a/cpp/src/thrift/gen-cpp/VecService.cpp
+++ b/cpp/src/thrift/gen-cpp/VecService.cpp
@@ -6,7 +6,7 @@
  */
 #include "VecService.h"
 
-
+namespace zilliz {
 
 
 VecService_add_group_args::~VecService_add_group_args() throw() {
@@ -4673,5 +4673,5 @@ void VecServiceConcurrentClient::recv_search_binary_vector_batch(VecSearchResult
   } // end while(true)
 }
 
-
+} // namespace
 
diff --git a/cpp/src/thrift/gen-cpp/VecService.h b/cpp/src/thrift/gen-cpp/VecService.h
index d1bfc68d9ddcfdb088938a489bb98d109b377236..be30631e6a03b5e6fa8e9c78209471ec2eb5049f 100644
--- a/cpp/src/thrift/gen-cpp/VecService.h
+++ b/cpp/src/thrift/gen-cpp/VecService.h
@@ -11,7 +11,7 @@
 #include <thrift/async/TConcurrentClientSyncInfo.h>
 #include "VectorService_types.h"
 
-
+namespace zilliz {
 
 #ifdef _MSC_VER
   #pragma warning( push )
@@ -1725,6 +1725,6 @@ class VecServiceConcurrentClient : virtual public VecServiceIf {
   #pragma warning( pop )
 #endif
 
-
+} // namespace
 
 #endif
diff --git a/cpp/src/thrift/gen-cpp/VecService_server.skeleton.cpp b/cpp/src/thrift/gen-cpp/VecService_server.skeleton.cpp
index 8cd2e03b161ed2802307a0bebc01aa8c12c374f6..f87088d3882e2f226da5ed185d7b58a770310644 100644
--- a/cpp/src/thrift/gen-cpp/VecService_server.skeleton.cpp
+++ b/cpp/src/thrift/gen-cpp/VecService_server.skeleton.cpp
@@ -12,6 +12,8 @@ using namespace ::apache::thrift::protocol;
 using namespace ::apache::thrift::transport;
 using namespace ::apache::thrift::server;
 
+using namespace  ::zilliz;
+
 class VecServiceHandler : virtual public VecServiceIf {
  public:
   VecServiceHandler() {
diff --git a/cpp/src/thrift/gen-cpp/VectorService_constants.cpp b/cpp/src/thrift/gen-cpp/VectorService_constants.cpp
index b9275d5961d86ee88d70f3757cdafa84823e8676..3ae3e76ba9659309be8fbf337ddc10f4cc4d0182 100644
--- a/cpp/src/thrift/gen-cpp/VectorService_constants.cpp
+++ b/cpp/src/thrift/gen-cpp/VectorService_constants.cpp
@@ -6,12 +6,12 @@
  */
 #include "VectorService_constants.h"
 
-
+namespace zilliz {
 
 const VectorServiceConstants g_VectorService_constants;
 
 VectorServiceConstants::VectorServiceConstants() {
 }
 
-
+} // namespace
 
diff --git a/cpp/src/thrift/gen-cpp/VectorService_constants.h b/cpp/src/thrift/gen-cpp/VectorService_constants.h
index 501980cbfee4f684051157e4fa48767af5ee4ddf..3b950c228e920a6eb747a865287a9d295d2a559a 100644
--- a/cpp/src/thrift/gen-cpp/VectorService_constants.h
+++ b/cpp/src/thrift/gen-cpp/VectorService_constants.h
@@ -9,7 +9,7 @@
 
 #include "VectorService_types.h"
 
-
+namespace zilliz {
 
 class VectorServiceConstants {
  public:
@@ -19,6 +19,6 @@ class VectorServiceConstants {
 
 extern const VectorServiceConstants g_VectorService_constants;
 
-
+} // namespace
 
 #endif
diff --git a/cpp/src/thrift/gen-cpp/VectorService_types.cpp b/cpp/src/thrift/gen-cpp/VectorService_types.cpp
index 61a4f4e08194eb31df9f3f923ae8271ba759be8b..1db0f177eda3448ce4219af99043936a8a6d9ea1 100644
--- a/cpp/src/thrift/gen-cpp/VectorService_types.cpp
+++ b/cpp/src/thrift/gen-cpp/VectorService_types.cpp
@@ -11,7 +11,7 @@
 
 #include <thrift/TToString.h>
 
-
+namespace zilliz {
 
 int _kVecErrCodeValues[] = {
   VecErrCode::SUCCESS,
@@ -1793,4 +1793,4 @@ void VecSearchFilter::printTo(std::ostream& out) const {
   out << ")";
 }
 
-
+} // namespace
diff --git a/cpp/src/thrift/gen-cpp/VectorService_types.h b/cpp/src/thrift/gen-cpp/VectorService_types.h
index cbc996f07c107590b36963243fafc2989a97d57b..b59d95c476dbf5daa66d0fc7f5add7bd164c9907 100644
--- a/cpp/src/thrift/gen-cpp/VectorService_types.h
+++ b/cpp/src/thrift/gen-cpp/VectorService_types.h
@@ -18,7 +18,7 @@
 #include <thrift/stdcxx.h>
 
 
-
+namespace zilliz {
 
 struct VecErrCode {
   enum type {
@@ -648,6 +648,6 @@ void swap(VecSearchFilter &a, VecSearchFilter &b);
 
 std::ostream& operator<<(std::ostream& out, const VecSearchFilter& obj);
 
-
+} // namespace
 
 #endif
diff --git a/cpp/test_client/src/ClientTest.cpp b/cpp/test_client/src/ClientTest.cpp
index 7ef62a068012c70130176388dff4acdfd95c3f7e..37f1764afc9224b4655033c846798c8eae7f920b 100644
--- a/cpp/test_client/src/ClientTest.cpp
+++ b/cpp/test_client/src/ClientTest.cpp
@@ -12,6 +12,7 @@
 
 #include <time.h>
 
+using namespace zilliz;
 using namespace zilliz::vecwise;
 
 namespace {