diff --git a/cmake/external_libs/libevent.cmake b/cmake/external_libs/libevent.cmake
index 553e1c65c40..902f19a5c7b 100644
--- a/cmake/external_libs/libevent.cmake
+++ b/cmake/external_libs/libevent.cmake
@@ -1,3 +1,5 @@
+set(libevent_CFLAGS "-fstack-protector-all -D_FORTIFY_SOURCE=2 -O2")
+set(libevent_LDFLAGS "-Wl,-z,now")
 mindspore_add_pkg(libevent
         VER 2.1.12
         LIBS event event_pthreads
diff --git a/serving/acl/acl_session.h b/serving/acl/acl_session.h
index c1ae025df2e..b60b9a60189 100644
--- a/serving/acl/acl_session.h
+++ b/serving/acl/acl_session.h
@@ -29,7 +29,6 @@
 
 namespace mindspore {
 namespace inference {
-
 class AclSession : public InferSession {
  public:
   AclSession();
diff --git a/serving/acl/dvpp_process.cc b/serving/acl/dvpp_process.cc
index 10530ad4917..b1b95ac5722 100644
--- a/serving/acl/dvpp_process.cc
+++ b/serving/acl/dvpp_process.cc
@@ -23,7 +23,6 @@
 
 namespace mindspore {
 namespace inference {
-
 DvppProcess::DvppProcess() {}
 
 DvppProcess::~DvppProcess() {}
@@ -1134,6 +1133,5 @@ Status DvppProcess::InitWithJsonConfig(const std::string &json_config) {
   }
   return SUCCESS;
 }
-
 }  // namespace inference
 }  // namespace mindspore
diff --git a/serving/acl/model_process.cc b/serving/acl/model_process.cc
index 4016d1c00b2..0c0debdb0b7 100644
--- a/serving/acl/model_process.cc
+++ b/serving/acl/model_process.cc
@@ -22,7 +22,6 @@
 
 namespace mindspore {
 namespace inference {
-
 Status ModelProcess::PreInitModelResource() {
   model_desc_ = aclmdlCreateDesc();
   aclError acl_ret = aclmdlGetDesc(model_desc_, model_id_);
@@ -428,6 +427,5 @@ size_t ModelProcess::GetBatchSize() const {
   }
   return static_cast<size_t>(input_infos_[0].dims[0]);
 }
-
 }  // namespace inference
 }  // namespace mindspore
diff --git a/serving/acl/model_process.h b/serving/acl/model_process.h
index ae716404ff5..c9995035aaf 100644
--- a/serving/acl/model_process.h
+++ b/serving/acl/model_process.h
@@ -25,7 +25,6 @@
 
 namespace mindspore {
 namespace inference {
-
 struct AclTensorInfo {
   void *device_data;
   size_t buffer_size;
@@ -78,7 +77,6 @@ class ModelProcess {
   void DestroyInputsBuffer();
   void DestroyOutputsBuffer();
 };
-
 }  // namespace inference
 }  // namespace mindspore
 
diff --git a/serving/core/http_process.cc b/serving/core/http_process.cc
index e738dca933a..c53dc408082 100644
--- a/serving/core/http_process.cc
+++ b/serving/core/http_process.cc
@@ -32,7 +32,6 @@ using nlohmann::json;
 
 namespace mindspore {
 namespace serving {
-
 const int BUF_MAX = 0x7FFFFFFF;
 static constexpr char HTTP_DATA[] = "data";
 static constexpr char HTTP_TENSOR[] = "tensor";
@@ -550,6 +549,5 @@ void http_handler_msg(struct evhttp_request *const req, void *const arg) {
   evbuffer_free(retbuff);
   MSI_TIME_STAMP_END(TotalRestfulPredict)
 }
-
 }  // namespace serving
 }  // namespace mindspore
diff --git a/serving/core/server.cc b/serving/core/server.cc
index 5a8112bb1f6..0a5a7f15b96 100644
--- a/serving/core/server.cc
+++ b/serving/core/server.cc
@@ -40,7 +40,6 @@ using ms_serving::PredictRequest;
 
 namespace mindspore {
 namespace serving {
-
 namespace {
 static const uint32_t uint32max = 0x7FFFFFFF;
 std::promise<void> exit_requested;
@@ -66,7 +65,6 @@ grpc::Status CreatGRPCStatus(const Status &status) {
       return grpc::Status::CANCELLED;
   }
 }
-
 }  // namespace
 
 // Service Implement
@@ -114,7 +112,6 @@ static std::pair<struct evhttp *, struct event_base *> NewHttpServer() {
   auto listener =
     evconnlistener_new_bind(eb, nullptr, nullptr, LEV_OPT_REUSEABLE | LEV_OPT_CLOSE_ON_EXEC | LEV_OPT_CLOSE_ON_FREE, -1,
                             reinterpret_cast<struct sockaddr *>(&sin), sizeof(sin));
-
   if (listener == nullptr) {
     MSI_LOG_ERROR << "Serving Error: RESTful server start failed, create http listener faild, port " << http_port;
     std::cout << "Serving Error: RESTful server start failed, create http listener faild, port " << http_port
diff --git a/serving/core/server.h b/serving/core/server.h
index a7795403e8b..8c9ac046d85 100644
--- a/serving/core/server.h
+++ b/serving/core/server.h
@@ -19,7 +19,6 @@
 #include "util/status.h"
 namespace mindspore {
 namespace serving {
-
 class Server {
  public:
   Server() = default;
diff --git a/serving/core/serving_tensor.cc b/serving/core/serving_tensor.cc
index 72225f37549..3fc1871ee4d 100644
--- a/serving/core/serving_tensor.cc
+++ b/serving/core/serving_tensor.cc
@@ -27,7 +27,6 @@ using std::vector;
 
 namespace mindspore {
 namespace serving {
-
 using inference::DataType;
 using inference::InferTensorBase;
 
@@ -191,6 +190,5 @@ const inference::InferImagesBase *ServingImagesRequest::operator[](size_t index)
   }
   return &(cache_[index]);
 }
-
 }  // namespace serving
 }  // namespace mindspore
diff --git a/serving/core/serving_tensor.h b/serving/core/serving_tensor.h
index a341046fef3..002f2dbbe4a 100644
--- a/serving/core/serving_tensor.h
+++ b/serving/core/serving_tensor.h
@@ -25,7 +25,6 @@
 
 namespace mindspore {
 namespace serving {
-
 class MS_API ServingTensor : public inference::InferTensorBase {
  public:
   // the other's lifetime must longer than this object
@@ -101,7 +100,6 @@ class ServingImagesRequest : public inference::ImagesRequestBase {
   const ms_serving::PredictRequest &request_;
   std::vector<ServingImages> cache_;
 };
-
 }  // namespace serving
 }  // namespace mindspore
 #endif  // MINDSPORE_SERVING_TENSOR_H_
diff --git a/serving/core/session.cc b/serving/core/session.cc
index a5204b60381..fb5d11cc450 100644
--- a/serving/core/session.cc
+++ b/serving/core/session.cc
@@ -35,7 +35,6 @@ using ms_serving::PredictRequest;
 
 namespace mindspore {
 namespace serving {
-
 Status Session::CreatDeviceSession(const std::string &device, uint32_t device_id) {
   session_ = inference::InferSession::CreateSession(device, device_id);
   if (session_ == nullptr) {
@@ -151,6 +150,5 @@ Status Session::GetModelInputsInfo(std::vector<inference::InferTensor> &tensor_l
   }
   return ret;
 }
-
 }  // namespace serving
 }  // namespace mindspore
diff --git a/serving/core/session.h b/serving/core/session.h
index 08168f30d09..fd597b192b9 100644
--- a/serving/core/session.h
+++ b/serving/core/session.h
@@ -28,7 +28,6 @@
 
 namespace mindspore {
 namespace serving {
-
 using inference::FAILED;
 using inference::INVALID_INPUTS;
 using inference::Status;
@@ -57,7 +56,6 @@ class Session {
 
   Status PredictInner(const PredictRequest &request, PredictReply &reply);
 };
-
 }  // namespace serving
 }  // namespace mindspore
 #endif  // MINDSPORE_SERVER_H
diff --git a/serving/core/util/file_system_operation.cc b/serving/core/util/file_system_operation.cc
index 66bbde34141..e66ccbfb1ae 100644
--- a/serving/core/util/file_system_operation.cc
+++ b/serving/core/util/file_system_operation.cc
@@ -29,7 +29,6 @@
 
 namespace mindspore {
 namespace serving {
-
 bool DirOrFileExist(const std::string &file_path) {
   int ret = access(file_path.c_str(), 0);
   return (ret == -1) ? false : true;
diff --git a/serving/core/util/option_parser.cc b/serving/core/util/option_parser.cc
index 83976655fa2..25adf3e24c4 100644
--- a/serving/core/util/option_parser.cc
+++ b/serving/core/util/option_parser.cc
@@ -23,7 +23,6 @@
 
 namespace mindspore {
 namespace serving {
-
 bool StartWith(const std::string &str, const std::string &expected) {
   return expected.empty() ||
          (str.size() >= expected.size() && memcmp(str.data(), expected.data(), expected.size()) == 0);
diff --git a/serving/core/version_control/model.cc b/serving/core/version_control/model.cc
index a656e9af919..27c666b68aa 100644
--- a/serving/core/version_control/model.cc
+++ b/serving/core/version_control/model.cc
@@ -19,7 +19,6 @@
 
 namespace mindspore {
 namespace serving {
-
 MindSporeModel::MindSporeModel(const std::string &model_name, const std::string &model_path,
                                const std::string &model_version, const time_t &last_update_time)
     : model_name_(model_name),
diff --git a/serving/core/version_control/version_controller.cc b/serving/core/version_control/version_controller.cc
index 59e98eb8af0..69aa17be6e3 100644
--- a/serving/core/version_control/version_controller.cc
+++ b/serving/core/version_control/version_controller.cc
@@ -25,7 +25,6 @@
 
 namespace mindspore {
 namespace serving {
-
 volatile bool stop_poll = false;
 
 std::string GetVersionFromPath(const std::string &path) {