Remove unused code

Former-commit-id: 5be2fd19cb451599de0c242b9023c5a15b45e204

cpp/src/server/MilvusServer.cpp

@@ -50,7 +50,6 @@ MilvusServer::StartService() {
     std::string address = server_config.GetValue(CONFIG_SERVER_ADDRESS, "127.0.0.1");
     int32_t port = server_config.GetInt32Value(CONFIG_SERVER_PORT, 19530);
     std::string protocol = server_config.GetValue(CONFIG_SERVER_PROTOCOL, "binary");
-    std::string mode = server_config.GetValue(CONFIG_SERVER_MODE, "thread_pool");
 
     try {
         DBWrapper::DB();//initialize db
@@ -68,30 +67,22 @@ MilvusServer::StartService() {
         } else if (protocol == "compact") {
             protocol_factory.reset(new TCompactProtocolFactory());
         } else {
-            //SERVER_LOG_INFO << "Service protocol: " << protocol << " is not supported currently";
+            // SERVER_LOG_INFO << "Service protocol: " << protocol << " is not supported currently";
             return;
         }
 
-        std::string mode = "thread_pool";
-        if (mode == "simple") {
-            s_server.reset(new TSimpleServer(processor, server_transport, transport_factory, protocol_factory));
-            s_server->serve();
-        } else if (mode == "thread_pool") {
-            stdcxx::shared_ptr<ThreadManager> threadManager(ThreadManager::newSimpleThreadManager());
-            stdcxx::shared_ptr<PosixThreadFactory> threadFactory(new PosixThreadFactory());
-            threadManager->threadFactory(threadFactory);
-            threadManager->start();
-
-            s_server.reset(new ThreadPoolServer(processor,
-                                                 server_transport,
-                                                 transport_factory,
-                                                 protocol_factory,
-                                                 threadManager));
-            s_server->serve();
-        } else {
-            //SERVER_LOG_INFO << "Service mode: " << mode << " is not supported currently";
-            return;
-        }
+        stdcxx::shared_ptr<ThreadManager> threadManager(ThreadManager::newSimpleThreadManager());
+        stdcxx::shared_ptr<PosixThreadFactory> threadFactory(new PosixThreadFactory());
+        threadManager->threadFactory(threadFactory);
+        threadManager->start();
+
+        s_server.reset(new ThreadPoolServer(processor,
+                                             server_transport,
+                                             transport_factory,
+                                             protocol_factory,
+                                             threadManager));
+        s_server->serve();
+
     } catch (apache::thrift::TException& ex) {
         std::cout << "ERROR! " << ex.what() << std::endl;
         kill(0, SIGUSR1);

cpp/src/server/ServerConfig.h

@@ -18,7 +18,6 @@ static const std::string CONFIG_SERVER = "server_config";
 static const std::string CONFIG_SERVER_ADDRESS = "address";
 static const std::string CONFIG_SERVER_PORT = "port";
 static const std::string CONFIG_SERVER_PROTOCOL = "transfer_protocol";
-static const std::string CONFIG_SERVER_MODE = "server_mode";
 static const std::string CONFIG_CLUSTER_MODE = "mode";
 
 static const std::string CONFIG_DB = "db_config";