merge branch-0.4.0

Former-commit-id: 8ab13046a40eb49349070ce4779dcae206647e02

cpp/src/sdk/examples/grpcsimple/src/ClientTest.cpp

@@ -310,9 +310,9 @@ ClientTest::Test(const std::string& address, const std::string& port) {
     }
 
     {//wait unit build index finish
-//        std::cout << "Wait until build all index done" << std::endl;
-//        Status stat = conn->BuildIndex(TABLE_NAME);
-//        std::cout << "BuildIndex function call status: " << stat.ToString() << std::endl;
+        std::cout << "Wait until build all index done" << std::endl;
+        Status stat = conn->BuildIndex(TABLE_NAME);
+        std::cout << "BuildIndex function call status: " << stat.ToString() << std::endl;
     }
 
     {//search vectors after build index finish

cpp/src/sdk/grpc/GrpcClient.cpp

@@ -190,9 +190,7 @@ GrpcClient::Ping(std::string &result, const std::string& cmd) {
     ::milvus::grpc::ServerStatus response;
     ::milvus::grpc::Command command;
     command.set_cmd(cmd);
-    std::cout << "in ping \n";
     ::grpc::Status status = stub_->Ping(&context, command, &response);
-    std::cout << "finish ping stub \n";
 
     result = response.info();
     if (!status.ok()) {

cpp/src/server/grpc_impl/RequestHandler.cpp

@@ -107,7 +107,6 @@ RequestHandler::GetTableRowCount(::grpc::ServerContext* context, const ::milvus:
 
 ::grpc::Status
 RequestHandler::ShowTables(::grpc::ServerContext* context, const ::milvus::grpc::Command* request, ::grpc::ServerWriter< ::milvus::grpc::TableName>* writer) {
-    std::cout << "in handler\n";
     BaseTaskPtr task_ptr = ShowTablesTask::Create(*writer);
     ::milvus::grpc::Status grpc_status;
     RequestScheduler::ExecTask(task_ptr, &grpc_status);
@@ -121,7 +120,6 @@ RequestHandler::ShowTables(::grpc::ServerContext* context, const ::milvus::grpc:
 
 ::grpc::Status
 RequestHandler::Ping(::grpc::ServerContext* context, const ::milvus::grpc::Command* request, ::milvus::grpc::ServerStatus* response) {
-    std::cout << "in handler\n";
     std::string result;
     BaseTaskPtr task_ptr = PingTask::Create(request->cmd(), result);
     ::milvus::grpc::Status grpc_status;