diff --git a/paddle/fluid/operators/detail/grpc_server.h b/paddle/fluid/operators/detail/grpc_server.h
index eae87de4201d6cfa8cb8579ee9983174caa691f7..e6ffc7066f24d5088a95801ed1c0670b24d5771f 100644
--- a/paddle/fluid/operators/detail/grpc_server.h
+++ b/paddle/fluid/operators/detail/grpc_server.h
@@ -71,8 +71,6 @@ class AsyncGRPCServer final : public RPCServer {
   std::unique_ptr<::grpc::Server> server_;
 
   // condition of the sub program
-  // std::mutex barrier_mutex_;
-  // mutable int barrier_cond_step_;
   std::condition_variable barrier_condition_;
 
   std::mutex mutex_ready_;