diff --git a/ServerEnclave/host/process_ae_requests.cpp b/ServerEnclave/host/process_ae_requests.cpp
index 54461a2d6..0d2ef0d2f 100755
--- a/ServerEnclave/host/process_ae_requests.cpp
+++ b/ServerEnclave/host/process_ae_requests.cpp
@@ -166,6 +166,7 @@ void process_ae_requests()
                             //     }
                             // }
                             ser->fetch_signed_messages(send_index, message);
+                            boost::this_thread::sleep(boost::posix_time::milliseconds(1));
                         }
                     }
                     ae_infos temp_info;
@@ -181,7 +182,7 @@ void process_ae_requests()
             }
             else
             {
-                // boost::this_thread::sleep(boost::posix_time::milliseconds(5));
+                boost::this_thread::sleep(boost::posix_time::milliseconds(5));
             }
         }
         catch (boost::thread_interrupted &)
diff --git a/aliyun-bj.sh b/aliyun-bj.sh
index 8daf85d66..42a51aad9 100755
--- a/aliyun-bj.sh
+++ b/aliyun-bj.sh
@@ -222,7 +222,9 @@ build_narrator(){
     echo "Build Narrator ServerEnclave"
     $ssh_config root@${cloud_ip} "
         cd ~/Narrator/ServerEnclave/;
+        git reset --hard;
         git pull;
+        rm -rf build;
         mkdir build;
         cd build;
         cmake ..;
diff --git a/aliyun-hz.sh b/aliyun-hz.sh
index 55bb4e503..6d6888cf0 100755
--- a/aliyun-hz.sh
+++ b/aliyun-hz.sh
@@ -211,7 +211,9 @@ build_narrator(){
     echo "Build Narrator ServerEnclave"
     $ssh_config root@${cloud_ip} "
         cd ~/Narrator/ServerEnclave/;
+        git reset --hard;
         git pull;
+        rm -rf build;
         mkdir build;
         cd build;
         cmake ..;
@@ -220,6 +222,7 @@ build_narrator(){
     echo "Build Narrator ServerEnclave Successful! Now build the AppEnclave"
     $ssh_config root@${cloud_ip} "
         cd ~/Narrator/AppEnclave/;
+        rm -rf build;
         mkdir build;
         cd build;
         cmake ..;