diff --git a/webapp/controller/ActivityController.class.php b/webapp/controller/ActivityController.class.php
index bfbdbc8..8597a04 100644
--- a/webapp/controller/ActivityController.class.php
+++ b/webapp/controller/ActivityController.class.php
@@ -769,8 +769,9 @@ class ActivityController{
     //redpack201908191405_xxxxx
     protected function getOrderId($accountid)
     {
+        $mysql_conf = getMysqlConfig(crc32($accountid));
         $conn = $this->getMysql($accountid);
-        $orderid_pre = 'redpack' . strftime('%y%m%d%H%M%S');
+        $orderid_pre = 'rp' . strftime('%y%m%d%H%M%S');
         $ret = $conn->execScript("INSERT INTO orderidx(createtime) VALUES(:createtime);",
                                  array(
                                      'createtime' => time()
@@ -782,7 +783,7 @@ class ActivityController{
         if (empty($row)) {
             die();
         }
-        $orderid = $orderid_pre . 'idx' . $row[0];
+        $orderid = $orderid_pre . 'db' . $mysql_conf['instance_id'] .  'idx' . $row[0];
         return $orderid;
     }