diff --git a/server/web3dbspider/services/dbevent_process.js b/server/web3dbspider/services/dbevent_process.js
index a3157d0..b0a6d80 100644
--- a/server/web3dbspider/services/dbevent_process.js
+++ b/server/web3dbspider/services/dbevent_process.js
@@ -133,6 +133,10 @@ class DbEventProcess extends BaseService {
     return instName;
   }
 
+  genLogHead(msg) {
+    return this.getInstanceName() + ' ' + msg;
+  }
+
   getTableName() {
     return this.eventConf['table_name'];
   }