diff --git a/1.x/sign/src/server/app.js b/1.x/sign/src/server/app.js
index a1981aa..42cdf90 100644
--- a/1.x/sign/src/server/app.js
+++ b/1.x/sign/src/server/app.js
@@ -19,8 +19,7 @@ if (!module.parent) {
     console.log('%s is listening port: %d !!!', config.app.name, config.app.port);
   })
   .catch(function(err) {
-    console.error('connect to %s error', config.mongo.url, err.message);
-    process.exit(1);
+    console.error(err);
   });
 }
 
diff --git a/1.x/sign/src/server/config/db.js b/1.x/sign/src/server/config/db.js
index 4a4a3b7..167c2bb 100644
--- a/1.x/sign/src/server/config/db.js
+++ b/1.x/sign/src/server/config/db.js
@@ -7,7 +7,8 @@ module.exports = function() {
   return new Promise(function(resolve, reject) {
     mongoose.connect(config.mongo.url, function(err) {
       if (err) {
-        return reject(err);
+        console.error('connect to %s error', config.mongo.url, err.message);
+        process.exit(1);
       }
       console.info(`mongodb connected: ${config.mongo.url} !!!`);
       return resolve();