diff --git a/README-zh.md b/README-zh.md
index 60a37c6f..db50c3f3 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -12,7 +12,7 @@
 
 基于Golang的分布式爬虫管理平台，支持Python、NodeJS、Go、Java、PHP等多种编程语言以及多种爬虫框架。
 
-[查看演示 Demo](http://crawlab.cn:8080) | [文档](https://tikazyq.github.io/crawlab-docs)
+[查看演示 Demo](http://crawlab.cn/demo) | [文档](https://tikazyq.github.io/crawlab-docs)
 
 ## 安装
 
diff --git a/README.md b/README.md
index 7ad849e5..3f7fe0b2 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 Golang-based distributed web crawler management platform, supporting various languages including Python, NodeJS, Go, Java, PHP and various web crawler frameworks including Scrapy, Puppeteer, Selenium.
 
-[Demo](http://crawlab.cn:8080) | [Documentation](https://tikazyq.github.io/crawlab-docs)
+[Demo](http://crawlab.cn/demo) | [Documentation](https://tikazyq.github.io/crawlab-docs)
 
 ## Installation
 
diff --git a/backend/main.go b/backend/main.go
index b6bb191d..489a17ce 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -17,6 +17,7 @@ func main() {
 
 	// 初始化配置
 	if err := config.InitConfig(""); err != nil {
+		log.Error("init config error:" + err.Error())
 		panic(err)
 	}
 	log.Info("初始化配置成功")
@@ -30,6 +31,7 @@ func main() {
 
 	// 初始化Mongodb数据库
 	if err := database.InitMongo(); err != nil {
+		log.Error("init mongodb error:" + err.Error())
 		debug.PrintStack()
 		panic(err)
 	}
@@ -37,6 +39,7 @@ func main() {
 
 	// 初始化Redis数据库
 	if err := database.InitRedis(); err != nil {
+		log.Error("init redis error:" + err.Error())
 		debug.PrintStack()
 		panic(err)
 	}
@@ -45,6 +48,7 @@ func main() {
 	if services.IsMaster() {
 		// 初始化定时任务
 		if err := services.InitScheduler(); err != nil {
+			log.Error("init scheduler error:" + err.Error())
 			debug.PrintStack()
 			panic(err)
 		}
@@ -53,6 +57,7 @@ func main() {
 
 	// 初始化任务执行器
 	if err := services.InitTaskExecutor(); err != nil {
+		log.Error("init task executor error:" + err.Error())
 		debug.PrintStack()
 		panic(err)
 	}
@@ -60,12 +65,14 @@ func main() {
 
 	// 初始化节点服务
 	if err := services.InitNodeService(); err != nil {
+		log.Error("init node service error:" + err.Error())
 		panic(err)
 	}
 	log.Info("初始化节点配置成功")
 
 	// 初始化爬虫服务
 	if err := services.InitSpiderService(); err != nil {
+		log.Error("init spider service error:" + err.Error())
 		debug.PrintStack()
 		panic(err)
 	}
@@ -73,6 +80,7 @@ func main() {
 
 	// 初始化用户服务
 	if err := services.InitUserService(); err != nil {
+		log.Error("init user service error:" + err.Error())
 		debug.PrintStack()
 		panic(err)
 	}
@@ -91,7 +99,7 @@ func main() {
 		app.POST("/nodes/:id", routes.PostNode)             // 修改节点
 		app.GET("/nodes/:id/tasks", routes.GetNodeTaskList) // 节点任务列表
 		app.GET("/nodes/:id/system", routes.GetSystemInfo)  // 节点任务列表
-		app.DELETE("/nodes/:id", routes.DeleteNode)			// 删除节点
+		app.DELETE("/nodes/:id", routes.DeleteNode)         // 删除节点
 		// 爬虫
 		app.GET("/spiders", routes.GetSpiderList)              // 爬虫列表
 		app.GET("/spiders/:id", routes.GetSpider)              // 爬虫详情
@@ -138,6 +146,7 @@ func main() {
 	host := viper.GetString("server.host")
 	port := viper.GetString("server.port")
 	if err := app.Run(host + ":" + port); err != nil {
+		log.Error("run server error:" + err.Error())
 		panic(err)
 	}
 }
diff --git a/examples/worker/README.md b/examples/worker/README.md
index 0a27310c..e8638ccd 100644
--- a/examples/worker/README.md
+++ b/examples/worker/README.md
@@ -21,3 +21,6 @@ docker build -t crawlab:worker .
 ```
 docker-compose up -d
 ```
+
+如果在多台服务器使用`docker-compose.yml`进行编排，可能出现节点注册不上的问题，因为mac地址冲突了。
+可以使用`networks`定义当前节点的IP段，这样就可以正常注册到redis
\ No newline at end of file
diff --git a/examples/worker/docker-compose.yml b/examples/worker/docker-compose.yml
index 3508b923..63d9c90c 100644
--- a/examples/worker/docker-compose.yml
+++ b/examples/worker/docker-compose.yml
@@ -5,4 +5,14 @@ services:
     container_name: crawlab-worker
     volumes:
     - $PWD/conf/config.yml:/opt/crawlab/conf/config.yml
-    - $PWD/crawlab:/usr/local/bin/crawlab
\ No newline at end of file
+    # 二进制包使用源码生成
+    - $PWD/crawlab:/usr/local/bin/crawlab
+    networks:
+      - crawlabnet
+
+networks:
+  crawlabnet:
+    ipam:
+      driver: default
+      config:
+        - subnet: 172.30.0.0/16
\ No newline at end of file
diff --git a/jenkins/docker-compose.yml b/jenkins/docker-compose.yml
index fd7d2904..924922a0 100644
--- a/jenkins/docker-compose.yml
+++ b/jenkins/docker-compose.yml
@@ -25,6 +25,7 @@ services:
     depends_on:
       - mongo
       - redis
+    replicas: 3
   mongo:
     image: mongo:latest
     restart: always