diff --git a/conf/config.json b/conf/config.json
index e8c8623..c05126a 100644
--- a/conf/config.json
+++ b/conf/config.json
@@ -1,6 +1,16 @@
 {
     "name": "Hero Union",
     "version": "0.1",
+
+    "task_data_max_size": 1024,
+    "task_cache_time": 86400,
+
+    "heroHeartTimeout": 20,
+    "notify_timeout": 8,
+
+    "reloadConfigFrequence": 10,
+    "heroHeartCheckFrequence": 10,
+
     "tokens": {
         "demo": "hello#world!"
     }
diff --git a/heroUnion.mjs b/heroUnion.mjs
index 74500e6..f6f7bf4 100644
--- a/heroUnion.mjs
+++ b/heroUnion.mjs
@@ -30,10 +30,12 @@ class HeroUnion {
     constructor() {
         this.config = null;
 
+        //默认配置
         //this.task_data_dir = path.resolve('./tmp/data/');    //任务数据保存目录
         this.task_cache_time = 86400;                          //任务数据最长缓存时间，单位：秒
         this.task_data_max_size = 1024;                        //任务数据最大字节数，单位：KB
         this.notify_timeout = 8;                               //回调通知请求超时时长，单位：秒
+        this.heroHeartTimeout = 600;                           //爬虫心跳超时时长，单位：秒
 
         this.stats = {
             start_time: common.getTimestampInSeconds()
@@ -66,7 +68,6 @@ class HeroUnion {
         };
 
         //爬虫相关数据
-        this.heroHeartTimeout = 600;        //爬虫心跳超时时长，单位：秒
         this.heroStatus = {
             'total':        0,
             'idle':         0,    //空闲
@@ -82,6 +83,23 @@ class HeroUnion {
     async getConfig(forceReload) {
         if ( !this.config || (typeof(forceReload) != 'undefined' && forceReload) ) {
             this.config = await common.getConfigFromJsonFile('config.json');
+
+            //覆盖默认配置
+            if (typeof(this.config.task_cache_time) != 'undefined' && this.config.task_cache_time) {
+                this.task_cache_time = this.config.task_cache_time;    //任务数据最长缓存时间，单位：秒
+            }
+
+            if (typeof(this.config.task_data_max_size) != 'undefined' && this.config.task_data_max_size) {
+                this.task_data_max_size = this.config.task_data_max_size;    //任务数据最大字节数，单位：KB
+            }
+
+            if (typeof(this.config.notify_timeout) != 'undefined' && this.config.notify_timeout) {
+                this.notify_timeout = this.config.notify_timeout;    //回调通知请求超时时长，单位：秒
+            }
+
+            if (typeof(this.config.heroHeartTimeout) != 'undefined' && this.config.heroHeartTimeout) {
+                this.heroHeartTimeout = this.config.heroHeartTimeout;    //爬虫心跳超时时长，单位：秒
+            }
         }
 
         return this.config;
@@ -278,20 +296,19 @@ class HeroUnion {
      * lang
      */
     heroOnboard(bot) {
-        let cachedBot = this.heros.find((item) => item.name == bot.name);
+        let cachedBotIndex = this.heros.findIndex((item) => item.name == bot.name),
+            cachedBot = cachedBotIndex > -1 ? this.heros[cachedBotIndex] : null;
 
         if (cachedBot) {    //如果是已经存在的爬虫
             if (cachedBot.status != bot.status) {
-                if (bot.status == 'idle') {
-                    this.heroStatus.idle ++;
-                    this.heroStatus.busy --;
-                }else {
-                    this.heroStatus.busy ++;
-                    this.heroStatus.idle --;
-                }
+                console.log('Hero %s status change from %s to %s', cachedBot.name, cachedBot.status, bot.status);
+                this.heroStatus[cachedBot.status] --;
+                this.heroStatus[bot.status] ++;
             }
 
-            cachedBot = bot;             //数据更新
+            this.heros[cachedBotIndex] = bot;             //数据更新
+
+            console.log('Hero %s is %s at %s', bot.name, bot.status, bot.timestamp);
         }else {
             this.heros.push(bot);        //添加新爬虫
 
@@ -301,6 +318,8 @@ class HeroUnion {
             }else {
                 this.heroStatus.busy ++;
             }
+
+            console.log('Hero %s is onboard at %s', bot.name, bot.timestamp);
         }
     }
 
@@ -309,7 +328,8 @@ class HeroUnion {
     heroHeartCheck() {
         let _self = this;
 
-        const frequence = 60;    //1 分钟检查一次
+        const frequence = typeof(this.config.heroHeartCheckFrequence) != 'undefined'
+                            && this.config.heroHeartCheckFrequence ? this.config.heroHeartCheckFrequence : 60;    //1 分钟检查一次
         const cronjob = cron.schedule(`*/${frequence} * * * * *`, () =>  {
             let timestamp = common.getTimestampInSeconds();
             _self.heros.forEach(function(item, index) {
@@ -318,7 +338,7 @@ class HeroUnion {
 
                     _self.heros[index].status = 'offline';
                     _self.heroStatus.offline ++;
-                    console.log('Hero %s is offline, its last heart beat is %s', item.name, item.timestamp);
+                    console.log('Hero %s is offline, last heart beat at %s', item.name, item.timestamp);
                 }
             });
         }, {
@@ -333,7 +353,8 @@ class HeroUnion {
     autoReloadConfigs() {
         let _self = this;
 
-        const frequence = 300;    //5 分钟重新加载一次
+        const frequence = typeof(this.config.reloadConfigFrequence) != 'undefined'
+                            && this.config.reloadConfigFrequence ? this.config.reloadConfigFrequence : 300;    //5 分钟重新加载一次
         const cronjob = cron.schedule(`*/${frequence} * * * * *`, () =>  {
             const forceReload = true;
             _self.getConfig(forceReload);
@@ -355,8 +376,8 @@ class HeroUnion {
     }
 
     //初始化
-    init() {
-        this.getConfig();
+    async init() {
+        await this.getConfig();
         this.autoReloadConfigs();
         this.heroHeartCheck();
     }