diff --git a/app/Console/Kernel.php b/app/Console/Kernel.php
index 98617af..5d432f7 100644
--- a/app/Console/Kernel.php
+++ b/app/Console/Kernel.php
@@ -29,7 +29,7 @@ protected function schedule(Schedule $schedule)
         $schedule->command('sanctum:prune-expired --hours=24')->daily();
 
         // 扣费
-        $schedule->job(new HostCost(now()->hour))->hourly()->withoutOverlapping()->onOneServer();
+        $schedule->job(new HostCost(now()->minute))->everyMinute()->withoutOverlapping()->onOneServer();
 
         // 获取模块暴露的信息（服务器等）
         $schedule->job(new FetchModule())->withoutOverlapping()->everyMinute();
diff --git a/app/Http/Controllers/Admin/ModuleController.php b/app/Http/Controllers/Admin/ModuleController.php
index c76385b..b92bdbd 100644
--- a/app/Http/Controllers/Admin/ModuleController.php
+++ b/app/Http/Controllers/Admin/ModuleController.php
@@ -61,21 +61,14 @@ public function store(Request $request): RedirectResponse
         $module->name = $request->name;
         $module->api_token = $api_token;
         $module->url = $request->url;
+        $module->status = $request->status;
+
         $module->save();
 
         return redirect()->route('admin.modules.index')->with('success', '模块创建成功, 请重置以获得 API Token。');
 
     }
 
-    private function rules(): array
-    {
-        return [
-            'id' => 'required|string|max:255',
-            'name' => 'required|string|max:255',
-            'url' => 'required|url',
-        ];
-    }
-
     /**
      * Display the specified resource.
      *
@@ -128,6 +121,7 @@ public function update(Request $request, Module $module): RedirectResponse
         $module->id = $request->id;
         $module->name = $request->name;
         $module->url = $request->url;
+        $module->status = $request->status;
 
         $module->save();
 
@@ -156,4 +150,15 @@ public function destroy(Module $module): RedirectResponse
 
         return redirect()->route('admin.modules.index')->with('success', '模块已删除。');
     }
+
+    private function rules(): array
+    {
+        return [
+            'id' => 'required|string|max:255',
+            'name' => 'required|string|max:255',
+            'url' => 'required|url',
+            'status' => 'required|string|in:up,down,maintenance',
+        ];
+    }
+
 }
diff --git a/app/Http/Controllers/Api/ModuleController.php b/app/Http/Controllers/Api/ModuleController.php
index 81f86e1..2848306 100644
--- a/app/Http/Controllers/Api/ModuleController.php
+++ b/app/Http/Controllers/Api/ModuleController.php
@@ -20,6 +20,4 @@ public function call(Request $request, Module $module): JsonResponse
     {
         return (new \App\Http\Controllers\Modules\ModuleController())->call($request, $module);
     }
-
-
 }
diff --git a/app/Jobs/CheckHostIfExistsOnModule.php b/app/Jobs/CheckHostIfExistsOnModule.php
index 696dcab..430ed3a 100644
--- a/app/Jobs/CheckHostIfExistsOnModule.php
+++ b/app/Jobs/CheckHostIfExistsOnModule.php
@@ -32,11 +32,15 @@ public function __construct()
      */
     public function handle()
     {
-        // now 添加1.5小时
-
-        //
+        // 删除所有模块中不存在的主机
         Host::with('module')->where('created_at', '<', now()->subHour())->chunk(100, function ($hosts) {
             foreach ($hosts as $host) {
+
+                // 忽略维护中的模块
+                if ($host->module->status !== 'up') {
+                    continue;
+                }
+
                 $http = Http::module($host->module->api_token, $host->module->url);
                 $response = $http->get('hosts/' . $host->id);
 
diff --git a/app/Jobs/HostCost.php b/app/Jobs/HostCost.php
index f22a32a..acbf6fe 100644
--- a/app/Jobs/HostCost.php
+++ b/app/Jobs/HostCost.php
@@ -13,17 +13,17 @@ class HostCost implements ShouldQueue
 {
     use InteractsWithQueue, Queueable, SerializesModels, Lock;
 
-    public $hour, $cache, $user;
+    public $minute, $cache, $user;
 
     /**
      * Create a new job instance.
      *
      * @return void
      */
-    public function __construct($hour)
+    public function __construct($minute)
     {
         //
-        $this->hour = $hour;
+        $this->minute = $minute;
     }
 
     /**
@@ -34,7 +34,7 @@ public function __construct($hour)
     public function handle()
     {
         // chunk hosts and load user
-        Host::where('hour_at', $this->hour)->whereIn('status', ['running', 'stopped'])->with('user')->chunk(1000, function ($hosts) {
+        Host::where('minute_at', $this->minute)->whereIn('status', ['running', 'stopped'])->with('user')->chunk(500, function ($hosts) {
             foreach ($hosts as $host) {
                 $host->cost();
             }
diff --git a/app/Jobs/Module/FetchModule.php b/app/Jobs/Module/FetchModule.php
index 5615488..55c0766 100644
--- a/app/Jobs/Module/FetchModule.php
+++ b/app/Jobs/Module/FetchModule.php
@@ -36,13 +36,13 @@ public function handle()
     {
         // 获取运行完成的时间
 
-        $last_run = Cache::get('servers_updated_at', false);
-        if ($last_run !== false) {
-            // 如果和上次运行时间间隔小于一分钟，则不运行
-            if (now()->diffInMinutes($last_run) < 1) {
-                return;
-            }
-        }
+        // $last_run = Cache::get('servers_updated_at', false);
+        // if ($last_run !== false) {
+        //     // 如果和上次运行时间间隔小于一分钟，则不运行
+        //     if (now()->diffInMinutes($last_run) < 1) {
+        //         return;
+        //     }
+        // }
 
         //
         Module::whereNotNull('url')->chunk(100, function ($modules) {
@@ -58,8 +58,13 @@ public function handle()
                     continue;
                 }
 
-
                 if ($response->successful()) {
+
+                    // 如果模块状态不为 up，则更新为 up
+                    if ($module->status !== 'up') {
+                        $module->status = 'up';
+                    }
+
                     $json = $response->json();
 
                     if (isset($json['data']['servers']) && is_array($json['data']['servers'])) {
@@ -79,10 +84,18 @@ public function handle()
 
                         broadcast(new ServerEvent($servers));
                     }
-                    // $module->update([
-                    //     'data' => $response->json()
-                    // ]);
+
+                } else {
+
+                    // if module return maintenance, then set module status to maintenance
+                    if ($response->status() == 503) {
+                        $module->status = 'maintenance';
+                    } else {
+                        $module->status = 'down';
+                    }
                 }
+
+                $module->save();
             }
 
             // if local
@@ -93,7 +106,7 @@ public function handle()
             }
 
             // 缓存运行完成的时间
-            Cache::put('servers_updated_at', now(), now()->addMinutes(10));
+            // Cache::put('servers_updated_at', now(), now()->addMinutes(10));
         });
     }
 }
diff --git a/app/Models/Host.php b/app/Models/Host.php
index f6faef0..ad9479e 100644
--- a/app/Models/Host.php
+++ b/app/Models/Host.php
@@ -98,6 +98,7 @@ protected static function boot()
 
         static::creating(function ($model) {
             $model->hour_at = now()->hour;
+            $model->minute_at = now()->minute_at;
 
             if ($model->price !== null) {
                 $model->price = round($model->price, 2);
@@ -201,7 +202,10 @@ public function safeDelete(): bool
     {
         // 如果创建时间大于大于 1 小时
         if ($this->created_at->diffInHours(now()) > 1) {
-            $this->cost();
+            // 如果当前时间比扣费时间小，则说明没有扣费。执行扣费。
+            if (now()->minute < $this->minute_at) {
+                $this->cost();
+            }
         }
 
         dispatch(new \App\Jobs\Module\Host($this, 'delete'));
diff --git a/database/migrations/2022_11_23_103355_add_minute_at_to_hosts.php b/database/migrations/2022_11_23_103355_add_minute_at_to_hosts.php
new file mode 100644
index 0000000..136c1a0
--- /dev/null
+++ b/database/migrations/2022_11_23_103355_add_minute_at_to_hosts.php
@@ -0,0 +1,47 @@
+<?php
+
+use App\Models\Host;
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('hosts', function (Blueprint $table) {
+            //
+
+            $table->tinyInteger('minute_at')->index()->nullable()->after('hour_at');
+        });
+
+        echo PHP_EOL . '将开始刷新主机的分钟数...';
+        Host::chunk(100, function ($hosts) {
+            foreach ($hosts as $host) {
+                echo '刷新: ' . $host->id . PHP_EOL;
+                $host->minute_at = $host->created_at->minute;
+                $host->save();
+            }
+        });
+        echo ' 完成!' . PHP_EOL;
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('hosts', function (Blueprint $table) {
+            //
+
+            $table->dropColumn('minute_at');
+        });
+    }
+};
diff --git a/database/migrations/2022_11_23_104838_add_status_to_modules_table.php b/database/migrations/2022_11_23_104838_add_status_to_modules_table.php
new file mode 100644
index 0000000..2c1ddee
--- /dev/null
+++ b/database/migrations/2022_11_23_104838_add_status_to_modules_table.php
@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('modules', function (Blueprint $table) {
+            //
+            $table->enum('status', ['up', 'down', 'maintenance'])->index()->default('down')->after('url');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('modules', function (Blueprint $table) {
+            //
+
+            $table->dropColumn('status');
+        });
+    }
+};
diff --git a/resources/views/admin/modules/create.blade.php b/resources/views/admin/modules/create.blade.php
index 57f454d..d4efe04 100644
--- a/resources/views/admin/modules/create.blade.php
+++ b/resources/views/admin/modules/create.blade.php
@@ -3,27 +3,37 @@
 @section('title', '新建模块')
 
 @section('content')
-    <h3>新建模块</h3>
+<h3>新建模块</h3>
 
-    <form method="POST" action="{{ route('admin.modules.store')}}">
-        @csrf
+<form method="POST" action="{{ route('admin.modules.store')}}">
+    @csrf
 
-        <div class="form-group">
-            <label for="name">ID</label>
-            <input type="text" class="form-control" id="id" name="id">
-        </div>
+    <div class="form-group">
+        <label for="name">ID</label>
+        <input type="text" class="form-control" id="id" name="id">
+    </div>
 
-        <div class="form-group">
-            <label for="name">名称</label>
-            <input type="text" class="form-control" id="name" name="name">
-        </div>
+    <div class="form-group">
+        <label for="name">名称</label>
+        <input type="text" class="form-control" id="name" name="name">
+    </div>
 
-        <div class="form-group mt-1">
-            <label for="name">对端地址</label>
-            <input type="text" class="form-control" id="url" name="url">
-        </div>
+    <div class="form-group mt-1">
+        <label for="name">对端地址</label>
+        <input type="text" class="form-control" id="url" name="url">
+    </div>
 
-        <button type="submit" class="btn btn-primary mt-3">提交</button>
-    </form>
+    <!-- 选择状态 -->
+    <div class="form-group mt-1">
+        <label for="status">状态</label>
+        <select class="form-control" id="status" name="status">
+            <option value="up">正常</option>
+            <option value="down">异常</option>
+            <option value="maintenance">维护模式</option>
+        </select>
+    </div>
 
-@endsection
+    <button type="submit" class="btn btn-primary mt-3">提交</button>
+</form>
+
+@endsection
\ No newline at end of file
diff --git a/resources/views/admin/modules/edit.blade.php b/resources/views/admin/modules/edit.blade.php
index 6ba3719..3fd00a6 100644
--- a/resources/views/admin/modules/edit.blade.php
+++ b/resources/views/admin/modules/edit.blade.php
@@ -3,45 +3,53 @@
 @section('title', '模块:' . $module->name)
 
 @section('content')
-    <h3>{{ $module->name }}</h3>
-    <a class="mt-3" href="{{ route('admin.modules.show', $module) }}">查看</a>
+<h3>{{ $module->name }}</h3>
+<a class="mt-3" href="{{ route('admin.modules.show', $module) }}">查看</a>
 
-    <form method="POST" action="{{ route('admin.modules.update', $module)}}">
-        @csrf
-        @method('PATCH')
+<form method="POST" action="{{ route('admin.modules.update', $module)}}">
+    @csrf
+    @method('PATCH')
 
-        <div class="form-group">
-            <label for="name">ID (修改后，路由也会改变)</label>
-            <input type="text" class="form-control" id="id" name="id" value="{{ $module->id }}">
-        </div>
+    <div class="form-group">
+        <label for="name">ID (修改后，路由也会改变)</label>
+        <input type="text" class="form-control" id="id" name="id" value="{{ $module->id }}">
+    </div>
 
-        <div class="form-group">
-            <label for="name">名称</label>
-            <input type="text" class="form-control" id="name" name="name" value="{{ $module->name }}">
-        </div>
+    <div class="form-group">
+        <label for="name">名称</label>
+        <input type="text" class="form-control" id="name" name="name" value="{{ $module->name }}">
+    </div>
 
-        <div class="form-group mt-1">
-            <label for="name">对端地址</label>
-            <input type="text" class="form-control" id="url" name="url" value="{{ $module->url }}">
-        </div>
+    <div class="form-group mt-1">
+        <label for="name">对端地址</label>
+        <input type="text" class="form-control" id="url" name="url" value="{{ $module->url }}">
+    </div>
 
-        <div class="form-check mt-1">
-            <input class="form-check-input" type="checkbox" value="1" id="reset_api_token" name="reset_api_token">
-            <label class="form-check-label" for="reset_api_token">
-                重置 Api Token(重置后，需要到对应的模块中更新，否则会导致模块无法正常工作)
-            </label>
-        </div>
+    <div class="form-group mt-1">
+        <label for="status">状态</label>
+        <select class="form-control" id="status" name="status">
+            <option value="up" @if ($module->status === 'up') selected @endif>正常</option>
+            <option value="down" @if ($module->status === 'down') selected @endif>异常</option>
+            <option value="maintenance" @if ($module->status === 'maintenance') selected @endif>维护模式</option>
+        </select>
+    </div>
 
-        <button type="submit" class="btn btn-primary mt-3">提交</button>
-    </form>
+    <div class="form-check mt-1">
+        <input class="form-check-input" type="checkbox" value="1" id="reset_api_token" name="reset_api_token">
+        <label class="form-check-label" for="reset_api_token">
+            重置 Api Token(重置后，需要到对应的模块中更新，否则会导致模块无法正常工作)
+        </label>
+    </div>
+
+    <button type="submit" class="btn btn-primary mt-3">提交</button>
+</form>
 
 
-    <hr/>
-    <form method="POST" action="{{ route('admin.modules.destroy', $module)}}"
-          onsubmit="return confirm('删除后，业务将无法正常进行。')">
-        @csrf
-        @method('DELETE')
-        <button type="submit" class="btn btn-danger">删除</button>
-    </form>
+<hr />
+<form method="POST" action="{{ route('admin.modules.destroy', $module)}}" onsubmit="return confirm('删除后，业务将无法正常进行。')">
+    @csrf
+    @method('DELETE')
+    <button type="submit" class="btn btn-danger">删除</button>
+</form>
 
 @endsection
diff --git a/resources/views/admin/modules/show.blade.php b/resources/views/admin/modules/show.blade.php
index 8c31055..bcfa88f 100644
--- a/resources/views/admin/modules/show.blade.php
+++ b/resources/views/admin/modules/show.blade.php
@@ -3,17 +3,18 @@
 @section('title', '模块:' . $module->name)
 
 @section('content')
-    <h3>{{ $module->name }}</h3>
-    <a class="mt-3" href="{{ route('admin.modules.edit', $module) }}">编辑</a>
-    <h4 class="mt-2">收益</h4>
-    <div>
-        <x-module-earning :module="$module"/>
-    </div>
+<h3>{{ $module->name }}</h3>
+<p>状态: {{ $module->status }}</p>
+<a class="mt-3" href="{{ route('admin.modules.edit', $module) }}">编辑</a>
+<h4 class="mt-2">收益</h4>
+<div>
+    <x-module-earning :module="$module" />
+</div>
 
-    <h4 class="mt-2">主机</h4>
-    <div class="overflow-auto">
-        <table class="table table-hover">
-            <thead>
+<h4 class="mt-2">主机</h4>
+<div class="overflow-auto">
+    <table class="table table-hover">
+        <thead>
             <th>ID</th>
             <th>名称</th>
             <th>用户</th>
@@ -21,41 +22,41 @@
             <th>创建时间</th>
             <th>更新时间</th>
             <th>操作</th>
-            </thead>
+        </thead>
 
-            <tbody>
+        <tbody>
             @foreach ($hosts as $host)
-                <tr>
-                    <td>
-                        <a href="{{ route('admin.hosts.edit', $host) }}">
-                            {{ $host->id }}
-                        </a>
-                    </td>
-                    <td>
-                        {{ $host->name }}
-                    </td>
-                    <td>
-                        <a href="{{ route('admin.users.edit', $host->user_id) }}"> {{ $host->user->name }}</a>
-                    </td>
-                    <td>
-                        {{ $host->price }} 元
-                    </td>
-                    <td>
-                        {{ $host->created_at }}
-                    </td>
-                    <td>
-                        {{ $host->updated_at }}
-                    </td>
-                    <td>
-                        <a href="{{ route('admin.hosts.edit', $host) }}" class="btn btn-primary btn-sm">编辑</a>
-                    </td>
-                </tr>
+            <tr>
+                <td>
+                    <a href="{{ route('admin.hosts.edit', $host) }}">
+                        {{ $host->id }}
+                    </a>
+                </td>
+                <td>
+                    {{ $host->name }}
+                </td>
+                <td>
+                    <a href="{{ route('admin.users.edit', $host->user_id) }}"> {{ $host->user->name }}</a>
+                </td>
+                <td>
+                    {{ $host->price }} 元
+                </td>
+                <td>
+                    {{ $host->created_at }}
+                </td>
+                <td>
+                    {{ $host->updated_at }}
+                </td>
+                <td>
+                    <a href="{{ route('admin.hosts.edit', $host) }}" class="btn btn-primary btn-sm">编辑</a>
+                </td>
+            </tr>
 
             @endforeach
-            </tbody>
-        </table>
-    </div>
+        </tbody>
+    </table>
+</div>
 
-    {{-- 分页 --}}
-    {{ $hosts->links() }}
-@endsection
+{{-- 分页 --}}
+{{ $hosts->links() }}
+@endsection
\ No newline at end of file