update:fix

src/Mon/MonUtil.php

@@ -85,15 +85,26 @@ class MonUtil{
     }
 
 
-    public static function mongoMon($mysql_host,$operator,$request_time = -799)
+    public static function mongoMon($mongo_host,$operator,$request_time = -799)
     {
-
-        if (empty($mysql_host) || empty($operator)) {
+        return ;
+        if ( empty($operator) || !is_array($mongo_host)) {
             return ;
         }
+        $host = '';
+        foreach ($mongo_host as $items)
+        {
+            $host .= $items['host'].'_';
+        }
+
+        if (empty($host)) {
+            $host = 'unknow';
+        }
+
+        $host = trim($host,'_');
 
         //记录请求量
-        self::counting('mongodb.'.$mysql_host , (string)$operator,0);
+        self::counting('mongodb.'.$host , (string)$operator,0);
 
         //耗时打点
         if(!empty($request_time) && is_numeric($request_time) && $request_time != -799){