From d9b91ccb690a6da2605425ec045e657c2c16b26c Mon Sep 17 00:00:00 2001
From: chenxy123 <xiaoyou.chen@hotmail.com>
Date: Thu, 19 May 2016 23:33:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9MongoDB=E8=BF=9E=E6=8E=A5?=
 =?UTF-8?q?=E8=B6=85=E6=97=B6=E7=9A=84=E6=97=B6=E9=97=B4?=
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---
 vn.trader/vtEngine.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/vn.trader/vtEngine.py b/vn.trader/vtEngine.py
index 70d24eda..4f9fe850 100644
--- a/vn.trader/vtEngine.py
+++ b/vn.trader/vtEngine.py
@@ -208,8 +208,12 @@ class MainEngine(object):
             host, port = loadMongoSetting()
                 
             try:
-                self.dbClient = MongoClient(host, port, serverSelectionTimeoutMS=3000)
+                # 设置MongoDB操作的超时时间为0.5秒
+                self.dbClient = MongoClient(host, port, serverSelectionTimeoutMS=500)
+                
+                # 调用server_info查询服务器状态，防止服务器异常并未连接成功
                 self.dbClient.server_info()
+
                 self.writeLog(u'MongoDB连接成功')
             except ConnectionFailure:
                 self.writeLog(u'MongoDB连接失败')