From 0a0a9cda1af4a7093c0ccc9ba9d0486e6f37938d Mon Sep 17 00:00:00 2001
From: qzbysh <qzbysh@yeah.net>
Date: Wed, 18 May 2016 21:15:58 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DMongoDB=E8=BF=9E=E6=8E=A5bug?=
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修复在MongoDB服务端异常情况下，启动vnpy依然显示MongoDB连接成功bug。
修改‘serverSelectionTimeoutMS’为3s(默认30s), 利用server_info()函数测试服务器是否正常。
---
 vn.trader/vtEngine.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/vn.trader/vtEngine.py b/vn.trader/vtEngine.py
index 45b7e709..70d24eda 100644
--- a/vn.trader/vtEngine.py
+++ b/vn.trader/vtEngine.py
@@ -208,7 +208,8 @@ class MainEngine(object):
             host, port = loadMongoSetting()
                 
             try:
-                self.dbClient = MongoClient(host, port)
+                self.dbClient = MongoClient(host, port, serverSelectionTimeoutMS=3000)
+                self.dbClient.server_info()
                 self.writeLog(u'MongoDB连接成功')
             except ConnectionFailure:
                 self.writeLog(u'MongoDB连接失败')
@@ -349,4 +350,4 @@ class DataEngine(object):
         self.eventEngine.register(EVENT_ORDER, self.updateOrder)
         
     
-    
\ No newline at end of file
+