python多线程数据库连接过多_如何解决多线程下Pymongo连接过多的问题？

最近调整原来的py爬虫时发现一个问题

在多线程下pymongo会报一个危险

/usr/lib64/python2.6/site-packages/pymongo/topology.py:75:

UserWarning: MongoClient opened before fork. Create MongoClient with connect&＃61;False,

or create client after forking. See PyMongo&＃39;s documentation for details:

http://api.mongodb.org/python/current/faq.html#using-pymongo-with-multiprocessing>

"MongoClient opened before fork. Create MongoClient "

大意是多进程下要加上connect&＃61;False参数防止死锁&＃xff1f;

然后加上这个参数程序依旧报这个危险&＃xff0c;所以问下多进程下 pymongo的要在哪里初始化&＃xff1f;

目前是这样

class mongo():

def __init__(self):

try:

client &＃61; MongoClient(host&＃61;"127.0.0.1", port&＃61;27017, connect&＃61;False)

db &＃61; client.db

print "mogodb successful connection~^_^"

except Exception, e:

print "mogodb Error", e

def in():

......

拜谢