我有一个Web应用程序，每分钟有数千个请求。以下是我用于mongoDB连接的python代码:工具.py:globalconnection=NonedefgetCollection(name,safe=False,readpref=ReadPreference.PRIMARY):globalglobalconnectionwhileglobalconnectionisNone:try:ifnotglobalconnectionisNone:globalconnection.close()globalconnection=Connection('mongodb://host:port',