从C#2.1驱动程序正确关闭MongoDB数据库连接? [英] Properly shutting down MongoDB database connection from C# 2.1 driver?
问题描述
我刚开始将MongoDB集成到我的应用程序中，但遇到了一些问题.在我的应用程序中，我正在使用最新的2.1版本的MongoDB C#驱动程序，并且仅使用MongoDB进行应用程序日志记录.
I am just getting started with integrating MongoDB into my application and I have ran into a few questions. In my application I am using the newest 2.1 version of the MongoDB C# driver and only using MongoDB for application logging.
当前，在显示主应用程序Form之前，我首先检查mongod.exe是否正在运行，如果没有运行，请启动它.然后，当显示我的主Form时，它将打开与数据库的连接，以供使用，如下所示.
Currently before showing my main application Form I first check to see if mongod.exe is running and if not I start it. Then when my main Form is shown it opens a connection to the database for use seen below.
public void Open()
{
Client = new MongoClient("mongodb://localhost:27017");
Database = Client.GetDatabase(DBName);
Collection = Database.GetCollection<BsonDocument>(ColName);
}
我的问题是，当我的应用程序关闭时，如何正确关闭此连接?
My question is how I should properly shutdown this connection when my application is closing?
在使mongod.exe处于运行状态还是每次应用程序关闭时都退出它时，还有一些我应该考虑的因素吗?
Also are there in considerations I should take into account in leaving mongod.exe running versus exiting it each time the application closes?
我进行了几次搜索，试图找出是否有适当的方法来关闭连接，但没有发现非常具体的方法.有一篇旧的SO帖子(我现在似乎找不到)提到了.Dispose方法，尽管我似乎无法在最新的驱动程序中或从我的IDE的自动完成中找到它.
I have searched a few times trying to figure out if there is a proper way to shutdown the connection but have found nothing very specific. There is an old SO post (that I can't seem to find now) mentioning a .Dispose method, though I cannot seem to find it in the newest driver nor from my IDE's auto complete.
推荐答案
从当前版本的MongoDB(对于MongoDB.Driver为v2.0.1.27)开始，无需关闭或处置连接.客户端会自动处理它.
As of today's version of MongoDB (v2.0.1.27 for MongoDB.Driver), there's no need to close or dispose of connections. The client handles it automatically.
来自文档:
MongoClient对象将成为根对象.它是线程安全的，是处理连接到服务器，监视服务器以及对这些服务器执行操作所需的全部. [...] 建议将MongoClient实例存储为全局变量，既可以作为静态变量，也可以存储在具有单例生命周期的IoC容器中.但是，使用相同设置创建的多个MongoClient实例将使用下面的相同连接池.
A MongoClient object will be the root object. It is thread-safe and is all that is needed to handle connecting to servers, monitoring servers, and performing operations against those servers. [...] It is recommended to store a MongoClient instance in a global place, either as a static variable or in an IoC container with a singleton lifetime. However, multiple MongoClient instances created with the same settings will utilize the same connection pools underneath.
There's a partial/old list of thread-safe MongoDB classes in this SO answer.
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