C#mongodb驱动程序写问题 [英] c# mongodb driver write concern

问题描述

我的Web服务写入mongodb，我注意到在负载下，写入失败很多. 阅读本文档我看到默认情况下，设置被设置为"Acknowledge"，并阅读

My web service writes to a mongodb and I notice that under load, the writes are failing a lot. Reading this documentation I see that by default the settings are set to "Acknowledge" and reading this post It seems I need to set it to a higher setting (safe mode - which seems to be deprecated). So my question is , how should I initialize my mongodb such that my web service will "always" write to the db (or throw an error trying) and not fail (assuming it can write :) )

据我了解，我需要设置写关注"，但不清楚如何将其设置为确保成功写入数据库"

From what I understand I need to set the "write concern" but not clear on how to set it to "Assure success in writing to the db"

我现在用来检索Db的代码是:

The code I am using now to retrieve the Db is :

MongoClient client = new MongoClient(connection_string);
var server = client.GetServer();
Database = _db = server.GetDatabase(dbname);

推荐答案

为此，您的连接字符串必须具有选项w = 1，这是更高版本的驱动程序中的默认选项.连接字符串中的内容如下所示:

Your connection string needs to have the option w=1 for this, which is the default in later versions of the driver. This looks like the following in the connection string:

mongodb://localhost/?w=1

但这是默认设置.

您写道写入失败很多"-您如何看待?是由于文档不在数据库中，还是由于出错?让我知道，我将更新答案.

You write that "writes are failing a lot" - how do you see that? By documents not being in the database, or by getting errors? Let me know and I'll update the answer.

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