在Azure上基于Linux的docker容器上从.net core 2.2连接Atlas MongoDb的间歇性TimeoutException

我有一个基于.Net Core 2.2的应用程序，它连接到Atlas中的MondoDb cluster V3.6。该应用程序作为Linux Docker容器托管在Azure中。该应用程序正在使用MongoDB.Net驱动程序2.7.3。应用程序定期（几分钟一次）接收以下超时异常：

System.TimeoutException at MongoDB.Driver.Core.Clusters.Cluster.ThrowTimeoutException

及

mongo客户端实例是根据MongoDb文档配置的，即

var url = MongoUrl.Create("mongodb+srv://user:password@cluster.gcp.mongodb.net/?authSource=admin&retryWrites=true&ssl=true");
        var clientSettings = MongoClientSettings.FromUrl(url);
        clientSettings.SslSettings = new SslSettings() { EnabledSslProtocols = SslProtocols.Tls12 };

        void SocketConfigurator(Socket s) => s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);

        clientSettings.ClusterConfigurator = builder =>
            builder.ConfigureTcp(tcp => tcp.With(socketConfigurator: (Action<Socket>)SocketConfigurator));

        return new MongoClient(clientSettings);

var url=MongoUrl.Create（“mongodb+srv://user:password@cluster.gcp.mongodb.net/？authSource=admin&retryWrites=true&ssl=true“；
var clientSettings=MongoClientSettings.FromUrl（url）；
clientSettings.SslSettings=new SslSettings（）{EnabledSslProtocols=SslProtocols.Tls12}；
void SocketConfigurator（sockets）=>s.SetSocketOption（SocketOptionLevel.Socket，SocketOptionName.KeepAlive，true）；
clientSettings.ClusterConfigurator=builder=>
builder.ConfigureTcp（tcp=>tcp.With（socketConfigurator:（Action）socketConfigurator））；
返回新的MongoClient（客户端设置）；

---

我检查了一些SO问题，包括和，但建议似乎已经过时（在当前版本的驱动程序中报告为已修复），或者没有永久的积极影响（在连接字符串中设置超时，即connectTimeoutMS=90000&SockettTimeoutms=90000&maxIdleTimeMS=90000）。第二个（设置tcp_keepalive_time）似乎不适用于Azure中的docker容器。请帮助。

您是否尝试过这样设置：

var client = new MongoClient(new MongoClientSettings
{
       Server = new MongoServerAddress("xxxx"),
       ClusterConfigurator = builder =>
       {
             builder.ConfigureCluster(settings => settings.With(serverSelectionTimeout: TimeSpan.FromSeconds(10)));
       }
});

---

嗯，原因是网络问题。一旦我们将Atlas db从Google主机移动到Azure主机，套接字打开操作的超时就消失了。仍然不确定是哪一方导致了问题。您是否设法解决了此问题？我经常收到这个

var client = new MongoClient(new MongoClientSettings
{
       Server = new MongoServerAddress("xxxx"),
       ClusterConfigurator = builder =>
       {
             builder.ConfigureCluster(settings => settings.With(serverSelectionTimeout: TimeSpan.FromSeconds(10)));
       }
});