Question

我有一个MongoDB的单个主要实例要连接。我正在使用C＃驱动程序（最新版本）来连接和使用MongoDB。

我的客户端应用程序是多线程的，其中进程将以不同的时间间隔定期运行以生成报告。当多个线程正在运行时，我在驱动程序上调用了各种函数（例如server.DatabaseExists（...）），我一直遇到异常。

“请求的名称有效，但未找到所请求类型的数据”

 at System.Net.Dns.GetAddrInfo(String name)
   at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
   at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
   at MongoDB.Driver.MongoServerAddress.ToIPEndPoint(AddressFamily addressFamily) in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoServerAddress.cs:line 195
   at MongoDB.Driver.MongoServerInstance.GetIPEndPoint() in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 339
   at MongoDB.Driver.Internal.MongoConnection.Open() in C:\work\rstam\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 368
   at MongoDB.Driver.Internal.MongoConnection.GetNetworkStream() in C:\work\rstam\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 574
   at MongoDB.Driver.Internal.MongoConnection.SendMessage(MongoRequestMessage message, SafeMode safeMode, String databaseName) in C:\work\rstam\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 555
   at MongoDB.Driver.MongoCursorEnumerator`1.GetReply(MongoConnection connection, MongoRequestMessage message) in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 295
   at MongoDB.Driver.MongoCursorEnumerator`1.GetFirst() in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 253
   at MongoDB.Driver.MongoCursorEnumerator`1.MoveNext() in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 141
   at MongoDB.Driver.MongoDatabase.GetCollectionNames() in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoDatabase.cs:line 645
   at MongoDB.Driver.MongoDatabase.CollectionExists(String collectionName) in C:\work\rstam\mongo-csharp-driver\Driver\Core\MongoDatabase.cs:line 297

运行一个线程不会导致此问题。我理解MongoDB是线程安全的，所以我无法理解原因和补救措施。

Answer 1

唯一的解决方案＆＃34;发现是要回收托管我的网站\服务的应用程序池，调用mongo客户端。

MongoDB和多个C＃客户端线程

1 个答案: