c# – .NET和MySQL错误 – 对SSPI的调用失败……“收到的消息是

我有一个.NET 4.5.2 Web服务层(使用ServiceStack和Dapper),自从我们部署服务以来,它几乎没有收到这两个错误.

第一个错误：

2017-09-29 18:13:26.637 +00:00 [Error] Class: "TokenRepository" | Method: "GetToken"
System.Security.Authentication.AuthenticationException: A call to SSPI failed,see inner exception. ---> System.ComponentModel.Win32Exception: The message received was unexpected or badly formatted
   --- End of inner exception stack trace ---
   at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message,AsyncProtocolRequest asyncRequest,Exception exception)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer,Int32 count,AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer,AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer,AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst,Byte[] buffer,AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
   at MySql.Data.MySqlClient.NativeDriver.StartSSL()
   at MySql.Data.MySqlClient.NativeDriver.Open()
   at MySql.Data.MySqlClient.Driver.Open()
   at MySql.Data.MySqlClient.Driver.Create(MySqlConnectionStringBuilder settings)
   at MySql.Data.MySqlClient.MySqlPool.CreateNewPooledConnection()
   at MySql.Data.MySqlClient.MySqlPool.GetPooledConnection()
   at MySql.Data.MySqlClient.MySqlPool.TryToGetDriver()
   at MySql.Data.MySqlClient.MySqlPool.GetConnection()
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at Dapper.SqlMapper.<QueryImpl>d__125`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Dapper.SqlMapper.Query[T](IDbConnection cnn,String sql,Object param,IDbTransaction transaction,Boolean buffered,Nullable`1 commandTimeout,Nullable`1 commandType)
   at myApp.Services.Data.Impl.TokenRepository.GetToken(String token) in E:JenkinsworkspacemyAppsrcServices.DataImplTokenRepository.cs:line 191

第二个……

2017-09-19 15:40:51.040 +00:00 [Error] Class: "myApp.Services.Data.Impl.SystemRepository" | Method: "GetAttributes"
System.Security.Authentication.AuthenticationException: A call to SSPI failed,see inner exception. ---> System.ComponentModel.Win32Exception: The buffers supplied to a function was too small
   --- End of inner exception stack trace ---
   at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message,Nullable`1 commandType)
   at myApp.Services.Data.Impl.SystemRepository.GetAttributes() in E:JenkinsworkspacemyAppsrcServices.DataImplSystemRepository.cs:line 38

我的堆栈上有一点背景：

> .NET 4.5.2
> Dapper 1.50.2.0
> ServiceStack 4.5.4
> MySQL 5.6(使用Amazon Aurora)

我们在任何其他环境中都没有收到此错误,我们没有运行Aurora,只是在Amazon RDS上运行MySQL 5.7.17.

正如我所提到的,这些错误是偶发的,并不总是发生在相同的方法/服务上,但它们总是在使用Dapper从服务层到MySQL数据库执行SQL命令时发生.

有没有进一步调试这个或者是否有任何与MySql / Aurora / Dapper相关的已知问题？经过研究,我找不到任何东西.