[SqlException (0x80131904): 在向服务器发送请求时发生传输级错误。 (provider: TCP 提供程序, error: 0 - 远程主机强迫关闭了一个现有的连接。)]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +1950522
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4856715
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
System.Data.SqlClient.TdsParserStateObject.WriteSni() +4864726
System.Data.SqlClient.TdsParserStateObject.WritePacket(Byte flushMode) +254
System.Data.SqlClient.TdsParserStateObject.ExecuteFlush() +62
System.Data.SqlClient.TdsParser.TdsExecuteRPC(_SqlRPC[] rpcArray, Int32 timeout, Boolean inSchema, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean isCommandProc) +4296
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +954
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteScalar() +139
Discuz.Data.DbHelper.ExecuteScalar(DbConnection connection, CommandType commandType, String commandText, DbParameter[] commandParameters) in E:\论坛\nng论坛\nng【李志平修改版】20191219\Discuz.Data\DbHelper.cs:1455
Discuz.Data.DbHelper.ExecuteScalar(CommandType commandType, String commandText, DbParameter[] commandParameters) in E:\论坛\nng论坛\nng【李志平修改版】20191219\Discuz.Data\DbHelper.cs:1406
Discuz.Data.SqlServer.DataProvider.AddOnlineUser(OnlineUserInfo onlineUserInfo, Int32 timeOut, Int32 deletingFrequency) in E:\论坛\nng论坛\nng【李志平修改版】20180123\Discuz.Data.SqlServer\UserManage.cs:2847
Discuz.Data.OnlineUsers.CreateOnlineUserInfo(OnlineUserInfo onlineuserinfo, Int32 timeout) in E:\论坛\nng论坛\nng【李志平修改版】20191219\Discuz.Data\DataProvider\OnlineUsers.cs:298
Discuz.Forum.OnlineUsers.CreateGuestUser(Int32 timeout) +405
Discuz.Forum.OnlineUsers.UpdateInfo(String passwordkey, Int32 timeout, Int32 uid, String passwd) +1266
Discuz.Forum.OnlineUsers.UpdateInfo(String passwordkey, Int32 timeout) +51
Discuz.Forum.PageBase..ctor() +2466
Discuz.Web.UI.TopicPage..ctor() +1041
Discuz.Web.showtopic..ctor() +607
ASP.aspx_1_showtopic_aspx..ctor() in c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\da1abf13\d7866eae\App_Web_showtopic.aspx.e804085e.xcaibpzu.0.cs:0
__ASP.FastObjectFactory_app_web_showtopic_aspx_e804085e_xcaibpzu.Create_ASP_aspx_1_showtopic_aspx() in c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\da1abf13\d7866eae\App_Web_showtopic.aspx.e804085e.xcaibpzu.1.cs:0
System.Web.Compilation.BuildResultCompiledType.CreateInstance() +32
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +119
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +33
System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context, String requestType, String virtualPath, String path) +37
System.Web.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +307
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
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