[Win32Exception (0x80004005): 等待的操作过时。]
[SqlException (0x80131904): 连接超时时间已到。在尝试使用预登录握手确认时超过了此超时时间。这可能是因为预登录握手失败或服务器未能及时响应。 尝试连接到此服务器时花费的持续时间是 - [Pre-Login] initialization=22196；handshake=23053；]
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +345
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +156
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +258
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +312
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +202
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +413
System.Data.SqlClient.SqlConnection.Open() +128
Ctmon.Data.DbHelper.ExecuteScalar(CommandType commandType, String commandText, DbParameter[] commandParameters) +303
Ctmon.Data.SqlServer.DataProvider.InsertRobotsInfo(RobotsInfo entity) +1449
Ctmon.Site.SiteBLL.InsertRobotsInfo(RobotsInfo entity) +82
Ctmon.Site.SiteUtils.SpiderBot() +108
Ctmon.Site.PageBase..ctor() +871
Ctmon.Site.WebPage..ctor() +512
Ctmon.Web.cms_detail..ctor() +66
ASP.cms_detail_aspx..ctor() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\32177f11\b325126b\App_Web_bdco0mn1.21.cs:0
__ASP.FastObjectFactory_app_web_bdco0mn1.Create_ASP_cms_detail_aspx() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\32177f11\b325126b\App_Web_bdco0mn1.24.cs:0
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp) +132
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +44
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +219
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +207
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128
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