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<div style='display: inline'> <h1 style='font-family: Malgun Gothic, Consolas; font-size: 20pt; color: #006699; text-align: center; font-weight: bold'>.NET Core 웹 응용 프로그램 - The process was terminated due to an unhandled exception.</h1> <p> 재미있는 현상이라서 기록 차원에서 남깁니다. 환경은, .NET Core 2.2에 <a target='tab' href='https://www.sysnet.pe.kr/2/0/12032'>AspNetCoreModuleV2</a> 모듈을 사용해 IIS에 Inproc으로 활성화한 경우입니다.<br /> <br /> 그런데, 분명히 <a target='tab' href='https://www.sysnet.pe.kr/2/0/10863'>2차 스레드에서 예외가 발생</a>하지 않았는데도, 즉 일반적인 웹 요청을 처리하는 중이었는데도 프로세스가 비정상 종료한 상황이 나왔습니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > Log Name: Application Source: .NET Runtime Date: 2020-07-15 오전 6:53:15 Event ID: 1026 Task Category: None Level: Error Keywords: Classic User: N/A Computer: testpc Description: Application: w3wp.exe CoreCLR Version: 4.6.28207.3 Description: <span style='color: blue; font-weight: bold'>The process was terminated due to an unhandled exception.</span> Exception Info: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) ---> System.ComponentModel.Win32Exception: The network path was not found --- End of inner exception stack trace --- at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling, String accessToken) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.Open() at CoreCoreWin2.Pages.IndexModel.DoSqlQuery() in C:\temp\TestApp\Pages\Index.cshtml.cs:line 204 <span style='color: blue; font-weight: bold'>at CoreCoreWin2.Pages.IndexModel.OnGet() in C:\temp\TestApp\Pages\Index.cshtml.cs:line 53</span> at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location where exception was thrown --- at System.Threading.ThreadPoolWorkQueue.Dispatch() </pre> <br /> 오전 6시 정도인 걸로 봐서 IIS의 AppPool 재생 시간인 듯한데, 5번 연이어 저 지점에서 비정상 종료하는 바람에 "<a target='tab' href='Rapid-Fail Protection'>Rapid-Fail Protection</a>"과 맞물려 해당 AppPool의 서비스가 완전히 내려가 버렸습니다.<br /> <br /> <hr style='width: 50%' /><br /> <br /> 재미있는 것은, 그때만 저렇게 비정상 종료를 하고 다시 살려서 서비스를 했더니 이제는 그냥 예외만 발생하고,<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > Log Name: Application Source: .NET Runtime Date: 2020-07-15 오전 9:01:08 Event ID: 1000 Task Category: None Level: Error Keywords: Classic User: N/A Computer: testpc Description: Category: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware EventId: 1 RequestId: 8001c017-0002-bc00-b63f-84710c7967bb RequestPath: / SpanId: |d93bf9a3-4971598b77ec3b30. TraceId: d93bf9a3-4971598b77ec3b30 ParentId: An unhandled exception has occurred while executing the request. Exception: System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) ---> System.ComponentModel.Win32Exception (53): The network path was not found. at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.Open() at Core3Web.Pages.IndexModel.DoSqlQuery() in C:\temp\TestApp\Pages\Index.cshtml.cs:line 101 at Core3Web.Pages.IndexModel.OnGet() in C:\temp\TestApp\Pages\Index.cshtml.cs:line 37 at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.ExecutorFactory.VoidHandlerMethod.Execute(Object receiver, Object[] arguments) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeHandlerMethodAsync() at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeNextPageFilterAsync() at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Rethrow(PageHandlerExecutedContext context) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeInnerFilterAsync() at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker) at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) ClientConnectionId:00000000-0000-0000-0000-000000000000 Error Number:53,State:0,Class:20 </pre> <br /> w3wp.exe 자체는 종료하지 않습니다. (사실, 이게 정상입니다.) 재현이 안 되니... 더 이상 어떻게 해볼 수가 없군요. ^^<br /> </p><br /> <br /><hr /><span style='color: Maroon'>[이 글에 대해서 여러분들과 의견을 공유하고 싶습니다. 틀리거나 미흡한 부분 또는 의문 사항이 있으시면 언제든 댓글 남겨주십시오.]</span> </div>
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