A task was canceled

[vitthalshinde82]

Hello Team,

I have hybrid .Net Core 8 web application with Angular 13. I use Duende Identity Server 7.2.8.
We have used OpenID Protocall for user Authentication and Reference token for Authorization. Also, we have separate authentication service.
In Angular, we use angular-oauth2-oidc-jwks package to navigate user login page (Authentication Service) and back to web application.

In all these sequences of events we are getting following A task was canceled. exception while login/logout. In normal application events it is working fine.

We have just migrated our web application from .Net core 6 ( Identity Server v4) to .Net core 8 with Duende Identity Server 7.2.8.

In earlier version of Identity Server v4 we were not getting these errors. Please help me.

System.Threading.Tasks.TaskCanceledException: A task was canceled.
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenAsync(CancellationToken cancellationToken, Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteReaderAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable1.AsyncEnumerator.InitializeReaderAsync(AsyncEnumerator enumerator, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync[TState,TResult](TState state, Func4 operation, Func4 verifySucceeded, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable1.AsyncEnumerator.MoveNextAsync()
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToArrayAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) at Duende.IdentityServer.EntityFramework.Stores.ResourceStore.FindApiResourcesByNameAsync(IEnumerable1 apiResourceNames) in //identity-server/src/EntityFramework.Storage/Stores/ResourceStore.cs:line 79
at Duende.IdentityServer.Validation.ApiSecretValidator.ValidateAsync(HttpContext context) in //identity-server/src/IdentityServer/Validation/Default/ApiSecretValidator.cs:line 69
at Duende.IdentityServer.Endpoints.IntrospectionEndpoint.ProcessIntrospectionRequestAsync(HttpContext context) in //identity-server/src/IdentityServer/Endpoints/IntrospectionEndpoint.cs:line 104
at Duende.IdentityServer.Endpoints.IntrospectionEndpoint.ProcessAsync(HttpContext context) in //identity-server/src/IdentityServer/Endpoints/IntrospectionEndpoint.cs:line 85
at Duende.IdentityServer.Hosting.IdentityServerMiddleware.Invoke(HttpContext context, IdentityServerOptions options, IEndpointRouter router, IUserSession userSession, IEventService events, IIssuerNameService issuerNameService, ISessionCoordinationService sessionCoordinationService) in //identity-server/src/IdentityServer/Hosting/IdentityServerMiddleware.cs:line 109
at Duende.IdentityServer.Hosting.MutualTlsEndpointMiddleware.Invoke(HttpContext context, IAuthenticationSchemeProvider schemes) in //identity-server/src/IdentityServer/Hosting/MutualTlsEndpointMiddleware.cs:line 120
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Duende.IdentityServer.Hosting.DynamicProviders.DynamicSchemeAuthenticationMiddleware.Invoke(HttpContext context) in //identity-server/src/IdentityServer/Hosting/DynamicProviders/DynamicSchemes/DynamicSchemeAuthenticationMiddleware.cs:line 51
at Duende.IdentityServer.Hosting.BaseUrlMiddleware.Invoke(HttpContext context) in //identity-server/src/IdentityServer/Hosting/BaseUrlMiddleware.cs:line 27
at Worksoft.Authentication.Connect.Middleware.LoggingMiddleware.Invoke(HttpContext context) in E:\server\Worksoft\Authentication\develop\Worksoft.Authentication\Web\Worksoft.Authentication.Connect\Middleware\LoggingMiddleware.cs:line 23

AND

System.Threading.Tasks.TaskCanceledException: A task was canceled.
at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable1.AsyncEnumerator.MoveNextAsync() at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToArrayAsync[TSource](IQueryable1 source, CancellationToken cancellationToken)
at Duende.IdentityServer.EntityFramework.Stores.ResourceStore.FindApiResourcesByScopeNameAsync(IEnumerable1 scopeNames) in /_/identity-server/src/EntityFramework.Storage/Stores/ResourceStore.cs:line 119 at Duende.IdentityServer.Stores.IResourceStoreExtensions.FindResourcesByScopeAsync(IResourceStore store, IEnumerable1 scopeNames) in //identity-server/src/IdentityServer/Extensions/IResourceStoreExtensions.cs:line 27
at Duende.IdentityServer.Stores.IResourceStoreExtensions.FindEnabledResourcesByScopeAsync(IResourceStore store, IEnumerable1 scopeNames) in /_/identity-server/src/IdentityServer/Extensions/IResourceStoreExtensions.cs:line 98 at Duende.IdentityServer.Validation.DefaultResourceValidator.ValidateRequestedResourcesAsync(ResourceValidationRequest request) in /_/identity-server/src/IdentityServer/Validation/Default/DefaultResourceValidator.cs:line 61 at Duende.IdentityServer.Validation.TokenRequestValidator.ValidateAuthorizationCodeRequestAsync(NameValueCollection parameters) in /_/identity-server/src/IdentityServer/Validation/Default/TokenRequestValidator.cs:line 455 at Duende.IdentityServer.Validation.TokenRequestValidator.RunValidationAsync(Func2 validationFunc, NameValueCollection parameters) in //identity-server/src/IdentityServer/Validation/Default/TokenRequestValidator.cs:line 285
at Duende.IdentityServer.Validation.TokenRequestValidator.ValidateRequestAsync(TokenRequestValidationContext context) in //identity-server/src/IdentityServer/Validation/Default/TokenRequestValidator.cs:line 201
at Duende.IdentityServer.Endpoints.TokenEndpoint.ProcessTokenRequestAsync(HttpContext context) in //identity-server/src/IdentityServer/Endpoints/TokenEndpoint.cs:line 120
at Duende.IdentityServer.Endpoints.TokenEndpoint.ProcessAsync(HttpContext context) in //identity-server/src/IdentityServer/Endpoints/TokenEndpoint.cs:line 81
at Duende.IdentityServer.Hosting.IdentityServerMiddleware.Invoke(HttpContext context, IdentityServerOptions options, IEndpointRouter router, IUserSession userSession, IEventService events, IIssuerNameService issuerNameService, ISessionCoordinationService sessionCoordinationService) in //identity-server/src/IdentityServer/Hosting/IdentityServerMiddleware.cs:line 109
at Duende.IdentityServer.Hosting.MutualTlsEndpointMiddleware.Invoke(HttpContext context, IAuthenticationSchemeProvider schemes) in //identity-server/src/IdentityServer/Hosting/MutualTlsEndpointMiddleware.cs:line 120
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Duende.IdentityServer.Hosting.DynamicProviders.DynamicSchemeAuthenticationMiddleware.Invoke(HttpContext context) in //identity-server/src/IdentityServer/Hosting/DynamicProviders/DynamicSchemes/DynamicSchemeAuthenticationMiddleware.cs:line 51
at Microsoft.AspNetCore.Cors.Infrastructure.CorsMiddleware.g__InvokeCoreAwaited|15_0(HttpContext context, Task`1 policyTask)
at Duende.IdentityServer.Hosting.BaseUrlMiddleware.Invoke(HttpContext context) in //identity-server/src/IdentityServer/Hosting/BaseUrlMiddleware.cs:line 27
at Worksoft.Authentication.Connect.Middleware.LoggingMiddleware.Invoke(HttpContext context) in E:\server\Worksoft\Authentication\develop\Worksoft.Authentication\Web\Worksoft.Authentication.Connect\Middleware\LoggingMiddleware.cs:line 23_

[wcabus]

These messages are most likely being logged because of HTTP requests that are being cancelled. If a SQL query was already started when that happens, the query will also be canceled early to prevent wasting server resources.

You can optionally filter out these messages if you're using Serilog.

[vitthalshinde82]

Thank you wcabus! Added mentioned filter and it's not showing now.