TaskCanceledException on SignalR Hub #2848

6 Answer(s)

• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  Can you use await to call the async method instead of .Result?

  Save Cancel
• 

  0

  dev1.abp.advantiss created 3 years ago

  hi

  Can you use await to call the async method instead of .Result?

  I try, but the same A task was canceled. Stack trace: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.Core.ConnectionPools.ExclusiveConnectionPool.<AcquireConnectionAsync>d__38.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.Core.Servers.Server.<GetChannelAsync>d__34.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.Core.Operations.RetryableReadContext.<InitializeAsync>d__20.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.Core.Operations.RetryableReadContext.<CreateAsync>d__1.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.Core.Operations.FindOperation``1.<ExecuteAsync>d__120.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.OperationExecutor.<ExecuteReadOperationAsync>d__31.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.MongoCollectionImpl1.<ExecuteReadOperationAsync>d__981.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.MongoCollectionImpl1.<UsingImplicitSessionAsync>d__1061.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MongoDB.Driver.IAsyncCursorSourceExtensions.<FirstOrDefaultAsync>d__51.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Volo.Abp.Domain.Repositories.MongoDB.MongoDbRepository3.<FindAsync>d__6.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Volo.Abp.Domain.Repositories.MongoDB.MongoDbRepository3.<GetAsync>d__5.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Project.Sessions.MongoSessionRepository.<GetAsync>d__6.MoveNext() in D:\Projects\Project\aspnet-core\src\Project.MongoDB\Sessions\MongoSessionRepository.cs:line 95 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Castle.DynamicProxy.AsyncInterceptorBase.<ProceedAsynchronous>d__141.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Volo.Abp.Castle.DynamicProxy.CastleAbpMethodInvocationAdapterWithReturnValue``1.<ProceedAsync>d__7.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Volo.Abp.Uow.UnitOfWorkInterceptor.<InterceptAsync>d__2.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter``1.<InterceptAsync>d__31.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Project.SignalR.ProjectSessionHub.<OnDisconnectedAsync>d__8.MoveNext() in D:\Projects\Project\aspnet-core\src\Project.Application\SignalR\ProjectSessionHub.cs:line 106

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  Can you try to add CancellationToken.None as the last parameter for the GetAsync method

  

  Save Cancel
• 

  0

  dev1.abp.advantiss created 3 years ago

  Can you try to add CancellationToken.None as the last parameter for the GetAsync method

  

  Yes, I tried it, but still get exception. session = await _sessionRepository.GetAsync(Guid.Parse(sessionId), cancellationToken: CancellationToken.None);

  Exception: System.Threading.Tasks.TaskCanceledException: A task was canceled.

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  var cts = new CancellationTokenSource();
  session = await _sessionRepository.GetAsync(Guid.Parse(sessionId), cancellationToken: cts.Token);
  

  Save Cancel
• 

  0

  dev1.abp.advantiss created 3 years ago

  hi

  var cts = new CancellationTokenSource(); 
  session = await _sessionRepository.GetAsync(Guid.Parse(sessionId), cancellationToken: cts.Token); 
  

  It seems like everything is ok! Thank you for support!

  Save Cancel