Hi, I'm getting TaskCanceledException: A task was canceled. on SignalR in OnDisconnectedAsync method.
It cancels getting entity from DB. This cause problem, but it don't appears in the log.
How resolve?
- ABP Framework version: v4.3.3
- UI type: Angular
- DB provider: MongoDB
- Tiered (MVC) or Identity Server Separated (Angular): yes
- Exception message and stack trace: at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification) at Project.SignalR.ProjectSessionHub.OnDisconnectedAsync(Exception exception) in D:\Projects\Project\aspnet-core\src\Project.Application\SignalR\ProjectSessionHub.cs:line 103 at Castle.Proxies.ProjectSessionHubProxy.OnDisconnectedAsync_callback(Exception exception) at Castle.Proxies.Invocations.ProjectSessionHub_OnDisconnectedAsync.InvokeMethodOnTarget() at Castle.DynamicProxy.AbstractInvocation.Proceed() at Castle.DynamicProxy.AbstractInvocation.ProceedInfo.Invoke() at Castle.DynamicProxy.AsyncInterceptorBase.
6 Answer(s)
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0
hi
Can you use
awaitto 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
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0
Can you try to add
CancellationToken.Noneas 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.Markdown supported.Copy, paste, or drag & drop images and files (max 100 MB per file, 100 MB total per post) -
0
hi
var cts = new CancellationTokenSource(); session = await _sessionRepository.GetAsync(Guid.Parse(sessionId), cancellationToken: cts.Token);Markdown supported.Copy, paste, or drag & drop images and files (max 100 MB per file, 100 MB total per post) -
0
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!
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