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OperationCanceledException from Microsoft.Azure.SignalR.ServiceConnection when app restarts #1777
Comments
Experiencing this too :-) Anyone knows how to handle this gracefully? When we deploy (rolling deployments), we'll get this exception in our log for each connection, which tends to get a bit too spammy. |
Hi @bodamgaard could you share the callstack? are you using the latest SDK? I'd like to double confirm the latest exception thrown. |
Sure, this is the exception that I have in our log. Very limited callstack ;-) :
Source context: Microsoft.Azure.SignalR.ServiceConnection Using this version of Microsoft.Azure.SignalR: Hope that is useful :-) |
Describe the bug
Facing OperationCanceledException from Microsoft.Azure.SignalR.ServiceConnection specially during every deployment or webapp restart or sometimes we have seen this exception coming even when deployment or restart is not done.
And further there are 2 subtypes :
The operation was canceled.
Exception:
System.OperationCanceledException: The operation was canceled.
at System.Threading.CancellationToken.ThrowOperationCanceledException()
at System.IO.Pipelines.Pipe.GetReadAsyncResult()
at System.IO.Pipelines.Pipe.DefaultPipeReader.GetResult(Int16 token)
at Microsoft.Azure.SignalR.ServiceConnection.SkipHandshakeResponse(ClientConnectionContext connection, CancellationToken token)
Solution
we can silently fail the connection instead of throwing out the exception
To Reproduce
Exceptions (if any)
Further technical details
Microsoft.AspNetCore.SignalR
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