The WebSocket is in an invalid state ('Aborted') for this operation

[ilya-git]

Actual Behavior

1. I run the message loop with IMessageReceiver.RegisterMessageHandler
2. In my logs I see sometimes (quite rare, but still) this exception that I log in a handler for unobserved task exception (TaskScheduler.UnobservedTaskException).

=== Exception ===
System.AggregateException: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. ---> System.Net.WebSockets.WebSocketException: The WebSocket is in an invalid state ('Aborted') for this operation. Valid states are: 'Open, CloseReceived'
at System.Net.WebSockets.WebSocket.ThrowOnInvalidState(WebSocketState state, WebSocketState[] validStates)
at System.Net.WebSockets.WebSocketBase.d__47.MoveNext()
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.Net.WebSockets.WebSocketException (0x80004005): The WebSocket is in an invalid state ('Aborted') for this operation. Valid states are: 'Open, CloseReceived'
at System.Net.WebSockets.WebSocket.ThrowOnInvalidState(WebSocketState state, WebSocketState[] validStates)
at System.Net.WebSockets.WebSocketBase.d__47.MoveNext()<---

Expected Behavior

1. Tasks should be observed in the library

Versions

• OS platform and version: Windows 10
• .NET Version: 4.6.2
• NuGet package version or commit ID: 3.0.2

I am not 100% sure that this comes from the library, but the only other network operations I have is WCF which I have never seen to produce such an error. But I do suspect this happens after some network errors or something similar inside the library.

[nemakam]

@ilya-git - Do you use web sockets with service bus client?
TransportType = TransportType.AmqpWebSockets?

[ilya-git]

Yes, I use AmqpWebSockets, thoughtI suppose default is same sockets as well, just another port (not 443).

[nemakam]

The default doesn't go through "webSockets", just sockets :)
Wouldn't have received any exception from websocket code.