Getting AccessViolaitonException

Description

I very often get an AccessViolationException from Consumer when raising a cancellation with a CancellationToken instance passed into .Consume() method:

Consumer.Consume(cancellationToken);

Checklist

Please provide the following information:

• [1.1.0 ] Confluent.Kafka nuget version.

[alexandery]

I’m seeing the exception when running in a debugger, so VS just breaks on the .Consume(cancellationToken) line and displays the exception pop-up.

I see that internally Consumer is doing cancellationToken.ThrowIfCancellationRequested(); and sometimes I get the related exception (OperationCanceledException), which I expect and process accordingly, but often I get the AccessViolationException, which can only be coming from ConsumeImpl() that interacts with librdkafka.

I’m running a test Net Core 2.2 console app, and that’s where I see the behavior.

But yes, I do have .Close() and wrap the message consumption in a try...catch..finally. So running outside of the debugger I’d be handling generic exception and moving on, but this is still concerning.

[AskMeAgain]

Its probl. to late, but if someone else is reading this: I think got this error when the consumer got disposed WHILE the Consume() happened. If you Dispose the consumer and then call consume, you get the normal ObjectDisposedException.