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Concurrent queue exception

Posted on 2011-03-11
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Last Modified: 2012-06-27
Hi,

I recently changed a live application to .net 4 in order to use concurrentDictionary's and queues. I received the following error:
at System.Collections.Concurrent.ConcurrentQueue`1.GetHeadTailPositions(Segment& head, Segment& tail, Int32& headLow, Int32& tailHigh) at System.Collections.Concurrent.ConcurrentQueue`1.get_Count() at [i]MY METHOD[/i]

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This is quite a complex app with several threads accessing the objects simulataneously, can anybody help geive me an insight into what condition would raise this error?

Thanks
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Question by:basil365
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7 Comments
 
LVL 13

Expert Comment

by:Naman Goel
ID: 35110902
can you give more details stack trace of exception, method/thread causing exception
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Author Comment

by:basil365
ID: 35111325
Sorry, thats the only exception i received this time. I have since removed the queue.count call as i assume its not needed because i then use the 'tryDequeue()' method and base further logic on the bool result (instead of using the count to decide if i should continue)
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LVL 13

Expert Comment

by:Naman Goel
ID: 35111370
yes, for that exception only I need complete Call Stack trace with Exception message, error code.

Method call causing that exception.
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LVL 8

Expert Comment

by:Volox
ID: 35118532
Without the exception name and message included, it is kind of hard to address your question.
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Accepted Solution

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basil365 earned 0 total points
ID: 35234906
i solved the question - the thread that was manipulating the queue was being ungracefully aborted which gave the error that i posted. There was no more available stacktrace
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