[Mono-dev] WCF Fail with System.Net.Sockets.SocketException: Connection reset by peer

Rob Wilkens robwilkens at gmail.com
Fri Jun 29 13:23:38 UTC 2012

Hi Shahbour,

I think this is a lucky timing issue..  That is: The Thread.Sleep makes
the SocketException happen in between when we are receiving or
sending...  In your stacktraces, it's always WHILE we are sending or
receiving that the disconnect happens and the crash occurs. 

One way to reproduce this might be to spawn copies that send LOTS of
data (could be a bunch of zeroes) and receives back a bunch of data
(again could be a bunch of zeroes), and while we spawn those copies,
wait just long enough for the connection to start, then kill the client
process externally (equivalent of kill -9 proc)....  And then just have
this whole spawn and kill thing in a loop until it fails.

One way to send lots of zeroes or whatever, would be to send a string,
but before we send that string, continually append to that string in a
loop so it becomes very long..

What do you think?


On 06/28/2012 06:35 PM, shahbour wrote:
> http://mono.1490590.n4.nabble.com/file/n4650235/TestWCFServer.zip
> TestWCFServer.zip 
> Hello Rob
> I am attaching a simple application to demonstrate the error we are getting.
> Unfortunately using the above example the server is not crashing but still
> it raise the error (note that in my live app , some time it do the same but
> crash more) 
> If you run the server like below you will notice the error
> mono --debug --trace=N:nothing TestWCFServer.exe
> Press enter to exit
> [0xb0a7d000:] EXCEPTION handling: System.Net.Sockets.SocketException:
> Connection reset by peer
> [0xb0a7d000:] EXCEPTION handling: System.IO.IOException: EndRead failure
> To run the example just start the server , then start the client and before
> getting the result back from server close it (Ctrl+C) 
> I put a delay in the server to demonstrate the request over internet and to
> have time to close it. After you close it by small time the application will
> raise the above error .
> Tomorrow I will change the client to a silver light application to simulate
> exactly my application because the server crash approximately every time I
> close the browser before getting the result in my live example.
> BR
> Shahbour
> --
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