Re: Windows Service and WCF Service Problem

After working on this all day I have no more idea about what's going on that
I did before.
However, I have used the Windows Debugging Tools and adplus to create a dump
of the service while it's currently "hanging."

Here's a dump of the relevant WCF thread:

ESP       EIP
05a1ee1c 7c90e514 [HelperMethodFrame_1OBJ: 05a1ee1c]
System.Threading.WaitHandle.WaitMultiple(System.Threading.WaitHandle[],
Int32, Boolean, Boolean)
05a1eee8 0364b3ff
System.Threading.WaitHandle.WaitAny(System.Threading.WaitHandle[], Int32,
Boolean)
05a1ef08 0647760d
System.ServiceModel.Channels.IOThreadTimer+TimerManager.OnWaitCallback(System.Object)
05a1ef3c 06f66f19
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper+WorkItem.Invoke2()
05a1ef7c 06473948
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper+WorkItem.OnSecurityContextCallback(System.Object)
05a1ef84 0364fe65
System.Security.SecurityContext.Run(System.Security.SecurityContext,
System.Threading.ContextCallback, System.Object)
05a1ef9c 0647390d
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper+WorkItem.Invoke()
05a1efb0 06473890
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper.ProcessCallbacks()
05a1efe4 064736ea
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper.CompletionCallback(System.Object)
05a1f010 0647365f
System.ServiceModel.Channels.IOThreadScheduler+CriticalHelper+ScheduledOverlapped.IOCallback(UInt32,
UInt32, System.Threading.NativeOverlapped*)
05a1f01c 7924e6cd
System.ServiceModel.Diagnostics.Utility+IOCompletionThunk.UnhandledExceptionFrame(UInt32,
UInt32, System.Threading.NativeOverlapped*)
05a1f050 0364cdc4
System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32,
UInt32, System.Threading.NativeOverlapped*)
05a1f1f0 79e71b4c [GCFrame: 05a1f1f0]
OS Thread Id: 0xd4c (13)

I was hoping that someone here might recognize one or more of these methods
and could tell me what direction to go from here.

Thanks,
Mike

On Wed, Aug 26, 2009 at 9:38 AM, John Warner <[email protected]> wrote:

> Take a quick look at this:
>
> http://www.codeproject.com/KB/dotnet/threadmonitor.aspx
>
> In your situation it may make things worse but
>
> John Warner
>
>
> > -----Original Message-----
> > From: Discussion of advanced .NET topics. [mailto:ADVANCED-
> > [email protected]] On Behalf Of Mike Andrews
> > Sent: Wednesday, August 26, 2009 10:31 AM
> > To: [email protected]
> > Subject: Re: [ADVANCED-DOTNET] Windows Service and WCF Service
> > Problem
> >
>  > I doubt it since it's not doing any UI interactions.  All ongoing
> activity
> > is occurring with WCF and various threads.
> > Is there a way to tell if you have any threads that are locked because a
> is
> > waiting on b is waiting on a?
> >
> > On Wed, Aug 26, 2009 at 8:43 AM, Ernst Kuschke <[email protected]>
> > wrote:
> >
> > > Hi,
> > > I'm not sure what exactly it does, but does your Windows Service
> perhaps
> > > need the "Allow service to interact with desktop" permission?
> > > --
> > > Ernst Kuschke
> > > MVP - C# (South Africa)
> > > http://dotnet.org.za/ernst
> > >
> > > On Wed, Aug 26, 2009 at 3:16 PM, Mike Andrews
> > > <[email protected]>wrote:
> > >
> > > > I'm implementing a windows service and it contains a WCF client to
> talk
> > > to
> > > > a
> > > > WCF service.  The windows service provides drop-folder functionality
> for
> > > > files so that the files are picked up and processed using WCF
> services.
> > >  I
> > > > uses a process scheduler to allocate multiple files to multiple
> > > processors
> > > > to handle these files.  It all works fine when I test outside the
> > > confines
> > > > of the windows service.  However, once executed in the context of a
> > > windows
> > > > service it fails when the WCF service issues a callback to it's
> client
> > > > (which in this case is the windows service) . Then it just hangs.
> I'm
> > > able
> > > > to break into the code and see that is is the callback in the WCF
> service
> > > > that is hanging.  No code has been executed in the client (windows
> > > > service).  It could be a permissions issue, but I changed the
> account of
> > > > the
> > > > windows service from LocalSystem to my user account for testing to
> see if
> > > > that made a difference and it did not.  I'm administrator of the
> machine
> > > > I'm
> > > > executing both the WCF service and the windows service.
> > > >
> > > > I'm at a loss here to figure out what's going on with this.  This is
> > > tried
> > > > and tested code (both the WCF client and WCF service) that has
> worked
> > for
> > > > months now and works outside the context of a windows service.  The
> > code
> > > > and
> > > > examples I'm seeing online are utilizing a windows service as a WCF
> > > service
> > > > but this is not my case.  Is there something I'm missing here to
> allow it
> > > > to
> > > > work?  Some setting I need that I cannot seem to find?
> > > >
> > > > Any help would be most appreciated.
> > > >
> > > > Thanks,
> > > > Mike
> > > >
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