BOS Connection Lost

Hi,

Under what circumstances will one get the following error (extracted from debuglog.xml)?

<entry id="30" timestamp="2010-08-24T16:48:43" username="USERNAME" source="IdeaBlade.Cab.UI.Services.DevForceLoggingService:Error">Persistence Connection Exception

An error occurred while receiving the HTTP response to http://testsrv:9999/EntityServer_EXTENSION. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.</entry>

The application starts up okay.  In 2-tier mode, there are no issues or complications.  In n-tier mode, it starts up just fine, spitting out a number of queries that yield data for configuring the Windows client - menu, display grids, etc.

The first two forms come up fine.  We try displaying a report and then come up short with the error above.

Hi,

We were using Crystal Reports for Visual Studio 2008 and have ported to Crystal Report for Visual Studio 2010.

We're running n-tier on a LAN and the issue doesn't just come up when we're trying to print a report.  It occurs when you start moving between screens and racking up queries.  I actually used port 9989 with the standard template for Windows Forms n-tier deployment and that worked fine (after I ironed out some issues on my end with the connection strings).  There doesn't seem to be any issue there cos it just keeps going even though I didn't try printing a report. 

I tried deploying the BOS on IIS running on one of our Windows Server 2003 machines and came up short.  It said it couldn't start the EntityServer_EXTENSION.svc service.  Maybe I was just being lazy or need a clean machine (because the site on IIS we used runs off port 8787).  That's when I resorted to ServerService.exe which is the way we were running DevForce 2009.

We've never really had success deploying on IIS or the ASP.NET Development Server so having it run on the ASP.NET Development Server that comes with Visual Studio 2010 (on my machine) was a major boost to confidence.  Put it on a LAN and it all goes poof.

I know I am doing something wrong just can't figure out what it is.

Yes, the EntityManager becomes disconnected when there is a connection error or if the server throws an exception.  Did you implement any server-side logic (e.g. in the EntityServerQueryInterceptor or InvokeServerMethod)?  On saves, the EntityServerSaveInterceptor and Validation logic is also triggered.


Edited by ting - 25-Aug-2010 at 5:29pm

Hi Ting,

Thanks.  I will try out your suggestion.  I really wasn't aware of the "known" bug. 

Kind of curious though, why is it like that?  Also, I am not doing SxS?

Will keep you posted.


Edited by eniben - 26-Aug-2010 at 12:21am