Steema Central

My app works perfectly on my development server but I'm having trouble deploying it to a Windows 2003 Web Server. The chart on my main page, a volume graph Webchart, often does NOT render. This seems to occur at random...sometimes the chart displays correctly, I get responses to series click events through ASP.NET AJAX Asynchpostback, etc...
Yet sometimes, even on int ital loading of the page, the chart does not appear or appears but without data. This NEVER happens on my development box when testing through visual studio. What could cause this?
The development system is running XP Pro, I'm using Visual Studio 2005, TeeChart .NET 3.5, AASP.NEt 2.0, ASP.NET AJAX including the toolkit, and IE 6.0.

Also, I'm using session for tmpChart and have AutopostBack set to true as I'm currently not using any add on tools for this chart – but I need to respond to user mouse clicks.
I've tried cache and httphandler in lieu of session but they didn't seem to work at all.

Any ideas? Could this be an IIS setup issue, security issue, timing issue, ... ???

Thanks,
rich

I seem to have stumbled upon the answer to this issue. By configuring the "maximum number of worker processes" to 1 in the ISS Application pool on the windows 2003 Server, things seem to work fine. No more blank graphs or missing data...

I'm not quite sure why - I'm not an expert in IIS configuration - but it works.


thanks,
Rich

Hi There

We have this same issue, but it is not possible for us to run out live server with just 1 worker process per app pool. Are there any otherways to resolve this problem.

Many Thanks

James

Hello James,

Does this problem occur under load? If so could you give us some information about the machine setup, chart setup and typical server load (simultaneous page accesses) and we'll see if we can reproduce the issue.

With thanks.
Regards,
Marc Meumann