[FX.php List] FMS Server Console gets whacky/ CWP fails under IIS

[Bob Patin]

Jonathan,

When I've seen error 22, and I have only rarely (on Mac OS X Server), it was because the WPE quit working; a web server restart fixes it.

With that many transactions I don't understand why they're all on a single machine. If it were my client, I'd RUN to a two-machine configuration first thing.

Bob Patin



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On Jan 7, 2010, at 1:58 PM, Jonathan Schwartz wrote:

> Hi Folks,
> 
> I have a client who has experienced long term, persistent failures of CWP on a regular basis.  I'm looking for answers.
> 
> The environment is Windows Server 2008 running on a single 64 bit machine with 8GB ram. The FileMaker solution is 5GB or so, and used by an office staff of 15-20 or so.  In addition to the native FileMaker users, the system supports a busy web site that handles approximately 30,000 transactions per day.  I know that FMI recommends a multiple machine deployment, but the problem may or may not be related to that.
> 
> This deployment uses the API, but I'm not sure if that matters.
> 
> Every so often, Custom Web Publishing stops communicating, generating error 22...an error that doesn't appear on any lists that I found so far.  With the error, all web pages that require CWP stop responding, although IIS does display the html.
> 
> When consulting the Server Console, we find that the Console is a bit confused.  It displays green indicators for Server and Web Server in the middle of the page. However, the Start and Stop buttons on the upper left say otherwise.  The Start Server button is active and can be clicked...although it doesn't do anything.  The Web Server buttons suggest that the Web engine is working..but it isn't really.
> 
> When the problem occurs, we need to perform some or all of the following steps:
> 	- Stop/Start IIS
> 	- Stop/Start the hardware
> 	- Redeploy FileMaker Web  Publishing
> 
> One clue that we have observed is what appears to be a memory leak. Memory usage steadily grows from under 2GB upon restart to 5GB and higher over a day's time.  We don't know what is leaking.
> 
> My involvement in this project is solely the Web Publishing portion.
> 
> My area of concern is for PHP session data that might be contributing to the problem. I use sessions to store variables that are employed throughout the user session. I destroy sessions when a user reaches an end point in the system. However, some subsystems do not have end points, so I rely on PHP to end the session and do garbage collection.  I can not confirm that that is actually happening. Windows is not my strong suit.
> 
> I have the opportunity to completely eliminate sessions from the PHP programming, relying  on POST and GET to pass key fields from page to page and perform queries to retrieve data that I currently use sessions to store.
> 
> I would do this if I had any confidence that this was the cause of the problem...which I don't.
> 
> So, my questions are:
> 
> Does anyone else experience regular failures of Windows based CWP?
> Are there any special recommendations to keep sessions-related memory under control?
> Anything else?
> 
> Thanks
> 
> Jonathan
> 
> 
> 
> 
> 
> 
> -- 
> Jonathan Schwartz
> Exit 445 Group
> jonathan at exit445.com
> http://www.exit445.com
> 415-370-5011
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