Thanks for the responses. James, I also get the same error messages as the one
you described. I think they may be related as I managed to create some of them
by accident when attempting to catch and work with some of those unhandled
exceptions within the mainframe.aspx. They are preceded by another error that
looks like: “Faulting application name: w3wp.exe, version: 7.5.7601.17514, time
stamp: 0x4ce7afa2….” I just noticed the following post in the Autodesk
support site. It looks like this or a very similar issue is considered to be a
known issue and will hopefully get patched up soon.
http://knowledge.autodesk.com/support/infrastructure-map-server/troubleshooting/caas/sfdcarticles/sfdcarticles/Mapserver2014AppPool-Error.html
From: northtron [via OSGeo.org] [mailto:[email protected]]
Sent: Friday, May 09, 2014 6:55 AM
To: Galambos, John
Subject: Re: Unhandled exceptions in IIS web tier
I think I recall having to set my recycle limits on the AppPool for stability
from errors in Mapguide as well.
Fiddle Fiddle Fiddle with different setting until things calm down.
I think they could be set by memory size (as you've done) or after a certain
time. I believe I set my Win2008R2 Server to recycle every 2 hours.
On Fri, May 9, 2014 at 9:42 AM, Berg, James <[hidden
email]</user/SendEmail.jtp?type=node&node=5139435&i=0>> wrote:
I struggle with events related to mapguide because I don't really understand
them. Several times a day we get logs like
"A process serving application pool 'MapGuide25AppPool' suffered a fatal
communication error with the World Wide Web Publishing Service. The process id
was '17544'. The data field contains the error number. "
with the source being W3SVC. W3svc.exe is the process related to the
application pool in IIS that represents the website that holds mapguide.
It's tricky for me to figure out what the cause of the errors are. It could be
a memory leak in my own application (fairly likely,) so I can't blame mapguide
for it off the bat.
Basically, whenever my application pool fails, maps stop loading until I
manually recycle the application pool. Without knowing the exact cause, the
only workaround I've come up with is to configure my application pool to
automatically recycle whenever it accumulates a certain amount of virtual
memory. I've got it set to recycle at 800 megabytes, but I might decrease that
number if problems persist.
The hope is that frequent recycling will prevent errors.
It's also important to note that my application does not use InProc session
handling in web.config. That's the default setting and application pool
recycling would reset any sessions (very bad.) Instead I use the StateServer
setting. That way session aren't reset upon application pool resets.
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