[mapguide-users] VMWare, MGOS and Windows XP SP2

Thu May 29 13:49:58 EDT 2008

Yes, I should've mentionned we did that adsutil MaxConnection trick. We do
that on pretty much any XP machine we configure now. However, even boosted
to 40, we'll eventually get the Too Many Connection error.

I do not believe the error in itself is related to the IIS itself. As all of
the API calls done directly through the Mapguide Agent will work. The Studio
works flawlessly as well. However, any API calls done through the .NET API
to Mapguide will fail at the MGSiteConnection::Open call. Which is where the
problem lies. Eventually, the calls will start getting through and
everything will work just fine. Wether the call is done from an ASP.NET
page, or a desktop application or whatever.

This problem never occurs on any of our non-virtualized OSes. So my guess
was that there is something different that has to be done with MGOS to work
well on VMWare.

Trevor Wekel wrote:
> 
> This post seems to indicate that it is possible to increase the IIS
> connection limit on Windows XP.  I haven't tried it though.
> 
> http://www.codinghorror.com/blog/archives/000329.html
> 
> Trevor
> 
> 
> -----Original Message-----
> From: Andy Morsell [mailto:amorsell at spatialgis.com]
> Sent: Thursday, May 29, 2008 9:55 AM
> To: 'MapGuide Users Mail List'
> Subject: RE: [mapguide-users] VMWare, MGOS and Windows XP SP2
> 
> Yeah, I'm with you on that.  Apache is so much easier to configure and get
> things working.  Unfortunately it doesn't help us when customers require
> that development be done in .NET.....
> 
> 
> Andy
> 
> -----Original Message-----
> From: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Martin
> Morrison
> Sent: Thursday, May 29, 2008 8:10 AM
> To: MapGuide Users Mail List
> Subject: RE: SPAM-LOW: [mapguide-users] VMWare, MGOS and Windows XP SP2
> 
> I just want to note that there is a better fix...use Apache...
> 
> <G>
> 
> Martin
> 
> 
> -----Original Message-----
> From: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Andy Morsell
> Sent: Thursday, May 29, 2008 11:06 AM
> To: 'MapGuide Users Mail List'
> Subject: RE: SPAM-LOW: [mapguide-users] VMWare, MGOS and Windows XP SP2
> 
> Your "too many connections" problem is a limitation of IIS on XP.  There
> is
> some information here on how to override it.
> 
> http://wiki.osgeo.org/wiki/MapGuide_Open_User_Technical_FAQ%27s
> 
> 
> Andy Morsell, P.E.
> Spatial Integrators, Inc.
> http://www.SpatialGIS.com
> 
> -----Original Message-----
> From: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of BenoitBegin
> Sent: Thursday, May 29, 2008 5:45 AM
> To: mapguide-users at lists.osgeo.org
> Subject: SPAM-LOW: [mapguide-users] VMWare, MGOS and Windows XP SP2
> 
> 
> Hi,
> 
> We've been trying to setup test environments and demo environments using
> VMWare and Mapguide OpenSource 1.2 (going to move up to 2.0 shortly
> however). For some reason that is beyond me, we cannot seem to get MGOS to
> function properly.
> 
> After the VM is booted up and in Windows XP SP2, if we try to open either
> the AJAX Viewer or any custom pages that uses MGSite::Open(...), it will
> throw an Exception saying "Cannot Establish Connection". However, if we
> can
> use the Mapguide Studio properly... saving resources, etc etc. We can even
> go in the MapAgent test page and call any commands, like CreateSession and
> the likes. It all works fine. It really does seem as if the problem is at
> the .NET API level, where anything that goes through that API will crash
> and
> burn.
> 
> If we keep hitting the AJAX Viewer with attempts, eventually IIS will spit
> out a "Too many connections" error. If we run an IIS reset after that
> error
> and return to the AJAX Viewer, or our custom pages, they will run without
> any problems or connection exceptions.
> 
> We've built quite a bit of sites using both MGOS and MGE without these
> kinds
> of issues. They only seem to crop up using VMWare. Is there anything
> specific to VM that needs to be setup, either at the VMWare level or
> Mapguide level, to make them work properly?
> 
> Thanks!
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