[mapguide-users] RE: Studio Enterprise and Web Studio Cannot Connect Randomly

[Jason Birch]

Hi Trevor,
 
I've seen this second issue ("There is also an occassional cannot
connect to URL error when a FastCGI Mapagent process has shutdown and
another one has not started up yet") fairly consistently.
 
Is there any way to configure FastCGI to avoid this?  Like a minimum
number of active processes?
 
Jason
 


________________________________

From: Trevor Wekel 
Sent: Wednesday, November 15, 2006 11:04
To: Chris Gountanis; users at mapguide.osgeo.org
Subject: [mapguide-users] RE: Studio Enterprise and Web Studio Cannot
Connect Randomly


Hi Chris,
 
IIS under Windows XP has a hard coded concurrent connection limit - 10
connections I think.  Internet Explorer and the embedded  IE control
within Studio may spin up that many connections to serve a map.  If you
get back a bunch of 403 errors then you are probably hitting this limit.
 
There is also an occassional cannot connect to URL error when a FastCGI
Mapagent process has shutdown and another one has not started up yet.
Typically, this is a single error.  The error "wakes up the agent" and a
second connection attempt should go through successfully.
 
I have also seen rare cases where the Apache/IIS FastCGI link to
Mapagent.exe and php-cgi.exe does not initialize successfully.  This
effectively locks out the Web Extensions.  In these cases stopping
Apache or IIS, manually killing all of the mapagent.exe and php-cgi.exe
process, and restarting Apache or IIS generally corrects the problem.
As an added measure of insurance, stopping and restarting MapGuide
Server can be performed along with the Apache/IIS restart.
 
 
Hopefully this will help,
 
Trevor
 
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