[mapguide-users] Maximum WMS request image size

[azpublic]

Hi, 

 

I was wondering what was the maximum image size for a WMS getImage request ?


 

I successfully managed to generate a 8192 X 8192 image in a couple of
minutes (I had to raise the session timeout both in the Mapguide and apache
FastCGI configuration = I raised it to 1200 seconds instead of the initial
120)   

 

When I tried the next level I need which is a 16384 X 16384 image  my
machine just works eternally and eventually the request times out after the
1200 seconds limit … 

 

Is there a way to manage to generate such bigger images by tweaking some
parameters / increasing memory somewhere ? 

 

Below is an extract of my apache log for the period during which I ran the
16384 X 16384 test 

 

Has the “reached dynamicMaxClassProcs (4)” error something to do with the
fact that the image generation failed? 

 

Thanks in advance. 

 

 

 

 

Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3596) termination signaled

[Thu Jan 03 19:56:27 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3596) terminated with exit with status '0'

[Thu Jan 03 20:02:44 2008] [warn] FastCGI: scheduled the restart of the last
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
process: reached dynamicMaxClassProcs (4)

[Thu Jan 03 20:02:45 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
restarted (pid 5000)

[Thu Jan 03 20:04:26 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
5000) termination signaled

[Thu Jan 03 20:04:27 2008] [warn] FastCGI: scheduled the restart of the last
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
process: reached dynamicMaxClassProcs (4)

[Thu Jan 03 20:06:28 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
5000) terminated with exit with status '0'

[Thu Jan 03 20:06:28 2008] [warn] FastCGI: scheduled the restart of the last
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
process: reached dynamicMaxClassProcs (4)

[Thu Jan 03 20:06:29 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
restarted (pid 3256)

[Thu Jan 03 20:14:27 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3256) termination signaled

[Thu Jan 03 20:14:27 2008] [warn] FastCGI: scheduled the restart of the last
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
process: reached dynamicMaxClassProcs (4)

[Thu Jan 03 20:16:31 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3256) terminated with exit with status '0'

[Thu Jan 03 20:16:31 2008] [warn] FastCGI: scheduled the restart of the last
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
process: reached dynamicMaxClassProcs (4)

[Thu Jan 03 20:16:32 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
restarted (pid 4228)

[Thu Jan 03 20:22:45 2008] [error] [client 127.0.0.1] FastCGI: comm with
(dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"
aborted: (first read) idle timeout (1200 sec)

[Thu Jan 03 20:22:45 2008] [error] [client 127.0.0.1] FastCGI: incomplete
headers (0 bytes) received from server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe"

[Thu Jan 03 20:24:27 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
4228) termination signaled

[Thu Jan 03 20:26:30 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
4228) terminated with exit with status '0'

[Thu Jan 03 20:34:26 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
4608) termination signaled

[Thu Jan 03 20:36:47 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
4608) terminated with exit with status '0'

[Thu Jan 03 20:44:27 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
2116) termination signaled

[Thu Jan 03 20:46:40 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
2116) terminated with exit with status '0'

[Thu Jan 03 20:54:26 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3096) termination signaled

[Thu Jan 03 20:56:31 2008] [warn] FastCGI: (dynamic) server "C:/Program
Files/MapGuideOpenSource/WebServerExtensions/www/mapagent/MapAgent.exe" (pid
3096) terminated with exit with status '0'

 


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