[mapserver-users] MapServer as fast-cgi

Sun May 30 08:44:06 PDT 2010

Hi Lars, also working on a sunday :-)

Thank you very much for your reply.

The fcgid-module is enabled/installed.

I changed the pathes in the pathes you use,
in the access.log of apache is written:

131.173.59.53 - - [30/May/2010:17:31:55 +0200] "GET 
/blabla/blabla/Testkarte12752335142537.jpg HTTP/1.1" 200 26397 
"http://www.mydomain.de/fcgi-bin/mapserv?map=/my_path/mapdatei.map" "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.3) 
Gecko/20100401 Firefox/3.6.3 GTB7.0 ( .NET CLR 3.5.30729)"

...what looks quite good I think.

If I restart apache I get:

[Sun May 30 17:35:25 2010] [notice] mod_fcgid: process /blabla/cgi-bin/mapserv(2537) exit(shutting down), terminated by calling exit(), return code: 0
[Sun May 30 17:35:26 2010] [notice] Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny8 with Suhosin-Patch configured -- resuming normal operations

....but I don`t get something like:

[Sun May 30 16:38:27 2010] [info] mod_fcgid: server
/var/www/clients/client1/web1/fcgi-bin/mapserv(21099) started

----
>With fcgi your MapServer processes will stay in memory. You should see
>them within "top" even when the map is already delivered. And with
>CLOSE_CONNECTION=DEFER you can then reuse database connections which in
>turn will make your application faster.

I`m not sure if I understand. What do you mean with:
"You should see them within "top" even when the map is already delivered."

And  can`t I check it with the "Debug 5" in the log-file?

Thank you very much, Kai
-------- Original-Nachricht --------
> Datum: Sun, 30 May 2010 16:47:24 +0200
> Von: Lars Lingner <ml at lingner.eu>
> An: mapserver-users at lists.osgeo.org
> Betreff: Re: [mapserver-users] MapServer as fast-cgi

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On 30.05.2010 16:10, Kai Behncke wrote:
> > Dear users,
> > 
> > 
> > I try to set up Mapserver with fast-cgi, but so far it doesn`t work as
> it should do 
> > (well I think it doesn`t, I`m also not so sure how to test ist).
> > 
> > * I have succesfully compiled MapServer 5.6.3 with fast-cgi (on Debian
> 5.0)
> > 
> > * Apache runs with mod_fcgid
> > 
> > * In the mapfile I have implemented in the layers  "PROCESSING
> "CLOSE_CONNECTION=DEFER"
> > 
> > But some steps I don`t understand:
> > 
> > In the apache-conf I set:
> > 
> > 
> > 
> > ScriptAlias /fcgi-bin/ "/etc/apache2/cgi-bin/mapserv"
> > <Location "/fcgi-bin">
> > Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
> > SetHandler fcgid-script
> > Order allow,deny
> > Allow from all
> > #FastCgiConfig -initial-env PROJ_LIB=/usr/share/proj -initial-env
> #LD_LIBRARY_PATH=/usr/lib:/usr/local/lib:/usr/local/pgsql/lib #-appConnTimeout 60
> -idle-timeout 60 -init-start-delay 1  -minProcesses 2 #-maxClassProcesses
> 30 -startDelay 5
> > 
> > </Location>
> > 
> > 
> > a) If I comment in FastCGIConfig ...... I always get from the Apache:
> > "Invalid command 'FastCgiConfig', perhaps misspelled or defined by a
> module not included...." ??
> > 
> > What might be the reason for that?
> 
> Does Apache load the fcgid module?
> You can check in /etc/apache2/mods-enabled if its enabled
> 
> and in /etc/apache2/mods-available if its installed
> 
> Or check the error.log of apache:
> [Sun May 30 16:38:27 2010] [info] mod_fcgid: server
> /var/www/clients/client1/web1/fcgi-bin/mapserv(21099) started
> 
> 
> I have the following config:
> 
> ScriptAlias /fcgi-bin/ "/path/to/fcgi-bin/"
> 
> <Location "/fcgi-bin">
>     SetHandler fcgid-script
>     Options None
>     Order allow,deny
>     Allow from all
> </Location>
> 
> my /etc/apache2/mods-enabled/fcgid.conf looks like this:
> 
> <IfModule mod_fcgid.c>
>   AddHandler    fcgid-script .fcgi
>   IPCConnectTimeout 20
> </IfModule>
> 
> 
> 
> > 
> > b) I start the Apache without the "FastCGIConfig" in the
> apache-conf-file
> >  and I run the MapServer as:
> > 
> > http://www.xyz.de/fcgi-bin/?map=/path_to_my/mapfile.map
> > 
> > ...this should be the way to run MapServer as fast-cgi, shouldn`t it?
> 
> Hmm. I defined the scriptalias as path to the fcgi directory and not to
> the binary. So the request URL is something like this:
> 
> http://example.org/fcgi-bin/mapserv?map...&...
> 
> But I don't know if your way might also be ok.
> 
> 
> > 
> > c) I thought, if I run MS with "Debug 5" the layers should be produced
> much faster, right?
> > But the log-file doesn`t show any difference betwenn MS as cgi or fcgi,
> this might be because of
> > the missing FastCgiConfig in Apache, right?
> > 
> 
> With fcgi your MapServer processes will stay in memory. You should see
> them within "top" even when the map is already delivered. And with
> CLOSE_CONNECTION=DEFER you can then reuse database connections which in
> turn will make your application faster.
> 
> 
> Lars
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