Re: mod_perl survey results
On Mon, 10 Nov 2008, Adam Prime wrote:
> André Warnier wrote:[color=green]
>> Maybe this is the time to ask.
>> I am using Linux Debian, and getting Apache 2, perl and mod_perl 2 from
>> there (apt-get).
>> I have never been quite sure which mpm the packager decided to configure,
>> as the apache2.conf contains parameters for prefork, pthread and perchild. [/color]
> ./httpd -V
> Server version: Apache/2.0.54
> Server built: Sep 25 2005 00:31:31
> Server's Module Magic Number: 20020903:9
> Architecture: 32-bit
> Server compiled with....
> -D APACHE_MPM_DIR="server/mpm/prefork"
> The -D APACHE_MPM_DIR tells you which MPM your apache is using. In orderto
> change MPM's you need to recompile apache, and quite possibly mod_perl as
> well, i have no idea how you'd accomplish that on debian using apt.[/color]
The Debian distribution packages the different MPMs into different
binary packages, which are labelled as alternatives to each other, so you
load apache2-common and the MPM of your choice. Each MPM package contains
a suitably compiled binary. If you don't choose explicitly, apt-get picks
one (prefork, I think) for you.
However, and it's an important one, the Debian packaging system
also contains expectations from the maintainer(s) about which MPMs are
required or recommended for mod_perl2, mod_php5, and so forth, and will
not let you choose an MPM which those extra packages do not allow. If you
want a free choice of configuration, e.g. to run mod_perl2 threaded, you
may have to rebuild the packages yourself or build from source.