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From Adam Prime <>
Subject Re: Multiple mod_perl 2.0 installations on one Linux machine
Date Mon, 19 Jan 2009 18:45:38 GMT
Perrin Harkins wrote:
> On Mon, Jan 19, 2009 at 1:37 PM, Adam Prime <> wrote:
>> Perrin Harkins wrote:
>>> Hmm, isn't the MPM just a runtime configuration?  Why would you need
>>> another httpd install?  It sounds like a separate config file would do
>>> it, if that's all you want to change.
>> MPM is a build time configuration via the --with-mpm= to ./configure
> I thought you could build more than one and load the one you want at
> runtime.  Isn't that what Red Hat does?

If redhat's shipping more than one mpm, they've patched httpd. 
According to the 2.2 docs, you have to choose exactly one MPM:


     Choose the process model for your server. You have to select 
exactly one Multi-Processing Module. Otherwise the default MPM for your 
operating system will be taken. Possible MPMs are beos, mpmt_os2, 
prefork, and worker.


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