Configure Apache for multiple instances of catalyst module in mod_perl

The trick was to:

use virtual hosts

PerlOptions +Parent to create a new interpreter

PerlModule instead of PerlLoadModule which caused apache to crash

NameVirtualHost *:80

<VirtualHost *:80 />

ServerName a.xyz.com

PerlOptions +Parent

PerlSwitches -IC:/mymodulea/lib -IC:/morestuff/lib

PerlModule MyModule

<Location />

SetHandler modperl

PerlResponseHandler MyModule

</Location>

</VirtualHost>

<VirtualHost *:80 />

ServerName b.xyz.com

PerlOptions +Parent

PerlSwitches -IC:/mymoduleb/lib -IC:/morestuff/lib

PerlModule MyModule

<Location />

SetHandler modperl

PerlResponseHandler MyModule

</Location>

</VirtualHost>

Update

Sorry to say I only got this working on Windows since DBD:Pg caused error on CentOS.