Mod_perl error (package cannot be used)

I wish to use mod_perl on my server, since my wiki is terribly slow.

So, I installed mod_perl, modify foswiki.conf file and generate mod_perl startup script by means of http://foswiki.org/Support/ModPerlStartup

Unfortunately it crashes with following error:

tail /var/log/apache2/error.log<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />Use of uninitialized value in concatenation (.) or string at /var/lib/foswiki/tools/mod_perl_startup2.pl line 15.<br />[Wed Jun 17 11:12:10 2015] [error] This package can't be used under threaded MPMs at /usr/lib/perl5/ModPerl/RegistryPrefork.pm line 12.\nCompilation failed in require at /usr/lib/perl5/ModPerl/RegistryLoader.pm line 153.\nCompilation failed in require at (eval 2) line 1.\n

-- MateuszKDzior - 17 Jun 2015

Try the suggestion that is on the page you referenced:

# The registry module will be different (probably ModPerl::Registry) if you are not using the default prefork MPM
# Linux users can check using the command: apache2 -V | grep MPM
my $registrymodule = 'ModPerl::RegistryPrefork';

Your apache is configured for threaded processing, and the Prefork version of mod_perl doesn't support that.

-- GeorgeClark - 17 Jun 2015

Thank you, it works properly with 'ModPerl::Registry'

-- MateuszKDzior - 29 Jun 2015

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