SWITCHING APACHE FROM PREFORK TO WORKER MPM IN RHEL / CENTOS 5.X / FEDORA 13

1-install-dependencies.sh

yum install libtool httpd-devel apr-devel apr

10-apache-error.log

[notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[notice] Apache/2.2.15 (Unix) DAV/2 mod_fcgid/2.3.5 PHP/5.3.2 configured

2-backup-apache-vhosts-disable-php.sh

cp /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.bak
mv /etc/httpd/conf.d/php.conf /etc/httpd/conf.d/php.conf.disable

3-mpm-module-line.conf

LoadModule php5_module modules/libphp5-zts.so

4-yum-search-install-zts.sh

yum search zts
yum install php-zts mod_fcgid

5-fastcgi-variables.conf

# The Communication timeout; your new max execution time variable
# The default is 20 seconds if omitted
IPCCommTimeout 60

# Connection timeout: Default value is 3 seconds
IPCConnectTimeout 3

6-php-fcgid.conf

<IfModule mod_fcgid.c>
    # Path to directory containing php.ini
    DefaultInitEnv PHPRC=/etc/

    # Number of PHP children that will be launched.
    #DefaultInitEnv PHP_FCGI_CHILDREN 3

    # Maximum requests before a process is stopped and a new one is launched.
    #DefaultInitEnv PHP_FCGI_MAX_REQUESTS 5000

    # Define a new handler "php-fcgi" for ".php" files
    AddHandler php-fcgi .php

    # Add an action binding the new handler to an alias (see below)
    Action php-fcgi /fcgi-bin/phpfcgi

    # Define the MIME-Type for ".php" files
    AddType application/x-httpd-php .php

    # Define alias "/fcgi-bin/" used by the action above.
    # Allows you to run a different command by overriding alias in vhosts
    Alias /fcgi-bin/ /var/www/cgi-bin/

    # Turn on the fcgid-script handler for all files within the alias "/fcgi-bin/"
    <Location /fcgi-bin/>
        SetHandler fcgid-script
        Options +ExecCGI
    </Location>
</IfModule>

7-phpfcgi-symlink.sh

ln -s /usr/bin/php-cgi /var/www/cgi-bin/phpfcgi

8-enable-apache-worker.conf

#HTTPD=/usr/sbin/httpd.worker

9-restart-apache.sh

# service httpd restart
# apachectl graceful
/etc/init.d/httpd restart

# check log files to ensure a successful restart
# press ctrl+z to get out
tail -f /var/log/httpd/error.log