How do I use PHP over FastCGI with more than 6 FCGI child processes?

Question

I would like to use PHP with FastCGI as described in the documentation. But my site is very busy, and 6 child processes isn't enough. How can I configure my app to use more processes?

Accepted Answer

Because Webfaction only provides handlers for 1-6 child processes, you'll need to create your own handler script based off the ones found in /home/php-cgi/ on your server.

In the root directory of your app, place two files. In this example we'll be using PHP 5.4 and creating 12 child processes.

php54-fcgi-custom.fcgi

#!/bin/sh

PHPRC="/usr/local/lib/php54"
export PHPRC
export PHP_FCGI_CHILDREN=12
export PHP_FCGI_MAX_REQUESTS=500
exec /home/php-cgi/php54.fcgi

.htaccess

<FilesMatch \.php$>
    SetHandler php54-fcgi-custom
    Action php54-fcgi-custom /php54-fcgi-custom.fcgi
</FilesMatch>

Make sure your .fcgi handler is set executable:

chmod +x php54-fcgi-custom.fcgi

Now, load your app and you should see 12 php54.fcgi processes appear in the output of ps -u <username> -o etime,pid,command | grep php54.fcgi

How do I use PHP over FastCGI with more than 6 FCGI child processes?

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