Nginx: 500 ISE or 24: Too Many Open Files Error

Source: http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/

options are you can disable nginx or change the configuration. What is Does?

nginx comes with plesk, it serves the static files and hands .php requests off to apache

you can also disable nginx by running:

# /usr/local/psa/admin/bin/nginxmgr -d