Really hit a wall on this one. I've been trying to configure Nginx to handle both static content and proxy to PHP-FPM. But, all my load tests (using ab) continue to cause the PHP-FPM process to crash.
This occurs even if I am not requesting a PHP file (css or image) during the load test. I've read everything I can find on configuring Nginx, but I must be missing something.
This is running on a rather beefy web server, with 8 cores, 16gb of RAM and I've only been testing 500 concurrent users.
This is nginx/1.0.12 on RHEL.
Here is my Nginx config: http://pastebin.com/fcUVPa6n