# Php-fpm / nginx random php lock ups php 5.3.10 w/ nginx 1.0.12

**URL:** <https://www.ruby-forum.com/t/php-fpm-nginx-random-php-lock-ups-php-5-3-10-w-nginx-1-0-12/218162>\
**Category:** NGINX\
**Created:** [March 22, 2012, 8:21pm UTC](https://www.ruby-forum.com/t/php-fpm-nginx-random-php-lock-ups-php-5-3-10-w-nginx-1-0-12/218162 "2012-03-22T20:21:00Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\
**Post date:** [March 22, 2012, 8:21pm UTC](https://www.ruby-forum.com/t/php-fpm-nginx-random-php-lock-ups-php-5-3-10-w-nginx-1-0-12/218162/1 "2012-03-22T20:21:00Z")

</div>

hi guys, i have a problem.

i have a high end server - dual quad core xeons, 16 gb ram, 4 x 120 gb  
ssd’s in raid 10, and a gigabit pipe. i only host 1 site on it, and from  
time to time the php simply locks up, restarts, and during that time,  
the users experience 5-10 seconds load times on pages.

i have around 1000 1500 concurrent users at peak times on the website.

here’s what happens in the php-fpm.log:

[http://pastebin.ca/2131186](http://pastebin.ca/2131186)

some of those scripts that you see as executing slow, are like 4 - 5  
lines of code, so it’s pretty impossible to be a coding issue.

here is my php-fpm.conf:

[http://pastebin.ca/2131189](http://pastebin.ca/2131189)

if you guys couuld help me shed some light on this i would much  
appreciate.