Posts Tagged ‘502 Bad Gateway’

13th April
2011
written by simplelight

If you’re getting 502 Bad Gateways from your WordPress site when using Nginx then the following cron job might help:

Add a .sh script with this content and set it to trigger every ten minutes:

#!/bin/bash
PHPCOUNT=`ps aux | grep ‘.php.sock’ | grep ‘php5.cgi’ | wc -l`
echo $PHPCOUNT
while [ "$PHPCOUNT" -eq 0 ]
do
/etc/init.d/nginx startphp
PHPCOUNT=`ps aux | grep ‘.php.sock’ | grep ‘php5.cgi’ | wc -l`
done

That should check the number of processes, and if it’s not correct restart them.

The script is /root/nginx_php.sh

The cronjob is installed under root, and this is the content:

ps19952:/var/spool/cron/crontabs# crontab -l
MAILTO=”"
*/10     *       *       *       *       /bin/sh /root/nginx_php.shps19952:/var/spool/cron/crontabs#