Auto restart Apache when high-load

Script: Auto restart Apache when high-load

1: Create check file:

cd /usr/local/
mkdir auto
cd auto
vi restart.sh

Paste script:

เช็คจาก Server Load

#!/bin/sh
check=`cat /proc/loadavg | sed 's/./ /' | awk '{print $1}'`
if [ $check -gt 10 ] //10 is load average on 5 minutes
then
/etc/init.d/httpd restart
fi

เช็คจาก http process

#!/bin/sh
check=`ps aux | grep 'httpd' | awk '{print $6;}' | awk '{avg += $1;} END {printf avg;}'`
if [ $check -gt 1000000 ]
then
/etc/init.d/httpd restart
printf $check
fi

Save and chmod script to 755:

chmod 755 restart.sh

2: Create cron file:

cd ~
cd /etc/cron.d
vi auto_restart

Paste script:

*/5 * * * * root /usr/local/auto/restart.sh >/dev/null 2>&1

Save cron file and finish.

ที่มา http://www.webhostingtalk.com/showthread.php?t=971304