监控http进程所占内存过高重启httpd

erawrq

#!/bin/sh
# crontab usage: */2 * * * * /home/http_restart.sh >> /backup/restart_apache.log

MIN_RAM=3200
FREE_RAM=`free -m| grep Mem|awk '{print $4}'`
echo $(date +"%y-%m-%d") `uptime`
if [ `echo "$FREE_RAM < $MIN_RAM"|bc` -eq 1 ]
then
    echo "#0#" $(date +"%y-%m-%d %H:%M:%S") "pkill httpd" `ps -ef | grep httpd | wc -l`
    /etc/init.d/httpd stop
    sleep 5
    pkill httpd
    sleep 5
    for i in 1 2 3
    do
        if [ `pgrep httpd | wc -l` -le 0 ]
        then
          /etc/init.d/httpd start
          sleep 10
          echo "#1#" $(date +"%y-%m-%d %H:%M:%S") "start httpd" `ps -ef | grep httpd | wc -l`
        fi
    done
fi