#!/usr/bin/env bash
# Author:  Oliver Ladner <oli@lugh.ch>
# License: LGPL
#
# Monitors if lighttpd uses too much mem, and if so, restarts it

# 100MB
MAXRAM=200000

while true; do
CHECK=$(ps auxww | grep 'lighttpd -f' | grep -v grep | awk '{print $6}')
sleep 5

	if [ $CHECK -gt $MAXRAM ]; then
		logger "lighttpd OOM ($CHECK KB used)"
		/etc/init.d/lighttpd stop
		sleep 15
		/etc/init.d/lighttpd start
		sleep 5
	elif [ -z $CHECK ]; then
		logger "lighttpd not running, starting"
		/etc/init.d/lighttpd start
		sleep 15
	else
		logger "lighttpd normal ($CHECK KB used)"
	fi
done