check_memory.sh

#(crontab -l 2>/dev/null; echo "*/1 * * * * /root/check_memory.sh") | crontab -

free=$( free -g | grep "buffers/cache"  | awk '{print $4}')
if [ "$free" -le 100  ]
then
        echo "memory too high $free, killing `date`" | tee -a /var/log/memory_check.log
        ps aux --sort -rss | tee -a /var/log/memory_check.log
        pkill -9 python
else
        echo "memory ok $free free at `date`" | tee -a /var/log/memory_check.log
fi