There are times when we found dead processes which doesnt seems to die off.
And it keeps accumulating and somehow reach its peak memory and dies off the server.
And you were spending many days of sleepless night trying to standby to restart the apache webserver every time it reaches its peak
Here is a solution:
Enable apache mod_status:
sudo a2enmod status
edit status.conf, and replace server-status with your secret url
sudo vi /etc/apache2/mods-available/status.conf
access your browser:
http://www.youdomain.com/server-status or yoursecreturl