If you do a top on your Docker host, you may find a process for apache2 is PID 1234 but that is not the same as ID as in your container due to separation of processes and memory from the main host. Here is how you find the real PID within the docker container. On your host do this where 1234 is your PID. cat /proc/1234/status|grep NSpid NSpid: 1234 125172 ........

Load Balancing/ClusteringAn interesting article that discusses the pros, cons and viability of load balancing/clustering http://www.wwwcoder.com/main/parentid/493/site/4189/68/default.aspx ZoneEdit seems to offer an interesting Fail Over Service as well: http://www.zoneedit.com/doc/faq.html#fo........