High availability load balancing clustering Apache with "Ultra Monkey"

Load balance, so-called load distribution. A variety of story saying that using "Ultra Monkey" which is an open source software group without using commercial cluster software will do something.

How To Set Up A Loadbalanced High-Availability Apache Cluster | HowtoForge - Linux Howtos and Tutorials

It is a mechanism of load balancing by combining two Apache nodes and two load balancer nodes.
Ultra Monkey:
http://www.ultramonkey.org/

Ultra Monkey: (Japanese version)
http://ultramonkey.jp/

SourceForge.jp: Project Info - Ultra Monkey
http://sourceforge.jp/projects/ultramonkey/

The easy-to-understand article in Japanese is below.

Make a reliable web server - NetPerfect
http://www.netperfect.co.jp/52.html

[Ultra Monkey] Redundancy and load balancing - Young risk taker.
http://blog.drecom.jp/gakkun/archive/77

Also, if you do not wish to do so far, but want to do some load balancing easily, the following article using the Apache Rewrite module is helpful. Even with a shared server, this method could load distribution at low cost.

Construction of transfer amount distributed Web cluster / server system
http://www.gem.hi-ho.ne.jp/webcluster/