A load balancing model for web cache proxy based on ant colony behavior

Proxy cache which is an important device to guarantee the quality of Web service works with a poor efficiency when hot-spot appears. To solve this problem, load balancing method should be applied. In this paper, a load balancing model based on ant colony behavior is put forward. In the model, agent monitors the status of proxy server it has been installed on. Based on that status, if it judges that the server is busy by hot-spot, the agent asks for help to agents on other servers. Then other servers will form cooperation according to status of themselves to share the requests caused by hot-spot, which can balance the load of system. The main idea of the model is described and the algorithm for load balancing of the model is introduced. The results of related experiments show that the model has a good ability of load balancing and storage space saving.