Zhang Lin¹, Li Xiao-ping², Su Yuan²

¹ School of Electricity and Information Engineering, BUCEA,
Beijing, 100044, China
zzcmeng0806@sina.com

² Department of Computer Science and Technology, Beijing Institute of Technology,
Beijing 100081, China
lxpmx@x263.net
 

Abstract. According to the different requests of Web and the heterogeneity of Web server, the paper presents a content-based load-balancing algorithm. The mechanism of this algorithm is that a corresponding request is allocated to the server with the lowest load according to the degree of effects on the server and a combination of load state of server. Besides, apply a method of random distributing base-probability to assign each request to an appropriate server in terms of their weight. All the parameters that will be used in the algorithm can be acquired by simulated test. Experimental results suggest that this algorithm can balance the load of web server clusters effectively, make full use of the existing source of software and hardware, highly improve the server's performance, and even make the best use of the web server.