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Scalable Load Balancing on Distributed Web Servers Using Mobile Agents

Lookup NU author(s): Dr Yudong Sun

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Abstract

Distributed web servers on the immensely expanding Internet require high scalability and availability to provide efficient services to millions of clients on the web. To provide rapid responses to enormous number of client requests, load balancing is an important technique to evenly distribute the requests to web servers. In this paper, we propose a framework called MALD (Mobile Agent based LoaD balancing) that uses mobile agents technology to implement scalable load balancing on distributed web servers. The web servers can dispatch mobile agents to retrieve load information from and accomplish load redistribution on all servers. Various load balancing policies can be incorporated with versatile mobile agents in the framework. Compared with the traditional message-passing based load balancing methods, the mobile-agent based approaches have the merits of high flexibility, low network traffic and high asynchrony. The performance evaluation demonstrates that the MALD framework provides a foundation to develop efficient load balancing schemes on wide range of web server systems from cluster to the Internet.

Publication metadata

Author(s): Cao J, Sun Y, Wang X, Das S

Publication type: Article

Publication status: Published

Journal: Journal of Parallel and Distributed Computing

Year: 2003

Volume: 63

Issue: 10

Pages: 996-1005

Date deposited: 14/02/2011

ISSN (print): 0743-7315

ISSN (electronic): 1096-0848

Publisher: Academic Press

URL: http://dx.doi.org/10.1016/S0743-7315(03)00099-6

DOI: 10.1016/S0743-7315(03)00099-6

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