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Journal of Information Science and Engineering, Vol. 23 No. 3, pp. 803-819 (May 2007)

Building a Scalable Digital Learning System on Server Clusters*

Jiun-Huei Ho, Mon-Yen Lu** and Chu-Sing Yang
Department of Computer Science and Engineering
National Sun Yat-sen University
Kaohsiung, 804 Taiwan
Computer and Communications Research Labs
Industrial Technology Research Institute
Hsinchu, 310 Taiwan

This paper presents a scalable digital learning system that can store and provide Web access to digital contents from voluntaries, teachers, and institutions that lack resources or expertise to offer classes over the Internet. We use the server-cluster architecture as a way to create scalable and highly available solutions. However, hosting a variety of contents from different owners on such a distributed server system faces new design and management problems and requires new solutions. This paper describes the research work we are pursuing to construct a system that address the challenges faced by hosting learning content on a server farm environment. We also report performance data measured from such a production learning site.

Keywords: distance learning, e-learning, server cluster, web cluster, content management, scalability

Full Text () Retrieve PDF document (200705_09.pdf)

Received May 24, 2005; revised June 8, 2005; accepted June 20, 2005.
Communicated by H. Y. Mark Liao.
*This work was supported in part by the National Science Council of Taiwan, R.O.C., under grant No. NSC 93-2213-E-110-038.