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Achieving high performance web applications by service and database replications at edge servers

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4 Author(s)
Wei Hao ; Dept. of Comput. Sci., Northern Kentucky Univ., KY, USA ; Jicheng Fu ; I-Ling Yen ; Zhonghang Xia

Edge server replication is an effective solution to achieve high performance in dynamic web applications, such as Web services. Many Web services involve frequent accesses to large-scale backend databases. Current database replication techniques are not directly applicable to edge server architectures. There is no algorithm to dynamically and automatically select the tables for replication. Also, most of the solutions do not consider the potentially limited disk sizes at the edge servers and the needs for them to serve many application sites. In this paper, we present a novel weighted table graph based database replication approach for edge servers to address these problems. Every step in our approach is based on quantitative computation, so it can generate an accurate result. Experimental studies show that our database replication approach significantly improves the performance of Web systems in terms of client response latency, Web application server off loading, and network bandwidth saving.

Published in:

Performance Computing and Communications Conference (IPCCC), 2009 IEEE 28th International

Date of Conference:

14-16 Dec. 2009