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http://dx.doi.org/10.3745/KIPSTA.2003.10A.6.615

Load Control Mechanism for Real-Time Web Server Systems Based on Feedback Control Theory  

Kang, Bong-Jik (동양공업전문대학 전산경영기술공학부)
Jung, Suk-Yong (동양공업전문대학 전산경영기술공학부)
Kim, Young-Il (아주대학교 컴퓨터공학과)
Choi, Kyung-Hee (아주대학교 정보 및 컴퓨터공학부)
Jung, Gi-Hyun (아주대학교 전자공학부)
Yoo, Hae-Young (단국대학교 정보컴퓨터학부)
Abstract
This paper proposes a mechanism for managing overload Introduced by excessive web requests in real-time web service system. The many previous mechanisms statically manage the overload and thus the dynamic characteristics are not reflected. This paper proposes a mechanism that models system load based on control theory approach and includes its dynamic characteristics. We design a controller that is able to meet performance requirement. A feedback control system is implemented applying the proposed mechanism and the stable operation of system is verified through various simulation environments.
Keywords
Control Theory; Real-Time Web Service; Load Control; System Identification; Packet Acception Ratio; Feedback Control System;
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