A Performance Isolation Technique Ensuring SLA of Web Systems Having Primary-backup Web Switch

C. Kang, K. Park, and Sungsoo Kim (Korea)


SLA, Primary-backup Web Switch, Performance Isolation


1 In this paper, we study the availability of primary-backup web switch that distributes the requests of clients to each web servers, and according to the types of the request of the clients in the web systems, to ensure SLA (Service Level Agreement) between service provider and the clients is considered, we also study performance isolation technique of heterogeneous cluster-based web systems, which distinguish the web servers into each different function domains. We analyze the availability, the response time considering SLA, and evaluate the performance of the proposed technique through various simulated experiments.

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