Modeling and performance analysis of QoS-aware load balancing of web-server clusters

  • Authors:
  • Zhiguang Shan;Chuang Lin;Dan C. Marinescu;Yang Yang

  • Affiliations:
  • Department of Computer Science and Technology, Tsinghua University, Beijing, China;Department of Computer Science and Technology, Tsinghua University, Beijing, China;School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, FL;Information Engineering School, University of Science and Technology Beijing, Beijing, China

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2002

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Abstract

This paper introduces mechanisms to correlate contents and priorities of incoming HTTP requests used for server process scheduling with the load balancing policies for Web-server clusters. This approach enables both load balancing and Web quality of service (QoS). Another contribution is a modeling and analysis technique based on stochastic high-level Petri net methods for QoS-aware load balancing. We propose an approximate analysis technique to reduce the complexity of the model.