Web server QoS management by adaptive content delivery

Tarek Abdelzaher, Nina Bhatti

Research output: Book/Report/Conference proceedingTechnical report

Abstract

The Internet is undergoing substantial changes from a communication and browsing infrastructure to a medium for conducting business and selling a myriad of emerging services. The World Wide Web provides a uniform and widely-accepted application interface used by these services to reach multitudes of clients. These changes place the web server at the center of a gradually emerging e-service infrastructure with increasing requirements for service quality, reliability, and security guarantees in an unpredictable and highly dynamic environment. Towards that end, we introduce a web server QoS provisioning architecture for performance differentiation among classes of clients, performance isolation among independent services, and capacity planning to provide QoS guarantees on request rate and delivered bandwidth. We present a new approach to web server resource management based on web content adaptation. This approach subsumes traditional admission control based techniques and enhances server performance by selectively adapting content in accordance with both load conditions and QoS requirements. Our QoS management solutions can be implemented either in middleware transparent to the server or by direct modification of the server software. We present experimental data to illustrate the practicality of our approach.

Original languageEnglish (US)
PublisherHewlett-Packard Laboratories
Edition161
StatePublished - 1999

Publication series

NameHP Laboratories Technical Report
No.HPL-1999-161

Keywords

  • Internet
  • QoS
  • Web server

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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    Abdelzaher, T., & Bhatti, N. (1999). Web server QoS management by adaptive content delivery. (161 ed.) (HP Laboratories Technical Report; No. HPL-1999-161). Hewlett-Packard Laboratories.