Efficient support for content-based routing in web server clusters

Chu Sing Yang, Mon Yen Luo

Research output: Contribution to conferencePaperpeer-review

51 Citations (Scopus)


Clustered server architectures have been employed for many years on the Internet as a way to increase performance, reliability and scalability in the presence of the Internet's explosive growth. A routing mechanism for mapping requests to individual servers within cluster is at the heart of any server clustering techniques. In this paper, we first analyze the deficiencies of existing request-routing approaches. Based on these observations, we argue that the request routing mechanism in a cluster-based server should factor in the content of a request in making decisions. Thus, we designed and implemented a new mechanism to efficiently support content-aware routing in Web server clusters. With this mechanism, we also built in a number of sophisticated content-aware intelligence for making routing decision. Performance evaluation on a prototype implementation demonstrates substantial performance improvements over contemporary routing schemes. The proposed mechanism can also enable many new capabilities in cluster-based servers, such as sophisticated load balancing, differentiated service, special content deployment, session integrity, etc.

Original languageEnglish
Publication statusPublished - 1999
Event2nd USENIX Symposium on Internet Technologies and Systems, USITS 1999 - Boulder, United States
Duration: 1999 Oct 111999 Oct 14


Conference2nd USENIX Symposium on Internet Technologies and Systems, USITS 1999
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications


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