QoS-aware discovery of wide-area distributed services

Dongyan Xu, Klara Nahrstedt, Duangdao Wichadakul

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Global computational grids bring together distributed computation/ communication resources. Beyond this, we envision the emergence of global 'service grids', which provide a 'market' of application-level distributed services for clients to discover and to request. We study the issue of wide-area service discovery in service grids. We start with an existing basic wide-area service discovery framework. The framework adopts a scalable architecture consisting of a hierarchy of Discovery Servers. We then identify problems with the basic framework, and propose our enhancement of query responsiveness and QoS awareness. The key techniques we introduce include: (1) the addition of QoS feedback capability to clients; and (2) the caching and propagation of discovery results with QoS feedback in the discovery server hierarchy. With these techniques, the enhanced service discovery framework will be faster in finding qualified service providers. Furthermore, it will select a 'good' (with respect to the QoS to be delivered) service provider for each querying client, based on QoS feedback.

Original languageEnglish (US)
Title of host publicationProceedings - 1st IEEE/ACM International Symposium on Cluster Computing and the Grid, CCGrid 2001
Pages92-99
Number of pages8
DOIs
StatePublished - 2001
Event1st IEEE/ACM International Symposium on Cluster Computing and the Grid, CCGrid 2001 - Brisbane, QLD, Australia
Duration: May 15 2001May 18 2001

Publication series

NameProceedings - 1st IEEE/ACM International Symposium on Cluster Computing and the Grid, CCGrid 2001

Other

Other1st IEEE/ACM International Symposium on Cluster Computing and the Grid, CCGrid 2001
CountryAustralia
CityBrisbane, QLD
Period5/15/015/18/01

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Software
  • Electrical and Electronic Engineering

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