Research: Performance aspects of trading in open distributed systems

  • Authors:
  • A Wolisz;V Tschammer

  • Affiliations:
  • On leave from the Institute of Theoretical and Applied Informatics of the Polish Academy of Science, Gliwice, Poland;GMD FOKUS, Hardenbergplatz 2. D-1000 Berlin 12, Germany

  • Venue:
  • Computer Communications
  • Year:
  • 1993

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Abstract

We consider the case of trading in an environment of autonomous components. Trading is the process of matching a service request with the offers to support that particular service made by potential servers. In the case of multiple matching offers a selection of the most suitable server can be made according to the properties of the server. Among the possible selection policies we concentrate on those taking into account the actual load of the server. The selection process can be delegated to components of a special type, called traders. Various aspects influence the performance of the server selection process, including the delay of the load information, the selection strategy, the use or non-use of traders, and the number of concurrent traders, if any. We investigate several trading strategies in a scenario where the load information is broadcast periodically, and where multiple traders may operate concurrently.