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A Framework for Event Composition in Distributed Systems

  • Peter R. Pietzuch
  • Brian Shand
  • Jean Bacon
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2672)

Abstract

For large-scale distributed applications such as internet-wide or ubiquitous systems, event-based communication is an effective messaging mechanism between components. In order to handle the large volume of events in such systems, composite event detection enables application components to express interest in the occurrence of complex patterns of events. In this paper, we introduce a general composite event detection framework that can be added on top of existing middleware architectures — as demonstrated in our implementation over JMS. We argue that the framework is flexible, expressive, and easy to implement. Based on finite state automata extended with a rich time model and support for parameterisation, it provides a decomposable core language for composite event specification, so that composite event detection can be distributed throughout the system. We discuss the issues associated with automatic distribution of composite event expressions. Finally, tests of our composite event system over JMS show reduced bandwidth consumption and a low notification delay for composite events.

Keywords

Composite Event Input Stream Event Composition Event Source Distribution Policy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© IFIP International Federation for Information Processing 2003

Authors and Affiliations

  • Peter R. Pietzuch
    • 1
  • Brian Shand
    • 1
  • Jean Bacon
    • 1
  1. 1.University of Cambridge Computer LaboratoryCambridgeUK

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