Monitoring distributed systems

  • Authors:
  • Jeffrey Joyce;Greg Lomow;Konrad Slind;Brian Unger

  • Affiliations:
  • Univ. of Cambridge, Cambridge, UK;Univ. of Calgary, Calgary, Alberta, Canada;Univ. of Calgary, Calgary, Alberta, Canada;Univ. of Calgary, Calgary, Alberta, Canada

  • Venue:
  • ACM Transactions on Computer Systems (TOCS)
  • Year:
  • 1987

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Abstract

The monitoring of distributed systems involves the collection, interpretation, and display of information concerning the interactions among concurrently executing processes. This information and its display can support the debugging, testing, performance evaluation, and dynamic documentation of distributed systems. General problems associated with monitoring are outlined in this paper, and the architecture of a general purpose, extensible, distributed monitoring system is presented. Three approaches to the display of process interactions are described: textual traces, animated graphical traces, and a combination of aspects of the textual and graphical approaches. The roles that each of these approaches fulfill in monitoring and debugging distributed systems are identified and compared. Monitoring tools for collecting communication statistics, detecting deadlock, controlling the non-deterministic execution of distributed systems, and for using protocol specifications in monitoring are also described.Our discussion is based on experience in the development and use of a monitoring system within a distributed programming environment called Jade. Jade was developed within the Computer Science Department of the University of Calgary and is now being used to support teaching and research at a number of university and research organizations.