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Co-ordinated Exception Handling in Distributed Object-Oriented Systems: Improved Algorithm, Correctness and Implementation

Lookup NU author(s): Professor Alexander Romanovsky, Professor Brian Randell

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Abstract

We address the problem of how to handle exceptions in distributed object-oriented systems. In a distributed computing environment exceptions may be raised simultaneously and thus need to be treated in a co-ordinated manner. We propose a new distributed algorithm for resolving concurrent exceptions and prove that the algorithm works correctly even in complex nested situations, and is an improvement over previous proposals in that it requires only O (nmax x N2) messages, and is fully object-oriented. We introduce a prototype implementation of the proposed resolution mechanism (including the related action supporting system) in Ada95 and present a brief analysis of implementation and performance-related issues.


Publication metadata

Author(s): Xu J, Romanovsky A, Randell B

Publication type: Report

Publication status: Published

Series Title: Department of Computing Science Technical Report Series

Year: 1997

Pages: 36

Report Number: 596

Institution: Department of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne

URL: .Co-ordinated Exception Handling in Distributed Object-Oriented Systems: Improved Algorithm, Correctness and Implementation


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