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Coordinated exception handling in distributed object systems: from model to system implementation

Lookup NU author(s): Professor Alexander RomanovskyORCiD, Professor Brian RandellORCiD



Exception handling in concurrent and distributed programs is a difficult task though it is often necessary. In many cases traditional exception mechanisms for sequential programs are no longer appropriate. One major difficulty is that the process of handling an exception may need to involve multiple concurrent components that are cooperating in pursuit of some global goal. Another complication is that several exceptions may be raised concurrently in different nodes of a distributed environment. Existing proposals and actual concurrent languages either ignore these difficulties or only cope with a limited form of them. This paper attempts a general solution, developed especially for distributed object systems, starting from a conceptual model, together with algorithms for coordinating concurrent components and resolving multiple exceptions, through to an actual system implementation. An industrial production cell is chosen as a case study to demonstrate the usefulness of the proposed model and algorithms. A system that supports coordinated atomic actions and exception resolution is implemented in distributed Ada 95 and examined through several performance-related experiments.

Publication metadata

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

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 18th IEEE International Conference on Distributed Computing Systems (ICDCS)

Year of Conference: 1998

Pages: 12-21

Date deposited: 07/02/2011

ISSN: 1063-6927

Publisher: IEEE


DOI: 10.1109/ICDCS.1998.679465

Library holdings: Search Newcastle University Library for this item

ISBN: 0818682922