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Lookup NU author(s): Professor Brian Randell
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Roll-forward checkpointing schemes are developed in order to avoid rollback in the presence of independent faults and to increase the probability that a task completes within a tight deadline. However, despite of the adoption of roll-forward recovery, these schemes are not necessarily appropriate for time-critical applications because interactions with the external environment and communications between processes must be deferred during checkpoint validation steps (typically, two checkpoint intervals) until the fault-free processors are identified. The deadlines on providing services may thus be violated. In this paper we present and discuss two roll-forward recovery schemes, especially for time-critical and interaction-intensive applications, that deliver correct timely results even when checkpoint validation is required.
Author(s): Xu J, Randell B
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: International Conference on Parallel and Distributed Systems (ICPADS)
Year of Conference: 1996
Publisher: IEEE Computer Society Press
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