Fault Tolerance by Transparent Replication for Distributed Ada 95

  • Authors:
  • Thomas Wolf;Alfred Strohmeier

  • Affiliations:
  • -;-

  • Venue:
  • Ada-Europe '99 Proceedings of the 1999 Ada-Europe International Conference on Reliable Software Technologies
  • Year:
  • 1999

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Abstract

This paper presents the foundations of RAPIDS ("Replicated Ada Partitions In Distributed Systems"), an implementation of the Distributed Systems Annex E incorporating the transparent replication of partitions in distributed Ada 95 applications. RAPIDS is a replication manager for semi-active replication based on a piecewise deterministic computation model. It guarantees replica consistency for arbitrary Ada 95 partitions despite the inherent non-determinism of multitasking, offering k-resilient partitions. The RAPIDS prototype is implemented for the GNAT compiler and evolved from its PCS, Garlic.