Why Optimistic Message Logging Has Not Been Used in Telecommunications Systems

  • Authors:

  • Yennun Huang;Yi-Min Wang

  • Affiliations:

  • -;-

  • Venue:
  • FTCS '95 Proceedings of the Twenty-Fifth International Symposium on Fault-Tolerant Computing
  • Year:
  • 1995

Quantified Score

Hi-index 0.01

Visualization

Abstract

Abstract: Much of the literature on message logging and checkpointing in the past decade has been based on a so-called optimistic approach that places more emphasis on failure-free overhead than recovery efficiency. Our experience has shown that most telecommunications systems use a pessimistic approach because the main purpose of using message logging and checkpointing is to achieve fast and localized recovery, and the failure-free overhead of a pessimistic approach can often be made reasonably low by exploiting application-specific information.