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Optimal Trigger Time of Software Rejuvenation under Probabilistic Opportunities

Hiroyuki OKAMURA, Tadashi DOHI

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Summary :

This paper presents the opportunity-based software rejuvenation policy and the optimization problem of software rejuvenation trigger time maximizing the system performance index. Our model is based on a basic semi-Markov software rejuvenation model by Dohi et al. 2000 under the environment where possible time, called opportunity, to execute software rejuvenation is limited. In the paper, we consider two stochastic point processes; renewal process and Markovian arrival process to represent the opportunity process. In particular, we derive the existence condition of the optimal trigger time under the two point processes analytically. In numerical examples, we illustrate the optimal design of the rejuvenation trigger schedule based on empirical data.

Publication
IEICE TRANSACTIONS on Information Vol.E96-D No.9 pp.1933-1940
Publication Date
2013/09/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E96.D.1933
Type of Manuscript
Special Section PAPER (Special Section on Dependable Computing)
Category

Authors

Hiroyuki OKAMURA
  Hiroshima University
Tadashi DOHI
  Hiroshima University

Keyword