Journal of Computer Science

Optimal Rejuvenation Scheduling of Distributed Computation Based on Dynamic Programming

Hiroyuki Okamura, Kazuki Iwamoto and Tadashi Dohi

DOI : 10.3844/jcssp.2006.505.512

Journal of Computer Science

Volume 2, Issue 6

Pages 505-512

Abstract

Recently, a complementary approach to handle transient software failures, called software rejuvenation, is becoming popular as a proactive fault management technique in operational software systems. In this study, we develop the optimal scheduling algorithms to trigger software rejuvenation in distributed computation circumstance. In particular, we focus on two different computation circumstances in terms of detection of failures. Based on the dynamic programming, we derive the optimal software rejuvenation schedule which minimizes the expected total time of computation. In numerical examples, we examine the sensitivity of model parameters characterizing the failure phenomenon to the resulting optimal rejuvenation schedule.

Copyright

© 2006 Hiroyuki Okamura, Kazuki Iwamoto and Tadashi Dohi. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.