Modeling and cost analysis of nested software rejuvenation policy

Authors:
Jing You;Jian Xu;Xue-long Zhao;Feng-yu Liu
Affiliations:
Department of Computer, Nanjing University of Science and Technology, Nanjing, China;Department of Computer, Nanjing University of Science and Technology, Nanjing, China;Department of Computer, Nanjing University of Science and Technology, Nanjing, China;Department of Computer, Nanjing University of Science and Technology, Nanjing, China
Venue:
ICNC'05 Proceedings of the First international conference on Advances in Natural Computation - Volume Part III
Year:
2005

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Abstract

To counteract software aging, a new nested software rejuvenation policy is put forward in this paper. Comparing to the conventional periodic software rejuvenation policy, the nested policy takes into account the application-level and system-level rejuvenation simultaneously and executes N times application-level rejuvenation before system-level rejuvenation. If any application-level rejuvenation is not executed successfully, then the system has to be rebooted directly. Comparing the minimum average rejuvenation cost per year and the maximum system availability of the nested software rejuvenation policy with the conventional periodic software rejuvenation policy's, the results demonstrate that the new policy consumes less downtime and lower rejuvenation cost, and enhances software availability and reliability.