SWARE: A Methodology for Software Aging and Rejuvenation Experiments

Matheus Torquato, Jean Araujo, I. M. Umesh, Paulo Maciel
2018 Journal of Information Systems Engineering & Management  
Reliability and availability are mandatory requirements for numerous applications. Technical apparatus to study system dependability is essential to support software deployment and maintenance. Software aging is a related issue in this context. Software aging is a cumulative process which leads systems with long-running execution to hangs or failures. Software rejuvenation is used to prevent software aging problems. Software rejuvenation actions comprise system reboot or application restart to
more » ... ication restart to bringing software to a stable fresh state. This paper proposes a methodology to conduct software aging and software rejuvenation experiments. The approach has three phases: (i) Stress Phase -stress environment with the accelerated workload to induce bugs activation; (ii) Wait Phase -stop workload submission to observe the system state after workload submission; (iii) Rejuvenation Phase -find the impacts caused by the software rejuvenation. We named our methodology as SWARE (Stress-Wait-Rejuvenation). To validate the SWARE methodology, we present a case study. This case study consists of an experiment of VM Live Migration as rejuvenation mechanism for VMM software aging. The considered testbed is a Private Cloud with OpenNebula and KVM 1.0. The obtained results show that VM live migration is useful as rejuvenation for VMM software aging.
doi:10.20897/jisem.201815 fatcat:ion33urkmzhsldf4k5abn6suvy