Title: Availability assessment and sensitivity analysis of an MBaaS platform

Authors: Francisco Airton Silva; Antonio Carvalho; José Miqueias; Jorge Macedo; Juliana Carvalho; Gustavo Callou

Addresses: Universidade Federal do Piauí, Piauí, Brazil ' Universidade Federal do Piauí, Piauí, Brazil ' Universidade Federal do Piauí, Piauí, Brazil ' Universidade Federal do Piauí, Piauí, Brazil ' Universidade Federal do Piauí, Piauí, Brazil ' Universidade Federal Rural de Pernambuco, Piauí, Brazil

Abstract: The OpenMobster platform offers services for the mobile cloud in a complete way. However, OpenMobster's availability requires attention. Analytical models are usually used to evaluate the dependability of a system, enabling the reduction of downtime and other advantages. This work proposes a set of stochastic Petri net models focused on evaluating the availability and reliability of the MBaaS OpenMobster platform. A sensitivity analysis was performed to identify the system's most critical components. The base model obtained an availability considered low, 96.8%. An extended cold-standby model with server redundancy was implemented, resulting in a better availability, 97.09%. Due to the low significant increase in availability, another redundancy strategy was applied to the MBaaS service model. A self-healing technique was used, which presented the best availability among the three proposed models with 99.91%.

Keywords: OpenMobster; dependability; MBaaS; cloud; downtime; mobile cloud.

DOI: 10.1504/IJCSE.2024.138418

International Journal of Computational Science and Engineering, 2024 Vol.27 No.3, pp.326 - 340

Received: 14 Nov 2022
Accepted: 23 Jun 2023
Published online: 03 May 2024 *

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