Proposta para Atualização de SGBDs para Aplicações com Demanda de Contínua Disponibilidade usando Suporte do Modelo de Componentes de Software

• Cleandro Flores De Gaperi UFSM
• Marcia Pasin UFSM

DOI: https://doi.org/10.5753/wtf.2013.23012

Abstract

Database management system (DBMS) is a critical part in enterprise software and its on-the-fly updating is not trivial due its inherent complexity and requirements such as continuous availability. Current solutions to enterprise software update are costly and involve human intervention. In this paper, we propose the use of component model as a support to achieve continuous availability in dynamic software update (DSU) in DBMS. The component model allows to encapsulate implementation details, which is an interesting property to software replacement. This solution provides as benefits the absence of additional hardware and reduced service unavailability. To validate our proposal, a prototype was developed using Fractal component model. The experimental evaluation confirms the effectiveness of our approach but, as expected, indicates that the component model itself is still a bottleneck.

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