Description

ABSTRACT

The specifications of existing service level agreements (SLA) for cloud services aren’t designed to flexibly handle even comparatively simple performance and technical needs of client applications. During this article, we have a tendency to gift a completely unique approach for SLA-based management of cloud-hosted databases from the patron perspective. We tend to present an end-to-end framework for consumer-centric SLA management of cloud-hosted databases. The framework facilitates accommodative and dynamic provisioning of the info tier of the software package applications supported application-defined policies for satisfying their own SLA performance needs, avoiding value of any SLA violation and dominant the financial cost of the allotted computing resources. During this framework, the SLA of the patron applications ar declaratively outlined in terms of goals that are subjected to variety of constraints that ar specific to the applying needs. The framework unceasingly monitors the application-defined SLA and mechanically triggers the execution of necessary corrective actions (scaling out/in the info tier) once needed. The framework is info platform-agnostic, uses virtualization-based info replication mechanisms and needs zero ASCII text file changes of the cloud-hosted software package applications. The experimental results demonstrate the effectiveness of our SLA-based framework in providing the patron applications with the desired flexibility for achieving their SLA needs.