Resilient and performance-guaranteed composite services in cloud computing
by Kaiqi Xiong; Harry Perros
International Journal of Cloud Computing (IJCC), Vol. 3, No. 4, 2014

Abstract: Services offered by different cloud service providers can be federated into composite services that can execute a variety of tasks subject to a service level agreement (SLA). An SLA is defined as quality of service (QoS) metrics and a fee. In this paper, we consider the QoS metrics: trustworthiness, percentile response time, and vulnerability. The percentile response time metric is a statistical bound stating that the end-to-end response time is less than a given bound for a certain percent of time. We first describe an efficient and accurate numerical solution for the calculation of the percentile response time. Then, we consider all these QoS metrics in a resilient and performance-guaranteed cloud service composition problem that typically arises in inter cloud computing. We present a framework for tackling the SLA-guaranteed cloud service composition problem in which an optimisation problem subject to QoS constraints is solved using an efficient numerical approach.

Online publication date: Wed, 14-Jan-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Cloud Computing (IJCC):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com