Cross-layer SLA Selection for Cloud Services

Kouki, Yousri; Ledoux, Thomas; Sharrock, Rémi

doi:10.1109/ncca.2011.30

Cited by 13 publications

(7 citation statements)

References 7 publications

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“…Should an SLA breach occur, the provider is obligated to pay an agreed upon monetary sum to the tenant [12]. In our case, when the actual response time is found to be greater than the threshold defined in the SLA, there exists an SLA violation.…”

Section: Region Subregionmentioning

confidence: 98%

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A Performance and Profit Oriented Data Replication Strategy for Cloud Systems

Tos

Mokadem

Hameurlain

et al. 2016

2016 Intl IEEE Conferences on Ubiquitous Intelligence &Amp; Computing, Advanced and Trusted Computing, Scalable Computing and C

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 18792The contribution was presented at CBDCom 2016 :https://cbdcom2016.sciencesconf.org/ Abstract-In today's world, tenants of cloud systems expect timely responses to queries that process ever-increasing sizes of data. However, most cloud providers offer their services without any performance guarantees to their tenants. In this paper we propose a data replication strategy that aims to satisfy performance guarantees for the tenant while ensuring profitability of the cloud provider. Our strategy estimates the response time of the queries, as well as the expenditures that affect the profitability of the cloud provider. The decision of whether to perform replication is determined by the fulfillment of these two criteria. Validity of the proposed strategy is provided by means of a simulation study.

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Section: Region Subregionmentioning

confidence: 98%

“…response time, are not offered by cloud providers as a part of the SLA. In order to resolve this issue, there are several works proposed [12], [13] in the literature to include the response time guarantees in the SLA. Dealing with data replication, only a few studies are particularly interested in improved response time [14]- [17].…”

Section: Introductionmentioning

confidence: 99%

A Performance and Profit Oriented Data Replication Strategy for Cloud Systems

Tos

Mokadem

Hameurlain

et al. 2016

2016 Intl IEEE Conferences on Ubiquitous Intelligence &Amp; Computing, Advanced and Trusted Computing, Scalable Computing and C

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“…There are many evaluation methods for cloud service: service transactions [5], cloud storage [6,7], cloud application [8], and cloud security [9,10]. A trust mining model for identifying trusted cloud services when negotiating a Service-Level Agreement (SLA) is proposed [11].…”

Section: Related Workmentioning

confidence: 99%

A Cloud Service Trust Evaluation Model Based on Combining Weights and Gray Correlation Analysis

Wang

Wen

Wang

et al. 2019

Security and Communication Networks

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Cloud services are cloud computing resources and applications deployed on the Internet or cloud computing platform, and users can access the required cloud services at any time. However, users face the diversity and complexity of quality of service (QoS) when evaluating and selecting cloud services. Therefore, it is important to study and establish an effective and objective trust model to improve user satisfaction and interaction success rate. In this paper, a model based on combining weights and gray correlation analysis is proposed. Firstly, direct trust, recommendation trust, and reputation together form a comprehensive trust, resulting in a more accurate overall trust. Second, rough set theory and analytic hierarchy process (AHP)-based method are used for the direct trust. Meanwhile, the degree of similarity recommendation trust is calculated by a gray relational analysis method. In order to ensure the accuracy of direct trust, this paper proposes a dynamic trust update mechanism. Finally, the simulation experiment is carried out to verify that the cloud services trust evaluation model (CSTEM) is more robust than the other three methods. It protects against malicious entities; at the same time, it can increase user satisfaction and interaction success rate.

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“…On the other hand, satisfying performance objectives has been comparatively a less visited issue with only a handful of studies being particularly interested in improved performance [4,12,37,39]. This may be particularly attributed to the lack of performance guarantees being a de facto part of the SLA until recently [16,28]. Moreover, even fewer of the proposed strategies consider the economic impact of data replication on the cloud provider [7,10].…”

Section: Data Replication Without Considering Economic Impactmentioning

confidence: 99%

“…On the other hand, it is more difficult to keep track of SLA breaches from the tenant's perspective. Usually the provider monitors the quality of the service, and when the service quality falls below a threshold, provider pays a monetary sum to the tenant [16]. Obviously this approach involves a certain amount of trust between the parties.…”

Section: Response Time Estimationmentioning

confidence: 99%

Ensuring performance and provider profit through data replication in cloud systems

et al. 2017

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Cloud computing is a relatively recent computing paradigm that is often the answer for dealing with large amounts of data. Tenants expect the cloud providers to keep supplying an agreed upon quality of service, while cloud providers aim to increase profits as it is a key ingredient of any economic enterprise. In this paper, we propose a data replication strategy for cloud systems that satisfies the response time objective for executing queries while simultaneously enables the provider to return a profit from each execution. The proposed strategy estimates the response time of the queries and performs data replication in a way that the execution of any particular query is still estimated to be profitable for the provider. We show with simulations that how the proposed strategy fulfills these two criteria.

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Cross-layer SLA Selection for Cloud Services

Cited by 13 publications

References 7 publications

A Performance and Profit Oriented Data Replication Strategy for Cloud Systems

A Performance and Profit Oriented Data Replication Strategy for Cloud Systems

A Cloud Service Trust Evaluation Model Based on Combining Weights and Gray Correlation Analysis

Ensuring performance and provider profit through data replication in cloud systems

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