Blockchain-enabled real-time SLA monitoring for cloud-hosted services

Abstract

Cloud computing is an important technology for businesses and individual users to obtain computing resources over the Internet on-demand and flexibly. Although cloud computing has been adopted across diverse applications, the owners of time-and-performance critical applications require cloud service providers’ guarantees about their services, such as availability and response times. Service Level Agreements (SLAs) are a mechanism to communicate and enforce such guarantees typically represented as service level objectives (SLOs), and financial penalties are imposed on SLO violations. Due to delays and inaccuracies caused by manual processing, an automatic method to periodically verify SLA terms in a transparent and trustworthy manner is fundamental to effective SLA monitoring, leading to the acceptance and credibility of such service to the customers of cloud services. This paper presents a blockchain-based distributed infrastructure that leverages fundamental blockchain properties to achieve immutable and trustworthy SLA monitoring within cloud services. The paper carries out an in-depth empirical investigation for the scalability of the proposed system in order to address the challenge of transparently enforcing real-time monitoring of cloud-hosted services leveraging blockchain technology. This will enable all the stakeholders to enforce accurate execution of SLA without any imprecisions and delays by maintaining an immutable ledger publicly across blockchain network. The experimentation takes into consideration several attributes of blockchain which are critical in achieving optimum performance. The paper also investigates key characteristics of these factors and their impact to the behaviour of the system for further scaling it up under various cases for increased service utilization.

Solução de Monitoramento e Conformidade de SLA Baseada em Blockchain para Fatiamento de Recursos

“…Nesta Seção, são apresentados os trabalhos principais que possuem relação com a proposta apresentada nesse trabalho. Khan et al (2022) apresentam uma infraestrutura distribuída baseada em blockchain que aproveita suas propriedades fundamentais para obter monitoramento de SLA imutável e confiável nos serviços em nuvem. O artigo conduz uma investigação empírica aprofundada sobre a escalabilidade do sistema proposto para enfrentar o desafio de aplicar de forma transparente o monitoramento em tempo real de serviços hospedados na nuvem [Khan et al 2022].…”

Methodology of the Blockchain Monitoring Framework

“…• A visualization platform connected to the broker-agent consumes the data collected by the nodes and provides statistics on the efficiency of the blockchain nodes and the network overview [17].…”

A security services for internet of thing smart health care solutions based blockchain technology

“…Even a minor alteration in a single transaction would result in a new hash, resulting in a mismatch between the hash of that transaction and the hash of the nearby block. Blockchain technology allows businesses that do not trust one another to exchange transactions and information without the involvement of a third party [32]. Blockchain technology is distinguished by characteristics such as decentralization, security, transparency, redundancy, and reputation, as well as traceability, all of which provide value to any industry that adopts blockchain technology [33].…”