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Optimizing run-time SOA governance through context-driven SLAs and dynamic monitoring

机译:通过上下文驱动的sLa和动态监视优化运行时sOa治理

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摘要

End-users increasingly demand the provisioning of secure, scalable, reliable, flexible, resilient, and cost-efficient infrastructures, platforms, and software. However, the preservation of these properties, particularly in SOA and cloud environments, is extremely affected by distributed, heterogeneous, transient, and volatile context information. We envision the implementation of governance feedback loops, an innovative approach that equips service-oriented systems with run-time governance capabilities able to control the fulfillment of service level agreements (SLA) under changing execution environments. However, the effectiveness of our approach depends on the capability of governance infrastructures to guarantee the consistency between monitoring strategies, governance objectives, and context situations. To advance our vision, this paper proposes (i) contextual RDF graphs, a machine-readable specification of monitoring requirements that enable governance feedback loops with dynamic context monitoring capabilities; and (ii) context-driven SLAs, an extension of SLAs where context requirements are explicitly mapped to service level objectives (SLO) to optimize the run-time control of contracted obligations
机译:最终用户越来越多地需要提供安全,可扩展,可靠,灵活,有效的,具有成本高效的基础架构,平台和软件。然而,通过分布式,异构,瞬态和挥发性的上下文信息,保护这些属性,特别是在SOA和云环境中。我们设想了治理反馈循环的实施,这是一种创新方法,可以通过运行时治理能力装备面向服务的系统,能够在更改执行环境下控制服务级别协议(SLA)的实现。然而,我们的方法的有效性取决于治理基础设施的能力,以保证监测战略,治理目标和情境情况之间的一致性。为了推进我们的愿景,本文提出了(i)上下文RDF图,一种监控要求的机器可读规范,使治理反馈循环具有动态上下文监视功能; (ii)上下文驱动的SLA,SLA的扩展,其中上下文要求被明确映射到服务级别目标(SLO),以优化合同义务的运行时间控制

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