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首页> 外文期刊>Journal of systems and software >The Architecture Of An Event Correlation Service For Adaptive Middleware-based Applications
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The Architecture Of An Event Correlation Service For Adaptive Middleware-based Applications

机译：基于自适应中间件的应用程序的事件关联服务的体系结构

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摘要

Loosely coupled component communication driven by events is a key mechanism for building middleware-based applications that must achieve reliable qualities of service in an adaptive manner. In such a system, events that encapsulate state snapshots of a running system are generated by monitoring components. Hence, an event correlation service is necessary for correlating monitored events from multiple sources. The requirements for the event correlation raise two challenges: to seamlessly integrate event correlation services with other services and applications; and to provide reliable event management with minimal delay. This paper describes our experience in the design and implementation of an event correlation service. The design encompasses an event correlator and an event proxy that are integrated with an architecture for adaptive middleware components. The implementation utilizes the common-based event (CBE) specification and stateful Web service technologies to support the deployment of the event correlation service in a distributed architecture. We evaluate the performance of the overall solution in a test bed and present the results in terms of the trade-off between the flexibility and the performance overhead of the architecture.
机译：事件驱动的松耦合组件通信是构建基于中间件的应用程序的关键机制，该应用程序必须以自适应方式实现可靠的服务质量。在这样的系统中，通过监视组件来生成封装正在运行的系统的状态快照的事件。因此，事件关联服务对于关联来自多个源的监视事件是必需的。事件关联的需求带来了两个挑战：将事件关联服务与其他服务和应用程序无缝集成；并以最小的延迟提供可靠的事件管理。本文介绍了我们在事件相关服务的设计和实现中的经验。该设计包含一个事件相关器和一个事件代理，它们与自适应中间件组件的体系结构集成在一起。该实现利用基于公共事件（CBE）的规范和有状态的Web服务技术来支持事件相关服务在分布式体系结构中的部署。我们在测试台上评估整个解决方案的性能，并根据架构的灵活性和性能开销之间的折衷来给出结果。

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