Monitoring the QoS for Web Services

@incollection{citeulike:2210834, abstract = {Quality of Service (QoS) information for Web services is essential to QoS-aware service management and composition. Currently, most QoS-aware solutions assume that the QoS for component services is readily available, and that the QoS for composite services can be computed from the QoS for component services. The issue of how to obtain the QoS for component services has largely been overlooked. In this paper, we tackle this fundamental issue. We argue that most of QoS metrics can be observed/computed based on service operations. We present the design and implementation of a high-performance QoS monitoring system. The system is driven by a QoS observation model that defines IT- and business-level metrics and associated evaluation formulas. Integrated into the SOA infrastructure at large, the monitoring system can detect and route service operational events systemically. Further, a model-driven, hybrid compilation/interpretation approach is used in metric computation to process service operational events and maintain metrics efficiently. Experiments suggest that our system can support high event processing throughput and scales to the number of CPUs.}, author = {Zeng, Liangzhao and Lei, Hui and Chang, Henry }, citeulike-article-id = {2210834}, doi = {http://dx.doi.org/10.1007/978-3-540-74974-5\_11}, journal = {Service-Oriented Computing – ICSOC 2007}, keywords = {qos}, pages = {132--144}, posted-at = {2008-07-11 03:19:25}, priority = {2}, title = {Monitoring the QoS for Web Services}, url = {http://dx.doi.org/10.1007/978-3-540-74974-5\_11}, year = {2007} }

TY - CHAP ID - citeulike:2210834 L3 - citeulike-article-id:2210834 TI - Monitoring the QoS for Web Services JF - Service-Oriented Computing – ICSOC 2007 SP - 132 EP - 144 N2 - Quality of Service (QoS) information for Web services is essential to QoS-aware service management and composition. Currently, most QoS-aware solutions assume that the QoS for component services is readily available, and that the QoS for composite services can be computed from the QoS for component services. The issue of how to obtain the QoS for component services has largely been overlooked. In this paper, we tackle this fundamental issue. We argue that most of QoS metrics can be observed/computed based on service operations. We present the design and implementation of a high-performance QoS monitoring system. The system is driven by a QoS observation model that defines IT- and business-level metrics and associated evaluation formulas. Integrated into the SOA infrastructure at large, the monitoring system can detect and route service operational events systemically. Further, a model-driven, hybrid compilation/interpretation approach is used in metric computation to process service operational events and maintain metrics efficiently. Experiments suggest that our system can support high event processing throughput and scales to the number of CPUs. KW - qos AU - Zeng, Liangzhao AU - Lei, Hui AU - Chang, Henry PY - 2007/// UR - http://dx.doi.org/10.1007/978-3-540-74974-5_11 ER -