A Web Services Container Supporting QoS Hierarchical Control with Multiple Measurements for Utilization

In Service-Oriented Architecture (SOA), web services container demands to support QoS (Quality of Service) hierarchical control to provide the optimization of utilization for web services container as well as a guarantee of the QoS requirements of the services. With the spreading of SOA and the improvement of research in web service, the optimization for web services container is changing from solely seeking high performance to balancing utilization on multiple levels. Therefore, web services container needs to support QoS hierarchical control based on different measurements of utilization. In order to support QoS hierarchical control with multiple measurements of utilization, a representation method of web service QoS hierarchical control is proposed, which represents different QoS hierarchical control strategies with different measurements for utilization by a single standard. Based on the representation method, we present a QoS hierarchical control mixed strategy, which can support QoS hierarchical control with multiple measurements for utilization. Using the QoS hierarchical control mixed strategy, we realize a web services container. The result of the test shows that the web services container realized can support QoS hierarchical control with different measurements for utilization. The utilization of the service container significantly improves when the mixed strategy measures utilization from multiple perspectives, add the performance of which is slightly better than that of other QoS hierarchical control strategies that measures utilization from a single perspective.