POSTER: QMapper: Scalability and energy saving for virtualized web server clusters

This paper presents the Quantum Mapper (QMapper), a model for managing Virtual Application Servers (VAS) on cluster-based web servers. In addition to providing energy savings and maintenance of the QoS of the cluster applications, the QMapper has linear scalability and defines a small-capacity processing virtual web server, known as Quantum VAS (QVAS). A QVAS operates in a flexible manner, changing its performance and power consumption depending on the workload. The results show that our model conserves up to 39% of the energy required by a cluster designed for peak workload scenario, with a negligible impact on the applications performance.