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Managing a Cloud is a difficult task that calls for the deployment and co-operation of many different decision making mechanisms. What all of them have in common is that they need accurate monitoring information to effectively make decisions. Therefore, the deployment of a reliable monitoring mechanism is of paramount importance in the Cloud ecosystem. Guaranteeing Quality of Service coupled with...
Service flow in SOA systems need to detect quality of service (QoS) problems and to guarantee end-to-end performance. In previous work, we have proposed two faulty service identification methods: a dependency matrix based diagnosis and a Bayesian network based diagnosis. In this paper, we present a hybrid diagnosis to achieve high diagnosis accuracy and low diagnosis cost. The hybrid diagnosis reduces...
Cloud platforms host several independent applications on a shared resource pool with the ability to allocate computing power to applications on a per-demand basis. The use of server virtualization techniques for such platforms provide great flexibility with the ability to consolidate several virtual machines on the same physical server, to resize a virtual machine capacity and to migrate virtual machine...
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