Automated Control in Cloud Computing: Challenges and Opportunities

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Executive Summary

With advances in virtualization technology, virtual machine services offered by cloud utility providers are becoming increasingly powerful, anchoring the ecosystem of cloud services. Virtual computing services are attractive in part because they enable customers to acquire and release computing resources for guest applications adaptively in response to load surges and other dynamic behaviors. "Elastic" cloud computing APIs present a natural opportunity for feedback controllers to automate this adaptive resource provisioning, and many recent works have explored feedback control policies for a variety of network services under various assumptions. This paper addresses the challenge of building an effective controller as a customer add-on outside of the cloud utility service itself.

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