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Energy-aware DNS server allocating
1National Institute of Standards and Technology, Gaithersburg MD 20899, USA.
Abstract:
Faced with the scalability and reliability challenge, the DNS is increasingly operated by geographically dispersed data centers. Energy management across those distributed diverse data centers is critical to reducing revenue loss for DNS operators. This paper addresses the DNS server allocating problem aiming at optimizing revenue loss in terms of delay cost and energy cost. An analytical model is proposed taking network delay, query processing delay, energy costs, and server selections into consideration. The optimal solution is obtained analytically given static parameters or using an iteration method given dynamic parameters. The effectiveness of energy-aware DNS server allocating and the feasibility of the proposed iteration method are validated through simulations.
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