DocumentCode :
1804923
Title :
When hybrid cloud meets flash crowd: Towards cost-effective service provisioning
Author :
Yipei Niu ; Bin Luo ; Fangming Liu ; Jiangchuan Liu ; Bo Li
Author_Institution :
Key Lab. of Services Comput. Technol. & Syst., Huazhong Univ. of Sci. & Technol., Wuhan, China
fYear :
2015
fDate :
April 26 2015-May 1 2015
Firstpage :
1044
Lastpage :
1052
Abstract :
With rapid development in online shopping, e-commerce websites are facing intensive user requests from an increasing number of customers. Especially in promotion seasons, these websites may encounter flash crowds which pull heavy pressure o private infrastructure and even make he website unavailable. Such severe flash crowds can be addressed by leveraging hybrid cloud solution, which relieves workloads of the private cloud by offloading the excessive user requests to the IaaS public cloud. However, the bursty and fluctuation of flash crowds bring challenges to distributing user requests with targest of delay-minimizing and cost-saving. In his paper, we apply the queueing theory to evaluate the average response time and explore the tradeoff between performance and cost in the hybrid cloud. By taking advantage of Lyapunov optimization techniques, we design an online decision algorithm for request distribution which achieves the average response time arbitrarily close to the theoretically optimum and controls he outsourcing cost based on a given budge. The simulation results demonstrate ha in a hybrid cloud, our solution can reduce he cost of e-commerce services as well as guarantee performance when encountering flash crowds.
Keywords :
Lyapunov methods; Web sites; cloud computing; delays; electronic commerce; optimisation; outsourcing; queueing theory; retail data processing; IaaS public cloud; Lyapunov optimization technique; Website unavailability; cost-effective service provisioning; cost-saving; delay minimization; e-commerce Websites; e-commerce service; flash crowd; hybrid cloud solution; online decision algorithm; online shopping; outsourcing cost; performance-cost tradeoff; private cloud workload relief; private infrastructure; promotion season; queueing theory; response time; user request distribution; Cloud computing; Computers; Conferences;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Communications (INFOCOM), 2015 IEEE Conference on
Conference_Location :
Kowloon
Type :
conf
DOI :
10.1109/INFOCOM.2015.7218477
Filename :
7218477
Link To Document :
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