期刊名称：International Journal of Advanced Networking and Applications
电子版ISSN：0975-0290
出版年度：2012
卷号：3
期号：5
页码：1367-1374
出版社：Eswar Publications
摘要：Computing inf rastructure provisioning in Infrastructure as a Service (IaaS) cloud is done in the f orm of virtual machines. Haizea, a resource lease manager, provides four types of leases: Immediate, Best Effort (BE), Adva nce Reservation (AR) and Dead Line Sensitive (DLS). AR leases are most privileged leases with "AR preempts other leases" policy, since they can preempt & suspend other BE leases when demanded by consumers. This leads to two problems: 1) a set of BEs can go suspended infinite number of time & 2) ARs, at the actual time of their resource allocation, can be rejected due to presence of ot her ARs in schedule. This work proposes two algorithms 1) Starvation-Removal and 2) AR-to-BE Conversion to solve these problems. Experimental results of t he proposed algorithms successfully demonstrate that we can stop starvation of BE leases for resources and effectively improve request acceptance rate
