A software update mechanism for virtual machines in IaaS multi-tenant environment
- CHEN Guang-rui, CHEN Xing-shu, WANG Yi-tong, GE Long
JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2017, 52(3):
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To facilitate the management of software versions in Virtual Machines(VMs)in Infrastructure as a Service(IaaS)environment and reduce the potential security issue is introduced by outdated softwares, a software update mechanism was studied. Firstly, a unified management framework was proposed, and the update tasks are managed by platform instead of users themselves. And then, the mechanism accesses the update service to tenant network using Linux Network Namespace, and isolates the different tenants update services. Lastly, for the same update tasks, this mechanism distributes the software packages in reliable multicast way, which greatly reduces network traffics and saves network resources. The result showed that this mechanism could effectively improve the efficiency of software distribution, save the network resources, reduce the CPU consumption, and ensure the isolation of different tenants update services.