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Template- based virtual machine memory cloud computing services system

Author: LiuChao
Tutor: WuSong
School: Huazhong University of Science and Technology
Course: Computer System Architecture
Keywords: Memory template Virtual Machine Xen Virtualization Cloud Computing
CLC: TP393.09
Type: Master's thesis
Year: 2011
Downloads: 94
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Abstract


In the current large-scale data centers leverage virtualization technology to achieve resource scheduling and sharing service has become the mainstream, which is a common way to virtual machines as a service in the background. In this case, when the service request kept switching and scheduling, the corresponding virtual machine will be created and closed frequently, these factors make the time to create a virtual machine and deploy cloud computing service response bottlenecks. Currently, virtualization environments to improve service responsiveness, optimize service deployment methods have been involved in this aspect of creating a virtual machine, the virtual machine creation process takes longer for the host the problem of excessive consumption of resources become increasingly prominent. Template-based virtual machine memory cloud computing services system VMCS (Cloud Service System Based On VM Memory Template) directly to the service deployment process creates a virtual machine optimized links, effective solution to the above problems. VMCS system is characterized in that: Xen for virtualization platforms, proposed the concept of virtual machine memory template by modifying the Domain-0 of Xen Tools code saved in a traditional virtual machine recovery operations based on the use of memory template to create a virtual machine, and completion of their private property virtual machine configuration. VMCS system realizes the user layer, service management and virtual machine platform layer three-tier architecture in which the user level via WEB interface to provide users with a unified service access interface; service management is the core of the system, first through the service request processing is complete a service request parsing, and then call the template virtual machine memory management and virtual machine image file management interface that you want to create the virtual machine configuration information settings, and finally by the Service Center to complete the distribution of the message command. Virtual machine platform layer is the underlying system, including service Daemon and Agent, Service Daemon and Services Center is mainly responsible for communication, received a request to create a virtual machine or perform tasks message and call native API template to create a virtual machine memory to complete the process, and Agent inside the virtual machine will be responsible for modifying the virtual machine's private property and inside the virtual machine starts computing tasks. To the VMCS system build Hadoop services, for example, quickly create multiple virtual machines to complete the Hadoop WordCount computing tasks. Compared to traditional methods through the use of VMCS system allows to create virtual machines of the time reduced by 80%, from creating a virtual machine brings disk I / O overhead is reduced to 50% of Hadoop WordCount perform computational tasks of the time by 40%.

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