Toward On-demand Nested Virtualization for Live-Refreshing Cloud Systems
Toward On-demand Nested Virtualization for Live-Refreshing Cloud Systems
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发表时间：
2020
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通讯作者：
Ryosuke Yasuoka;Takaaki Fukai;Takahiro Shinagawa
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作者：
Ryosuke Yasuoka;Takaaki Fukai;Takahiro Shinagawa
扩展抽象虚拟机监视器（VMM）是云系统中的关键组件。为了实现高可用性，VMM 应连续运行而不停止。然而，VMM必须经常重新启动以进行自我刷新，例如应用安全补丁、升级VMM以及恢复整个系统的活力。由于在重新启动VMM的同时停止云服务是不可接受的，因此实时刷新包括VMM在内的云系统对于云供应商来说是一个实际且至关重要的问题[2]。
Extended Abstract Virtual machine monitors (VMM) are a crucial component in cloud systems. To achieve high availability, VMMs should run continuously without stopping. However, VMMs must be rebooted frequently for self-refreshing, such as applying security patches, upgrading VMMs, and rejuvenating the entire systems. Since stopping cloud services while rebooting VMMs is unacceptable, live-refreshing cloud systems including VMMs is a practical and vital issue for cloud vendors [2].