Applying Microreboot to System Software

Michael V. Le, Y. Tamir
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引用次数: 13

Abstract

Availability is increased with recovery based on component micro reboot instead of whole system reboot. There are unique challenges that must be overcome in order to apply micro reboot to low-level system software. These challenges arise from the need to interact with immutable hardware components on one hand and, on the other hand, with a wide variety of higher level workloads whose characteristics may be unknown. As an example, we describe our experience with applying micro reboot to system-level virtualization software. Specifically, implementing micro reboot for all the components of the widely-used Xen virtualization infrastructure. We identify the unique difficulties with applying micro reboot for such low-level software and present our solutions. We present measures of the complexity of different classes of solutions and experimental results, based on extensive fault injection, showing the effectiveness of the solutions.
将微重启应用于系统软件
基于组件微重启而不是整个系统重启的恢复提高了可用性。为了将微重启应用于底层系统软件,必须克服一些独特的挑战。这些挑战来自于一方面需要与不可变的硬件组件进行交互,另一方面需要与各种特征未知的高级工作负载进行交互。作为一个例子,我们描述了在系统级虚拟化软件上应用微重启的经验。具体来说,就是为广泛使用的Xen虚拟化基础设施的所有组件实现微重启。我们确定了对这种低级软件应用微重启的独特困难,并提出了我们的解决方案。我们给出了不同类型的解决方案的复杂性度量和实验结果,基于广泛的故障注入,显示了解决方案的有效性。
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