深入到基于云的文件同步与用户协作

Haiyang Wang, Xiaoqiang Ma, Feng Wang, Jiangchuan Liu, Bharath Kumar Bommana, Xin Liu
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引用次数: 0

摘要

在本文中,我们将深入了解基于云的文件同步和协作系统。以流行的Dropbox为例,我们的测量显示,它的级联计算和通信操作比传统的文件托管要复杂得多。我们证明了这种串行设计对于云部署是必要的,它有效地避免了计算云内部可能出现的任务干扰;然而,这也会导致用户之间的服务差异更大。更糟糕的是,在协作文件编辑会话中,用户的更新将在没有任何警告的情况下被丢弃。不幸的是,下降率与最慢的合作者有关,这严重阻碍了系统的可扩展性和用户满意度。我们进一步研究了这种现象的根本原因以及其他性能瓶颈,并提供了实际改进的提示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Diving into cloud-based file synchronization with user collaboration
In this paper, we take a close look to understand the cloud-based file synchronization and collaboration systems. Using the popular Dropbox as a case study, our measurement reveals its cascaded computation and communication operations that are far more complicated than those in conventional file hosting. We show that this serial design is necessary for the cloud deployment, which effectively avoids the possible task interference inside the computation cloud; yet it also leads to higher service variance across users. Even worse, in a collaborative file editing session, users' updates would be discarded without any warning. The drop rate is unfortunately related to the slowest collaborator, which severely hinders the system scalability and user satisfaction. We further investigate the root causes of this phenomenon as well as other performance bottlenecks and offer hints for practical improvement.
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