在制品:一种新的大规模集群时钟同步系统

Zhuochen Fan, Xiaodong Li, Yanwei Xu, Yuqing Li, Tong Yang, Steve Uhlig
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引用次数: 2

摘要

时钟同步在大规模集群的实时应用中是必不可少的。最先进的惠更斯时钟同步通过数据中心服务器之间的偏移探测环路校正减少同步错误。然而,惠更斯并没有为大规模集群提供解决方案。在本文中,我们提出了一种新的、可扩展的大规模集群CAT-Sync时钟同步系统,该系统包括三个关键技术:最优探针拓扑构建、探测信道分配和时间片同步。在CAT-Sync中,每个主机的工作负载是相同的,不会随着集群规模的扩大而增加。我们的CAT-Sync系统在60个虚拟机上实现了稳定的2微秒内的时钟同步精度,整个同步过程的平均时钟偏移量比惠更斯提高了约44.8%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Work-in-Progress: A Novel Clock Synchronization System for Large-Scale Clusters
Clock synchronization is essential in real-time applications of large-scale clusters. State-of-the-art Huygens clock synchronization reduces synchronization errors through offset probing loop correction between data center servers. However, Huygens does not offer a solution for large-scale clusters. In this paper, we propose a novel and scalable CAT-Sync clock synchronization system for large-scale clusters, which includes three key techniques: optimal probe topology Construction, probing channel Assignment, and Time-slice synchronization. In CAT-Sync, the workload of each host is the same and will not increase with the expansion of the cluster size. Our CAT-Sync system achieves a stable clock synchronization accuracy within 2 microseconds on 60 virtual machines, and the average clock offset for the entire synchronization process is improved by about 44.8% compared to Huygens.
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