提供基于对象的文件系统的服务质量支持

Joel C. Wu, S. Brandt
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引用次数: 40

摘要

Bourbon是一个服务质量框架,旨在与Ceph基于对象的存储系统一起工作。Ceph是一个高度可扩展的分布式文件系统,可以扩展到数万个基于对象的存储设备(osd)。Bourbon框架通过提供在不同类别的工作负载之间隔离性能的能力,使Ceph能够感知qos。波旁框架由Q-EBOFS启用,这是对EBOFS基于对象的文件系统的qos感知增强。Q-EBOFS允许单个osd实现qos感知,并且通过利用Ceph采用的CRUSH数据分布算法的随机元素,一组独立的qos感知osd可以在全局级别提供基于类的性能隔离。通过避免引入任何集中式组件或收集和传播全局状态信息的需要,这保留了Ceph的高度可伸缩特性。本文通过首先描述Q-EBOFS来介绍Bourbon框架,然后研究运行Q-EBOFS的一组osd如何协同工作以提供全局级别的QoS。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Providing Quality of Service Support in Object-Based File System
Bourbon is a quality of service framework designed to work with the Ceph object-based storage system. Ceph is a highly scalable distributed file system that can scale up to tens of thousands of object-based storage devices (OSDs). The Bourbon framework enables Ceph to become QoS-aware by providing the capability to isolate performance between different classes of workloads. The Bourbon framework is enabled by Q-EBOFS, a QoS-aware enhancement of the EBOFS object-based file system. Q-EBOFS allows individual OSDs to become QoS-aware, and by leveraging on the random element of the CRUSH data distribution algorithm employed by Ceph, it is possible for a collection of independent QoS-aware OSDs to provide class-based performance isolation at the global level. This preserves the highly scalable nature of Ceph by avoiding the introduction of any centralized components or the need to collect and propagate global state information. This paper presents the Bourbon framework by first describing Q-EBOFS, and then examines how a collection of OSDs running Q-EBOFS can work together to provide global-level QoS.
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