分布式文件系统的元数据管理方案演变:整体到粒度  

Evolution of Metadata Management Schemes in Distributed File Systems:from Holistic to Granular

作　　者：路垚 段红军 张利莹 王振飞[1] LU Yao;DUAN Hongjun;ZHANG Liying;WANG Zhenfei(School of Computer and Artificial Intelligence,Zhengzhou University,Zhengzhou 450001,China;School of Zhengzhou Art Kindergarten Normal,Zhengzhou 450000,China)

机构地区：[1]郑州大学计算机与人工智能学院,郑州450001 [2]郑州艺术幼儿师范学校,郑州450000

出　　处：《小型微型计算机系统》2025年第2期305-313,共9页Journal of Chinese Computer Systems

基　　金：国家大学生创新创业训练项目(202410459121)资助;国家重点研发计划课题项目(2023YFB4502704)资助。

摘　　要：元数据的存取性能对于分布式文件系统至关重要,近年来已成为学术界和工业界研究的热点.早期的分布式文件系统未严格区分元数据和数据管理,导致可扩展性和性能优化方面的挑战.针对此问题,主流分布式文件系统采用元数据和文件数据分离的架构,以提高系统的可扩展性和效率.然而,随着数据量的进一步增长和对系统性能的不断追求,最新的文件系统开始提出将元数据进一步细化管理的概念.这一趋势意味着系统对元数据的管理将更加精细化和灵活,能够更好地适应不断变化的需求和数据规模.对国内外分布式文件系统元数据管理方案的最新进展进行归纳、比较和分析,并结合国家发展战略和重大应用需求,选取与我国国计民生密切相关的领域,从典型应用分析总结元数据相关技术的行业进展.最后,就未来的技术挑战和研究方向进行展望.The access performance of metadata is very important to distributed file system,and it has become the focus of research in academia and industry in recent years.Early distributed file systems did not strictly distinguish between metadata and data management,leading to scalability and performance challenges.To solve this problem,the mainstream distributed file system adopts the architecture of metadata and file data separation to improve the scalability and efficiency of the system.However,with the further growth of data volume and the continuous pursuit of system performance,the latest file systems have begun to propose the concept of further detailed management of metadata.This trend means that the system′s management of metadata will be more refined and flexible,and better able to adapt to changing needs and data size.This paper summarizes,compares and analyzes the latest progress of metadata management schemes of distributed file system at home and abroad,and combines national development strategies and major application needs to select fields closely related to China′s national economy and people′s livelihood,and summarizes the industry progress of metadata related technologies from typical application analysis.Finally,the future technical challenges and research directions are prospected.

关 键 词：分布式文件系统 元数据管理 粒度 可扩展性 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]