集成技术2016，Vol.5Issue(2)：57-72,16.
大规模分布式文件系统元数据管理综述
A Review on Metadata Management in Large-Scale Distributed File Systems
摘要
Abstract
Metadata of ifle systems is the data in charge of maintaining namespace, permission semantics and location of ifle data blocks. Metadata operations can account for up to 80% of total ifle system operations. As such, the performance of metadata services substantially impacts the overall performance of distributed ifle systems, especially with the advent of big data era, posing great pressure on the underlying storage systems. This paper reports the state-of-the-art research on the metadata services in large-scale distributed ifle systems. The study was conducted from three perspectives that are always used to characterize the ifle systems: high-scalability, high-performance and high-availability, with focus squarely on their respective major challenges as well as their developed mainstream technologies. Additionally, some existing problems in this research were also identiifed and analyzed, which could be used as a reference for related studies.关键词
元数据/分布式文件系统/工作负载/高可扩展/高性能/高可用Key words
metadata management/large-scale distributed file system/workload/high-scalability/high-performance/high-availability分类
信息技术与安全科学引用本文复制引用
王洋,刘星,须成忠,江松,王刚,文韬,范小朋,陆平..大规模分布式文件系统元数据管理综述[J].集成技术,2016,5(2):57-72,16.基金项目
科技部973计划(2015CB352400)；国家自然科学基金(U1401258,61550110250) （2015CB352400）
