科技部 973 计划(2015CB352400)；国家自然科学基金(U1401258, 61550110250)
Metadata of file systems is the data in charge of maintaining namespace, permission semantics and location of file data blocks. Metadata operations can account for up to 80% of total file system operations. As such, the performance of metadata services substantially impacts the overall performance of distributed file 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 file systems. The study was conducted from three perspectives that are always used to characterize the file 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 identified and analyzed, which could be used as a reference for related studies.
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
WANG Yang, LIU Xing, XU Chengzhong, JIANG Song, WANG Gang, WEN Tao, FAN Xiaopeng, LU Ping. A Review on Metadata Management in Large-Scale Distributed File Systems[J]. Journal of Integration Technology,2016,5(2):57-72