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Metadata Performance Optimization in Distributed File System

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3 Author(s)
Quan Zhang ; Sch. of Comput. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Dan Feng ; Fang Wang

Nowadays distributed file systems have to manage billions of small files for applications, and face with more metadata operations than data. So how to provide high metadata performance with such tremendous number of files and such large scale directories is big challenge for distributed file system. We observe that metadata lookup operations dominate metadata workload and incur poor metadata performance. In this paper, we present and implement an aggressive and delegable metadata cache to accelerate metadata access while guarantee consistency for distributed file system. Through this optimization, the file system can gain as much as a 50% improvement in creation rates and 40 times improvement in stat rates.

Published in:

Computer and Information Science (ICIS), 2012 IEEE/ACIS 11th International Conference on

Date of Conference:

May 30 2012-June 1 2012