Design and Implementation of a Metadata Management Scheme for Large Distributed File Systems

Jong Hyeon YUN  Yong Hun PARK  Dong Min SEO  Seok Jae LEE  Jae Soo YOO  

IEICE TRANSACTIONS on Information and Systems   Vol.E92-D   No.7   pp.1475-1478
Publication Date: 2009/07/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E92.D.1475
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Dependable Computing
distributed file system (DFS),  metadata server (MDS),  

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Most large-scale distributed file systems decouple a metadata operation from read and write operations for a file. In the distributed file systems, a certain server named a metadata server (MDS) is responsible for maintaining the metadata information of the file systems. In this paper, we propose a new metadata management scheme in order to provide the high metadata throughput and scalability for a cluster of MDSs. First, we derive a new metadata distribution technique. Then, we present a load balancing technique based on the distribution technique. Several experiments show that our scheme outperforms existing metadata management scheme in terms of scalability and load balancing.