Replica based distributed metadata management in grid environment

Authors:
Hai Jin;Muzhou Xiong;Song Wu;Deqing Zou
Affiliations:
Cluster and Grid Computing Lab, School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab, School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab, School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab, School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China
Venue:
ICCS'06 Proceedings of the 6th international conference on Computational Science - Volume Part IV
Year:
2006

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Abstract

Metadata management is one of the key techniques in data grid. It is required to achieve two goals: high efficiency and availability. This paper presents a Replication Based Metadata Management System (RBMMS) as metadata server implemented in Global Distributed Storage System (GDSS). To address the above two goals RBMMS maintains a spares strongly connected graph to describe replica structure and relations among the replicas. The graph is used to propagate updating information and replica discovery in the process of replica addition and removal. Cache module is also implemented in RBMMS to further improve the performance of metadata access. The evaluation demonstrates that RBMMS attains high availability and efficiency of metadata management system.