NDLI: Method of metadata synchronization in parallel distributed databases

Content Provider	IEEE Xplore Digital Library
Author	Hequn Xian Zhigang Zhao Jianbo Li
Copyright Year	2011
Description	Author affiliation: College of Information Engineering, Qingdao University, Qingdao, China (Hequn Xian; Zhigang Zhao; Jianbo Li)
Abstract	Metadata in a parallel distributed database contains information about table fragmentation, physical storage distribution, and access control policies. It is essential to query processing and security policy enforcement. Metadata in a parallel distributed database is usually stored in the form of system tables, it can be replicated through out every site in the system in order to improve performance and availability. Changes to the metadata should be aware by every site with acceptable delay and consistency. In this paper, a novel method is proposed to deal with the problem of metadata synchronization in parallel distributed databases. A locking mechanism is devised to coordinate different database operations, it can postpone data moving operations and carries out propagation only when necessary. Compared with existing methods, it dramatically reduces the communication between different sites, such that situations can be avoided in which all sites require updates simultaneously and a large portion of network bandwidth is consumed at a burst. Experiment results show the superiority of the proposed method over the others.
Starting Page	457
Ending Page	461
File Size	123248
Page Count	5
File Format	PDF
ISBN	9781612844855
e-ISBN	9781612844862
DOI	10.1109/ICCSN.2011.6013633
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-27
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Protocols metadata synchronization parallel distributed database access control enforcement Distributed databases Database systems Synchronization Servers
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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