NDLI: CRMS: A centralized replication management scheme for cloud storage system

Content Provider	IEEE Xplore Digital Library
Author	Kangxian Huang Dagang Li Yongyue Sun
Copyright Year	2014
Description	Author affiliation: Xunlei Networking Tech. Ltd., China (Yongyue Sun) \|\| Sch. of Electron. & Comput. Eng., Peking Univ., Beijing, China (Kangxian Huang; Dagang Li)
Abstract	As distributed storage clusters have been used more and more widely in recent years, data replication management, which is the key to data availability, has become a hot research topic. In storage clusters, internal network bandwidth is usually a scarce resource. Misplaced replicas may take up too much network bandwidth and greatly deteriorate the overall performance of the cluster. Aiming to reduce the internal network traffic and to improve load balancing of distributed storage clusters, we developed a centralized replication management scheme referred to as CRMS. A model is proposed to capture the relationships of block access probability, replica location and network traffic. Based on this model, the replica placement problem is formulated as a 0-1 programming optimization problem. Based on the feasible solution to this problem, a heuristic is proposed to process the replica adjustments step by step. Our CRMS is evaluated by using the access history from a distributed storage cluster of Xunlei Inc., one of the leading Internet companies in China. The experimental results show that CRMS can greatly reduce the amount of internal network bandwidth consumption, while keeping the cluster's storage usage in balance.
Starting Page	344
Ending Page	348
File Size	361416
Page Count	5
File Format	PDF
ISBN	9781479941469
DOI	10.1109/ICCChina.2014.7008299
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Heuristic algorithms Customer relationship management Bandwidth Servers IP networks History
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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