NDLI: Data storage schema upgrade via metadata evolution in SaaS

Content Provider	IEEE Xplore Digital Library
Author	Hui Liu Shengqi Wu
Copyright Year	2012
Description	Author affiliation: School of Mechanical Engineering, Shandong University, Jinan, China School of Computer Science and Technology, Shandong University, Jinan, China (Hui Liu; Shengqi Wu)
Abstract	SaaS has become a typical cloud computing delivery model. In sparse table, one of the most popular multi-tenant data storage schemas for SaaS, all tenants' data are stored into sparse table and mapped to tenant's logical view by metadata. During the data storage schema upgrade in SaaS, all tenants' data need to be migrated into the new data schema before it becomes effective to ensure the integrity of the tenants' data. However, the migration is complex and brings overhead workload. Worse still, it may cause the system unusable. In this paper, we propose metadata evolution technology. We can realize the mapping from the old data schema to new data schema smoothly via metadata evolution during schema upgrade. So the schema upgrade can be completed without data migration.
Starting Page	3148
Ending Page	3151
File Size	316519
Page Count	4
File Format	PDF
ISBN	9781457714146
e-ISBN	9781457714153
DOI	10.1109/CECNet.2012.6201658
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decision support systems Data migration Databases Metadata evolution Memory Schema upgrade SaaS Educational institutions Software Data models Engines
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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