NDLI: Maintaining replicated redirection services in Web-based information systems

Content Provider	IEEE Xplore Digital Library
Author	Dasgupta, K. Kalpakis, K.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA (Dasgupta, K.)
Abstract	The growth in the commercial use of the Internet and the proliferation of new Web information services has led to a number of problems - overloaded servers, traffic congestion and increasing client latencies. Dynamic replication of information among geographically distributed Web servers is commonly used to address such problems of scale. A key challenge for such systems is to maintain an efficient and scalable redirection service that tracks the servers where documents are replicated and assigns each client request to a server that can offer the "best" service. We propose a new scheme for maintaining redirection services in Web-based information systems. The proposed scheme is based on adaptive replication of the entries of the location directory that provides the redirection service. Network-level support enables client requests to be redirected to appropriate servers in a quick and efficient manner. We integrate our scheme with a dynamic object replication protocol proposed in the literature. Simulations based on synthetic workloads and the Internet backbone map of CRL Network Services demonstrate that the replicated redirection service delivers significant improvements in terms of client response time, while successfully eliminating hot spots in the network and imposing minimal traffic overhead.
Sponsorship	IEEE Comput. Soc. Tech. Committee on the Internet
Starting Page	143
Ending Page	152
File Size	952952
Page Count	10
File Format	PDF
ISBN	0769511376
DOI	10.1109/WIAPP.2001.941881
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Web server Web and internet services Delay Network servers Information systems Protocols IP networks Spine Telecommunication traffic Traffic control
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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