NDLI: A proposal of DNS-based adaptive load balancing method for mirror server systems and its implementation

Content Provider	IEEE Xplore Digital Library
Author	Yokota, H. Kimura, S. Ebihara, Y.
Copyright Year	2004
Description	Author affiliation: Tsukuba Univ., Ibaraki, Japan (Yokota, H.)
Abstract	In order to protect a server to become overloading due to concentration of accesses, a mirror server system is widely used for distributing the load to multiservers. For such a system, it is very important for users to select an appropriate one among the servers. In the previous systems, the DNS (domain name system) Round-Robin mechanism is widely adopted for this purpose, otherwise users must choose a server by themselves. Even in the former method, however, since all servers are evenly assigned to clients without any cares of the performance and process status of the servers, the load of each server is deflected. To solve the above problem, this article proposes a new adaptive load balancing method based on the ordinary DNS Round-Robin mechanism. In this proposal, a DNS server for the mirror-server system periodically probes the status of each server. For a query from each client, the DNS server changes its response from the probed results and IP address of the client. Finally, the prototype system of the proposal is implemented and the file transfer speeds of both the proposed method and Round-Robin DNS method are estimated for the mirror server system of RingServer Project in Japan.
Sponsorship	IEEE Comput. Soc. and Communication Res. Lab., Japan
Starting Page	208
Ending Page	213
File Size	298927
Page Count	6
File Format	PDF
ISBN	0769520510
DOI	10.1109/AINA.2004.1283788
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-29
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Proposals Load management Mirrors Network servers Web server Domain Name System Protection Probes Prototypes File servers
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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