NDLI: Performance evaluation of new methods of automatic redirection for load balancing of Apache servers distributed in the Internet

Content Provider	IEEE Xplore Digital Library
Author	Suryanarayanan, K. Christensen, K.J.
Copyright Year	2000
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Univ. of South Florida, Tampa, FL, USA (Suryanarayanan, K.)
Abstract	An overloaded web server will lose incoming requests resulting in a "404 error" appearing at a client browser. Front-end application-level switches can redirect requests to less loaded servers. However, there exist no native methods within common web servers to automatically redirect requests for reducing load. We develop and evaluate changes to the open source Apache HTTP server to automatically redirect requests during periods of high load to a pre-specified overload server. We call the modified server "Red-Apache". To reduce the double round-trip times of HTTP 301 redirection, a new "server tag" substitution method of redirection at a client browser is investigated. The server tag enables single round-trip redirection and is implemented by a JavaScript function in a returned page. Using the AB and SURGE benchmarks, we show that Red-Apache and server tag outperform the original Apache server and HTTP redirection, respectively.
Starting Page	644
Ending Page	651
File Size	703651
Page Count	8
File Format	PDF
ISBN	0769509126
ISSN	07421303
DOI	10.1109/LCN.2000.891111
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Load management Web server Network servers Switches Delay Internet Java Protocols Computer science Computer errors
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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