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Paper Abstract and Keywords
Presentation 2009-11-13 15:10
Novel Load Distribution System to Mitigate Flash Crowds
Kenji Yokota, Takuya Asaka, Tatsuro Takahashi (Kyoto Univ.) NS2009-117
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years there is a rapid increase of traffic to a certain Web server within a short time as the number of Internet users increases, and such a phenomenon is called a flash crowd. Once a flash crowd occurs in the Web server, the response rate decreases, or the Web server may crash as the load increases. This paper proposes the load distribution system which mitigates an excessive access to achieves a stable content delivery without enhancing the performance of the Web server even when flash crowds occur. In proposed system, a proxy server detects flash crowds by observing the number of requests, then it changes a content delivery system for flash crowds. To limit access to the Web server, the proxy server redirects the download request to other clients that hold the content in the cache when flash crowds occur. This paper also proposes the content delivery system that uses a tree structure to reduce the load of clients. Moreover, its efficacy is shown through simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) flash crowd / Web server / proxy / load distribution / P2P / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 273, NS2009-117, pp. 77-82, Nov. 2009.
Paper # NS2009-117 
Date of Issue 2009-11-05 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2009-117

Conference Information
Committee CQ NS ICM  
Conference Date 2009-11-12 - 2009-11-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa Institute of Technology (Ishikawa) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NGN and NwGN Architecture, Traffic Measurement and Control, Quality of Service, Network Management, general areas 
Paper Information
Registration To NS 
Conference Code 2009-11-CQ-NS-ICM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Novel Load Distribution System to Mitigate Flash Crowds 
Sub Title (in English)  
Keyword(1) flash crowd  
Keyword(2) Web server  
Keyword(3) proxy  
Keyword(4) load distribution  
Keyword(5) P2P  
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1st Author's Name Kenji Yokota  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Takuya Asaka  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tatsuro Takahashi  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2009-11-13 15:10:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2009-117 
Volume (vol) vol.109 
Number (no) no.273 
Page pp.77-82 
#Pages 6 
Date of Issue 2009-11-05 (NS) 

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