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Paper Abstract and Keywords
Presentation 2014-04-17 12:55
Access Methods for Distributed Key-Value Stores with Highly SkewedAccess Distribution of Keys
Hiroyuki Kurita, Naoki Takada, Takao Yamashita, Tomoharu Motono (NTT) NS2014-6
Abstract (in Japanese) (See Japanese page) 
(in English) Distributed Key-Value Stores are becoming applicable to various applications, such as not only Web applications but authentication systems. However, if the frequency of requests for each key varies greatly, this causes an uneven distribution of the load to the Key-Value Store servers. As a result, the number of servers required increases. To solve such a problem, we had studied a load balancing method which focuses on the frequency of requests for each key. However, since the method needs to change the load balancing algorithm, it is difficult to apply to existing Key-Value Store systems. Therefore, this paper presents a load balancing method which makes replicas of keys according to the frequency of each key. Since this method is transparent to a Key-Value Store system, it can be applied without changing the existing systems. An evaluation of the proposed method using simulation has confirmed that the system can successfully reduce the number of servers by 13% - 31 %.
Keyword (in Japanese) (See Japanese page) 
(in English) Distributed Key-Value Store / Load Balancing / Consistent Hashing / Unbalance / Number of Servers / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 6, NS2014-6, pp. 27-32, April 2014.
Paper # NS2014-6 
Date of Issue 2014-04-10 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 NS2014-6

Conference Information
Committee NS  
Conference Date 2014-04-17 - 2014-04-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Ishigaki-City-Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Traffic, Network evaluation, Performance, Resource Management/Control, Traffic Engineering, Reliability, Resiliency 
Paper Information
Registration To NS 
Conference Code 2014-04-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Access Methods for Distributed Key-Value Stores with Highly SkewedAccess Distribution of Keys 
Sub Title (in English)  
Keyword(1) Distributed Key-Value Store  
Keyword(2) Load Balancing  
Keyword(3) Consistent Hashing  
Keyword(4) Unbalance  
Keyword(5) Number of Servers  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroyuki Kurita  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Naoki Takada  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Takao Yamashita  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Tomoharu Motono  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2014-04-17 12:55:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2014-6 
Volume (vol) vol.114 
Number (no) no.6 
Page pp.27-32 
#Pages
Date of Issue 2014-04-10 (NS) 


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