突波式需求之網頁伺服器負載平衡架構

Web Server Load Balance Architecture for Burst Mode Service Request

池至欽(Zhi-Chi Chy)

指導教授 ： 包蒼龍

大同大學/電機資訊學院/資訊工程學系所/碩士(2004年)

摘要

由於網際網路應用的迅速發展，越來越多服務需要更強大的伺服器。不過，相當多服務不太容易只透過一台伺服器來單獨提供。叢集伺服器架構，提供大企業和商業網站平順地處理大量服務的能力。但是，叢集系統的費用相當高。這篇論文利用Round-Robin演算法建構一個負載平衡系統，把多台不同等級的電腦組合起來，就像叢集系統一樣能應付短時間大量的連線服務。我們運用多台用戶端設備在短時間內送出大量的連線要求給網頁伺服器。實驗結果顯示我們的系統不僅具備處理大量連線的能力，同時也成功的依照個別伺服器的能力分配負載。

關鍵字

伺服器 ； 負載平衡系統

並列摘要

More and more network services needs powerful server to handle. However, quite a lot of services may not be able to handle by a single server. The cluster server system provides fluent website services to the big enterprise and business website, which can sustain a large number of connections in a short period of time. However, the cost of cluster server system is quite expensive.
We propose a system that uses the Round-Robin algorithm to implement a load balance web server system from a large number of heterogeneous servers, including general purpose personal computers and low end PC servers. We use a number of client computers to simulate large number of client requests to our load balance server system. The experimental results show that our system can not only have the capability to process a large number of connection requests but also successfully distribute the load to individual server according to its capacity.

並列關鍵字

load balance ； Web server

參考文獻

[2]. Cardellini, V., Colajanni, M., Yu, P.S “Dynamic load balancing on Web-server systems” Internet Computing, IEEE, Volume: 3, Issue: 3, May-June 1999

[4]. Jiannong Cao, Yudong Sun, Xianbin Wang and Sajal K. Das, “Scalable load balancing on distributed web servers using mobile agents “, The Hong Kong Polytechnic University, 2003 Elseier Inc., J. Parallel Distrib. Comput. 63 (2003) 996-1005.

[5]. PHILIPS S. Yu, VALERIA CARDELLINI, MICHELE COLAJANNI, “Dynamic load balancing on web-server systems”, University of Rome Tor Vergata, University of Modena, IEEE INTERNET COMPTING,1999 P28-P39

[11]. D.Kerdlapanan and A. Khunkitti, “ Content-based load balancing with multicast and TCP-handoff “, IEEE 2003, King Mongkut’s Institute of technology ladkrabang

REFERENCE