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Dynamic Load Balancing in Geographically Distributed Heterogeneous Web Servers (1998)
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| Venue: | In International Conference on Distributed Computing Systems |
| Citations: | 55 - 6 self |
BibTeX
@INPROCEEDINGS{Colajanni98dynamicload,
author = {Michele Colajanni and Philip S. Yu and Valeria Cardellini},
title = {Dynamic Load Balancing in Geographically Distributed Heterogeneous Web Servers},
booktitle = {In International Conference on Distributed Computing Systems},
year = {1998},
pages = {295--302}
}
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Abstract
With ever increasing Web traffic, a distributed multi-server Web site can provide scalability and flexibility to cope with growing client demands. Load balancing algorithms to spread the requests across multiple Web servers are crucial to achieve the scalability. Various domain name server (DNS) based schedulers have been proposed in the literature, mainly for multiple homogeneous servers. The presence of heterogeneous Web servers not only increases the complexity of the DNS scheduling problem, but also makes previously proposed algorithms for homogeneous distributed systems not directly applicable. This leads us to propose new policies, called adaptive TTL algorithms, that take into account of both the uneven distribution of client request rates and heterogeneity of Web servers to adaptively set the time-to-live (TTL) value for each address mapping request. Extensive simulation results show that these strategies are robust and effective in balancing load among geographically distribut...
Keyphrases
geographically distributed heterogeneous web server dynamic load balancing extensive simulation result multiple web server dns scheduling problem various domain name server client request rate web server adaptive ttl algorithm heterogeneous web server uneven distribution multiple homogeneous server web traffic distributed multi-server web site new policy client demand
