Document replication and distribution in extensible geographically distributed web servers
Journal of Parallel and Distributed Computing - Scalable web services and architecture
Increasing the Performance of CDNs Using Replication and Caching: A Hybrid Approach
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Papers - Volume 01
Approximate Algorithms for Document Placement in Distributed Web Servers
IEEE Transactions on Parallel and Distributed Systems
Online solutions for scalable file server systems
InfoScale '06 Proceedings of the 1st international conference on Scalable information systems
Comparison and analysis of ten static heuristics-based Internet data replication techniques
Journal of Parallel and Distributed Computing
Combining replica placement and caching techniques in content distribution networks
Computer Communications
Review: A survey on content-centric technologies for the current Internet: CDN and P2P solutions
Computer Communications
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How documents of a web site are replicated and where they are placed among the server nodes have an important bearing on balance of load in a geographically Distributed Web Server (DWS) system. The traffic generated due to movements of documents at runtime could also affect the performance of the DWS system. In this paper, we prove that minimizing such traffic is NP-hard. We propose a new document distribution scheme that periodically performs partial replication of a site's documents at selected server locations to maintain load balancing. Several approximation algorithms are used in it to minimize traffic generated. The simulation results show that this scheme can achieve better load balancing than a dynamic scheme, while the internal traffic it causes has a negligible effect on the system's performance.