``Downloading Replicated, Wide-Area Files -- A Framework and Empirical Evaluation''

Rebecca L. Collins and James S. Plank.

Technical Report UT-CS-04-527, University of Tennessee, June, 2004.

This paper has been published

Citation: Rebecca L. Collins and James S. Plank, ``Downloading Replicated, Wide-Area Files -- a Framework and Empirical Evaluation,'' The 3rd IEEE International Symposium on Network Computing and Applications, Cambridge, MA, USA, August, 2004. See this link for further information, and for the PDF of that paper.

Available via anonymous ftp to cs.utk.edu in CS-04-527.pdf.


The challenge of efficiently retrieving files that are broken into segments and replicated across the wide-area is of prime importance to wide-area, peer-to-peer, and Grid file systems. Two differing algorithms addressing this challenge have been proposed and evaluated. While both have been successful in differing performance scenarios, there has been no unifying work that can view both algorithms under a single framework. In this paper, we define such a framework, where download algorithms are defined in terms of four dimensions: the number of simultaneous downloads, the degree of work replication, the failover strategy, and the server selection algorithm. We then explore the impact of varying parameters along each of these dimensions.

PDF of the paper

Citation Information