High-Performance Centralized Content Delivery Infrastructure: Models and Asymptotics

We consider a centralized content delivery infrastructure where a large number of storage-intensive files are replicated across several collocated servers. To achieve scalable mean delays in file downloads under stochastic loads, we allow multiple servers to work together as a pooled resource to mee...

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Bibliographic Details
Published inIEEE/ACM transactions on networking Vol. 23; no. 5; pp. 1674 - 1687
Main Authors Shah, Virag, de Veciana, Gustavo
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Allocations
Asymptotic properties
Content delivery infrastructure
Delay
Delays
Downloading
Dynamic scheduling
Dynamical systems
Dynamics
IEEE transactions
Infrastructure
Load modeling
performance models
Resource management
resource pooling
Servers
Stochastic processes
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Summary:We consider a centralized content delivery infrastructure where a large number of storage-intensive files are replicated across several collocated servers. To achieve scalable mean delays in file downloads under stochastic loads, we allow multiple servers to work together as a pooled resource to meet individual download requests. In such systems, basic questions include: How and where to replicate files? What is the impact of dynamic service allocation across request types, and whether such allocations can provide substantial gains over simpler load balancing policies? What are tradeoffs among performance, reliability and recovery costs, and energy? This paper provides a simple performance model for large systems towards addressing these basic questions.
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content type line 23
ISSN:1063-6692
1558-2566
DOI:10.1109/TNET.2015.2461132