Go-With-The-Winner: Client-Side Server Selection for Content Delivery

Provided by: Akamai Technologies
Topic: Data Centers
Format: PDF
Content delivery networks deliver much of the world's web and video content by deploying a large distributed network of servers. The authors model and analyze a simple paradigm for client-side server selection that is commonly used in practice where each user independently measures the performance of a set of candidate servers and selects the one that performs the best. For web (resp., video) delivery, they propose and analyze a simple algorithm where each user randomly chooses two or more candidate servers and selects the server that provided the best hitrate (resp., bitrate). They prove that the algorithm converges quickly to an optimal state where all users receive the best hitrate (resp., bitrate), with high probability.

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