Review: A survey on content-centric technologies for the current Internet: CDN and P2P solutions
Computer Communications
A distributed control law for load balancing in content delivery networks
IEEE/ACM Transactions on Networking (TON)
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Load balancing for distributed servers is a common issue in many applications and has been extensively studied. Several distributed load balancing schemes have been proposed that pro-actively route individual requests to appropriate servers to best balance the load and shorten request response tame. These schemes do not require a centralized load balancer. Instead, each server is responsible for determining, for each request it receives from a client, to which server in the pool the request should be forworded for processing. We propose a new request routing scheme that is more scalable to increasing number of servers and request load than the existing schemes. The method combines random server selection and next-neighbor load sharing techniques that together prevent the staleness of load information from building up when the number of servers increases. Our simulation shows that it outperforms existing schemes under a piggyback-based load update model.