Big Data Service Delivery Network

Big data service is a promising technology in Internet. Quality of service of big data services is a very important indicator. A service delivery network was presented in this paper to reduce service delays. The web services were distribution to the edge of the network to making it closer to users, so the network delay is small. A services distribution method with QoS guarantee was presented in this paper. Friendly degrees were measured in this method between the servers. According to the friendly degree determine the coverage areas of a copy. It takes up less resource under the premise of QoS guaranteeing.