Request processing in content distribution framework

摘要

A node in the content distribution network (CDN) receives a request for content and determines information about the request. If sufficient information about the content is determined, the request is assigned to the appropriate CD service to process the request, and if insufficient information about the content is determined, the request is Assigned to a comprehensive CD service. A comprehensive CD service processes the request and provides updated information about the content that is used to process future requests. An appropriate CD service that processes the request may also provide updated information about the content that is used to process future requests.