LAYERED REQUEST PROCESSING WITH REDIRECTION AND DELEGATION IN A CONTENT DELIVERY NETWORK (CDN)

摘要

In a content delivery network (CDN a method includes: receiving a request for a CDN service of a particular type, wherein a CDN service of said particular type defines a fixed number of configurable layers of request processing, sequentially from a first layer to a last layer; and processing said request, starting at said first layer, said processing being based on a modifiable runtime environment, said processing continuing conditionally through each of said layers in turn until either said request is terminated by one of said layers or said last layer processes said request. A layer may cause some of the processing of a request to be handled by another service. The CDN service may be selected from: delivery services, collector services, reducer services, rendezvous services, configuration services, and control services.

主权项

1. A computer-implemented method operable in a content delivery network (CDN), and operable on a device comprising hardware including memory and at least one processor, the method comprising:
(A) at a first CDN service instance of a particular type, receiving a request for a CDN service of said particular type, wherein a CDN service of said particular type defines a number of configurable layers of request processing, sequentially from a first layer to a last layer; (B) said first CDN service instance processing said request, starting at said first layer, said processing being based on a modifiable runtime environment comprising a modifiable request environment, wherein said modifiable request environment for said first layer is based on said request initially received in (A), and wherein processing of said request by one of said layers comprises:
(B)(1) causing at least some of said request to be processed by a second CDN service.