Invalidation sequencing in a content delivery framework

摘要

A computer-implemented method includes providing, at a first time and to a first group of CD services in a CDN, invalidation information relating to at least one resource; and providing the invalidation information, at a second time distinct from the first time and to a second group of CD services in the CDN, the second group of CD services being substantially distinct from the first group of CD services.

主权项

1. A computer-implemented method in a content delivery (CD) network comprising:
(A) providing, at a first time and to a first group of CD services in the content delivery network (CDN), invalidation information relating to at least one resource, wherein the invalidation information relating to at least one resource is selected from: (i) an invalidation command that specifies a single resource; and (ii) an invalidation command that specifies a group of resources, and wherein, when an invalidation command specifies a group of resources, the group is specified by a pattern; (B) providing the invalidation information, at a second time distinct from the first time and to a second group of CD services in the CDN, the second group of CD services being distinct from the first group of CD services; and (C) receiving invalidation feedback information from CD services in the first group of CD services, the invalidation feedback information relating to the CD services in the first group of CD services invalidation of the at least one resource, wherein, based on receipt of the invalidation information at a group of CD services, CD services in the group of CD services consider the at least one resource to be not useable, and wherein the second time is determined based on the invalidation feedback information.