Cache sharing method, devices and system in content delivery network

Abstract

Embodiments of the invention provide a cache sharing method, devices and a system in a content delivery network. The method comprises the steps that a first cache server receives a service request, and acquires a first uniform resource locator (URL) of the content requested by the service request; the first cache server computes the first URL according to a computing processing rule so as to obtain a first computing processing result; the first cache server, according to a corresponding rule, determines a cache server identification corresponding to the first computing processing result, and judges whether the cache server identification is consistent with the identification of the first cache server; if yes, the first cache server determines that the first cache server processes the service request; if not, the first cache server determines that a second cache server corresponding to the cache server identification processes the service request. Through adoption of the method, the communication efficiency of the content delivery network can be improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a cache sharing method, device and system in a content distribution network. Background technique [0002] The content delivery network (Content Delivery Network, referred to as CDN), by adding a new layer of network architecture to the existing Internet Protocol (Internet Protocol, referred to as IP) transmission network, the content of the website is published to the closest to the user terminal The "edge" of the network enables user terminals to obtain the required content nearby, and improves the response speed of user terminals accessing the network. [0003] In the existing CDN server cluster system, multiple cache servers and origin server servers are included. The multiple cache servers implement sharing among the multiple cache servers based on the Internet Cache Protocol (ICP for short). When any cache server receives the service request, if it f...

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Problems solved by technology

[0004] However, when the CDN computer room cluster system includes more cache servers, when any cache server misses a service request, the any cache server sends a query message to all other cache servers and waits for the response message from all other cache servers , not only the signaling interaction is complicated, but also leads to access delay and low communication efficiency

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