Method and device for accessing cached data based on binary identification

Abstract

The invention relates to a cache data access method and device based on binary identification. The method comprises the steps that a current cache node obtains first identification of a target data block in a data access request; the current cache node is searched for a first-stage mapping relation according to the current cache node; if the first-stage mapping relation is found, the current cache node obtains the target data block corresponding to a second mapping relation according to second identification corresponding to the first-stage mapping relation, and therefore access response information is sent according to the target data block. On the basis that the requirement of service provider content for individual naming is met, the cache node can recognize the repeated content with different content provider identification, repeated content stored in the cache node can be effectively reduced, and then the resource utilization rate of cache is improved.

Description

technical field [0001] The invention relates to computer network technology, in particular to a method and device for accessing cached data based on binary identification. Background technique [0002] At present, users' access to the Internet has gradually changed from a point-to-point communication-based method to a content-based method. The traditional TCP / IP network can only realize the transmission of data, and does not perceive the content of the transmitted data, which leads to the occurrence of a large amount of redundant traffic transmission on the network. [0003] At present, in order to solve the problem of redundant traffic transmission caused by content acquisition, whether it is the actual application in the Internet field or the future network conception of the academic research community, data caching is used as a basic means to meet the user's heavy-tailed distribution of content. Asynchronous access to traits. For example, the transparent network cache W...

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Problems solved by technology

[0004] However, these caching systems face the problem of not being able to identify the same content within the cache nodes, resulting in repeated storage of the same content, resulting in low cache utilization

For example, in the existing data caching methods, the data content in the cache is mostly identified by a Uniform Resource Locator (Uniform Resource Locator, URL), and the same content will be given different URLs at different content providers, resulting in It is difficult for the cache to identify objects with the same actual content based on the URL, which leads to repeated storage of the object in the cache

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