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Distributed cache method and system based on improved consistent hashing

A distributed cache and consistency technology, applied in the field of information systems, can solve the problems of waste of system resources, poor reliability and availability, etc., achieve the effect of reducing the number of synchronizations, avoiding waste of resources, and improving reliability and availability

Active Publication Date: 2016-04-20
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the current distributed cache system is either poor in reliability and availability, or the system resources are wasted due to machine accumulation

Method used

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  • Distributed cache method and system based on improved consistent hashing
  • Distributed cache method and system based on improved consistent hashing
  • Distributed cache method and system based on improved consistent hashing

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Embodiment Construction

[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0042] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0044] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authoriz...

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Abstract

The invention discloses a distributed cache method and system based on an improved consistent hashing. Included are a plurality of node servers. Each node server comprises a main cache region and a copy cache region. For each node server, the main cache region is used for caching, according to a consistent hashing algorithm, data written by a user or in need of access on the node server; and the copy cache region is used for caching, according to the consistent hashing algorithm, data of the main cache region of the previous node server on a hashing ring constituted by all the node servers. The invention effectively improves the reliability and availability of the system, and can also avoid a waste of resources and reduce the number of times of cached data synchronization.

Description

technical field [0001] The invention belongs to the field of information systems, and in particular relates to a method and system based on an improved consistent hash distributed cache. Background technique [0002] With the development of the Internet, especially the mobile Internet, the number of users is increasing, and the response speed required is getting faster and faster. In order to speed up the access speed, a comparative method is to use cache in the information system. Cache technology stores hot data and shortens the distance between cluster object data and applications. It is a key technology to speed up data access and provide distributed data sharing. This technology plays a very important role in improving system scalability and ensuring system reliability. . [0003] A large number of distributed caches exist in information systems. There are two main types of distributed cache systems: [0004] One is that the cached content of each server is the same, ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06
Inventor 李明奚晓音朱源薛尽飞邓丽华
Owner CHINA TELECOM CORP LTD
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