Method for synchronizing wide area data between data centers based on cache

A data synchronization and cache technology, applied in the field of communication, can solve the problems of large bandwidth occupation, long synchronization time, large investment cost, etc., and achieve the effects of small bandwidth occupation, high reliability and high synchronization efficiency.

Active Publication Date: 2013-04-03
NARI TECH CO LTD
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Problems solved by technology

Even with the synchronization function of the remote data center, there are disadvantages such as long synchronization t

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  • Method for synchronizing wide area data between data centers based on cache
  • Method for synchronizing wide area data between data centers based on cache
  • Method for synchronizing wide area data between data centers based on cache

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[0024] In the following, the cache-based wide-area data synchronization method between data centers of the present invention will be further described with reference to the accompanying drawings.

[0025] See figure 1 with figure 2 , The present invention is a cache-based wide-area data synchronization method between data centers, which uses remote data center synchronization as the main purpose, improves local data access efficiency as a secondary purpose, and takes incremental update, incremental synchronization and file backup as the secondary purpose. The method provides a wide-area data synchronization method between data centers that has high local and remote access efficiency, a small amount of synchronously transmitted data, and can ensure system consistency even when the remote server is offline for a period of time. It includes the following steps :

[0026] (1) The objects to be synchronized are all real-time data in the memory, and the files on the disk must be read in...

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Abstract

The invention discloses a method for synchronizing wide area data between data centers based on a cache. The method is characterized by comprising the following steps of: (1) initializing synchronous systems, namely filling data frequently accessed by the systems into a memory according to the configuration by a server of a local data center, communicating with each remote data center required to be synchronized, comparing the difference of the data, and then performing synchronization; (2) performing read-write access on the data, namely directly reading and writing the cache in the memory through an interface, and writing the data in the memory into a hard disk by one or more independent threads in a service program of a background; and (3) performing remote synchronization on the data, namely periodically and directly synchronizing the contents called and modified by the interface from the memory to a remote data center, and executing the same interface calling by the remote data center to complete data synchronization. The method has the advantages of high synchronizing efficiency, small occupied bandwidth, high reliability, good transplantability and simple deployment, and solves the problem of inconsistency of other abnormities when the systems run.

Description

technical field [0001] The invention relates to a cache-based wide-area data synchronization method between data centers, belonging to the technical field of communication. Background technique [0002] Existing real-time data management systems generally use a data center as a unit to perform distributed management of data. Even with the synchronization function of the remote data center, there are still disadvantages such as long synchronization time and large bandwidth occupation, and often the system is very complicated, which brings high investment costs to users. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a wide-area data synchronization method between data centers with high synchronization efficiency, small occupied bandwidth, high reliability, good portability and simple deployment. [0004] To achieve the above object, the technical solution of the present invention is...

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Application Information

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IPC IPC(8): H04L29/06
Inventor 高原顾文杰任升沙一川
Owner NARI TECH CO LTD
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