Method for checking data coherence and data synchronization, and distribution type system

A distributed system and consistent technology, applied in the field of communication, to improve development efficiency, achieve consistency verification and synchronization, and reduce the amount of calculation and communication
CN1816039AInactive Publication Date: 2006-08-09HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2006-08-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention includes following core points: dividing data into data groups; then, main system obtains check words in main and sub systems corresponding to each sub system data respectively; finally, main system compares words in main and sub systems corresponding to each sub system data; if consistent, then ending the check; otherwise, synchronizing the corresponding inconsistent data. Since data are divided into groups, the invention reduces amount of calculation, and amount of traffic in each checkup. Advantages are: easy for single-handed process, and raising flexibility of data check and synchronization process of main and sun system.
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Description

technical field

[0001] The invention relates to the communication field, in particular to a method and a distributed system for performing data consistency verification and synchronization. Background technique

[0002] A distributed system refers to a device or multiple devices that have multiple independent processing capabilities connected together through a certain communication method to jointly complete all functions. It usually consists of a main system and multiple subsystems. The main system can have a backup. For the main system in the backup state, the current main system considers it a subsystem (only the type of the subsystem is different from the common business subsystem). If all systems in the entire distributed system are peer-to-peer, there is no concept of main system and subsystem.

[0003] In a distributed system, since each system has independent processing capabilities, data needs to be kept in the main system and multiple subsystems. The main system...

Claims

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