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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

Inactive Publication Date: 2006-08-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to provide a method and a distributed system for data consistency verification and synchronization to solve the problem in the prior art that data consistency verification and synchronization cannot be well realized when the data is incompatible. question

Method used

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

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Embodiment Construction

[0053] The first embodiment of the method of the present invention is asfigure 1 As shown, step S203 is first executed, and the main system sends a verification command to the subsystem. The specific implementation is as follows: a timer is generated at the beginning of the task of the main system, and the timing trigger is used to regularly trigger the main system, and send verification commands to the subsystems according to the order of polling. The main system can set whether to enable the verification of the subsystem, the verification period, and the verification of the key subsystem more frequently than the general subsystem.

[0054] The above verification commands do not require parameters. Since the verification command set in the present invention does not require parameters, it can be guaranteed that the command can be directly discarded when the subsystem does not support the verification feature, so that no side effects will occur when the data to be verified is ...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 马剑涛
Owner HUAWEI TECH CO LTD
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