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Multiple data base data syne method

A data synchronization and database technology, applied in the direction of electrical digital data processing, special data processing applications, redundant data error detection in computing, etc., can solve the problems of low buffer utilization rate and large space occupation, etc., to achieve Strong real-time performance, improved efficiency, and high-efficiency effects

Inactive Publication Date: 2006-01-25
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. The original technology buffer stores all the changed data, which takes up a lot of space
[0007] 4. If the same index record is frequently modified, the original method will cause low buffer utilization

Method used

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Examples

Experimental program
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Embodiment Construction

[0037] The following is an implementation scheme applied to front-end and back-end data synchronization. The system architecture is as follows: figure 1 . The background system is the source module, and its database is a commercial database; the foreground system is the destination module, and its database is an in-memory database. After each modification of the background data, three measures must be taken: real-time synchronization, timer polling and all data synchronization, to synchronize data to multiple front-end modules at the same time. The data synchronization process is as follows figure 2 As shown, the specific implementation steps are as follows:

[0038] 1. Establish a data out-of-sync queue for each foreground module, initialize the out-of-sync queue and the transmission data control area (that is, queue management information), and set the polling cycle timer timer1.

[0039] target mode

Block ID

Each buffer

district status

lost ...

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Abstract

This invention discloses a data synchronization method for data of multiple databases, which applies a R-T separation system for data synchronization, in which, the data synchronization is guaranteed by real time synchronization, polling all fall-out-of-step queues by the timer and all data synchronization, which can increase efficiency of data synchronization and will not influence the data completeness even if information packets are lost occasionally, the buffer zone stores key words of corrected recordings only, so small storage space is needed.

Description

technical field [0001] The invention relates to the field of data synchronization of databases, in particular, provides a method for realizing data synchronization based on an asynchronous message mechanism for separating sending and receiving data. Background technique [0002] In many systems, there is a need for data synchronization to ensure that the data of multiple modules must be consistent, and real-time and correctness must be considered. The Chinese patent with application number 02103019.7 proposes a method for real-time data synchronization of master and slave boards in a communication system, and provides a scheme for master and slave synchronization of memory databases. This patent sets a data buffer respectively in the main board and the backup board; when the data of the main board is modified, write the modified data of the main board into the buffer; the buffer processes the data; when the amount of data in the buffer reaches a certain value, The real-time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F17/30
Inventor 肖旸胡首锋许诤
Owner ZTE CORP
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