Method and system for realizing data consistency

Abstract

The invention discloses a method and a system for realizing data consistency. A data access assembly receives user messages, dynamic structured query language (SQL) is generated according to the user messages, an extensive makeup language (XML) database configuration file is connected with a relationship database and obtains data, and then, the data is transmitted to an application layer; an overall buffer data set is inquired according to the overall property data access assembly object name and the data obtaining object name, the data is returned to the data access assembly when the data exists, and the data is transmitted to the application layer by the data access assembly; and according to the data access assembly object name and the data obtaining object name, an overall buffer memory assembly is created when no data exists, and the obtained data dynamic SQL, the data access assembly object name and the data obtaining object name are transmitted to the buffer memory assembly. The method and the system solve the problem of data consistency between a server buffer memory and the relationship database and have the advantages that the effectiveness of the server buffer memory data is ensured, the connection access to the relationship database is reduced, the access speed is accelerated, and the access efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of computer data processing, in particular to a method and system for realizing data consistency based on caching technology applied in the field of computer information technology. Background technique [0002] Caching technology is widely used, and this technology has the following advantages: [0003] (1) Reduce network bandwidth, thereby reducing network congestion; [0004] (2) Reduce client access delay; [0005] (3) Since some data can be directly returned to the client from the cache, the load on the server can be reduced; [0006] (4) If the remote server failure or network failure causes the remote server to fail to respond to the client's request, the client can obtain data from the cache, thereby increasing the robustness of the remote server. [0007] In information engineering, a large number of studies mainly focus on the data consistency between the client and server caches, but le...

AI Technical Summary

Problems solved by technology

The TTL mechanism is relatively easy to implement, but when the source object version of the website changes within the TTL period, the data consistency between the cached object and the original version of the server cannot be maintained.

That is to say, the client may access outdated data

Images