Cross-system data synchronous processing method, device and system

Abstract

The embodiment of the invention discloses a cross-system data synchronous processing method, device and system. The method comprises: a first system synchronizing parameter data in a database into thedatabase of a second system and establishing a message flow with the second system; the second system caching the parameter data into a memory of a corresponding application server; when it is determined that the data in the first system changes according to the message flow, the registration center obtaining change information and sends the change information to an application server; the application server deleting the corresponding parameter data according to the change information; when the transaction occurs and the parameter data needs to be accessed, the application server judging whether the parameter data corresponding to the transaction exists in the memory or not; and when it is confirmed that the transaction does not exist, the application server acquiring parameter data corresponding to the transaction from a database of the second system and storing the parameter data in a memory. By utilizing the embodiment of the invention, the transaction performance can be improved while the real-time synchronization of the system parameters is ensured.

Description

technical field [0001] The embodiments of this specification belong to the technical field of distributed systems, and in particular relate to a method, device, and system for synchronous processing of cross-system data. Background technique [0002] In the banking system, two or more systems often require the same set of parameter data. Usually parameter data is maintained in one of the systems, and these parameter data are generally characterized by high access frequency and much lower update frequency. For example, the centralized main business system and the distributed auxiliary business system need the same set of parameter data, while the parameter data is maintained in the centralized main business system. At this point, it is necessary to synchronize the data of the centralized main business system to the distributed auxiliary business system. [0003] At present, there are two commonly used cross-system parameter synchronization mechanisms: one is to maintain par...

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Problems solved by technology

In this way, the auxiliary business system needs to access the database every time when the transaction obtains parameter data. For the auxiliary business system is a distributed system and uses a memory cache, for example, the data change cannot be synchronized to the application cache, which will lead to The transaction has been accessing expired data in memory, causing the transaction to fail or return incorrect data

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