A data synchronization method, system and storage medium

Abstract

In the data synchronization method, system and storage medium provided by the present invention, the primary front-end processor sends the first message including the first data to the first external system, and the backup front-end processor obtains at least the first data and restarts the timer ; After obtaining the first data, the standby front-end processor sends the first data to the first external system or the second external system; the standby front-end processor receives the first response message, and sends a response result to the active front-end processor, and the second The first response message is returned to the backup front-end processor by the external system that received the first data, and the response result is the first response message or the information representing the first response message received by the backup front-end processor; if the main front-end processing If the timer receives the second response message and the response result within the first preset time period from the moment of restarting the timer, it determines that this data synchronization is successful, wherein the second response message is received by the first external system After the first packet is returned to the active front-end processor.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a data synchronization method, system and storage medium. Background technique [0002] In a large-scale communication network system, a front-end processor is often configured, and generally a front-end processor is a computer. Its main functions are: character or data segmentation and reorganization, data code conversion between terminals, error detection and recovery, protocol support for different terminals, data exchange between terminals, polling terminals, and Data forwarding function. [0003] In order to improve the reliability, availability, maintainability and security of the system, redundant front-end processors (including active front-end processors and backup front-end processors) have become industry standard configurations. Redundant front-end processors can be divided into three redundant modes: cold standby, warm standby and hot standby acco...

AI Technical Summary

Problems solved by technology

[0010] 2. The conventional hot standby redundancy mode is still used, but the external system is required to only accept the data of one of the hot standby hosts and completely discard the data of the other host, which is actually a degraded mode

But this method is ultimately a shift of responsibility, because the source of this data jitter lies in the redundant host. In addition, this method puts forward additional requirements on the external system and increases the burden on the external system.

Images