Data migration method, device, storage medium and electronic equipment

Abstract

Embodiments of the present invention provide a data migration method, device, storage medium, and electronic equipment. The data migration method includes: acquiring a data migration signal; determining the first original system according to the first original system information, determining the target system according to the target system information, Determine the first difference data and the first difference data amount according to the first original system data and the target system data according to the predetermined cycle, and migrate the first difference data to the target system; when the first difference data amount acquired according to the predetermined cycle is less than the first data When the number of consecutive times of the volume threshold reaches the first predetermined number of times, in response to the data request, the data to be written is simultaneously written into the first original system and the target system, the data to be read is read from the first original system, and passed through the first original system Return the data to be read obtained from the first source system. The data migration method, device, storage medium and electronic equipment provided by the embodiments of the present invention can meet the requirements for smooth and stable reading and writing of data during the data migration process.

Description

technical field [0001] The embodiments of the present invention relate to the computer field, and in particular, to a data migration method, device, storage medium, and electronic equipment. Background technique [0002] With the development of business, we often encounter data migration requirements due to the upgrade of business functions, the merger of similar business systems, and the upgrade of system architecture, that is, to migrate data from the first original system to the target system. [0003] The existing data migration method usually stops access to the data after receiving the data migration instruction, no longer allows reading and writing operations on the data, and migrates the data to the target system by backing up the data of the first original system In the process, the external access to the target system is not allowed until the data migration is completed, or during the process, data writing or reading errors occur. [0004] Therefore, how to realiz...

AI Technical Summary

Problems solved by technology

[0003] The existing data migration method usually stops access to the data after receiving the data migration instruction, no longer allows reading and writing operations on the data, and migrates the data to the target system by backing up the data of the first original system In the process, the external access to the target system is allowed after the data migration is completed, or during the process, data writing or reading errors occur

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