Data migration method of distributed database and distributed database migration system
A database and distributed technology, applied in the computer field, can solve problems such as inability to guarantee data consistency, database heterogeneity, etc.
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[0026] The solution of the invention mainly solves the data migration problem in the distributed database, and can ensure that the use of the application system is not affected during the data migration process, and the usability of the data is guaranteed. The specific idea is: migrate specific user data from one distributed sub-database to another according to requirements, and lock the user data during the migration process to ensure the consistency of user data. During the migration process, the user's data still points to the original database, and after the migration is successful, it points to the target database; if the migration fails, the user's original data will not change, and the data in the target database will be deleted, ensuring data availability and no garbage data.
[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanyi...
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