Database elastic method, database elastic device and database elastic service system

The invention relates to a database elastic method, a database elastic device and a database elastic service system, is applied to the technical field of display, and can improve the elastic efficiency of a local disk database under a cloud native architecture. The method comprises the steps of receiving an elastic request for a target database in a local disk, wherein the target database comprises a first database serving as a standby database and a second database serving as a main database; determining an elastic transformation and distribution scheme for the target database; wherein the elastic transformation and distribution scheme comprises the following steps: carrying out elastic transformation and distribution processing on a first database to obtain a third database after transformation and distribution; main and standby switching is carried out on a third database and a second database, the third database is switched to be the main database of the target database, and the second database is switche