Case:
Due to temporary power off, using Kill -9 to stop the MySQL service process, all these may destroy mysql data files.If the service is changing the file when being disturbed, the file may leave an error or inconsistent state.Because such destruction is sometimes not easy to find, it may be a long time later when you find this error.So when you find this problem, maybe all the backups have the same mistake.
Solution:
The engineers are hand -made and fragmented, and after 4 hours of processing and analysis, the complete data is restored.Engineers suggested that when there is a problem with data, it is necessary to send and check professional company services in time.