Shulou(Shulou.com)06/01 Report--

When trove uses innobackupex, the line backup is carried out for the whole database. When you create an instance from the backup set, you can restore the data in the backup set. However, because it is a full database backup, root,os_admin (the account used by trove to manage the database, and os_admin has root permission) will be restored to the password of the old database. Without password reset, trove will not be able to manage the database. Therefore, trove resets the password of the restored database.

Trove/guestagent/strategies/restore/mysql_impl.py 236 lines

Def post_restore (self): self._run_prepare () operating_system.chown (self.restore_location, 'mysql', None, force=True, as_root=True) self._delete_old_binlogs () self.reset_root_password () self.app.start_mysql ()

After restoring the data from the backup set, self._run_prepare () applies the log to the database, performing operations such as committing the log, and self_delete_old_binlogs () deletes the old log file because the log has been committed and does not need the old log file. Self.reset_root_password () resets the root to an empty password.

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