PolarDB-X Backup is an open-source hot backup utility for PolarDB-X that doesn't lock your database during the backup. It is based on the Percona XtraBackup official release and is compatible with PolarDB-X. PolarDB-X Backup has proven to be very stable and efficient in production environment.
The installation instructions in the official document are here
PolarDB-X Backup is under the version 2 of the GNU General Public License(GPLv2). See the License file for details.