Decompress and prepare a compressed backup¶
Before you can prepare the backup you’ll need to uncompress all the files.
Percona XtraBackup has implemented --decompress option
that can be used to decompress the backup.
$ xtrabackup --decompress --target-dir=/data/compressed/
Note
--parallel can be used with --decompress option to decompress multiple files simultaneously.
Percona XtraBackup does not automatically remove the compressed files. In order to clean up the backup directory you should use --remove-original option. Even if they’re not removed these files will not be copied/moved over to the datadir if --copy-back or --move-back are used.
When the files are uncompressed you can prepare the backup with the --prepare option:
$ xtrabackup --prepare --target-dir=/data/compressed/
Confirmation message
InnoDB: Starting shutdown...
InnoDB: Shutdown completed; log sequence number 9293846
170223 13:39:31 completed OK!
Now the files in /data/compressed/ are ready to be used by the server.
The next step is to restore the backup.
Get expert help¶
If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional support and services.