Percona XtraBackup enables MySQL backups without blocking user queries, making it ideal for companies with large data sets and mission-critical applications that cannot tolerate long periods of downtime. Offered free as an open source solution, Percona XtraBackup drives down backup costs while providing unique features for MySQL backups.
This release is the current GA (Generally Available) stable release in the 2.3 series. New Features
Percona XtraBackup now uses hardware accelerated implementation of crc32 where it is supported.
Percona XtraBackup has implemented new options: –tables-exclude and –databases-exclude that work similar to –tables and –databases options, but exclude given names/paths from backup.
The xbstream binary now supports parallel extraction with the --parallel option.
The xbstream binary now supports following new options: --decrypt, --encrypt-threads, --encrypt-key, and --encrypt-key-file. When --decrypt option is specified xbstream will automatically decrypt encrypted files when extracting input stream. Either --encrypt-key or --encrypt-key-file options must be specified to provide encryption key, but not both. Option --encrypt-threads specifies the number of worker threads doing the encryption, default is 1.
xtrabackup would not create fresh InnoDB redo logs when preparing incremental backup. Bug fixed #1669592.
xtrabackup --export can now export tables that have more than 31 index. Bug fixed #1089681.
[*]Unrecognized character x01; marked by message could be seen if backups were taken with the version check enabled. Bug fixed #1651978.
Release notes with all the bugfixes for Percona XtraBackup 2.3.8 are available in our online documentation. Bugs can be reported on the launchpad bug tracker.