Percona XtraBackup 2.4.7Percona announces the GA release of Percona XtraBackup 2.4.7 on April 18, 2017. You can download it from our download site and apt and yum repositories.

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.

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.
Bugs Fixed:
  • Backups were missing *.isl files for general tablespace. Bug fixed #1658692.
  • In 5.7, MySQL changed default checksum algorithm to crc32, while xtrabackup was using innodb. This caused xtrabackup to perform extra checksum calculations which were not needed. Bug fixed #1664405.
  • For system tablespaces consisting of multiple files xtrabackup updated LSN only in first file. This caused MySQL versions lower than 5.7 to fail on startup. 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 2.4.7 are available in our online documentation. Please report any bugs to the launchpad bug tracker.