Percona XtraBackup 1.5-Beta

Released December 13, 2010 (downloads)

This release adds additional functionality to Percona XtraBackup 1.4, the current general availability version of Percona XtraBackup. This is a beta release.

Functionality Added or Changes

  • Support for MySQL 5.5 databases has been implemented. (Yasufumi Kinoshita)
  • Percona XtraBackup can now be built from the MySQL 5.1.52, MySQL 5.5.7, or Percona Server 5.1.53-12 code bases (fixes bug #683507). (Alexey Kopytov)
  • The program is now distributed as three separate binaries:
    • xtrabackup - for use with Percona Server with the built-in InnoDB plugin
    • xtrabackup_51 - for use with MySQL 5.0 & 5.1 with built-in InnoDB
    • xtrabackup_55 - for use with MySQL 5.5 (this binary is not provided for the FreeBSD platform)
  • Backing up only specific tables can now be done by specifying them in a file, using the xtrabackup --tables-file. (Yasufumi Kinoshita & Daniel Nichter)
  • Additional checks were added to monitor the rate the log file is being overwritten, to determine if Percona XtraBackup is keeping up. If the log file is being overwritten faster than Percona XtraBackup can keep up, a warning is given that the backup may be inconsistent. (Yasufumi Kinoyasu)
  • The Percona XtraBackup binaries are now compiled with the -O3 gcc option, which may improve backup speed in stream mode in some cases.
  • It is now possible to copy multiple data files concurrently in parallel threads when creating a backup, using the xtrabackup --parallel option. See The xtrabackup Option Reference and Parallel Backups. (Alexey Kopytov)

Bugs Fixed

  • Bug #683507 - xtrabackup has been updated to build from the MySQL 5.1.52, MySQL 5.5.7, or Percona Server 5.1.53-12 code bases. (Alexey Kopytov)