Percona XtraBackup 1.6

Released on April 12, 2011 (Downloads are available here and from the Percona Software Repositories.)

Options Added

  • Added option --extra-lsndir to innobackupex. When specified for the backup phase, the option is passed to xtrabackup, and LSN information is stored with the file in the specified directory. This is needed so that LSN information is preserved during stream backup. (Vadim Tkachenko)
  • Added option --incremental-lsn to innobackupex. If specified, this option is passed directly to the xtrabackup binary and –incremental-basedir is ignored. (Vadim Tkachenko)
  • Added option --incremental-dir to innobackupex. This option is passed directly to the xtrabackup binary. (Vadim Tkachenko)
  • Added option --safe-slave-backup to innobackupex. (Daniel Nichter)
  • Added option --safe-slave-backup-timeout to innobackupex. (Daniel Nichter)

Other Changes

  • Eliminated some compiler warnings. (Stewart Smith)
  • Ported XtraBackup to MySQL 5.1.55, MySQL 5.5.9, Percona Server 5.1.55-12.6, and Percona Server 5.5.9-20.1 code bases. The xtrabackup_55 binary is now based on Percona Server 5.5, rather than MySQL 5.5. Support for building against InnoDB plugin in MySQL 5.1 has been removed. (Alexey Kopytov)
  • Updates were made to the built-in innobackupex usage docs. (Baron Schwartz, Fred Linhoss)
  • Added a manual page for XtraBackup. (Aleksandr Kuzminsky)
  • Disabled auto-creating ib_logfile* when innobackupex is called with --redo-only or with --incremental-dir. If necessary ib_logfile* can be created later with xtrabackup –prepare call. (Vadim Tkachenko)
  • Fixed xtrabackup exit code to improve portability: EXIT_SUCCESS on success and EXIT_FAILURE on a failure. (Aleksandr Kuzminsky)
  • For portability, the XtraBackup build script now tries to link with libaio only on Linux. (Aleksandr Kuzminsky)

Bugs Fixed

  • Bug #368945 - When option --prepare was specified, an error message was requesting that datadir be set, even though it’s not a required option. (Vadim Tkachenko)
  • Bug #420181 - The innobackupex script now backs up .CSV tables. (Valentine Gostev)
  • Bug #597384 - The innobackup --include option now handles non-InnoDB tables. (Vadim Tkachenko)
  • Bug #606981 - Streaming InnoDB files with tar4ibd could lead to filesystem hangs when InnoDB was configured to access data files with the O_DIRECT flag. The reason was that tar4ibd did not have support for O_DIRECT and simultaneous O_DIRECT + non-O_DIRECT access to a file on Linux is disallowed. Fixed innobackupex and tar4ibd to use O_DIRECT on input InnoDB files if the value of innodb_flush_method is O_DIRECT in the InnoDB configuration. (Alexey Kopytov)
  • Bug #646647 - Removed the bogus warning about invalid data in the Perl version string in innobackupex. (Baron Schwartz)
  • Bug #672384 - When no log files can be found in the backup directory while executing xtrabackup --stats, a descriptive error message is printed instead of crashing. (Alexey Kopytov)
  • Bug #688211 - Using the --password option with innobackupex to specify MySQL passwords containing special shell characters (such as “&”) did not work, even when the option value was properly quoted.
  • Bug #688417 - It’s now possible to do incremental backups for compressed InnoDB tables.
  • Bug #701767 - The script innobackupex-1.5.1 was renamed to innobackupex. Symbolic link innobackupex-1.5.1 was created for backupward compatibility. (Vadim Tkachenko)
  • Bug #703070 - xtrabackup_55 crashed with an assertion failure on non-Linux platforms. (Alexey Kopytov)
  • Bug #703077 - Building xtrabackup could fail on some platforms due to an incorrect argument to CMake. Fixed by changing the -DWITH_ZLIB argument to lowercase, because that’s what the CMake scripts actually expect. (Alexey Kopytov)
  • Bug #713799 - Dropping a table during a backup process could result in assertion failure in xtrabackup. Now it continues with a warning message about the dropped table. (Alexey Kopytov)
  • Bug #717784 - Performing parallel backups with the --parallel option could cause xtrabackup to fail with the “cannot mkdir” error. (Alexey Kopytov)
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