Percona Xtrabackup 2.2.x support for MySQL <= 5.6.8

[deviantony]

It seems that there is an issue with the Percona Xtrabackup 2.2.x versions.

The package is currently distributed on Ubuntu via the xtrabackup package, you need to install percona-xtrabackup-21 to use the scripts.

This issue will follow the evolution on 2.2.x support.

[deviantony]

There is a bug with the Percona Xtrabackup 2.2.* tool related to the setting innodb_log_file_size in the configuration file. If the parameter is missing, xtrabackup will use a default hardcoded value based on MySQL >= 5.6.8.

This value differs on MySQL <= 5.6.8, to use xtrabackup with these versions you need to specify the missing setting in the configuration file.

By default, this value is 5M:

[mysqld]
innodb_log_file_size = 5M

[deviantony]

Related bug: https://bugs.launchpad.net/percona-xtrabackup/+bug/1334062

[deviantony]

I'll keep the issue open until the bug at Percona is fixed.

[deviantony]

The bug has been fixed in Xtrabackup 2.2.6 !