Upgrading from MariaDB 5.3 to MariaDB 5.5

What you need to know

There are no changes in table or index formats between and , so on most servers the upgrade should be painless.

How to upgrade

The suggested upgrade procedure is:

1. For Windows, see instead.

2. Shutdown

3. Take a backup (this is the perfect time to take a backup of your databases)

4. Uninstall

• Ubuntu and Debian packages do this automatically when they are installed; Red Hat, CentOS, and Fedora packages do not

• mysql_upgrade does two things:

  1. Upgrades the permission tables in the mysql database with some new fields

1. Add new options to to enable features

• If you change my.cnf then you need to restart mysqld

Incompatible changes between 5.3 and 5.5

As mentioned previously, on most servers upgrading from 5.5 should be painless. However, there are some things that have changed which could affect an upgrade:

XtraDB options that have changed default values

Options that have been removed or renamed

Percona, the provider of , does not provide all earlier XtraDB features in the 5.5 code base. Because of that, can't provide them either. The following options are not supported by XtraDB 5.5. If you are using them in any of your my.cnf files, you should remove them before upgrading to 5.5.

• ; Use instead.

• ; Use instead (and in ).

• innodb_blocking_lru_restore; Use instead.

Notes

1. If using a MariaDB apt or yum , it is often enough to replace instances of '5.3' with '5.5' and then run an update/upgrade. For example, in Ubuntu/Debian update the MariaDB sources.list entry from something that looks similar to this:

To something like this:

And then run

And in Red Hat, CentOS, and Fedora, change the baseurl line from something that looks like this:

To something that looks like this:

And then run

See also

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