Up to MySQL 5.1.30, the InnoDB Plugin replaced the built-in InnoDB in MySQL
when the server was started with the option skip_innodb. Due to
MySQL Bug #42610,
it was impossible to replace the built-in InnoDB in MySQL with a plugin in MySQL
5.1.31 and 5.1.32. MySQL 5.1.33 introduced the option
ignore_builtin_innodb to allow InnoDB Plugin installation in the
binary release.
Up to MySQL 5.1.30, installing the binary InnoDB Plugin requires
that MySQL be shut down and restarted after issuing the
INSTALL PLUGIN statements. This is because the
INSTALL PLUGIN statement started the plugin with
default options. The options would only be read from the option file
(my.cnf or my.ini) after
restarting the server. The InnoDB Plugin worked around this
limitation by copying parameters from the internal data structures
of the built-in InnoDB in MySQL. Beginning with MySQL 5.1.33, the
INSTALL PLUGIN statement re-reads the option file
and passes all options to the plugin, even those that are not
recognized by the built-in InnoDB in MySQL.
To use the binary InnoDB Plugin with MySQL 5.1.30 or earlier,
you may follow the instructions given in
Section 9.3, “Installing the Precompiled InnoDB Plugin as a Shared Library”, with one
change: Replace the option ignore_builtin_innodb with
skip_innodb. The general steps for dynamically
installing the binary InnoDB Plugin are thus as follows:
Make sure the MySQL server is not running, using a “slow” shutdown.
Prepend each InnoDB option with loose_,
e.g., loose_innodb_file_per_table instead of
innodb_file_per_table, so that MySQL starts
even when InnoDB is unavailable.
Add skip_innodb and
default_storage_engine=MyISAM to the options,
to prevent the built-in InnoDB from starting.
Start the MySQL server.
INSTALL the InnoDB Plugin and the
Information Schema tables, using the supplied script or
equivalent commands.
Verify the installation of the plugins.
Shut down and reconfigure the MySQL server by editing the appropriate configuration file to use InnoDB as the default engine (if desired), and set appropriate configuration parameters to enable use of new InnoDB Plugin features.
This change only affects the binary distributions of MySQL and InnoDB Plugin. The procedure for building from source code is unchanged.