Provided by: mysql-server-5.7_5.7.42-0ubuntu0.18.04.1_amd64 
NAME
mysql_plugin - configure MySQL server plugins
SYNOPSIS
mysql_plugin [options] plugin {ENABLE|DISABLE}
DESCRIPTION
Note
mysql_plugin is deprecated as of MySQL 5.7.11 and removed in MySQL 8.0. Alternatives include loading
plugins at server startup using the --plugin-load or --plugin-load-add option, or at runtime using
the INSTALL PLUGIN statement.
The mysql_plugin utility enables MySQL administrators to manage which plugins a MySQL server loads. It
provides an alternative to manually specifying the --plugin-load option at server startup or using the
INSTALL PLUGIN and UNINSTALL PLUGIN statements at runtime.
Depending on whether mysql_plugin is invoked to enable or disable plugins, it inserts or deletes rows in
the mysql.plugin table that serves as a plugin registry. (To perform this operation, mysql_plugin invokes
the MySQL server in bootstrap mode. This means that the server must not already be running.) For normal
server startups, the server loads and enables plugins listed in mysql.plugin automatically. For
additional control over plugin activation, use --plugin_name options named for specific plugins, as
described in Section 5.5.1, “Installing and Uninstalling Plugins”.
Each invocation of mysql_plugin reads a configuration file to determine how to configure the plugins
contained in a single plugin library file. To invoke mysql_plugin, use this syntax:
mysql_plugin [options] plugin {ENABLE|DISABLE}
plugin is the name of the plugin to configure. ENABLE or DISABLE (not case-sensitive) specify whether to
enable or disable components of the plugin library named in the configuration file. The order of the
plugin and ENABLE or DISABLE arguments does not matter.
For example, to configure components of a plugin library file named myplugins.so on Linux or
myplugins.dll on Windows, specify a plugin value of myplugins. Suppose that this plugin library contains
three plugins, plugin1, plugin2, and plugin3, all of which should be configured under mysql_plugin
control. By convention, configuration files have a suffix of .ini and the same base name as the plugin
library, so the default configuration file name for this plugin library is myplugins.ini. The
configuration file contents look like this:
myplugins
plugin1
plugin2
plugin3
The first line in the myplugins.ini file is the name of the library file, without any extension such as
.so or .dll. The remaining lines are the names of the components to be enabled or disabled. Each value in
the file should be on a separate line. Lines on which the first character is '#' are taken as comments
and ignored.
To enable the plugins listed in the configuration file, invoke mysql_plugin this way:
mysql_plugin myplugins ENABLE
To disable the plugins, use DISABLE rather than ENABLE.
An error occurs if mysql_plugin cannot find the configuration file or plugin library file, or if
mysql_plugin cannot start the MySQL server.
mysql_plugin supports the following options, which can be specified on the command line or in the
[mysqld] group of any option file. For options specified in a [mysqld] group, mysql_plugin recognizes the
--basedir, --datadir, and --plugin-dir options and ignores others. For information about option files
used by MySQL programs, see Section 4.2.2.2, “Using Option Files”.
• --help, -? Display a help message and exit.
• --basedir=dir_name, -b dir_name The server base directory.
• --datadir=dir_name, -d dir_name The server data directory.
• --my-print-defaults=file_name, -b file_name The path to the my_print_defaults program.
• --mysqld=file_name, -b file_name The path to the mysqld server.
• --no-defaults, -p Do not read values from the configuration file. This option enables an
administrator to skip reading defaults from the configuration file.
With mysql_plugin, this option need not be given first on the command line, unlike most other MySQL
programs that support --no-defaults.
• --plugin-dir=dir_name, -p dir_name The server plugin directory.
• --plugin-ini=file_name, -i file_name The mysql_plugin configuration file. Relative path names are
interpreted relative to the current directory. If this option is not given, the default is plugin.ini
in the plugin directory, where plugin is the plugin argument on the command line.
• --print-defaults, -P Display the default values from the configuration file. This option causes
mysql_plugin to print the defaults for --basedir, --datadir, and --plugin-dir if they are found in
the configuration file. If no value for a variable is found, nothing is shown.
With mysql_plugin, this option need not be given first on the command line, unlike most other MySQL
programs that support --print-defaults.
• --verbose, -v Verbose mode. Print more information about what the program does. This option can be
used multiple times to increase the amount of information.
• --version, -V Display version information and exit.
COPYRIGHT
Copyright © 1997, 2023, Oracle and/or its affiliates.
This documentation is free software; you can redistribute it and/or modify it only under the terms of the
GNU General Public License as published by the Free Software Foundation; version 2 of the License.
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write
to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally
and which is also available online at http://dev.mysql.com/doc/.
AUTHOR
Oracle Corporation (http://dev.mysql.com/).