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# NAME
MySQLTuner 2.8.10 - MySQL High Performance Tuning Script
# IMPORTANT USAGE GUIDELINES
To run the script with the default options, run the script without arguments
Allow MySQL server to run for at least 24-48 hours before trusting suggestions
Some routines may require root level privileges (script will provide warnings)
You must provide the remote server's total memory when connecting to other servers
# CONNECTION AND AUTHENTICATION
--host <hostname> Connect to a remote host to perform tests (default: localhost)
--socket <socket> Use a different socket for a local connection
--pipe Connect to a local Windows database using named pipes
--pipe_name <na> Use a different pipe name for a local connection
--port <port> Port to use for connection (default: 3306)
--protocol tcp Force TCP connection instead of socket
--user <username> Username to use for authentication
--userenv <envvar> Name of env variable which contains username to use for authentication
--pass <password> Password to use for authentication
--passenv <envvar> Name of env variable which contains password to use for authentication
--ssl-ca <path> Path to public key
--mysqladmin <path> Path to a custom mysqladmin executable
--mysqlcmd <path> Path to a custom mysql executable
--defaults-file <path> Path to a custom .my.cnf
--defaults-extra-file <path> Path to an extra custom config file
--server-log <path> Path to explicit log file (error_log)
# CLOUD SUPPORT
--cloud Enable cloud mode. This is a generic flag for any cloud provider.
--azure Enable Azure-specific support.
--ssh-host <hostname> The SSH host for cloud connections.
--ssh-user <username> The SSH user for cloud connections.
--ssh-password <password> The SSH password for cloud connections.
--ssh-identity-file <path> The path to the SSH identity file for cloud connections.
# PERFORMANCE AND REPORTING OPTIONS
--skipsize Don't enumerate tables and their types/sizes (default: on)
(Recommended for servers with many tables)
--json Print result as JSON string
--prettyjson Print result as JSON formatted string
--skippassword Don't perform checks on user passwords (default: off)
--checkversion Check for updates to MySQLTuner (default: don't check)
--updateversion Check for updates to MySQLTuner and update when newer version is available (default: don't check)
--forcemem <size> Amount of RAM installed in megabytes
--forceswap <size> Amount of swap memory configured in megabytes
--passwordfile <path> Path to a password file list (one password by line)
--cvefile <path> CVE File for vulnerability checks
--outputfile <path> Path to a output txt file
--reportfile <path> Path to a report txt file
--template <path> Path to a template file
--dumpdir <path> Path to a directory where to dump information files
--feature <feature> Run a specific feature (see FEATURES section)
--dumpdir <path> information_schema tables and sys views are dumped in CSV in this path
# OUTPUT OPTIONS
--silent Don't output anything on screen
--verbose Print out all options (default: no verbose, dbstat, idxstat, sysstat, tbstat, pfstat)
--color Print output in color
--nocolor Don't print output in color
--noprettyicon Print output with legacy tag [OK], [!!], [--], [CMD], ...
--nogood Remove OK responses
--nobad Remove negative/suggestion responses
--noinfo Remove informational responses
--debug Print debug information
--experimental Print experimental analysis (may fail)
--nondedicated Consider server is not dedicated to Db server usage only
--noprocess Consider no other process is running
--dbstat Print database information
--nodbstat Don't print database information
--tbstat Print table information
--notbstat Don't print table information
--colstat Print column information
--nocolstat Don't print column information
--idxstat Print index information
--noidxstat Don't print index information
--nomyisamstat Don't print MyIsam information
--sysstat Print system information
--nosysstat Don't print system information
--nostructstat Don't print table structures information
--pfstat Print Performance schema
--nopfstat Don't print Performance schema
--plugininfo Print Plugin information
--noplugininfo Don't print Plugin information
--bannedports Ports banned separated by comma (,)
--server-log Define specific error_log to analyze
--maxportallowed Number of open ports allowable on this host
--buffers Print global and per-thread buffer values
# VERSION
Version 2.8.17
=head1 PERLDOC
You can find documentation for this module with the perldoc command.
perldoc mysqltuner
## INTERNALS
[https://github.com/jmrenouard/MySQLTuner-perl/blob/master/INTERNALS.md](https://github.com/jmrenouard/MySQLTuner-perl/blob/master/INTERNALS.md)
Internal documentation
# AUTHORS
Major Hayden - major@mhtx.net
Jean-Marie Renouard - jmrenouard@gmail.com
# CONTRIBUTORS
- Matthew Montgomery
- Paul Kehrer
- Dave Burgess
- Jonathan Hinds
- Mike Jackson
- Nils Breunese
- Shawn Ashlee
- Luuk Vosslamber
- Ville Skytta
- Trent Hornibrook
- Jason Gill
- Mark Imbriaco
- Greg Eden
- Aubin Galinotti
- Giovanni Bechis
- Bill Bradford
- Ryan Novosielski
- Michael Scheidell
- Blair Christensen
- Hans du Plooy
- Victor Trac
- Everett Barnes
- Tom Krouper
- Gary Barrueto
- Simon Greenaway
- Adam Stein
- Isart Montane
- Baptiste M.
- Cole Turner
- Major Hayden
- Joe Ashcraft
- Jean-Marie Renouard
- Stephan GroBberndt
- Christian Loos
- Long Radix
# SUPPORT
Bug reports, feature requests, and downloads at http://mysqltuner.pl/
Bug tracker can be found at https://github.com/jmrenouard/MySQLTuner-perl/issues
Maintained by Jean-Marie Renouard (jmrenouard\\@gmail.com) - Licensed under GPL
# SOURCE CODE
[https://github.com/jmrenouard/MySQLTuner-perl/](https://github.com/jmrenouard/MySQLTuner-perl/)
git clone https://github.com/jmrenouard/MySQLTuner-perl/.git
# COPYRIGHT AND LICENSE
Copyright (C) 2006-2023 Major Hayden - major@mhtx.net
\# Copyright (C) 2015-2023 Jean-Marie Renouard - jmrenouard@gmail.com
For the latest updates, please visit http://mysqltuner.pl/
Git repository available at https://github.com/jmrenouard/MySQLTuner-perl/
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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