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Jean-Marie Renouard
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Update Vulnerabilities list
Indenting mysqltuner Update Usage information
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‎USAGE.md

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# NAME
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MySQLTuner 1.8.1 - MySQL High Performance Tuning Script
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# IMPORTANT USAGE GUIDELINES
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To run the script with the default options, run the script without arguments
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Allow MySQL server to run for at least 24-48 hours before trusting suggestions
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Some routines may require root level privileges (script will provide warnings)
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You must provide the remote server's total memory when connecting to other servers
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# CONNECTION AND AUTHENTICATION
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--host <hostname> Connect to a remote host to perform tests (default: localhost)
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--socket <socket> Use a different socket for a local connection
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--port <port> Port to use for connection (default: 3306)
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--user <username> Username to use for authentication
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--userenv <envvar> Name of env variable which contains username to use for authentication
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--pass <password> Password to use for authentication
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--passenv <envvar> Name of env variable which contains password to use for authentication
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--ssl-ca <path> Path to public key
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--mysqladmin <path> Path to a custom mysqladmin executable
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--mysqlcmd <path> Path to a custom mysql executable
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--defaults-file <path> Path to a custom .my.cnf
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--server-log <path> Path to explict log file
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# PERFORMANCE AND REPORTING OPTIONS
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--skipsize Don't enumerate tables and their types/sizes (default: on)
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(Recommended for servers with many tables)
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--skippassword Don't perform checks on user passwords(default: off)
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--checkversion Check for updates to MySQLTuner (default: don't check)
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--updateversion Check for updates to MySQLTuner and update when newer version is available (default: don't check)
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--forcemem <size> Amount of RAM installed in megabytes
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--forceswap <size> Amount of swap memory configured in megabytes
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--passwordfile <path> Path to a password file list(one password by line)
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# OUTPUT OPTIONS
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--silent Don't output anything on screen
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--nogood Remove OK responses
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--nobad Remove negative/suggestion responses
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--noinfo Remove informational responses
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--debug Print debug information
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--noprocess Consider no other process is running
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--dbstat Print database information
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--nodbstat Don't Print database information
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--tbstat Print table information
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--notbstat Don't Print table information
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--colstat Print column information
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--nocolstat Don't Print column information
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--idxstat Print index information
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--noidxstat Don't Print index information
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--sysstat Print system information
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--nosysstat Don't Print system information
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--pfstat Print Performance schema
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--nopfstat Don't Print Performance schema
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--verbose Prints out all options (default: no verbose, dbstat, idxstat, sysstat, tbstat, pfstat)
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--bannedports Ports banned separated by comma(,)
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--maxportallowed Number of ports opened allowed on this hosts
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--cvefile <path> CVE File for vulnerability checks
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--nocolor Don't print output in color
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--json Print result as JSON string
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--buffers Print global and per-thread buffer values
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--outputfile <path> Path to a output txt file
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--reportfile <path> Path to a report txt file
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--template <path> Path to a template file
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# PERLDOC
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You can find documentation for this module with the perldoc command.
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perldoc mysqltuner
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## INTERNALS
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[https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md)
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Internal documentation
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# AUTHORS
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Major Hayden - [email protected]
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# CONTRIBUTORS
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- Matthew Montgomery
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- Paul Kehrer
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- Dave Burgess
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- Jonathan Hinds
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- Mike Jackson
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- Nils Breunese
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- Shawn Ashlee
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- Luuk Vosslamber
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- Ville Skytta
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- Trent Hornibrook
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- Jason Gill
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- Mark Imbriaco
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- Greg Eden
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- Aubin Galinotti
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- Giovanni Bechis
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- Bill Bradford
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- Ryan Novosielski
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- Michael Scheidell
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- Blair Christensen
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- Hans du Plooy
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- Victor Trac
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- Everett Barnes
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- Tom Krouper
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- Gary Barrueto
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- Simon Greenaway
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- Adam Stein
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- Isart Montane
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- Baptiste M.
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- Cole Turner
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- Major Hayden
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- Joe Ashcraft
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- Jean-Marie Renouard
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- Stephan GroBberndt
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- Christian Loos
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# SUPPORT
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Bug reports, feature requests, and downloads at http://mysqltuner.pl/
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Bug tracker can be found at https://github.com/major/MySQLTuner-perl/issues
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Maintained by Major Hayden (major\\@mhtx.net) - Licensed under GPL
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# SOURCE CODE
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[https://github.com/major/MySQLTuner-perl](https://github.com/major/MySQLTuner-perl)
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git clone https://github.com/major/MySQLTuner-perl.git
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# COPYRIGHT AND LICENSE
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Copyright (C) 2006-2021 Major Hayden - [email protected]
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For the latest updates, please visit http://mysqltuner.pl/
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Git repository available at https://github.com/major/MySQLTuner-perl
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see &lt;https://www.gnu.org/licenses/>.

‎mysqltuner.pl

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$numLi++;
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debugprint "$numLi: $logLi"
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if $logLi =~ /warning|error/i and $logLi !~ /Logging to/;
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$nbErrLog++ if $logLi =~ /error/i and $logLi !~ /Logging to/;
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$nbErrLog++ if $logLi =~ /error/i and $logLi !~ /Logging to/;
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$nbWarnLog++ if $logLi =~ /warning/i;
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push @lastShutdowns, $logLi
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if $logLi =~ /Shutdown complete/ and $logLi !~ /Innodb/i;
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if ( $nbWarnLog > 0 ) {
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badprint "$myvar{'log_error'} contains $nbWarnLog warning(s).";
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push @generalrec,
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"Check warning line(s) in $myvar{'log_error'} file";
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push @generalrec, "Check warning line(s) in $myvar{'log_error'} file";
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}
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else {
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goodprint "$myvar{'log_error'} doesn't contain any warning.";
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"This replication slave is not running but seems to be configured.";
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}
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if ( defined($io_running)
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&& $io_running =~ /yes/i
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&& $io_running =~ /yes/i
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&& $sql_running =~ /yes/i )
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{
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if ( $myvar{'read_only'} eq 'OFF' ) {

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