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mysqltuner.pl
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#!/usr/bin/env perl
# mysqltuner.pl - Version 2.5.0
# High Performance MySQL Tuning Script
# Copyright (C) 2015-2023 Jean-Marie Renouard - [email protected]
# Copyright (C) 2006-2023 Major Hayden - [email protected]
# For the latest updates, please visit http://mysqltuner.pl/
# Git repository available at https://github.com/major/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/>.
#
# This project would not be possible without help from:
# 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 Christian Loos
# Julien Francoz Daniel Black Long Radix
#
# Inspired by Matthew Montgomery's tuning-primer.sh script:
# http://www.day32.com/MySQL/
#
package main;
use 5.005;
use strict;
use warnings;
use diagnostics;
use File::Spec;
use Getopt::Long;
use Pod::Usage;
use File::Basename;
use Cwd 'abs_path';
#use Data::Dumper;
#$Data::Dumper::Pair = " : ";
# for which()
#use Env;
# Set up a few variables for use in the script
my $tunerversion = "2.5.0";
my ( @adjvars, @generalrec );
# Set defaults
my %opt = (
"silent" => 0,
"nobad" => 0,
"nogood" => 0,
"noinfo" => 0,
"debug" => 0,
"nocolor" => ( !-t STDOUT ),
"color" => 0,
"forcemem" => 0,
"forceswap" => 0,
"host" => 0,
"socket" => 0,
"port" => 0,
"user" => 0,
"pass" => 0,
"password" => 0,
"ssl-ca" => 0,
"skipsize" => 0,
"checkversion" => 0,
"updateversion" => 0,
"buffers" => 0,
"passwordfile" => 0,
"bannedports" => '',
"maxportallowed" => 0,
"outputfile" => 0,
"noprocess" => 0,
"dbstat" => 0,
"nodbstat" => 0,
"server-log" => '',
"tbstat" => 0,
"notbstat" => 0,
"colstat" => 0,
"nocolstat" => 0,
"idxstat" => 0,
"noidxstat" => 0,
"nomyisamstat" => 0,
"nostructstat" => 0,
"sysstat" => 0,
"nosysstat" => 0,
"pfstat" => 0,
"nopfstat" => 0,
"skippassword" => 0,
"noask" => 0,
"template" => 0,
"json" => 0,
"prettyjson" => 0,
"reportfile" => 0,
"verbose" => 0,
"defaults-file" => '',
"defaults-extra-file" => '',
"protocol" => '',
"dumpdir" => '',
"feature" => '',
"dbgpattern" => '',
"defaultarch" => 64
);
# Gather the options from the command line
GetOptions(
\%opt, 'nobad',
'nogood', 'noinfo',
'debug', 'nocolor',
'forcemem=i', 'forceswap=i',
'host=s', 'socket=s',
'port=i', 'user=s',
'pass=s', 'skipsize',
'checkversion', 'mysqladmin=s',
'mysqlcmd=s', 'help',
'buffers', 'skippassword',
'passwordfile=s', 'outputfile=s',
'silent', 'noask',
'json', 'prettyjson',
'template=s', 'reportfile=s',
'cvefile=s', 'bannedports=s',
'updateversion', 'maxportallowed=s',
'verbose', 'password=s',
'passenv=s', 'userenv=s',
'defaults-file=s', 'ssl-ca=s',
'color', 'noprocess',
'dbstat', 'nodbstat',
'tbstat', 'notbstat',
'colstat', 'nocolstat',
'sysstat', 'nosysstat',
'pfstat', 'nopfstat',
'idxstat', 'noidxstat',
'structstat', 'nostructstat',
'myisamstat', 'nomyisamstat',
'server-log=s', 'protocol=s',
'defaults-extra-file=s', 'dumpdir=s',
'feature=s', 'dbgpattern=s',
'defaultarch=i'
)
or pod2usage(
-exitval => 1,
-verbose => 99,
-sections => [
"NAME",
"IMPORTANT USAGE GUIDELINES",
"CONNECTION AND AUTHENTICATION",
"PERFORMANCE AND REPORTING OPTIONS",
"OUTPUT OPTIONS"
]
);
if ( defined $opt{'help'} && $opt{'help'} == 1 ) {
pod2usage(
-exitval => 0,
-verbose => 99,
-sections => [
"NAME",
"IMPORTANT USAGE GUIDELINES",
"CONNECTION AND AUTHENTICATION",
"PERFORMANCE AND REPORTING OPTIONS",
"OUTPUT OPTIONS"
]
);
}
my $devnull = File::Spec->devnull();
my $basic_password_files =
( $opt{passwordfile} eq "0" )
? abs_path( dirname(__FILE__) ) . "/basic_passwords.txt"
: abs_path( $opt{passwordfile} );
# Username from envvar
if ( exists $opt{userenv} && exists $ENV{ $opt{userenv} } ) {
$opt{user} = $ENV{ $opt{userenv} };
}
# Related to password option
if ( exists $opt{passenv} && exists $ENV{ $opt{passenv} } ) {
$opt{pass} = $ENV{ $opt{passenv} };
}
$opt{pass} = $opt{password} if ( $opt{pass} eq 0 and $opt{password} ne 0 );
if ( $opt{dumpdir} ne '' ) {
$opt{dumpdir} = abs_path( $opt{dumpdir} );
if ( !-d $opt{dumpdir} ) {
mkdir $opt{dumpdir} or die "Cannot create directory $opt{dumpdir}: $!";
}
}
# for RPM distributions
$basic_password_files = "/usr/share/mysqltuner/basic_passwords.txt"
unless -f "$basic_password_files";
$opt{dbgpattern} = '.*' if ( $opt{dbgpattern} eq '' );
# check if we need to enable verbose mode
if ( $opt{feature} ne '' ) { $opt{verbose} = 1; }
if ( $opt{verbose} ) {
$opt{checkversion} = 1; # Check for updates to MySQLTuner
$opt{dbstat} = 1; # Print database information
$opt{tbstat} = 1; # Print database information
$opt{idxstat} = 1; # Print index information
$opt{sysstat} = 1; # Print index information
$opt{buffers} = 1; # Print global and per-thread buffer values
$opt{pfstat} = 1; # Print performance schema info.
$opt{structstat} = 1; # Print table structure information
$opt{myisamstat} = 1; # Print MyISAM table information
$opt{cvefile} = 'vulnerabilities.csv'; #CVE File for vulnerability checks
}
$opt{nocolor} = 1 if defined( $opt{outputfile} );
$opt{tbstat} = 0 if ( $opt{notbstat} == 1 ); # Don't print table information
$opt{colstat} = 0 if ( $opt{nocolstat} == 1 ); # Don't print column information
$opt{dbstat} = 0 if ( $opt{nodbstat} == 1 ); # Don't print database information
$opt{noprocess} = 0
if ( $opt{noprocess} == 1 ); # Don't print process information
$opt{sysstat} = 0 if ( $opt{nosysstat} == 1 ); # Don't print sysstat information
$opt{pfstat} = 0
if ( $opt{nopfstat} == 1 ); # Don't print performance schema information
$opt{idxstat} = 0 if ( $opt{noidxstat} == 1 ); # Don't print index information
$opt{structstat} = 0
if ( not defined( $opt{structstat} ) or $opt{nostructstat} == 1 )
; # Don't print table struct information
$opt{myisamstat} = 1
if ( not defined( $opt{myisamstat} ));
$opt{myisamstat} = 0 if ($opt{nomyisamstat} == 1 ); # Don't print MyISAM table information
# for RPM distributions
$opt{cvefile} = "/usr/share/mysqltuner/vulnerabilities.csv"
unless ( defined $opt{cvefile} and -f "$opt{cvefile}" );
$opt{cvefile} = '' unless -f "$opt{cvefile}";
$opt{cvefile} = './vulnerabilities.csv' if -f './vulnerabilities.csv';
$opt{'bannedports'} = '' unless defined( $opt{'bannedports'} );
my @banned_ports = split ',', $opt{'bannedports'};
#
my $outputfile = undef;
$outputfile = abs_path( $opt{outputfile} ) unless $opt{outputfile} eq "0";
my $fh = undef;
open( $fh, '>', $outputfile )
or die("Fail opening $outputfile")
if defined($outputfile);
$opt{nocolor} = 1 if defined($outputfile);
$opt{nocolor} = 1 unless ( -t STDOUT );
$opt{nocolor} = 0 if ( $opt{color} == 1 );
# Setting up the colors for the print styles
my $me = `whoami`;
$me =~ s/\n//g;
my $good = ( $opt{nocolor} == 0 ) ? "[\e[0;32mOK\e[0m]" : "[OK]";
my $bad = ( $opt{nocolor} == 0 ) ? "[\e[0;31m!!\e[0m]" : "[!!]";
my $info = ( $opt{nocolor} == 0 ) ? "[\e[0;34m--\e[0m]" : "[--]";
my $deb = ( $opt{nocolor} == 0 ) ? "[\e[0;31mDG\e[0m]" : "[DG]";
my $cmd = ( $opt{nocolor} == 0 ) ? "\e[1;32m[CMD]($me)" : "[CMD]($me)";
my $end = ( $opt{nocolor} == 0 ) ? "\e[0m" : "";
# Maximum lines of log output to read from end
my $maxlines = 30000;
# Checks for supported or EOL'ed MySQL versions
my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro );
# Database
my @dblist;
# Super structure containing all information
my %result;
$result{'MySQLTuner'}{'version'} = $tunerversion;
$result{'MySQLTuner'}{'datetime'} = `date '+%d-%m-%Y %H:%M:%S'`;
$result{'MySQLTuner'}{'options'} = \%opt;
# Functions that handle the print styles
sub prettyprint {
print $_[0] . "\n" unless ( $opt{'silent'} or $opt{'json'} );
print $fh $_[0] . "\n" if defined($fh);
}
sub goodprint {
prettyprint $good. " " . $_[0] unless ( $opt{nogood} == 1 );
}
sub infoprint {
prettyprint $info. " " . $_[0] unless ( $opt{noinfo} == 1 );
}
sub badprint {
prettyprint $bad. " " . $_[0] unless ( $opt{nobad} == 1 );
}
sub debugprint {
prettyprint $deb. " " . $_[0] unless ( $opt{debug} == 0 );
}
sub redwrap {
return ( $opt{nocolor} == 0 ) ? "\e[0;31m" . $_[0] . "\e[0m" : $_[0];
}
sub greenwrap {
return ( $opt{nocolor} == 0 ) ? "\e[0;32m" . $_[0] . "\e[0m" : $_[0];
}
sub cmdprint {
prettyprint $cmd. " " . $_[0] . $end;
}
sub infoprintml {
for my $ln (@_) { $ln =~ s/\n//g; infoprint "\t$ln"; }
}
sub infoprintcmd {
cmdprint "@_";
infoprintml grep { $_ ne '' and $_ !~ /^\s*$/ } `@_ 2>&1`;
}
sub subheaderprint {
my $tln = 100;
my $sln = 8;
my $ln = length("@_") + 2;
prettyprint " ";
prettyprint "-" x $sln . " @_ " . "-" x ( $tln - $ln - $sln );
}
sub infoprinthcmd {
subheaderprint "$_[0]";
infoprintcmd "$_[1]";
}
sub is_remote() {
my $host = $opt{'host'};
return 0 if ( $host eq '' );
return 0 if ( $host eq 'localhost' );
return 0 if ( $host eq '127.0.0.1' );
return 1;
}
sub is_int {
return 0 unless defined $_[0];
my $str = $_[0];
#trim whitespace both sides
$str =~ s/^\s+|\s+$//g;
#Alternatively, to match any float-like numeric, use:
# m/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/
#flatten to string and match dash or plus and one or more digits
if ( $str =~ /^(\-|\+)?\d+?$/ ) {
return 1;
}
return 0;
}
# Calculates the number of physical cores considering HyperThreading
sub cpu_cores {
if ( $^O eq 'linux' ) {
my $cntCPU =
`awk -F: '/^core id/ && !P[\$2] { CORES++; P[\$2]=1 }; /^physical id/ && !N[\$2] { CPUs++; N[\$2]=1 }; END { print CPUs*CORES }' /proc/cpuinfo`;
chomp $cntCPU;
return ( $cntCPU == 0 ? `nproc` : $cntCPU );
}
if ( $^O eq 'freebsd' ) {
my $cntCPU = `sysctl -n kern.smp.cores`;
chomp $cntCPU;
return $cntCPU + 0;
}
return 0;
}
# Calculates the parameter passed in bytes, then rounds it to one decimal place
sub hr_bytes {
my $num = shift;
return "0B" unless defined($num);
return "0B" if $num eq "NULL";
return "0B" if $num eq "";
if ( $num >= ( 1024**3 ) ) { # GB
return sprintf( "%.1f", ( $num / ( 1024**3 ) ) ) . "G";
}
elsif ( $num >= ( 1024**2 ) ) { # MB
return sprintf( "%.1f", ( $num / ( 1024**2 ) ) ) . "M";
}
elsif ( $num >= 1024 ) { # KB
return sprintf( "%.1f", ( $num / 1024 ) ) . "K";
}
else {
return $num . "B";
}
}
sub hr_raw {
my $num = shift;
return "0" unless defined($num);
return "0" if $num eq "NULL";
if ( $num =~ /^(\d+)G$/ ) {
return $1 * 1024 * 1024 * 1024;
}
if ( $num =~ /^(\d+)M$/ ) {
return $1 * 1024 * 1024;
}
if ( $num =~ /^(\d+)K$/ ) {
return $1 * 1024;
}
if ( $num =~ /^(\d+)$/ ) {
return $1;
}
return $num;
}
# Calculates the parameter passed in bytes, then rounds it to the nearest integer
sub hr_bytes_rnd {
my $num = shift;
return "0B" unless defined($num);
return "0B" if $num eq "NULL";
if ( $num >= ( 1024**3 ) ) { # GB
return int( ( $num / ( 1024**3 ) ) ) . "G";
}
elsif ( $num >= ( 1024**2 ) ) { # MB
return int( ( $num / ( 1024**2 ) ) ) . "M";
}
elsif ( $num >= 1024 ) { # KB
return int( ( $num / 1024 ) ) . "K";
}
else {
return $num . "B";
}
}
# Calculates the parameter passed to the nearest power of 1000, then rounds it to the nearest integer
sub hr_num {
my $num = shift;
if ( $num >= ( 1000**3 ) ) { # Billions
return int( ( $num / ( 1000**3 ) ) ) . "B";
}
elsif ( $num >= ( 1000**2 ) ) { # Millions
return int( ( $num / ( 1000**2 ) ) ) . "M";
}
elsif ( $num >= 1000 ) { # Thousands
return int( ( $num / 1000 ) ) . "K";
}
else {
return $num;
}
}
# Calculate Percentage
sub percentage {
my $value = shift;
my $total = shift;
$total = 0 unless defined $total;
$total = 0 if $total eq "NULL";
return 100, 00 if $total == 0;
return sprintf( "%.2f", ( $value * 100 / $total ) );
}
# Calculates uptime to display in a human-readable form
sub pretty_uptime {
my $uptime = shift;
my $seconds = $uptime % 60;
my $minutes = int( ( $uptime % 3600 ) / 60 );
my $hours = int( ( $uptime % 86400 ) / (3600) );
my $days = int( $uptime / (86400) );
my $uptimestring;
if ( $days > 0 ) {
$uptimestring = "${days}d ${hours}h ${minutes}m ${seconds}s";
}
elsif ( $hours > 0 ) {
$uptimestring = "${hours}h ${minutes}m ${seconds}s";
}
elsif ( $minutes > 0 ) {
$uptimestring = "${minutes}m ${seconds}s";
}
else {
$uptimestring = "${seconds}s";
}
return $uptimestring;
}
# Retrieves the memory installed on this machine
my ( $physical_memory, $swap_memory, $duflags, $xargsflags );
sub memerror {
badprint
"Unable to determine total memory/swap; use '--forcemem' and '--forceswap'";
exit 1;
}
sub os_setup {
my $os = `uname`;
$duflags = ( $os =~ /Linux/ ) ? '-b' : '';
$xargsflags = ( $os =~ /Darwin|SunOS/ ) ? '' : '-r';
if ( $opt{'forcemem'} > 0 ) {
$physical_memory = $opt{'forcemem'} * 1048576;
infoprint "Assuming $opt{'forcemem'} MB of physical memory";
if ( $opt{'forceswap'} > 0 ) {
$swap_memory = $opt{'forceswap'} * 1048576;
infoprint "Assuming $opt{'forceswap'} MB of swap space";
}
else {
$swap_memory = 0;
badprint "Assuming 0 MB of swap space (use --forceswap to specify)";
}
}
else {
if ( $os =~ /Linux|CYGWIN/ ) {
$physical_memory =
`grep -i memtotal: /proc/meminfo | awk '{print \$2}'`
or memerror;
$physical_memory *= 1024;
$swap_memory =
`grep -i swaptotal: /proc/meminfo | awk '{print \$2}'`
or memerror;
$swap_memory *= 1024;
}
elsif ( $os =~ /Darwin/ ) {
$physical_memory = `sysctl -n hw.memsize` or memerror;
$swap_memory =
`sysctl -n vm.swapusage | awk '{print \$3}' | sed 's/\..*\$//'`
or memerror;
}
elsif ( $os =~ /NetBSD|OpenBSD|FreeBSD/ ) {
$physical_memory = `sysctl -n hw.physmem` or memerror;
if ( $physical_memory < 0 ) {
$physical_memory = `sysctl -n hw.physmem64` or memerror;
}
$swap_memory =
`swapctl -l | grep '^/' | awk '{ s+= \$2 } END { print s }'`
or memerror;
}
elsif ( $os =~ /BSD/ ) {
$physical_memory = `sysctl -n hw.realmem` or memerror;
$swap_memory =
`swapinfo | grep '^/' | awk '{ s+= \$2 } END { print s }'`;
}
elsif ( $os =~ /SunOS/ ) {
$physical_memory =
`/usr/sbin/prtconf | grep Memory | cut -f 3 -d ' '`
or memerror;
chomp($physical_memory);
$physical_memory = $physical_memory * 1024 * 1024;
}
elsif ( $os =~ /AIX/ ) {
$physical_memory =
`lsattr -El sys0 | grep realmem | awk '{print \$2}'`
or memerror;
chomp($physical_memory);
$physical_memory = $physical_memory * 1024;
$swap_memory = `lsps -as | awk -F"(MB| +)" '/MB /{print \$2}'`
or memerror;
chomp($swap_memory);
$swap_memory = $swap_memory * 1024 * 1024;
}
elsif ( $os =~ /windows/i ) {
$physical_memory =
`wmic ComputerSystem get TotalPhysicalMemory | perl -ne "chomp; print if /[0-9]+/;"`
or memerror;
$swap_memory =
`wmic OS get FreeVirtualMemory | perl -ne "chomp; print if /[0-9]+/;"`
or memerror;
}
}
debugprint "Physical Memory: $physical_memory";
debugprint "Swap Memory: $swap_memory";
chomp($physical_memory);
chomp($swap_memory);
chomp($os);
$result{'OS'}{'OS Type'} = $os;
$result{'OS'}{'Physical Memory'}{'bytes'} = $physical_memory;
$result{'OS'}{'Physical Memory'}{'pretty'} = hr_bytes($physical_memory);
$result{'OS'}{'Swap Memory'}{'bytes'} = $swap_memory;
$result{'OS'}{'Swap Memory'}{'pretty'} = hr_bytes($swap_memory);
$result{'OS'}{'Other Processes'}{'bytes'} = get_other_process_memory();
$result{'OS'}{'Other Processes'}{'pretty'} =
hr_bytes( get_other_process_memory() );
}
sub get_http_cli {
my $httpcli = which( "curl", $ENV{'PATH'} );
chomp($httpcli);
if ($httpcli) {
return $httpcli;
}
$httpcli = which( "wget", $ENV{'PATH'} );
chomp($httpcli);
if ($httpcli) {
return $httpcli;
}
return "";
}
# Checks for updates to MySQLTuner
sub validate_tuner_version {
if ( $opt{'checkversion'} eq 0 ) {
print "\n" unless ( $opt{'silent'} or $opt{'json'} );
infoprint "Skipped version check for MySQLTuner script";
return;
}
my $update;
my $url =
"https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl";
my $httpcli = get_http_cli();
if ( $httpcli =~ /curl$/ ) {
debugprint "$httpcli is available.";
debugprint
"$httpcli -m 3 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2";
$update =
`$httpcli -m 3 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2`;
chomp($update);
debugprint "VERSION: $update";
compare_tuner_version($update);
return;
}
if ( $httpcli =~ /wget$/ ) {
debugprint "$httpcli is available.";
debugprint
"$httpcli -e timestamping=off -t 1 -T 3 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2";
$update =
`$httpcli -e timestamping=off -t 1 -T 3 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2`;
chomp($update);
compare_tuner_version($update);
return;
}
debugprint "curl and wget are not available.";
infoprint "Unable to check for the latest MySQLTuner version";
infoprint
"Using --pass and --password option is insecure during MySQLTuner execution (password disclosure)"
if ( defined( $opt{'pass'} ) );
}
# Checks for updates to MySQLTuner
sub update_tuner_version {
if ( $opt{'updateversion'} eq 0 ) {
badprint "Skipped version update for MySQLTuner script";
print "\n" unless ( $opt{'silent'} or $opt{'json'} );
return;
}
my $update;
my $fullpath = "";
my $url = "https://raw.githubusercontent.com/major/MySQLTuner-perl/master/";
my @scripts =
( "mysqltuner.pl", "basic_passwords.txt", "vulnerabilities.csv" );
my $totalScripts = scalar(@scripts);
my $receivedScripts = 0;
my $httpcli = get_http_cli();
foreach my $script (@scripts) {
if ( $httpcli =~ /curl$/ ) {
debugprint "$httpcli is available.";
$fullpath = dirname(__FILE__) . "/" . $script;
debugprint "FullPath: $fullpath";
debugprint
"$httpcli --connect-timeout 3 '$url$script' 2>$devnull > $fullpath";
$update =
`$httpcli --connect-timeout 3 '$url$script' 2>$devnull > $fullpath`;
chomp($update);
debugprint "$script updated: $update";
if ( -s $script eq 0 ) {
badprint "Couldn't update $script";
}
else {
++$receivedScripts;
debugprint "$script updated: $update";
}
}
elsif ( $httpcli =~ /wget$/ ) {
debugprint "$httpcli is available.";
debugprint
"$httpcli -qe timestamping=off -t 1 -T 3 -O $script '$url$script'";
$update =
`$httpcli -qe timestamping=off -t 1 -T 3 -O $script '$url$script'`;
chomp($update);
if ( -s $script eq 0 ) {
badprint "Couldn't update $script";
}
else {
++$receivedScripts;
debugprint "$script updated: $update";
}
}
else {
debugprint "curl and wget are not available.";
infoprint "Unable to check for the latest MySQLTuner version";
}
}
if ( $receivedScripts eq $totalScripts ) {
goodprint "Successfully updated MySQLTuner script";
}
else {
badprint "Couldn't update MySQLTuner script";
}
infoprint "Stopping program: MySQLTuner script must be updated first.";
exit 0;
}
sub compare_tuner_version {
my $remoteversion = shift;
debugprint "Remote data: $remoteversion";
#exit 0;
if ( $remoteversion ne $tunerversion ) {
badprint
"There is a new version of MySQLTuner available ($remoteversion)";
update_tuner_version();
return;
}
goodprint "You have the latest version of MySQLTuner ($tunerversion)";
return;
}
# Checks to see if a MySQL login is possible
my ( $mysqllogin, $doremote, $remotestring, $mysqlcmd, $mysqladmincmd );
my $osname = $^O;
if ( $osname eq 'MSWin32' ) {
eval { require Win32; } or last;
$osname = Win32::GetOSName();
infoprint "* Windows OS ($osname) is not fully supported.\n";
#exit 1;
}
sub mysql_setup {
$doremote = 0;
$remotestring = '';
if ( $opt{mysqladmin} ) {
$mysqladmincmd = $opt{mysqladmin};
}
else {
$mysqladmincmd = which( "mysqladmin", $ENV{'PATH'} );
if ( !-e $mysqladmincmd ) {
$mysqladmincmd = which( "mariadb-admin", $ENV{'PATH'} );
}
}
chomp($mysqladmincmd);
if ( !-e $mysqladmincmd && $opt{mysqladmin} ) {
badprint "Unable to find the mysqladmin command you specified: "
. $mysqladmincmd . "";
exit 1;
}
elsif ( !-e $mysqladmincmd ) {
badprint
"Couldn't find mysqladmin/mariadb-admin in your \$PATH. Is MySQL installed?";
#exit 1;
}
if ( $opt{mysqlcmd} ) {
$mysqlcmd = $opt{mysqlcmd};
}
else {
$mysqlcmd = which( "mysql", $ENV{'PATH'} );
if ( !-e $mysqlcmd ) {
$mysqlcmd = which( "mariadb", $ENV{'PATH'} );
}
}
chomp($mysqlcmd);
if ( !-e $mysqlcmd && $opt{mysqlcmd} ) {
badprint "Unable to find the mysql command you specified: "
. $mysqlcmd . "";
exit 1;
}
elsif ( !-e $mysqlcmd ) {
badprint
"Couldn't find mysql/mariadb in your \$PATH. Is MySQL installed?";
exit 1;
}
$mysqlcmd =~ s/\n$//g;
my $mysqlclidefaults = `$mysqlcmd --print-defaults`;
debugprint "MySQL Client: $mysqlclidefaults";
if ( $mysqlclidefaults =~ /auto-vertical-output/ ) {
badprint
"Avoid auto-vertical-output in configuration file(s) for MySQL like";
exit 1;
}
debugprint "MySQL Client: $mysqlcmd";
# Are we being asked to connect via a socket?
if ( $opt{socket} ne 0 ) {
if ( $opt{port} ne 0 ) {
$remotestring = " -S $opt{socket} -P $opt{port}";
} else {
$remotestring = " -S $opt{socket}";
}
}
if ( $opt{protocol} ne '' ) {
$remotestring = " --protocol=$opt{protocol}";
}
# Are we being asked to connect to a remote server?
if ( $opt{host} ne 0 ) {
chomp( $opt{host} );
$opt{port} = ( $opt{port} eq 0 ) ? 3306 : $opt{port};
# If we're doing a remote connection, but forcemem wasn't specified, we need to exit
if ( $opt{'forcemem'} eq 0 && is_remote eq 1 ) {
badprint "The --forcemem option is required for remote connections";
badprint
"Assuming RAM memory is 1Gb for simplify remote connection usage";
$opt{'forcemem'} = 1024;
#exit 1;
}
if ( $opt{'forceswap'} eq 0 && is_remote eq 1 ) {
badprint
"The --forceswap option is required for remote connections";
badprint
"Assuming Swap size is 1Gb for simplify remote connection usage";
$opt{'forceswap'} = 1024;
#exit 1;
}
infoprint "Performing tests on $opt{host}:$opt{port}";
$remotestring = " -h $opt{host} -P $opt{port}";
$doremote = is_remote();
}
else {
$opt{host} = '127.0.0.1';
}
if ( $opt{'ssl-ca'} ne 0 ) {
if ( -e -r -f $opt{'ssl-ca'} ) {
$remotestring .= " --ssl-ca=$opt{'ssl-ca'}";
infoprint
"Will connect using ssl public key passed on the command line";
return 1;
}
else {
badprint
"Attempted to use passed ssl public key, but it was not found or could not be read";
exit 1;
}
}
# Did we already get a username with or without password on the command line?
if ( $opt{user} ne 0 ) {
$mysqllogin =
"-u $opt{user} "
. ( ( $opt{pass} ne 0 ) ? "-p'$opt{pass}' " : " " )
. $remotestring;
my $loginstatus =
`$mysqlcmd -Nrs -e 'select "mysqld is alive";' $mysqllogin 2>&1`;
if ( $loginstatus =~ /mysqld is alive/ ) {
goodprint "Logged in using credentials passed on the command line";
return 1;
}
else {
badprint
"Attempted to use login credentials, but they were invalid";
exit 1;
}
}
my $svcprop = which( "svcprop", $ENV{'PATH'} );
if ( substr( $svcprop, 0, 1 ) =~ "/" ) {
# We are on solaris
( my $mysql_login =
`svcprop -p quickbackup/username svc:/network/mysql-quickbackup:default`
) =~ s/\s+$//;
( my $mysql_pass =
`svcprop -p quickbackup/password svc:/network/mysql-quickbackup:default`
) =~ s/\s+$//;
if ( substr( $mysql_login, 0, 7 ) ne "svcprop" ) {
# mysql-quickbackup is installed
$mysqllogin = "-u $mysql_login -p$mysql_pass";
my $loginstatus = `mysqladmin $mysqllogin ping 2>&1`;
if ( $loginstatus =~ /mysqld is alive/ ) {
goodprint "Logged in using credentials from mysql-quickbackup.";
return 1;
}
else {
badprint
"Attempted to use login credentials from mysql-quickbackup, but they failed.";
exit 1;
}
}
}
elsif ( -r "/etc/psa/.psa.shadow" and $doremote == 0 ) {
# It's a Plesk box, use the available credentials
$mysqllogin = "-u admin -p`cat /etc/psa/.psa.shadow`";
my $loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`;
unless ( $loginstatus =~ /mysqld is alive/ ) {
# Plesk 10+
$mysqllogin =
"-u admin -p`/usr/local/psa/bin/admin --show-password`";
$loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`;
unless ( $loginstatus =~ /mysqld is alive/ ) {
badprint
"Attempted to use login credentials from Plesk and Plesk 10+, but they failed.";
exit 1;
}
}
}
elsif ( -r "/usr/local/directadmin/conf/mysql.conf" and $doremote == 0 ) {
# It's a DirectAdmin box, use the available credentials
my $mysqluser =
`cat /usr/local/directadmin/conf/mysql.conf | egrep '^user=.*'`;
my $mysqlpass =
`cat /usr/local/directadmin/conf/mysql.conf | egrep '^passwd=.*'`;
$mysqluser =~ s/user=//;
$mysqluser =~ s/[\r\n]//;
$mysqlpass =~ s/passwd=//;
$mysqlpass =~ s/[\r\n]//;
$mysqllogin = "-u $mysqluser -p$mysqlpass";
my $loginstatus = `mysqladmin ping $mysqllogin 2>&1`;
unless ( $loginstatus =~ /mysqld is alive/ ) {
badprint
"Attempted to use login credentials from DirectAdmin, but they failed.";
exit 1;
}
}
elsif ( -r "/etc/mysql/debian.cnf"
and $doremote == 0
and $opt{'defaults-file'} eq '' )
{
# We have a Debian maintenance account, use it
$mysqllogin = "--defaults-file=/etc/mysql/debian.cnf";
my $loginstatus = `$mysqladmincmd $mysqllogin ping 2>&1`;
if ( $loginstatus =~ /mysqld is alive/ ) {
goodprint
"Logged in using credentials from Debian maintenance account.";
return 1;
}
else {
badprint
"Attempted to use login credentials from Debian maintenance account, but they failed.";
exit 1;
}
}
elsif ( $opt{'defaults-file'} ne '' and -r "$opt{'defaults-file'}" ) {
# defaults-file
debugprint "defaults file detected: $opt{'defaults-file'}";
my $mysqlclidefaults = `$mysqlcmd --print-defaults`;
debugprint "MySQL Client Default File: $opt{'defaults-file'}";
$mysqllogin = "--defaults-file=" . $opt{'defaults-file'};
my $loginstatus = `$mysqladmincmd $mysqllogin ping 2>&1`;
if ( $loginstatus =~ /mysqld is alive/ ) {
goodprint "Logged in using credentials from defaults file account.";
return 1;
}
}
elsif ( $opt{'defaults-extra-file'} ne ''
and -r "$opt{'defaults-extra-file'}" )
{
# defaults-extra-file
debugprint "defaults extra file detected: $opt{'defaults-extra-file'}";
my $mysqlclidefaults = `$mysqlcmd --print-defaults`;
debugprint
"MySQL Client Extra Default File: $opt{'defaults-extra-file'}";