diff --git a/mysql/files/mysqltuner.pl b/mysql/files/mysqltuner.pl
new file mode 100644
index 00000000..5631e7b3
--- /dev/null
+++ b/mysql/files/mysqltuner.pl
@@ -0,0 +1,6175 @@
+#!/usr/bin/env perl
+# mysqltuner.pl - Version 1.7.0
+# High Performance MySQL Tuning Script
+# Copyright (C) 2006-2016 Major Hayden - major@mhtx.net
+#
+# For the latest updates, please visit http://mysqltuner.com/
+# Git repository available at http://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 .
+#
+# 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
+#
+# Inspired by Matthew Montgomery's tuning-primer.sh script:
+# http://forge.mysql.com/projects/view.php?id=44
+#
+package main;
+
+use 5.005;
+use strict;
+use warnings;
+
+use diagnostics;
+use File::Spec;
+use Getopt::Long;
+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 = "1.7.0";
+my ( @adjvars, @generalrec );
+
+# Set defaults
+my %opt = (
+ "silent" => 0,
+ "nobad" => 0,
+ "nogood" => 0,
+ "noinfo" => 0,
+ "debug" => 0,
+ "nocolor" => 0,
+ "forcemem" => 0,
+ "forceswap" => 0,
+ "host" => 0,
+ "socket" => 0,
+ "port" => 0,
+ "user" => 0,
+ "pass" => 0,
+ "password" => 0,
+ "skipsize" => 0,
+ "checkversion" => 0,
+ "updateversion" => 0,
+ "buffers" => 0,
+ "passwordfile" => 0,
+ "bannedports" => '',
+ "maxportallowed" => 0,
+ "outputfile" => 0,
+ "dbstat" => 0,
+ "idxstat" => 0,
+ "sysstat" => 0,
+ "pfstat" => 0,
+ "skippassword" => 0,
+ "noask" => 0,
+ "template" => 0,
+ "json" => 0,
+ "prettyjson" => 0,
+ "reportfile" => 0,
+ "verbose" => 0,
+ "defaults-file" => '',
+);
+
+# Gather the options from the command line
+my $getOptionsCheck = 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', 'dbstat',
+ 'json', 'prettyjson',
+ 'idxstat', 'noask',
+ 'template=s', 'reportfile=s',
+ 'cvefile=s', 'bannedports=s',
+ 'updateversion', 'maxportallowed=s',
+ 'verbose', 'sysstat',
+ 'password=s', 'pfstat',
+ 'passenv=s', 'userenv=s',
+ 'defaults-file=s'
+);
+
+#If params are incorrect return help
+if ( $getOptionsCheck ne 1 ) {
+ usage();
+}
+
+if ( defined $opt{'help'} && $opt{'help'} == 1 ) { usage(); }
+
+sub usage {
+
+ # Shown with --help option passed
+ print " MySQLTuner $tunerversion - MySQL High Performance Tuning Script\n"
+ . " Bug reports, feature requests, and downloads at http://mysqltuner.com/\n"
+ . " Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL\n"
+ . "\n"
+ . " Important Usage Guidelines:\n"
+ . " To run the script with the default options, run the script without arguments\n"
+ . " Allow MySQL server to run for at least 24-48 hours before trusting suggestions\n"
+ . " Some routines may require root level privileges (script will provide warnings)\n"
+ . " You must provide the remote server's total memory when connecting to other servers\n"
+ . "\n"
+ . " Connection and Authentication\n"
+ . " --host Connect to a remote host to perform tests (default: localhost)\n"
+ . " --socket Use a different socket for a local connection\n"
+ . " --port Port to use for connection (default: 3306)\n"
+ . " --user Username to use for authentication\n"
+ . " --userenv Name of env variable which contains username to use for authentication\n"
+ . " --pass Password to use for authentication\n"
+ . " --passenv Name of env variable which contains password to use for authentication\n"
+ . " --defaults-file Path to a custom .my.cnf\n"
+ . " --mysqladmin Path to a custom mysqladmin executable\n"
+ . " --mysqlcmd Path to a custom mysql executable\n" . "\n"
+ . " --noask Don't ask password if needed\n" . "\n"
+ . " Performance and Reporting Options\n"
+ . " --skipsize Don't enumerate tables and their types/sizes (default: on)\n"
+ . " (Recommended for servers with many tables)\n"
+ . " --skippassword Don't perform checks on user passwords(default: off)\n"
+ . " --checkversion Check for updates to MySQLTuner (default: don't check)\n"
+ . " --updateversion Check for updates to MySQLTuner and update when newer version is available (default: don't check)\n"
+ . " --forcemem Amount of RAM installed in megabytes\n"
+ . " --forceswap Amount of swap memory configured in megabytes\n"
+ . " --passwordfile Path to a password file list(one password by line)\n"
+ . " Output Options:\n"
+ . " --silent Don't output anything on screen\n"
+ . " --nogood Remove OK responses\n"
+ . " --nobad Remove negative/suggestion responses\n"
+ . " --noinfo Remove informational responses\n"
+ . " --debug Print debug information\n"
+ . " --dbstat Print database information\n"
+ . " --idxstat Print index information\n"
+ . " --sysstat Print system information\n"
+ . " --pfstat Print Performance schema information\n"
+ . " --bannedports Ports banned separated by comma(,)\n"
+ . " --maxportallowed Number of ports opened allowed on this hosts\n"
+ . " --cvefile CVE File for vulnerability checks\n"
+ . " --nocolor Don't print output in color\n"
+ . " --json Print result as JSON string\n"
+ . " --prettyjson Print result as human readable JSON\n"
+ . " --buffers Print global and per-thread buffer values\n"
+ . " --outputfile Path to a output txt file\n" . "\n"
+ . " --reportfile Path to a report txt file\n" . "\n"
+ . " --template Path to a template file\n" . "\n"
+ . " --verbose Prints out all options (default: no verbose) \n"
+ . "\n";
+ exit 0;
+}
+
+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 $opt{password} ne 0 );
+
+# for RPM distributions
+$basic_password_files = "/usr/share/mysqltuner/basic_passwords.txt"
+ unless -f "$basic_password_files";
+
+# check if we need to enable verbose mode
+if ( $opt{verbose} ) {
+ $opt{checkversion} = 1; #Check for updates to MySQLTuner
+ $opt{dbstat} = 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.
+ $opt{cvefile} = 'vulnerabilities.csv'; #CVE File for vulnerability checks
+}
+
+# for RPM distributions
+$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);
+
+# Setting up the colors for the print styles
+my $me = `whoami`;
+$me =~ s/\n//g;
+
+# Setting up the colors for the print styles
+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" : "";
+
+# Checks for supported or EOL'ed MySQL versions
+my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro );
+
+# Super structure containing all information
+my %result;
+$result{'MySQLTuner'}{'version'} = $tunerversion;
+$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]";
+}
+
+# Calculates the parameter passed in bytes, then rounds it to one decimal place
+sub hr_bytes {
+ my $num = shift;
+ 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";
+ }
+}
+
+# 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 more attractive 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 );
+
+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' : '';
+ 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 and $opt{'updateversion'} 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 --connect-timeout 5 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2";
+ $update =
+`$httpcli --connect-timeout 5 -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 5 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2";
+ $update =
+`$httpcli -e timestamping=off -t 1 -T 5 -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";
+}
+
+# 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;
+ }
+
+ #use Cwd;
+ my $update;
+ 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 "$httpcli is available.";
+
+ debugprint
+ "$httpcli --connect-timeout 5 '$url$script' 2>$devnull > $script";
+ $update =
+ `$httpcli --connect-timeout 5 '$url$script' 2>$devnull > $script`;
+ chomp($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 5 -O $script '$url$script'";
+ $update =
+ `$httpcli -qe timestamping=off -T 5 -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";
+ }
+
+ 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", $ENV{'PATH'} );
+ }
+ chomp($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 in your \$PATH. Is MySQL installed?";
+ exit 1;
+ }
+ if ( $opt{mysqlcmd} ) {
+ $mysqlcmd = $opt{mysqlcmd};
+ }
+ else {
+ $mysqlcmd = which( "mysql", $ENV{'PATH'} );
+ }
+ chomp($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 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 ) {
+ $remotestring = " -S $opt{socket}";
+ }
+
+ # 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
+ && ( $opt{host} ne "127.0.0.1" )
+ && ( $opt{host} ne "localhost" ) )
+ {
+ badprint "The --forcemem option is required for remote connections";
+ exit 1;
+ }
+ infoprint "Performing tests on $opt{host}:$opt{port}";
+ $remotestring = " -h $opt{host} -P $opt{port}";
+ if ( ( $opt{host} ne "127.0.0.1" ) && ( $opt{host} ne "localhost" ) ) {
+ $doremote = 1;
+ }
+ }
+
+ # Did we already get a username without password on the command line?
+ if ( $opt{user} ne 0 and $opt{pass} eq 0 ) {
+ $mysqllogin = "-u $opt{user} " . $remotestring;
+ my $loginstatus = `$mysqladmincmd ping $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;
+ }
+ }
+
+ # Did we already get a username and password passed on the command line?
+ if ( $opt{user} ne 0 and $opt{pass} ne 0 ) {
+ $mysqllogin = "-u $opt{user} -p'$opt{pass}'" . $remotestring;
+ my $loginstatus = `$mysqladmincmd ping $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 ) {
+
+ # 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 ( $opt{'defaults-file'} ne 0 and -r "$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 ( $loginstatus =~ /mysqld is alive/ ) {
+ goodprint "Logged in using credentials from defaults file account.";
+ return 1;
+ }
+ }
+ else {
+ # It's not Plesk or debian, we should try a login
+ debugprint "$mysqladmincmd $remotestring ping 2>&1";
+ my $loginstatus = `$mysqladmincmd $remotestring ping 2>&1`;
+ if ( $loginstatus =~ /mysqld is alive/ ) {
+
+ # Login went just fine
+ $mysqllogin = " $remotestring ";
+
+ # Did this go well because of a .my.cnf file or is there no password set?
+ my $userpath = `printenv HOME`;
+ if ( length($userpath) > 0 ) {
+ chomp($userpath);
+ }
+ unless ( -e "${userpath}/.my.cnf" or -e "${userpath}/.mylogin.cnf" )
+ {
+ badprint
+"Successfully authenticated with no password - SECURITY RISK!";
+ }
+ return 1;
+ }
+ else {
+ if ( $opt{'noask'} == 1 ) {
+ badprint
+ "Attempted to use login credentials, but they were invalid";
+ exit 1;
+ }
+ my ( $name, $password );
+
+ # If --user is defined no need to ask for username
+ if ( $opt{user} ne 0 ) {
+ $name = $opt{user};
+ }
+ else {
+ print STDERR "Please enter your MySQL administrative login: ";
+ $name = ;
+ }
+
+ # If --pass is defined no need to ask for password
+ if ( $opt{pass} ne 0 ) {
+ $password = $opt{pass};
+ }
+ else {
+ print STDERR
+ "Please enter your MySQL administrative password: ";
+ system("stty -echo >$devnull 2>&1");
+ $password = ;
+ system("stty echo >$devnull 2>&1");
+ }
+ chomp($password);
+ chomp($name);
+ $mysqllogin = "-u $name";
+
+ if ( length($password) > 0 ) {
+ $mysqllogin .= " -p'$password'";
+ }
+ $mysqllogin .= $remotestring;
+ my $loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`;
+ if ( $loginstatus =~ /mysqld is alive/ ) {
+ print STDERR "";
+ if ( !length($password) ) {
+
+ # Did this go well because of a .my.cnf file or is there no password set?
+ my $userpath = `printenv HOME`;
+ chomp($userpath);
+ unless ( -e "$userpath/.my.cnf" ) {
+ badprint
+"Successfully authenticated with no password - SECURITY RISK!";
+ }
+ }
+ return 1;
+ }
+ else {
+ badprint
+ "Attempted to use login credentials, but they were invalid.";
+ exit 1;
+ }
+ exit 1;
+ }
+ }
+}
+
+# MySQL Request Array
+sub select_array {
+ my $req = shift;
+ debugprint "PERFORM: $req ";
+ my @result = `$mysqlcmd $mysqllogin -Bse "\\w$req" 2>>/dev/null`;
+ if ( $? != 0 ) {
+ badprint "failed to execute: $req";
+ badprint "FAIL Execute SQL / return code: $?";
+ debugprint "CMD : $mysqlcmd";
+ debugprint "OPTIONS: $mysqllogin";
+ debugprint `$mysqlcmd $mysqllogin -Bse "$req" 2>&1`;
+
+ #exit $?;
+ }
+ debugprint "select_array: return code : $?";
+ chomp(@result);
+ return @result;
+}
+
+# MySQL Request one
+sub select_one {
+ my $req = shift;
+ debugprint "PERFORM: $req ";
+ my $result = `$mysqlcmd $mysqllogin -Bse "\\w$req" 2>>/dev/null`;
+ if ( $? != 0 ) {
+ badprint "failed to execute: $req";
+ badprint "FAIL Execute SQL / return code: $?";
+ debugprint "CMD : $mysqlcmd";
+ debugprint "OPTIONS: $mysqllogin";
+ debugprint `$mysqlcmd $mysqllogin -Bse "$req" 2>&1`;
+
+ #exit $?;
+ }
+ debugprint "select_array: return code : $?";
+ chomp($result);
+ return $result;
+}
+
+sub get_tuning_info {
+ my @infoconn = select_array "\\s";
+ my ( $tkey, $tval );
+ @infoconn =
+ grep { !/Threads:/ and !/Connection id:/ and !/pager:/ and !/Using/ }
+ @infoconn;
+ foreach my $line (@infoconn) {
+ if ( $line =~ /\s*(.*):\s*(.*)/ ) {
+ debugprint "$1 => $2";
+ $tkey = $1;
+ $tval = $2;
+ chomp($tkey);
+ chomp($tval);
+ $result{'MySQL Client'}{$tkey} = $tval;
+ }
+ }
+ $result{'MySQL Client'}{'Client Path'} = $mysqlcmd;
+ $result{'MySQL Client'}{'Admin Path'} = $mysqladmincmd;
+ $result{'MySQL Client'}{'Authentication Info'} = $mysqllogin;
+
+}
+
+# Populates all of the variable and status hashes
+my ( %mystat, %myvar, $dummyselect, %myrepl, %myslaves );
+
+sub arr2hash {
+ my $href = shift;
+ my $harr = shift;
+ my $sep = shift;
+ $sep = '\s' unless defined($sep);
+ foreach my $line (@$harr) {
+ next if ( $line =~ m/^\*\*\*\*\*\*\*/ );
+ $line =~ /([a-zA-Z_]*)\s*$sep\s*(.*)/;
+ $$href{$1} = $2;
+ debugprint "V: $1 = $2";
+ }
+}
+
+sub get_all_vars {
+
+ # We need to initiate at least one query so that our data is useable
+ $dummyselect = select_one "SELECT VERSION()";
+ if ( not defined($dummyselect) or $dummyselect eq "" ) {
+ badprint
+"You probably doesn't get enough privileges for running MySQLTuner ...";
+ exit(256);
+ }
+ $dummyselect =~ s/(.*?)\-.*/$1/;
+ debugprint "VERSION: " . $dummyselect . "";
+ $result{'MySQL Client'}{'Version'} = $dummyselect;
+
+ my @mysqlvarlist = select_array("SHOW VARIABLES");
+ push( @mysqlvarlist, select_array("SHOW GLOBAL VARIABLES") );
+ arr2hash( \%myvar, \@mysqlvarlist );
+ $result{'Variables'} = \%myvar;
+
+ my @mysqlstatlist = select_array("SHOW STATUS");
+ push( @mysqlstatlist, select_array("SHOW GLOBAL STATUS") );
+ arr2hash( \%mystat, \@mysqlstatlist );
+ $result{'Status'} = \%mystat;
+
+ $myvar{'have_galera'} = "NO";
+ if ( defined( $myvar{'wsrep_provider_options'} )
+ && $myvar{'wsrep_provider_options'} ne "" )
+ {
+ $myvar{'have_galera'} = "YES";
+ debugprint "Galera options: " . $myvar{'wsrep_provider_options'};
+ }
+
+ # Workaround for MySQL bug #59393 wrt. ignore-builtin-innodb
+ if ( ( $myvar{'ignore_builtin_innodb'} || "" ) eq "ON" ) {
+ $myvar{'have_innodb'} = "NO";
+ }
+
+ # Support GTID MODE FOR MARIADB
+ # Issue MariaDB GTID mode #272
+ $myvar{'gtid_mode'}=$myvar{'gtid_strict_mode'} if (defined($myvar{'gtid_strict_mode'}));
+
+ $myvar{'have_threadpool'} = "NO";
+ if ( defined( $myvar{'thread_pool_size'} )
+ and $myvar{'thread_pool_size'} > 0 )
+ {
+ $myvar{'have_threadpool'} = "YES";
+ }
+
+ # have_* for engines is deprecated and will be removed in MySQL 5.6;
+ # check SHOW ENGINES and set corresponding old style variables.
+ # Also works around MySQL bug #59393 wrt. skip-innodb
+ my @mysqlenginelist = select_array "SHOW ENGINES";
+ foreach my $line (@mysqlenginelist) {
+ if ( $line =~ /^([a-zA-Z_]+)\s+(\S+)/ ) {
+ my $engine = lc($1);
+
+ if ( $engine eq "federated" || $engine eq "blackhole" ) {
+ $engine .= "_engine";
+ }
+ elsif ( $engine eq "berkeleydb" ) {
+ $engine = "bdb";
+ }
+ my $val = ( $2 eq "DEFAULT" ) ? "YES" : $2;
+ $myvar{"have_$engine"} = $val;
+ $result{'Storage Engines'}{$engine} = $2;
+ }
+ }
+ debugprint Dumper(@mysqlenginelist);
+ my @mysqlslave = select_array("SHOW SLAVE STATUS\\G");
+ arr2hash( \%myrepl, \@mysqlslave, ':' );
+ $result{'Replication'}{'Status'} = \%myrepl;
+ my @mysqlslaves = select_array "SHOW SLAVE HOSTS";
+ my @lineitems = ();
+ foreach my $line (@mysqlslaves) {
+ debugprint "L: $line ";
+ @lineitems = split /\s+/, $line;
+ $myslaves{ $lineitems[0] } = $line;
+ $result{'Replication'}{'Slaves'}{ $lineitems[0] } = $lineitems[4];
+ }
+}
+
+sub remove_cr {
+ return map {
+ my $line = $_;
+ $line =~ s/\n$//g;
+ $line =~ s/^\s+$//g;
+ $line;
+ } @_;
+}
+
+sub remove_empty {
+ grep { $_ ne '' } @_;
+}
+
+sub grep_file_contents {
+ my $file = shift;
+ my $patt
+}
+sub get_file_contents {
+ my $file = shift;
+ open( my $fh, "<", $file ) or die "Can't open $file for read: $!";
+ my @lines = <$fh>;
+ close $fh or die "Cannot close $file: $!";
+ @lines = remove_cr @lines;
+ return @lines;
+}
+
+sub get_basic_passwords {
+ return get_file_contents(shift);
+}
+
+sub log_file_recommandations {
+ subheaderprint "Log file Recommendations";
+ infoprint "Log file: " . $myvar{'log_error'}. "(".hr_bytes_rnd((stat $myvar{'log_error'})[7]).")";
+ if ( -f "$myvar{'log_error'}" ) {
+ goodprint "Log file $myvar{'log_error'} exists";
+ } else {
+ badprint "Log file $myvar{'log_error'} doesn't exist";
+ }
+ if ( -r "$myvar{'log_error'}" ) {
+ goodprint "Log file $myvar{'log_error'} is readable.";
+ } else {
+ badprint "Log file $myvar{'log_error'} isn't readable.";
+ return;
+ }
+ if ( (stat $myvar{'log_error'})[7] > 0 ) {
+ goodprint "Log file $myvar{'log_error'} is not empty";
+ } else {
+ badprint "Log file $myvar{'log_error'} is empty";
+ }
+
+ if ( (stat $myvar{'log_error'})[7] < 32*1024*1024 ) {
+ goodprint "Log file $myvar{'log_error'} is smaller than 32 Mb";
+ } else {
+ badprint "Log file $myvar{'log_error'} is bigger than 32 Mb";
+ push @generalrec,
+ $myvar{'log_error'} ."is > 32Mb, you should analyze why or implement a rotation log strategy such as logrotate!" ;
+ }
+
+ my @log_content = get_file_contents($myvar{'log_error'});
+
+ my $numLi = 0;
+ my $nbWarnLog = 0;
+ my $nbErrLog = 0;
+ my @lastShutdowns;
+ my @lastStarts;
+ foreach my $logLi ( @log_content ) {
+ $numLi++;
+ debugprint "$numLi: $logLi" if $logLi =~ /warning|error/i;
+ $nbErrLog++ if $logLi =~ /error/i;
+ $nbWarnLog++ if $logLi =~ /warning/i;
+ push @lastShutdowns, $logLi if $logLi =~ /Shutdown complete/ and $logLi !~ /Innodb/i;
+ push @lastStarts, $logLi if $logLi =~ /ready for connections/;
+ }
+ if ( $nbWarnLog > 0 ) {
+ badprint "$myvar{'log_error'} contains $nbWarnLog warning(s).";
+ push @generalrec, "Control warning line(s) into $myvar{'log_error'} file";
+ } else {
+ goodprint "$myvar{'log_error'} doesn't contain any warning.";
+ }
+ if ( $nbErrLog > 0 ) {
+ badprint "$myvar{'log_error'} contains $nbErrLog error(s).";
+ push @generalrec, "Control error line(s) into $myvar{'log_error'} file";
+ } else {
+ goodprint "$myvar{'log_error'} doesn't contain any error.";
+ }
+
+ infoprint scalar @lastStarts . " start(s) detected in $myvar{'log_error'}";
+ my $nStart = 0;
+ my $nEnd = 10;
+ if ( scalar @lastStarts < $nEnd ) {
+ $nEnd = scalar @lastStarts;
+ }
+ for my $startd ( reverse @lastStarts[-$nEnd..-1] ) {
+ $nStart++;
+ infoprint "$nStart) $startd";
+ }
+ infoprint scalar @lastShutdowns . " shutdown(s) detected in $myvar{'log_error'}";
+ $nStart=0;
+ $nEnd=10;
+ if ( scalar @lastShutdowns < $nEnd ) {
+ $nEnd = scalar @lastShutdowns;
+ }
+ for my $shutd ( reverse @lastShutdowns[-$nEnd..-1] ) {
+ $nStart++;
+ infoprint "$nStart) $shutd";
+ }
+ #exit 0;
+}
+
+
+
+sub cve_recommendations {
+ subheaderprint "CVE Security Recommendations";
+ unless ( defined( $opt{cvefile} ) && -f "$opt{cvefile}" ) {
+ infoprint "Skipped due to --cvefile option undefined";
+ return;
+ }
+
+#prettyprint "Look for related CVE for $myvar{'version'} or lower in $opt{cvefile}";
+ my $cvefound = 0;
+ open( my $fh, "<", $opt{cvefile} )
+ or die "Can't open $opt{cvefile} for read: $!";
+ while ( my $cveline = <$fh> ) {
+ my @cve = split( ';', $cveline );
+ debugprint
+"Comparing $mysqlvermajor\.$mysqlverminor\.$mysqlvermicro with $cve[1]\.$cve[2]\.$cve[3] : "
+ . ( mysql_version_le( $cve[1], $cve[2], $cve[3] ) ? '<=' : '>' );
+
+ # Avoid not major/minor version corresponding CVEs
+ next
+ unless ( int( $cve[1] ) == $mysqlvermajor
+ && int( $cve[2] ) == $mysqlverminor );
+ if ( int( $cve[3] ) >= $mysqlvermicro ) {
+ badprint "$cve[4](<= $cve[1]\.$cve[2]\.$cve[3]) : $cve[6]";
+ $result{'CVE'}{'List'}{$cvefound} =
+ "$cve[4](<= $cve[1]\.$cve[2]\.$cve[3]) : $cve[6]";
+ $cvefound++;
+ }
+ }
+ close $fh or die "Cannot close $opt{cvefile}: $!";
+ $result{'CVE'}{'nb'} = $cvefound;
+
+ my $cve_warning_notes = "";
+ if ( $cvefound == 0 ) {
+ goodprint "NO SECURITY CVE FOUND FOR YOUR VERSION";
+ return;
+ }
+ if ( $mysqlvermajor eq 5 and $mysqlverminor eq 5 ) {
+ infoprint
+ "False positive CVE(s) for MySQL and MariaDB 5.5.x can be found.";
+ infoprint "Check careful each CVE for those particular versions";
+ }
+ badprint $cvefound . " CVE(s) found for your MySQL release.";
+ push( @generalrec,
+ $cvefound
+ . " CVE(s) found for your MySQL release. Consider upgrading your version !"
+ );
+}
+
+sub get_opened_ports {
+ my @opened_ports = `netstat -ltn`;
+ @opened_ports = map {
+ my $v = $_;
+ $v =~ s/.*:(\d+)\s.*$/$1/;
+ $v =~ s/\D//g;
+ $v;
+ } @opened_ports;
+ @opened_ports = sort { $a <=> $b } grep { !/^$/ } @opened_ports;
+ debugprint Dumper \@opened_ports;
+ $result{'Network'}{'TCP Opened'} = \@opened_ports;
+ return @opened_ports;
+}
+
+sub is_open_port {
+ my $port = shift;
+ if ( grep { /^$port$/ } get_opened_ports ) {
+ return 1;
+ }
+ return 0;
+}
+
+sub get_process_memory {
+ my $pid = shift;
+ my @mem = `ps -p $pid -o rss`;
+ return 0 if scalar @mem != 2;
+ return $mem[1] * 1024;
+}
+
+sub get_other_process_memory {
+ my @procs = `ps eaxo pid,command`;
+ @procs = map {
+ my $v = $_;
+ $v =~ s/.*PID.*//;
+ $v =~ s/.*mysqld.*//;
+ $v =~ s/.*\[.*\].*//;
+ $v =~ s/^\s+$//g;
+ $v =~ s/.*PID.*CMD.*//;
+ $v =~ s/.*systemd.*//;
+ $v =~ s/\s*?(\d+)\s*.*/$1/g;
+ $v;
+ } @procs;
+ @procs = remove_cr @procs;
+ @procs = remove_empty @procs;
+ my $totalMemOther = 0;
+ map { $totalMemOther += get_process_memory($_); } @procs;
+ return $totalMemOther;
+}
+
+sub get_os_release {
+ if ( -f "/etc/lsb-release" ) {
+ my @info_release = get_file_contents "/etc/lsb-release";
+ my $os_relase = $info_release[3];
+ $os_relase =~ s/.*="//;
+ $os_relase =~ s/"$//;
+ return $os_relase;
+ }
+
+ if ( -f "/etc/system-release" ) {
+ my @info_release = get_file_contents "/etc/system-release";
+ return $info_release[0];
+ }
+
+ if ( -f "/etc/os-release" ) {
+ my @info_release = get_file_contents "/etc/os-release";
+ my $os_relase = $info_release[0];
+ $os_relase =~ s/.*="//;
+ $os_relase =~ s/"$//;
+ return $os_relase;
+ }
+
+ if ( -f "/etc/issue" ) {
+ my @info_release = get_file_contents "/etc/issue";
+ my $os_relase = $info_release[0];
+ $os_relase =~ s/\s+\\n.*//;
+ return $os_relase;
+ }
+ return "Unknown OS release";
+}
+
+sub get_fs_info() {
+ my @sinfo = `df -P | grep '%'`;
+ my @iinfo = `df -Pi| grep '%'`;
+ shift @iinfo;
+ @sinfo = map {
+ my $v = $_;
+ $v =~ s/.*\s(\d+)%\s+(.*)/$1\t$2/g;
+ $v;
+ } @sinfo;
+ foreach my $info (@sinfo) {
+ next if $info =~ m{(\d+)\t/(run|dev|sys|proc)($|/)};
+ if ( $info =~ /(\d+)\t(.*)/ ) {
+ if ( $1 > 85 ) {
+ badprint "mount point $2 is using $1 % total space";
+ push( @generalrec, "Add some space to $2 mountpoint." );
+ }
+ else {
+ infoprint "mount point $2 is using $1 % of total space";
+ }
+ $result{'Filesystem'}{'Space Pct'}{$2} = $1;
+ }
+ }
+
+ @iinfo = map {
+ my $v = $_;
+ $v =~ s/.*\s(\d+)%\s+(.*)/$1\t$2/g;
+ $v;
+ } @iinfo;
+ foreach my $info (@iinfo) {
+ next if $info =~ m{(\d+)\t/(run|dev|sys|proc)($|/)};
+ if ( $info =~ /(\d+)\t(.*)/ ) {
+ if ( $1 > 85 ) {
+ badprint "mount point $2 is using $1 % of max allowed inodes";
+ push( @generalrec,
+"Cleanup files from $2 mountpoint or reformat you filesystem."
+ );
+ }
+ else {
+ infoprint "mount point $2 is using $1 % of max allowed inodes";
+ }
+ $result{'Filesystem'}{'Inode Pct'}{$2} = $1;
+ }
+ }
+}
+
+sub merge_hash {
+ my $h1 = shift;
+ my $h2 = shift;
+ my %result = {};
+ foreach my $substanceref ( $h1, $h2 ) {
+ while ( my ( $k, $v ) = each %$substanceref ) {
+ next if ( exists $result{$k} );
+ $result{$k} = $v;
+ }
+ }
+ return \%result;
+}
+
+sub is_virtual_machine() {
+ my $isVm = `grep -Ec '^flags.*\ hypervisor\ ' /proc/cpuinfo`;
+ return ( $isVm == 0 ? 0 : 1 );
+}
+
+sub infocmd {
+ my $cmd = "@_";
+ debugprint "CMD: $cmd";
+ my @result = `$cmd`;
+ @result = remove_cr @result;
+ for my $l (@result) {
+ infoprint "$l";
+ }
+}
+
+sub infocmd_tab {
+ my $cmd = "@_";
+ debugprint "CMD: $cmd";
+ my @result = `$cmd`;
+ @result = remove_cr @result;
+ for my $l (@result) {
+ infoprint "\t$l";
+ }
+}
+
+sub infocmd_one {
+ my $cmd = "@_";
+ my @result = `$cmd`;
+ @result = remove_cr @result;
+ return join ', ', @result;
+}
+
+sub get_kernel_info() {
+ my @params = (
+ 'fs.aio-max-nr', 'fs.aio-nr',
+ 'fs.file-max', 'sunrpc.tcp_fin_timeout',
+ 'sunrpc.tcp_max_slot_table_entries', 'sunrpc.tcp_slot_table_entries',
+ 'vm.swappiness'
+ );
+ infoprint "Information about kernel tuning:";
+ foreach my $param (@params) {
+ infocmd_tab("sysctl $param 2>/dev/null");
+ $result{'OS'}{'Config'}{$param} = `sysctl -n $param 2>/dev/null`;
+ }
+ if ( `sysctl -n vm.swappiness` > 10 ) {
+ badprint
+ "Swappiness is > 10, please consider having a value lower than 10";
+ push @generalrec, "setup swappiness lower or equals to 10";
+ push @adjvars, 'vm.swappiness <= 10 (echo 0 > /proc/sys/vm/swappiness)';
+ }
+ else {
+ infoprint "Swappiness is < 10.";
+ }
+
+ # only if /proc/sys/sunrpc exists
+ my $tcp_slot_entries =
+ `sysctl -n sunrpc.tcp_slot_table_entries 2>/dev/null`;
+ if ( -f "/proc/sys/sunrpc"
+ and ( $tcp_slot_entries eq '' or $tcp_slot_entries < 100 ) )
+ {
+ badprint
+"Initial TCP slot entries is < 1M, please consider having a value greater than 100";
+ push @generalrec, "setup Initial TCP slot entries greater than 100";
+ push @adjvars,
+'sunrpc.tcp_slot_table_entries > 100 (echo 128 > /proc/sys/sunrpc/tcp_slot_table_entries)';
+ }
+ else {
+ infoprint "TCP slot entries is > 100.";
+ }
+
+ if ( `sysctl -n fs.aio-max-nr` < 1000000 ) {
+ badprint
+"Max running total of the number of events is < 1M, please consider having a value greater than 1M";
+ push @generalrec, "setup Max running number events greater than 1M";
+ push @adjvars,
+ 'fs.aio-max-nr > 1M (echo 1048576 > /proc/sys/fs/aio-max-nr)';
+ }
+ else {
+ infoprint "Max Number of AIO events is > 1M.";
+ }
+
+}
+
+sub get_system_info() {
+ $result{'OS'}{'Release'} = get_os_release();
+ infoprint get_os_release;
+ if (is_virtual_machine) {
+ infoprint "Machine type : Virtual machine";
+ $result{'OS'}{'Virtual Machine'} = 'YES';
+ }
+ else {
+ infoprint "Machine type : Physical machine";
+ $result{'OS'}{'Virtual Machine'} = 'NO';
+ }
+
+ $result{'Network'}{'Connected'} = 'NO';
+ `ping -c 1 ipecho.net &>/dev/null`;
+ my $isConnected = $?;
+ if ( $? == 0 ) {
+ infoprint "Internet : Connected";
+ $result{'Network'}{'Connected'} = 'YES';
+ }
+ else {
+ badprint "Internet : Disconnected";
+ }
+ $result{'OS'}{'Type'} = `uname -o`;
+ infoprint "Operating System Type : " . infocmd_one "uname -o";
+ $result{'OS'}{'Kernel'} = `uname -r`;
+ infoprint "Kernel Release : " . infocmd_one "uname -r";
+ $result{'OS'}{'Hostname'} = `hostname`;
+ $result{'Network'}{'Internal Ip'} = `hostname -I`;
+ infoprint "Hostname : " . infocmd_one "hostname";
+ infoprint "Network Cards : ";
+ infocmd_tab "ifconfig| grep -A1 mtu";
+ infoprint "Internal IP : " . infocmd_one "hostname -I";
+ my $httpcli = get_http_cli();
+ infoprint "HTTP client found: $httpcli" if defined $httpcli;
+
+ my $ext_ip = "";
+ if ( $httpcli =~ /curl$/ ) {
+ $ext_ip = infocmd_one "$httpcli ipecho.net/plain";
+ }
+ elsif ( $httpcli =~ /wget$/ ) {
+
+ $ext_ip = infocmd_one "$httpcli -q -O - ipecho.net/plain";
+ }
+ infoprint "External IP : " . $ext_ip;
+ $result{'Network'}{'External Ip'} = $ext_ip;
+ badprint
+ "External IP : Can't check because of Internet connectivity"
+ unless defined($httpcli);
+ infoprint "Name Servers : "
+ . infocmd_one "grep 'nameserver' /etc/resolv.conf \| awk '{print \$2}'";
+ infoprint "Logged In users : ";
+ infocmd_tab "who";
+ $result{'OS'}{'Logged users'} = `who`;
+ infoprint "Ram Usages in Mb : ";
+ infocmd_tab "free -m | grep -v +";
+ $result{'OS'}{'Free Memory RAM'} = `free -m | grep -v +`;
+ infoprint "Load Average : ";
+ infocmd_tab "top -n 1 -b | grep 'load average:'";
+ $result{'OS'}{'Load Average'} = `top -n 1 -b | grep 'load average:'`;
+
+#infoprint "System Uptime Days/(HH:MM) : `uptime | awk '{print $3,$4}' | cut -f1 -d,`";
+}
+
+sub system_recommendations {
+ return if ( $opt{sysstat} == 0 );
+ subheaderprint "System Linux Recommendations";
+ my $os = `uname`;
+ unless ( $os =~ /Linux/i ) {
+ infoprint "Skipped due to non Linux server";
+ return;
+ }
+ prettyprint "Look for related Linux system recommendations";
+
+ #prettyprint '-'x78;
+ get_system_info();
+ my $omem = get_other_process_memory;
+ infoprint "User process except mysqld used "
+ . hr_bytes_rnd($omem) . " RAM.";
+ if ( ( 0.15 * $physical_memory ) < $omem ) {
+ badprint
+"Other user process except mysqld used more than 15% of total physical memory "
+ . percentage( $omem, $physical_memory ) . "% ("
+ . hr_bytes_rnd($omem) . " / "
+ . hr_bytes_rnd($physical_memory) . ")";
+ push( @generalrec,
+"Consider stopping or dedicate server for additional process other than mysqld."
+ );
+ push( @adjvars,
+"DON'T APPLY SETTINGS BECAUSE THERE ARE TOO MANY PROCESSES RUNNING ON THIS SERVER. OOM KILL CAN OCCUR!"
+ );
+ }
+ else {
+ infoprint
+"Other user process except mysqld used less than 15% of total physical memory "
+ . percentage( $omem, $physical_memory ) . "% ("
+ . hr_bytes_rnd($omem) . " / "
+ . hr_bytes_rnd($physical_memory) . ")";
+ }
+
+ if ( $opt{'maxportallowed'} > 0 ) {
+ my @opened_ports = get_opened_ports;
+ infoprint "There is "
+ . scalar @opened_ports
+ . " listening port(s) on this server.";
+ if ( scalar(@opened_ports) > $opt{'maxportallowed'} ) {
+ badprint "There is too many listening ports: "
+ . scalar(@opened_ports)
+ . " opened > "
+ . $opt{'maxportallowed'}
+ . "allowed.";
+ push( @generalrec,
+"Consider dedicating a server for your database installation with less services running on !"
+ );
+ }
+ else {
+ goodprint "There is less than "
+ . $opt{'maxportallowed'}
+ . " opened ports on this server.";
+ }
+ }
+
+ foreach my $banport (@banned_ports) {
+ if ( is_open_port($banport) ) {
+ badprint "Banned port: $banport is opened..";
+ push( @generalrec,
+"Port $banport is opened. Consider stopping program handling this port."
+ );
+ }
+ else {
+ goodprint "$banport is not opened.";
+ }
+ }
+
+ get_fs_info;
+ get_kernel_info;
+}
+
+sub security_recommendations {
+ subheaderprint "Security Recommendations";
+ if ( $opt{skippassword} eq 1 ) {
+ infoprint "Skipped due to --skippassword option";
+ return;
+ }
+
+ my $PASS_COLUMN_NAME = 'password';
+ if ( $myvar{'version'} =~ /5.7/ ) {
+ $PASS_COLUMN_NAME = 'authentication_string';
+ }
+ debugprint "Password column = $PASS_COLUMN_NAME";
+
+ # Looking for Anonymous users
+ my @mysqlstatlist = select_array
+"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL";
+ debugprint Dumper \@mysqlstatlist;
+
+ #exit 0;
+ if (@mysqlstatlist) {
+ foreach my $line ( sort @mysqlstatlist ) {
+ chomp($line);
+ badprint "User '" . $line . "' is an anonymous account.";
+ }
+ push( @generalrec,
+ "Remove Anonymous User accounts - there are "
+ . scalar(@mysqlstatlist)
+ . " anonymous accounts." );
+ }
+ else {
+ goodprint "There are no anonymous accounts for any database users";
+ }
+ if ( mysql_version_le( 5, 1 ) ) {
+ badprint "No more password checks for MySQL version <=5.1";
+ badprint "MySQL version <=5.1 are deprecated and end of support.";
+ return;
+ }
+
+ # Looking for Empty Password
+ if ( mysql_version_ge( 5, 5 ) ) {
+ @mysqlstatlist = select_array
+"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL) AND plugin NOT IN ('unix_socket', 'win_socket')";
+ }
+ else {
+ @mysqlstatlist = select_array
+"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL)";
+ }
+ if (@mysqlstatlist) {
+ foreach my $line ( sort @mysqlstatlist ) {
+ chomp($line);
+ badprint "User '" . $line . "' has no password set.";
+ }
+ push( @generalrec,
+"Set up a Password for user with the following SQL statement ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )"
+ );
+ }
+ else {
+ goodprint "All database users have passwords assigned";
+ }
+
+ if ( mysql_version_ge( 5, 7 ) ) {
+ my $valPlugin = select_one(
+"select count(*) from information_schema.plugins where PLUGIN_NAME='validate_password' AND PLUGIN_STATUS='ACTIVE'"
+ );
+ if ( $valPlugin >= 1 ) {
+ infoprint
+"Bug #80860 MySQL 5.7: Avoid testing password when validate_password is activated";
+ return;
+ }
+ }
+
+ # Looking for User with user/ uppercase /capitalise user as password
+ @mysqlstatlist = select_array
+"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE CAST($PASS_COLUMN_NAME as Binary) = PASSWORD(user) OR CAST($PASS_COLUMN_NAME as Binary) = PASSWORD(UPPER(user)) OR CAST($PASS_COLUMN_NAME as Binary) = PASSWORD(CONCAT(UPPER(LEFT(User, 1)), SUBSTRING(User, 2, LENGTH(User))))";
+ if (@mysqlstatlist) {
+ foreach my $line ( sort @mysqlstatlist ) {
+ chomp($line);
+ badprint "User '" . $line . "' has user name as password.";
+ }
+ push( @generalrec,
+"Set up a Secure Password for user\@host ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )"
+ );
+ }
+
+ @mysqlstatlist = select_array
+ "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE HOST='%'";
+ if (@mysqlstatlist) {
+ foreach my $line ( sort @mysqlstatlist ) {
+ chomp($line);
+ badprint "User '" . $line . "' hasn't specific host restriction.";
+ }
+ push( @generalrec,
+ "Restrict Host for user\@% to user\@SpecificDNSorIp" );
+ }
+
+ unless ( -f $basic_password_files ) {
+ badprint "There is no basic password file list!";
+ return;
+ }
+
+ my @passwords = get_basic_passwords $basic_password_files;
+ infoprint "There are "
+ . scalar(@passwords)
+ . " basic passwords in the list.";
+ my $nbins = 0;
+ my $passreq;
+ if (@passwords) {
+ my $nbInterPass=0;
+ foreach my $pass (@passwords) {
+ $nbInterPass++;
+
+ $pass =~ s/\s//g;
+ $pass =~ s/\'/\\\'/g;
+ chomp($pass);
+
+ # Looking for User with user/ uppercase /capitalise weak password
+ @mysqlstatlist =
+ select_array
+"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE $PASS_COLUMN_NAME = PASSWORD('"
+ . $pass
+ . "') OR $PASS_COLUMN_NAME = PASSWORD(UPPER('"
+ . $pass
+ . "')) OR $PASS_COLUMN_NAME = PASSWORD(CONCAT(UPPER(LEFT('"
+ . $pass
+ . "', 1)), SUBSTRING('"
+ . $pass
+ . "', 2, LENGTH('"
+ . $pass . "'))))";
+ debugprint "There is " . scalar(@mysqlstatlist) . " items.";
+ if (@mysqlstatlist) {
+ foreach my $line (@mysqlstatlist) {
+ chomp($line);
+ badprint "User '" . $line
+ . "' is using weak password: $pass in a lower, upper or capitalize derivative version.";
+ $nbins++;
+ }
+ }
+ debugprint "$nbInterPass / ".scalar(@passwords) if ($nbInterPass %1000 ==0);
+ }
+ }
+ if ( $nbins > 0 ) {
+ push( @generalrec, $nbins . " user(s) used basic or weak password." );
+ }
+}
+
+sub get_replication_status {
+ subheaderprint "Replication Metrics";
+ infoprint "Galera Synchronous replication: " . $myvar{'have_galera'};
+ if ( scalar( keys %myslaves ) == 0 ) {
+ infoprint "No replication slave(s) for this server.";
+ }
+ else {
+ infoprint "This server is acting as master for "
+ . scalar( keys %myslaves )
+ . " server(s).";
+ }
+
+ if ( scalar( keys %myrepl ) == 0 and scalar( keys %myslaves ) == 0 ) {
+ infoprint "This is a standalone server.";
+ return;
+ }
+ if ( scalar( keys %myrepl ) == 0 ) {
+ infoprint "No replication setup for this server.";
+ return;
+ }
+ $result{'Replication'}{'status'} = \%myrepl;
+ my ($io_running) = $myrepl{'Slave_IO_Running'};
+ debugprint "IO RUNNING: $io_running ";
+ my ($sql_running) = $myrepl{'Slave_SQL_Running'};
+ debugprint "SQL RUNNING: $sql_running ";
+ my ($seconds_behind_master) = $myrepl{'Seconds_Behind_Master'};
+ debugprint "SECONDS : $seconds_behind_master ";
+
+ if ( defined($io_running)
+ and ( $io_running !~ /yes/i or $sql_running !~ /yes/i ) )
+ {
+ badprint
+ "This replication slave is not running but seems to be configured.";
+ }
+ if ( defined($io_running)
+ && $io_running =~ /yes/i
+ && $sql_running =~ /yes/i )
+ {
+ if ( $myvar{'read_only'} eq 'OFF' ) {
+ badprint
+"This replication slave is running with the read_only option disabled.";
+ }
+ else {
+ goodprint
+"This replication slave is running with the read_only option enabled.";
+ }
+ if ( $seconds_behind_master > 0 ) {
+ badprint
+"This replication slave is lagging and slave has $seconds_behind_master second(s) behind master host.";
+ }
+ else {
+ goodprint "This replication slave is up to date with master.";
+ }
+ }
+}
+
+sub validate_mysql_version {
+ ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) =
+ $myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/;
+ $mysqlverminor ||= 0;
+ $mysqlvermicro ||= 0;
+ if ( !mysql_version_ge( 5, 1 ) ) {
+ badprint "Your MySQL version "
+ . $myvar{'version'}
+ . " is EOL software! Upgrade soon!";
+ }
+ elsif ( ( mysql_version_ge(6) and mysql_version_le(9) )
+ or mysql_version_ge(12) )
+ {
+ badprint "Currently running unsupported MySQL version "
+ . $myvar{'version'} . "";
+ }
+ else {
+ goodprint "Currently running supported MySQL version "
+ . $myvar{'version'} . "";
+ }
+}
+
+# Checks if MySQL version is greater than equal to (major, minor, micro)
+sub mysql_version_ge {
+ my ( $maj, $min, $mic ) = @_;
+ $min ||= 0;
+ $mic ||= 0;
+ return
+ int($mysqlvermajor) > int($maj)
+ || ( int($mysqlvermajor) == int($maj) && int($mysqlverminor) > int($min) )
+ || ( int($mysqlverminor) == int($min)
+ && int($mysqlvermicro) >= int($mic) );
+}
+
+# Checks if MySQL version is lower than equal to (major, minor, micro)
+sub mysql_version_le {
+ my ( $maj, $min, $mic ) = @_;
+ $min ||= 0;
+ $mic ||= 0;
+ return
+ int($mysqlvermajor) < int($maj)
+ || ( int($mysqlvermajor) == int($maj) && int($mysqlverminor) < int($min) )
+ || ( int($mysqlverminor) == int($min)
+ && int($mysqlvermicro) <= int($mic) );
+}
+
+# Checks if MySQL micro version is lower than equal to (major, minor, micro)
+sub mysql_micro_version_le {
+ my ( $maj, $min, $mic ) = @_;
+ return $mysqlvermajor == $maj
+ && ( $mysqlverminor == $min
+ && $mysqlvermicro <= $mic );
+}
+
+# Checks for 32-bit boxes with more than 2GB of RAM
+my ($arch);
+
+sub check_architecture {
+ if ( $doremote eq 1 ) { return; }
+ if ( `uname` =~ /SunOS/ && `isainfo -b` =~ /64/ ) {
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` !~ /SunOS/ && `uname -m` =~ /64/ ) {
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` =~ /AIX/ && `bootinfo -K` =~ /64/ ) {
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` =~ /NetBSD|OpenBSD/ && `sysctl -b hw.machine` =~ /64/ ) {
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` =~ /FreeBSD/ && `sysctl -b hw.machine_arch` =~ /64/ ) {
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /Power Macintosh/ ) {
+
+# Darwin box.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu1228.15.4~1/RELEASE_PPC Power Macintosh
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /x86_64/ ) {
+
+# Darwin gibas.local 12.3.0 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64
+ $arch = 64;
+ goodprint "Operating on 64-bit architecture";
+ }
+ else {
+ $arch = 32;
+ if ( $physical_memory > 2147483648 ) {
+ badprint
+"Switch to 64-bit OS - MySQL cannot currently use all of your RAM";
+ }
+ else {
+ goodprint "Operating on 32-bit architecture with less than 2GB RAM";
+ }
+ }
+ $result{'OS'}{'Architecture'} = "$arch bits";
+
+}
+
+# Start up a ton of storage engine counts/statistics
+my ( %enginestats, %enginecount, $fragtables );
+
+sub check_storage_engines {
+ if ( $opt{skipsize} eq 1 ) {
+ subheaderprint "Storage Engine Statistics";
+ infoprint "Skipped due to --skipsize option";
+ return;
+ }
+ subheaderprint "Storage Engine Statistics";
+
+ my $engines;
+ if ( mysql_version_ge( 5, 5 ) ) {
+ my @engineresults = select_array
+"SELECT ENGINE,SUPPORT FROM information_schema.ENGINES ORDER BY ENGINE ASC";
+ foreach my $line (@engineresults) {
+ my ( $engine, $engineenabled );
+ ( $engine, $engineenabled ) = $line =~ /([a-zA-Z_]*)\s+([a-zA-Z]+)/;
+ $result{'Engine'}{$engine}{'Enabled'} = $engineenabled;
+ $engines .=
+ ( $engineenabled eq "YES" || $engineenabled eq "DEFAULT" )
+ ? greenwrap "+" . $engine . " "
+ : redwrap "-" . $engine . " ";
+ }
+ }
+ elsif ( mysql_version_ge( 5, 1, 5 ) ) {
+ my @engineresults = select_array
+"SELECT ENGINE,SUPPORT FROM information_schema.ENGINES WHERE ENGINE NOT IN ('performance_schema','MyISAM','MERGE','MEMORY') ORDER BY ENGINE ASC";
+ foreach my $line (@engineresults) {
+ my ( $engine, $engineenabled );
+ ( $engine, $engineenabled ) = $line =~ /([a-zA-Z_]*)\s+([a-zA-Z]+)/;
+ $result{'Engine'}{$engine}{'Enabled'} = $engineenabled;
+ $engines .=
+ ( $engineenabled eq "YES" || $engineenabled eq "DEFAULT" )
+ ? greenwrap "+" . $engine . " "
+ : redwrap "-" . $engine . " ";
+ }
+ }
+ else {
+ $engines .=
+ ( defined $myvar{'have_archive'} && $myvar{'have_archive'} eq "YES" )
+ ? greenwrap "+Archive "
+ : redwrap "-Archive ";
+ $engines .=
+ ( defined $myvar{'have_bdb'} && $myvar{'have_bdb'} eq "YES" )
+ ? greenwrap "+BDB "
+ : redwrap "-BDB ";
+ $engines .=
+ ( defined $myvar{'have_federated_engine'}
+ && $myvar{'have_federated_engine'} eq "YES" )
+ ? greenwrap "+Federated "
+ : redwrap "-Federated ";
+ $engines .=
+ ( defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES" )
+ ? greenwrap "+InnoDB "
+ : redwrap "-InnoDB ";
+ $engines .=
+ ( defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES" )
+ ? greenwrap "+ISAM "
+ : redwrap "-ISAM ";
+ $engines .=
+ ( defined $myvar{'have_ndbcluster'}
+ && $myvar{'have_ndbcluster'} eq "YES" )
+ ? greenwrap "+NDBCluster "
+ : redwrap "-NDBCluster ";
+ }
+
+ my @dblist = grep { $_ ne 'lost+found' } select_array "SHOW DATABASES";
+
+ $result{'Databases'}{'List'} = [@dblist];
+ infoprint "Status: $engines";
+ if ( mysql_version_ge( 5, 1, 5 ) ) {
+
+# MySQL 5 servers can have table sizes calculated quickly from information schema
+ my @templist = select_array
+"SELECT ENGINE,SUM(DATA_LENGTH+INDEX_LENGTH),COUNT(ENGINE),SUM(DATA_LENGTH),SUM(INDEX_LENGTH) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema', 'performance_schema', 'mysql') AND ENGINE IS NOT NULL GROUP BY ENGINE ORDER BY ENGINE ASC;";
+
+ my ( $engine, $size, $count, $dsize, $isize );
+ foreach my $line (@templist) {
+ ( $engine, $size, $count, $dsize, $isize ) =
+ $line =~ /([a-zA-Z_]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/;
+ debugprint "Engine Found: $engine";
+ next unless ( defined($engine) );
+ $size = 0 unless defined($size);
+ $isize = 0 unless defined($isize);
+ $dsize = 0 unless defined($dsize);
+ $count = 0 unless defined($count);
+ $enginestats{$engine} = $size;
+ $enginecount{$engine} = $count;
+ $result{'Engine'}{$engine}{'Table Number'} = $count;
+ $result{'Engine'}{$engine}{'Total Size'} = $size;
+ $result{'Engine'}{$engine}{'Data Size'} = $dsize;
+ $result{'Engine'}{$engine}{'Index Size'} = $isize;
+ }
+ my $not_innodb = '';
+ if ( not defined $result{'Variables'}{'innodb_file_per_table'} ) {
+ $not_innodb = "AND NOT ENGINE='InnoDB'";
+ } elsif ( $result{'Variables'}{'innodb_file_per_table'} eq 'OFF' ) {
+ $not_innodb = "AND NOT ENGINE='InnoDB'";
+ }
+ $result{'Tables'}{'Fragmented tables'} =
+ [ select_array
+"SELECT CONCAT(CONCAT(TABLE_SCHEMA, '.'), TABLE_NAME),DATA_FREE FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema','performance_schema', 'mysql') AND DATA_LENGTH/1024/1024>100 AND DATA_FREE*100/(DATA_LENGTH+INDEX_LENGTH+DATA_FREE) > 10 AND NOT ENGINE='MEMORY' $not_innodb"
+ ];
+ $fragtables = scalar @{ $result{'Tables'}{'Fragmented tables'} };
+
+ }
+ else {
+
+ # MySQL < 5 servers take a lot of work to get table sizes
+ my @tblist;
+
+# Now we build a database list, and loop through it to get storage engine stats for tables
+ foreach my $db (@dblist) {
+ chomp($db);
+ if ( $db eq "information_schema"
+ or $db eq "performance_schema"
+ or $db eq "mysql"
+ or $db eq "lost+found" )
+ {
+ next;
+ }
+ my @ixs = ( 1, 6, 9 );
+ if ( !mysql_version_ge( 4, 1 ) ) {
+
+ # MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column
+ @ixs = ( 1, 5, 8 );
+ }
+ push( @tblist,
+ map { [ (split)[@ixs] ] }
+ select_array "SHOW TABLE STATUS FROM \\\`$db\\\`" );
+ }
+
+ # Parse through the table list to generate storage engine counts/statistics
+ $fragtables = 0;
+ foreach my $tbl (@tblist) {
+ debugprint "Data dump " . Dumper(@$tbl);
+ my ( $engine, $size, $datafree ) = @$tbl;
+ next if $engine eq 'NULL';
+ $size = 0 if $size eq 'NULL';
+ $datafree = 0 if $datafree eq 'NULL';
+ if ( defined $enginestats{$engine} ) {
+ $enginestats{$engine} += $size;
+ $enginecount{$engine} += 1;
+ }
+ else {
+ $enginestats{$engine} = $size;
+ $enginecount{$engine} = 1;
+ }
+ if ( $datafree > 0 ) {
+ $fragtables++;
+ }
+ }
+ }
+ while ( my ( $engine, $size ) = each(%enginestats) ) {
+ infoprint "Data in $engine tables: "
+ . hr_bytes_rnd($size)
+ . " (Tables: "
+ . $enginecount{$engine} . ")" . "";
+ }
+
+ # If the storage engine isn't being used, recommend it to be disabled
+ if ( !defined $enginestats{'InnoDB'}
+ && defined $myvar{'have_innodb'}
+ && $myvar{'have_innodb'} eq "YES" )
+ {
+ badprint "InnoDB is enabled but isn't being used";
+ push( @generalrec,
+ "Add skip-innodb to MySQL configuration to disable InnoDB" );
+ }
+ if ( !defined $enginestats{'BerkeleyDB'}
+ && defined $myvar{'have_bdb'}
+ && $myvar{'have_bdb'} eq "YES" )
+ {
+ badprint "BDB is enabled but isn't being used";
+ push( @generalrec,
+ "Add skip-bdb to MySQL configuration to disable BDB" );
+ }
+ if ( !defined $enginestats{'ISAM'}
+ && defined $myvar{'have_isam'}
+ && $myvar{'have_isam'} eq "YES" )
+ {
+ badprint "MYISAM is enabled but isn't being used";
+ push( @generalrec,
+"Add skip-isam to MySQL configuration to disable ISAM (MySQL > 4.1.0)"
+ );
+ }
+
+ # Fragmented tables
+ if ( $fragtables > 0 ) {
+ badprint "Total fragmented tables: $fragtables";
+ push( @generalrec,
+ "Run OPTIMIZE TABLE to defragment tables for better performance" );
+ my $total_free = 0;
+ foreach my $table_line ( @{ $result{'Tables'}{'Fragmented tables'} } ) {
+ my ( $table_name, $data_free ) = split( /\s+/, $table_line );
+ $data_free = 0 if ( !defined($data_free) or $data_free eq '' );
+ $data_free = $data_free / 1024 / 1024;
+ $total_free += $data_free;
+ push( @generalrec,
+ " OPTIMIZE TABLE $table_name; -- can free $data_free MB" );
+ }
+ push( @generalrec,
+ "Total freed space after theses OPTIMIZE TABLE : $total_free Mb" );
+ }
+ else {
+ goodprint "Total fragmented tables: $fragtables";
+ }
+
+ # Auto increments
+ my %tblist;
+
+ # Find the maximum integer
+ my $maxint = select_one "SELECT ~0";
+ $result{'MaxInt'} = $maxint;
+
+# Now we use a database list, and loop through it to get storage engine stats for tables
+ foreach my $db (@dblist) {
+ chomp($db);
+
+ if ( !$tblist{$db} ) {
+ $tblist{$db} = ();
+ }
+
+ if ( $db eq "information_schema" ) { next; }
+ my @ia = ( 0, 10 );
+ if ( !mysql_version_ge( 4, 1 ) ) {
+
+ # MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column
+ @ia = ( 0, 9 );
+ }
+ push(
+ @{ $tblist{$db} },
+ map { [ (split)[@ia] ] }
+ select_array "SHOW TABLE STATUS FROM \\\`$db\\\`"
+ );
+ }
+
+ my @dbnames = keys %tblist;
+
+ foreach my $db (@dbnames) {
+ foreach my $tbl ( @{ $tblist{$db} } ) {
+ my ( $name, $autoincrement ) = @$tbl;
+
+ if ( $autoincrement =~ /^\d+?$/ ) {
+ my $percent = percentage( $autoincrement, $maxint );
+ $result{'PctAutoIncrement'}{"$db.$name"} = $percent;
+ if ( $percent >= 75 ) {
+ badprint
+"Table '$db.$name' has an autoincrement value near max capacity ($percent%)";
+ }
+ }
+ }
+ }
+
+}
+
+my %mycalc;
+
+sub calculations {
+ if ( $mystat{'Questions'} < 1 ) {
+ badprint
+ "Your server has not answered any queries - cannot continue...";
+ exit 2;
+ }
+
+ # Per-thread memory
+ if ( mysql_version_ge(4) ) {
+ $mycalc{'per_thread_buffers'} =
+ $myvar{'read_buffer_size'} +
+ $myvar{'read_rnd_buffer_size'} +
+ $myvar{'sort_buffer_size'} +
+ $myvar{'thread_stack'} +
+ $myvar{'join_buffer_size'};
+ }
+ else {
+ $mycalc{'per_thread_buffers'} =
+ $myvar{'record_buffer'} +
+ $myvar{'record_rnd_buffer'} +
+ $myvar{'sort_buffer'} +
+ $myvar{'thread_stack'} +
+ $myvar{'join_buffer_size'};
+ }
+ $mycalc{'total_per_thread_buffers'} =
+ $mycalc{'per_thread_buffers'} * $myvar{'max_connections'};
+ $mycalc{'max_total_per_thread_buffers'} =
+ $mycalc{'per_thread_buffers'} * $mystat{'Max_used_connections'};
+
+ # Server-wide memory
+ $mycalc{'max_tmp_table_size'} =
+ ( $myvar{'tmp_table_size'} > $myvar{'max_heap_table_size'} )
+ ? $myvar{'max_heap_table_size'}
+ : $myvar{'tmp_table_size'};
+ $mycalc{'server_buffers'} =
+ $myvar{'key_buffer_size'} + $mycalc{'max_tmp_table_size'};
+ $mycalc{'server_buffers'} +=
+ ( defined $myvar{'innodb_buffer_pool_size'} )
+ ? $myvar{'innodb_buffer_pool_size'}
+ : 0;
+ $mycalc{'server_buffers'} +=
+ ( defined $myvar{'innodb_additional_mem_pool_size'} )
+ ? $myvar{'innodb_additional_mem_pool_size'}
+ : 0;
+ $mycalc{'server_buffers'} +=
+ ( defined $myvar{'innodb_log_buffer_size'} )
+ ? $myvar{'innodb_log_buffer_size'}
+ : 0;
+ $mycalc{'server_buffers'} +=
+ ( defined $myvar{'query_cache_size'} ) ? $myvar{'query_cache_size'} : 0;
+ $mycalc{'server_buffers'} +=
+ ( defined $myvar{'aria_pagecache_buffer_size'} )
+ ? $myvar{'aria_pagecache_buffer_size'}
+ : 0;
+
+# Global memory
+# Max used memory is memory used by MySQL based on Max_used_connections
+# This is the max memory used theorically calculated with the max concurrent connection number reached by mysql
+ $mycalc{'max_used_memory'} =
+ $mycalc{'server_buffers'} +
+ $mycalc{"max_total_per_thread_buffers"} +
+ get_pf_memory() +
+ get_gcache_memory();
+ $mycalc{'pct_max_used_memory'} =
+ percentage( $mycalc{'max_used_memory'}, $physical_memory );
+
+# Total possible memory is memory needed by MySQL based on max_connections
+# This is the max memory MySQL can theorically used if all connections allowed has opened by mysql
+ $mycalc{'max_peak_memory'} =
+ $mycalc{'server_buffers'} +
+ $mycalc{'total_per_thread_buffers'} +
+ get_pf_memory() +
+ get_gcache_memory();
+ $mycalc{'pct_max_physical_memory'} =
+ percentage( $mycalc{'max_peak_memory'}, $physical_memory );
+
+ debugprint "Max Used Memory: "
+ . hr_bytes( $mycalc{'max_used_memory'} ) . "";
+ debugprint "Max Used Percentage RAM: "
+ . $mycalc{'pct_max_used_memory'} . "%";
+
+ debugprint "Max Peak Memory: "
+ . hr_bytes( $mycalc{'max_peak_memory'} ) . "";
+ debugprint "Max Peak Percentage RAM: "
+ . $mycalc{'pct_max_physical_memory'} . "%";
+
+ # Slow queries
+ $mycalc{'pct_slow_queries'} =
+ int( ( $mystat{'Slow_queries'} / $mystat{'Questions'} ) * 100 );
+
+ # Connections
+ $mycalc{'pct_connections_used'} = int(
+ ( $mystat{'Max_used_connections'} / $myvar{'max_connections'} ) * 100 );
+ $mycalc{'pct_connections_used'} =
+ ( $mycalc{'pct_connections_used'} > 100 )
+ ? 100
+ : $mycalc{'pct_connections_used'};
+
+ # Aborted Connections
+ $mycalc{'pct_connections_aborted'} =
+ percentage( $mystat{'Aborted_connects'}, $mystat{'Connections'} );
+ debugprint "Aborted_connects: " . $mystat{'Aborted_connects'} . "";
+ debugprint "Connections: " . $mystat{'Connections'} . "";
+ debugprint "pct_connections_aborted: "
+ . $mycalc{'pct_connections_aborted'} . "";
+
+ # Key buffers
+ if ( mysql_version_ge( 4, 1 ) && $myvar{'key_buffer_size'} > 0 ) {
+ $mycalc{'pct_key_buffer_used'} = sprintf(
+ "%.1f",
+ (
+ 1 - (
+ (
+ $mystat{'Key_blocks_unused'} *
+ $myvar{'key_cache_block_size'}
+ ) / $myvar{'key_buffer_size'}
+ )
+ ) * 100
+ );
+ }
+ else {
+ $mycalc{'pct_key_buffer_used'} = 0;
+ }
+
+ if ( $mystat{'Key_read_requests'} > 0 ) {
+ $mycalc{'pct_keys_from_mem'} = sprintf(
+ "%.1f",
+ (
+ 100 - (
+ ( $mystat{'Key_reads'} / $mystat{'Key_read_requests'} ) *
+ 100
+ )
+ )
+ );
+ }
+ else {
+ $mycalc{'pct_keys_from_mem'} = 0;
+ }
+ if ( defined $mystat{'Aria_pagecache_read_requests'}
+ && $mystat{'Aria_pagecache_read_requests'} > 0 )
+ {
+ $mycalc{'pct_aria_keys_from_mem'} = sprintf(
+ "%.1f",
+ (
+ 100 - (
+ (
+ $mystat{'Aria_pagecache_reads'} /
+ $mystat{'Aria_pagecache_read_requests'}
+ ) * 100
+ )
+ )
+ );
+ }
+ else {
+ $mycalc{'pct_aria_keys_from_mem'} = 0;
+ }
+
+ if ( $mystat{'Key_write_requests'} > 0 ) {
+ $mycalc{'pct_wkeys_from_mem'} = sprintf(
+ "%.1f",
+ (
+ 100 - (
+ ( $mystat{'Key_writes'} / $mystat{'Key_write_requests'} ) *
+ 100
+ )
+ )
+ );
+ }
+ else {
+ $mycalc{'pct_wkeys_from_mem'} = 0;
+ }
+
+ if ( $doremote eq 0 and !mysql_version_ge(5) ) {
+ my $size = 0;
+ $size += (split)[0]
+ for
+`find $myvar{'datadir'} -name "*.MYI" 2>&1 | xargs du -L $duflags 2>&1`;
+ $mycalc{'total_myisam_indexes'} = $size;
+ $mycalc{'total_aria_indexes'} = 0;
+ }
+ elsif ( mysql_version_ge(5) ) {
+ $mycalc{'total_myisam_indexes'} = select_one
+"SELECT IFNULL(SUM(INDEX_LENGTH),0) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema') AND ENGINE = 'MyISAM';";
+ $mycalc{'total_aria_indexes'} = select_one
+"SELECT IFNULL(SUM(INDEX_LENGTH),0) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema') AND ENGINE = 'Aria';";
+ }
+ if ( defined $mycalc{'total_myisam_indexes'}
+ and $mycalc{'total_myisam_indexes'} == 0 )
+ {
+ $mycalc{'total_myisam_indexes'} = "fail";
+ }
+ elsif ( defined $mycalc{'total_myisam_indexes'} ) {
+ chomp( $mycalc{'total_myisam_indexes'} );
+ }
+ if ( defined $mycalc{'total_aria_indexes'}
+ and $mycalc{'total_aria_indexes'} == 0 )
+ {
+ $mycalc{'total_aria_indexes'} = 1;
+ }
+ elsif ( defined $mycalc{'total_aria_indexes'} ) {
+ chomp( $mycalc{'total_aria_indexes'} );
+ }
+
+ # Query cache
+ if ( mysql_version_ge(4) ) {
+ $mycalc{'query_cache_efficiency'} = sprintf(
+ "%.1f",
+ (
+ $mystat{'Qcache_hits'} /
+ ( $mystat{'Com_select'} + $mystat{'Qcache_hits'} )
+ ) * 100
+ );
+ if ( $myvar{'query_cache_size'} ) {
+ $mycalc{'pct_query_cache_used'} = sprintf(
+ "%.1f",
+ 100 - (
+ $mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}
+ ) * 100
+ );
+ }
+ if ( $mystat{'Qcache_lowmem_prunes'} == 0 ) {
+ $mycalc{'query_cache_prunes_per_day'} = 0;
+ }
+ else {
+ $mycalc{'query_cache_prunes_per_day'} = int(
+ $mystat{'Qcache_lowmem_prunes'} / ( $mystat{'Uptime'} / 86400 )
+ );
+ }
+ }
+
+ # Sorting
+ $mycalc{'total_sorts'} = $mystat{'Sort_scan'} + $mystat{'Sort_range'};
+ if ( $mycalc{'total_sorts'} > 0 ) {
+ $mycalc{'pct_temp_sort_table'} = int(
+ ( $mystat{'Sort_merge_passes'} / $mycalc{'total_sorts'} ) * 100 );
+ }
+
+ # Joins
+ $mycalc{'joins_without_indexes'} =
+ $mystat{'Select_range_check'} + $mystat{'Select_full_join'};
+ $mycalc{'joins_without_indexes_per_day'} =
+ int( $mycalc{'joins_without_indexes'} / ( $mystat{'Uptime'} / 86400 ) );
+
+ # Temporary tables
+ if ( $mystat{'Created_tmp_tables'} > 0 ) {
+ if ( $mystat{'Created_tmp_disk_tables'} > 0 ) {
+ $mycalc{'pct_temp_disk'} = int(
+ (
+ $mystat{'Created_tmp_disk_tables'} /
+ $mystat{'Created_tmp_tables'}
+ ) * 100
+ );
+ }
+ else {
+ $mycalc{'pct_temp_disk'} = 0;
+ }
+ }
+
+ # Table cache
+ if ( $mystat{'Opened_tables'} > 0 ) {
+ $mycalc{'table_cache_hit_rate'} =
+ int( $mystat{'Open_tables'} * 100 / $mystat{'Opened_tables'} );
+ }
+ else {
+ $mycalc{'table_cache_hit_rate'} = 100;
+ }
+
+ # Open files
+ if ( $myvar{'open_files_limit'} > 0 ) {
+ $mycalc{'pct_files_open'} =
+ int( $mystat{'Open_files'} * 100 / $myvar{'open_files_limit'} );
+ }
+
+ # Table locks
+ if ( $mystat{'Table_locks_immediate'} > 0 ) {
+ if ( $mystat{'Table_locks_waited'} == 0 ) {
+ $mycalc{'pct_table_locks_immediate'} = 100;
+ }
+ else {
+ $mycalc{'pct_table_locks_immediate'} = int(
+ $mystat{'Table_locks_immediate'} * 100 / (
+ $mystat{'Table_locks_waited'} +
+ $mystat{'Table_locks_immediate'}
+ )
+ );
+ }
+ }
+
+ # Thread cache
+ $mycalc{'thread_cache_hit_rate'} =
+ int( 100 -
+ ( ( $mystat{'Threads_created'} / $mystat{'Connections'} ) * 100 ) );
+
+ # Other
+ if ( $mystat{'Connections'} > 0 ) {
+ $mycalc{'pct_aborted_connections'} =
+ int( ( $mystat{'Aborted_connects'} / $mystat{'Connections'} ) * 100 );
+ }
+ if ( $mystat{'Questions'} > 0 ) {
+ $mycalc{'total_reads'} = $mystat{'Com_select'};
+ $mycalc{'total_writes'} =
+ $mystat{'Com_delete'} +
+ $mystat{'Com_insert'} +
+ $mystat{'Com_update'} +
+ $mystat{'Com_replace'};
+ if ( $mycalc{'total_reads'} == 0 ) {
+ $mycalc{'pct_reads'} = 0;
+ $mycalc{'pct_writes'} = 100;
+ }
+ else {
+ $mycalc{'pct_reads'} = int(
+ (
+ $mycalc{'total_reads'} /
+ ( $mycalc{'total_reads'} + $mycalc{'total_writes'} )
+ ) * 100
+ );
+ $mycalc{'pct_writes'} = 100 - $mycalc{'pct_reads'};
+ }
+ }
+
+ # InnoDB
+ if ( $myvar{'have_innodb'} eq "YES" ) {
+ $mycalc{'innodb_log_size_pct'} =
+ ( $myvar{'innodb_log_file_size'} *$myvar{'innodb_log_files_in_group'} * 100 /
+ $myvar{'innodb_buffer_pool_size'} );
+ }
+
+ # InnoDB Buffer pool read cache effiency
+ (
+ $mystat{'Innodb_buffer_pool_read_requests'},
+ $mystat{'Innodb_buffer_pool_reads'}
+ )
+ = ( 1, 1 )
+ unless defined $mystat{'Innodb_buffer_pool_reads'};
+ $mycalc{'pct_read_efficiency'} = percentage(
+ (
+ $mystat{'Innodb_buffer_pool_read_requests'} -
+ $mystat{'Innodb_buffer_pool_reads'}
+ ),
+ $mystat{'Innodb_buffer_pool_read_requests'}
+ ) if defined $mystat{'Innodb_buffer_pool_read_requests'};
+ debugprint "pct_read_efficiency: " . $mycalc{'pct_read_efficiency'} . "";
+ debugprint "Innodb_buffer_pool_reads: "
+ . $mystat{'Innodb_buffer_pool_reads'} . "";
+ debugprint "Innodb_buffer_pool_read_requests: "
+ . $mystat{'Innodb_buffer_pool_read_requests'} . "";
+
+ # InnoDB log write cache effiency
+ ( $mystat{'Innodb_log_write_requests'}, $mystat{'Innodb_log_writes'} ) =
+ ( 1, 1 )
+ unless defined $mystat{'Innodb_log_writes'};
+ $mycalc{'pct_write_efficiency'} = percentage(
+ ( $mystat{'Innodb_log_write_requests'} - $mystat{'Innodb_log_writes'} ),
+ $mystat{'Innodb_log_write_requests'}
+ ) if defined $mystat{'Innodb_log_write_requests'};
+ debugprint "pct_write_efficiency: " . $mycalc{'pct_write_efficiency'} . "";
+ debugprint "Innodb_log_writes: " . $mystat{'Innodb_log_writes'} . "";
+ debugprint "Innodb_log_write_requests: "
+ . $mystat{'Innodb_log_write_requests'} . "";
+ $mycalc{'pct_innodb_buffer_used'} = percentage(
+ (
+ $mystat{'Innodb_buffer_pool_pages_total'} -
+ $mystat{'Innodb_buffer_pool_pages_free'}
+ ),
+ $mystat{'Innodb_buffer_pool_pages_total'}
+ ) if defined $mystat{'Innodb_buffer_pool_pages_total'};
+
+ # Binlog Cache
+ if ( $myvar{'log_bin'} ne 'OFF' ) {
+ $mycalc{'pct_binlog_cache'} = percentage(
+ $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'},
+ $mystat{'Binlog_cache_use'} );
+ }
+}
+
+sub mysql_stats {
+ subheaderprint "Performance Metrics";
+
+ # Show uptime, queries per second, connections, traffic stats
+ my $qps;
+ if ( $mystat{'Uptime'} > 0 ) {
+ $qps = sprintf( "%.3f", $mystat{'Questions'} / $mystat{'Uptime'} );
+ }
+ push( @generalrec,
+ "MySQL started within last 24 hours - recommendations may be inaccurate"
+ ) if ( $mystat{'Uptime'} < 86400 );
+ infoprint "Up for: "
+ . pretty_uptime( $mystat{'Uptime'} ) . " ("
+ . hr_num( $mystat{'Questions'} ) . " q ["
+ . hr_num($qps)
+ . " qps], "
+ . hr_num( $mystat{'Connections'} )
+ . " conn," . " TX: "
+ . hr_bytes_rnd( $mystat{'Bytes_sent'} )
+ . ", RX: "
+ . hr_bytes_rnd( $mystat{'Bytes_received'} ) . ")";
+ infoprint "Reads / Writes: "
+ . $mycalc{'pct_reads'} . "% / "
+ . $mycalc{'pct_writes'} . "%";
+
+ # Binlog Cache
+ if ( $myvar{'log_bin'} eq 'OFF' ) {
+ infoprint "Binary logging is disabled";
+ }
+ else {
+ infoprint "Binary logging is enabled (GTID MODE: "
+ . ( defined( $myvar{'gtid_mode'} ) ? $myvar{'gtid_mode'} : "OFF" )
+ . ")";
+ }
+
+ # Memory usage
+ infoprint "Physical Memory : " . hr_bytes($physical_memory);
+ infoprint "Max MySQL memory : " . hr_bytes( $mycalc{'max_peak_memory'} );
+ infoprint "Other process memory: " . hr_bytes( get_other_process_memory() );
+
+ #print hr_bytes( $mycalc{'server_buffers'} );
+
+ infoprint "Total buffers: "
+ . hr_bytes( $mycalc{'server_buffers'} )
+ . " global + "
+ . hr_bytes( $mycalc{'per_thread_buffers'} )
+ . " per thread ($myvar{'max_connections'} max threads)";
+ infoprint "P_S Max memory usage: " . hr_bytes_rnd( get_pf_memory() );
+ $result{'P_S'}{'memory'} = get_other_process_memory();
+ $result{'P_S'}{'pretty_memory'} =
+ hr_bytes_rnd( get_other_process_memory() );
+ infoprint "Galera GCache Max memory usage: "
+ . hr_bytes_rnd( get_gcache_memory() );
+ $result{'Galera'}{'GCache'}{'memory'} = get_gcache_memory();
+ $result{'Galera'}{'GCache'}{'pretty_memory'} =
+ hr_bytes_rnd( get_gcache_memory() );
+
+ if ( $opt{buffers} ne 0 ) {
+ infoprint "Global Buffers";
+ infoprint " +-- Key Buffer: "
+ . hr_bytes( $myvar{'key_buffer_size'} ) . "";
+ infoprint " +-- Max Tmp Table: "
+ . hr_bytes( $mycalc{'max_tmp_table_size'} ) . "";
+
+ if ( defined $myvar{'query_cache_type'} ) {
+ infoprint "Query Cache Buffers";
+ infoprint " +-- Query Cache: "
+ . $myvar{'query_cache_type'} . " - "
+ . (
+ $myvar{'query_cache_type'} eq 0 |
+ $myvar{'query_cache_type'} eq 'OFF' ? "DISABLED"
+ : (
+ $myvar{'query_cache_type'} eq 1 ? "ALL REQUESTS"
+ : "ON DEMAND"
+ )
+ ) . "";
+ infoprint " +-- Query Cache Size: "
+ . hr_bytes( $myvar{'query_cache_size'} ) . "";
+ }
+
+ infoprint "Per Thread Buffers";
+ infoprint " +-- Read Buffer: "
+ . hr_bytes( $myvar{'read_buffer_size'} ) . "";
+ infoprint " +-- Read RND Buffer: "
+ . hr_bytes( $myvar{'read_rnd_buffer_size'} ) . "";
+ infoprint " +-- Sort Buffer: "
+ . hr_bytes( $myvar{'sort_buffer_size'} ) . "";
+ infoprint " +-- Thread stack: "
+ . hr_bytes( $myvar{'thread_stack'} ) . "";
+ infoprint " +-- Join Buffer: "
+ . hr_bytes( $myvar{'join_buffer_size'} ) . "";
+ if ( $myvar{'log_bin'} ne 'OFF' ) {
+ infoprint "Binlog Cache Buffers";
+ infoprint " +-- Binlog Cache: "
+ . hr_bytes( $myvar{'binlog_cache_size'} ) . "";
+ }
+ }
+
+ if ( $arch
+ && $arch == 32
+ && $mycalc{'max_used_memory'} > 2 * 1024 * 1024 * 1024 )
+ {
+ badprint
+ "Allocating > 2GB RAM on 32-bit systems can cause system instability";
+ badprint "Maximum reached memory usage: "
+ . hr_bytes( $mycalc{'max_used_memory'} )
+ . " ($mycalc{'pct_max_used_memory'}% of installed RAM)";
+ }
+ elsif ( $mycalc{'pct_max_used_memory'} > 85 ) {
+ badprint "Maximum reached memory usage: "
+ . hr_bytes( $mycalc{'max_used_memory'} )
+ . " ($mycalc{'pct_max_used_memory'}% of installed RAM)";
+ }
+ else {
+ goodprint "Maximum reached memory usage: "
+ . hr_bytes( $mycalc{'max_used_memory'} )
+ . " ($mycalc{'pct_max_used_memory'}% of installed RAM)";
+ }
+
+ if ( $mycalc{'pct_max_physical_memory'} > 85 ) {
+ badprint "Maximum possible memory usage: "
+ . hr_bytes( $mycalc{'max_peak_memory'} )
+ . " ($mycalc{'pct_max_physical_memory'}% of installed RAM)";
+ push( @generalrec,
+ "Reduce your overall MySQL memory footprint for system stability" );
+ }
+ else {
+ goodprint "Maximum possible memory usage: "
+ . hr_bytes( $mycalc{'max_peak_memory'} )
+ . " ($mycalc{'pct_max_physical_memory'}% of installed RAM)";
+ }
+
+ if ( $physical_memory <
+ ( $mycalc{'max_peak_memory'} + get_other_process_memory() ) )
+ {
+ badprint
+ "Overall possible memory usage with other process exceeded memory";
+ push( @generalrec,
+ "Dedicate this server to your database for highest performance." );
+ }
+ else {
+ goodprint
+"Overall possible memory usage with other process is compatible with memory available";
+ }
+
+ # Slow queries
+ if ( $mycalc{'pct_slow_queries'} > 5 ) {
+ badprint "Slow queries: $mycalc{'pct_slow_queries'}% ("
+ . hr_num( $mystat{'Slow_queries'} ) . "/"
+ . hr_num( $mystat{'Questions'} ) . ")";
+ }
+ else {
+ goodprint "Slow queries: $mycalc{'pct_slow_queries'}% ("
+ . hr_num( $mystat{'Slow_queries'} ) . "/"
+ . hr_num( $mystat{'Questions'} ) . ")";
+ }
+ if ( $myvar{'long_query_time'} > 10 ) {
+ push( @adjvars, "long_query_time (<= 10)" );
+ }
+ if ( defined( $myvar{'log_slow_queries'} ) ) {
+ if ( $myvar{'log_slow_queries'} eq "OFF" ) {
+ push( @generalrec,
+ "Enable the slow query log to troubleshoot bad queries" );
+ }
+ }
+
+ # Connections
+ if ( $mycalc{'pct_connections_used'} > 85 ) {
+ badprint
+"Highest connection usage: $mycalc{'pct_connections_used'}% ($mystat{'Max_used_connections'}/$myvar{'max_connections'})";
+ push( @adjvars,
+ "max_connections (> " . $myvar{'max_connections'} . ")" );
+ push( @adjvars,
+ "wait_timeout (< " . $myvar{'wait_timeout'} . ")",
+ "interactive_timeout (< " . $myvar{'interactive_timeout'} . ")" );
+ push( @generalrec,
+"Reduce or eliminate persistent connections to reduce connection usage"
+ );
+ }
+ else {
+ goodprint
+"Highest usage of available connections: $mycalc{'pct_connections_used'}% ($mystat{'Max_used_connections'}/$myvar{'max_connections'})";
+ }
+
+ # Aborted Connections
+ if ( $mycalc{'pct_connections_aborted'} > 3 ) {
+ badprint
+"Aborted connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})";
+ push( @generalrec,
+ "Reduce or eliminate unclosed connections and network issues" );
+ }
+ else {
+ goodprint
+"Aborted connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})";
+ }
+
+ # name resolution
+ if ( not defined( $result{'Variables'}{'skip_name_resolve'} ) ) {
+ infoprint
+"Skipped name resolution test due to missing skip_name_resolve in system variables.";
+ }
+ elsif ( $result{'Variables'}{'skip_name_resolve'} eq 'OFF' ) {
+ badprint
+"name resolution is active : a reverse name resolution is made for each new connection and can reduce performance";
+ push( @generalrec,
+"Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1"
+ );
+ }
+
+ # Query cache
+ if ( !mysql_version_ge(4) ) {
+
+ # MySQL versions < 4.01 don't support query caching
+ push( @generalrec,
+ "Upgrade MySQL to version 4+ to utilize query caching" );
+ }
+ elsif ( mysql_version_ge( 5, 5 ) and !mysql_version_ge( 10, 1 ) and $myvar{'query_cache_type'} eq "OFF" ) {
+ goodprint
+ "Query cache is disabled by default due to mutex contention on multiprocessor machines.";
+ }
+ elsif ( $myvar{'query_cache_size'} < 1 ) {
+ badprint "Query cache is disabled";
+ push( @adjvars, "query_cache_size (>= 8M)" );
+ }
+ elsif ( $myvar{'query_cache_type'} eq "OFF" ) {
+ badprint "Query cache is disabled";
+ push( @adjvars, "query_cache_type (=1)" );
+ }
+ elsif ( $mystat{'Com_select'} == 0 ) {
+ badprint
+ "Query cache cannot be analyzed - no SELECT statements executed";
+ }
+ else {
+ badprint
+ "Query cache may be disabled by default due to mutex contention.";
+ push( @adjvars, "query_cache_type (=0)" );
+ if ( $mycalc{'query_cache_efficiency'} < 20 ) {
+ badprint
+ "Query cache efficiency: $mycalc{'query_cache_efficiency'}% ("
+ . hr_num( $mystat{'Qcache_hits'} )
+ . " cached / "
+ . hr_num( $mystat{'Qcache_hits'} + $mystat{'Com_select'} )
+ . " selects)";
+ push( @adjvars,
+ "query_cache_limit (> "
+ . hr_bytes_rnd( $myvar{'query_cache_limit'} )
+ . ", or use smaller result sets)" );
+ }
+ else {
+ goodprint
+ "Query cache efficiency: $mycalc{'query_cache_efficiency'}% ("
+ . hr_num( $mystat{'Qcache_hits'} )
+ . " cached / "
+ . hr_num( $mystat{'Qcache_hits'} + $mystat{'Com_select'} )
+ . " selects)";
+ }
+ if ( $mycalc{'query_cache_prunes_per_day'} > 98 ) {
+ badprint
+"Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}";
+ if ( $myvar{'query_cache_size'} >= 128 * 1024 * 1024 ) {
+ push( @generalrec,
+"Increasing the query_cache size over 128M may reduce performance"
+ );
+ push( @adjvars,
+ "query_cache_size (> "
+ . hr_bytes_rnd( $myvar{'query_cache_size'} )
+ . ") [see warning above]" );
+ }
+ else {
+ push( @adjvars,
+ "query_cache_size (> "
+ . hr_bytes_rnd( $myvar{'query_cache_size'} )
+ . ")" );
+ }
+ }
+ else {
+ goodprint
+"Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}";
+ }
+ }
+
+ # Sorting
+ if ( $mycalc{'total_sorts'} == 0 ) {
+ goodprint "No Sort requiring temporary tables";
+ }
+ elsif ( $mycalc{'pct_temp_sort_table'} > 10 ) {
+ badprint
+ "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% ("
+ . hr_num( $mystat{'Sort_merge_passes'} )
+ . " temp sorts / "
+ . hr_num( $mycalc{'total_sorts'} )
+ . " sorts)";
+ push( @adjvars,
+ "sort_buffer_size (> "
+ . hr_bytes_rnd( $myvar{'sort_buffer_size'} )
+ . ")" );
+ push( @adjvars,
+ "read_rnd_buffer_size (> "
+ . hr_bytes_rnd( $myvar{'read_rnd_buffer_size'} )
+ . ")" );
+ }
+ else {
+ goodprint
+ "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% ("
+ . hr_num( $mystat{'Sort_merge_passes'} )
+ . " temp sorts / "
+ . hr_num( $mycalc{'total_sorts'} )
+ . " sorts)";
+ }
+
+ # Joins
+ if ( $mycalc{'joins_without_indexes_per_day'} > 250 ) {
+ badprint
+ "Joins performed without indexes: $mycalc{'joins_without_indexes'}";
+ push( @adjvars,
+ "join_buffer_size (> "
+ . hr_bytes( $myvar{'join_buffer_size'} )
+ . ", or always use indexes with joins)" );
+ push( @generalrec,
+ "Adjust your join queries to always utilize indexes" );
+ }
+ else {
+ goodprint "No joins without indexes";
+
+ # No joins have run without indexes
+ }
+
+ # Temporary tables
+ if ( $mystat{'Created_tmp_tables'} > 0 ) {
+ if ( $mycalc{'pct_temp_disk'} > 25
+ && $mycalc{'max_tmp_table_size'} < 256 * 1024 * 1024 )
+ {
+ badprint
+ "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% ("
+ . hr_num( $mystat{'Created_tmp_disk_tables'} )
+ . " on disk / "
+ . hr_num( $mystat{'Created_tmp_tables'} )
+ . " total)";
+ push( @adjvars,
+ "tmp_table_size (> "
+ . hr_bytes_rnd( $myvar{'tmp_table_size'} )
+ . ")" );
+ push( @adjvars,
+ "max_heap_table_size (> "
+ . hr_bytes_rnd( $myvar{'max_heap_table_size'} )
+ . ")" );
+ push( @generalrec,
+"When making adjustments, make tmp_table_size/max_heap_table_size equal"
+ );
+ push( @generalrec,
+ "Reduce your SELECT DISTINCT queries which have no LIMIT clause"
+ );
+ }
+ elsif ($mycalc{'pct_temp_disk'} > 25
+ && $mycalc{'max_tmp_table_size'} >= 256 * 1024 * 1024 )
+ {
+ badprint
+ "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% ("
+ . hr_num( $mystat{'Created_tmp_disk_tables'} )
+ . " on disk / "
+ . hr_num( $mystat{'Created_tmp_tables'} )
+ . " total)";
+ push( @generalrec,
+ "Temporary table size is already large - reduce result set size"
+ );
+ push( @generalrec,
+ "Reduce your SELECT DISTINCT queries without LIMIT clauses" );
+ }
+ else {
+ goodprint
+ "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% ("
+ . hr_num( $mystat{'Created_tmp_disk_tables'} )
+ . " on disk / "
+ . hr_num( $mystat{'Created_tmp_tables'} )
+ . " total)";
+ }
+ }
+ else {
+ goodprint "No tmp tables created on disk";
+ }
+
+ # Thread cache
+ if ( $myvar{'thread_cache_size'} eq 0 ) {
+ badprint "Thread cache is disabled";
+ push( @generalrec, "Set thread_cache_size to 4 as a starting value" );
+ push( @adjvars, "thread_cache_size (start at 4)" );
+ }
+ else {
+ if ( defined( $myvar{'thread_handling'} )
+ and $myvar{'thread_handling'} eq 'pools-of-threads' )
+ {
+ infoprint "Thread cache hit rate: not used with pool-of-threads";
+ }
+ else {
+ if ( $mycalc{'thread_cache_hit_rate'} <= 50 ) {
+ badprint
+ "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% ("
+ . hr_num( $mystat{'Threads_created'} )
+ . " created / "
+ . hr_num( $mystat{'Connections'} )
+ . " connections)";
+ push( @adjvars,
+ "thread_cache_size (> $myvar{'thread_cache_size'})" );
+ }
+ else {
+ goodprint
+ "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% ("
+ . hr_num( $mystat{'Threads_created'} )
+ . " created / "
+ . hr_num( $mystat{'Connections'} )
+ . " connections)";
+ }
+ }
+ }
+
+ # Table cache
+ my $table_cache_var = "";
+ if ( $mystat{'Open_tables'} > 0 ) {
+ if ( $mycalc{'table_cache_hit_rate'} < 20 ) {
+ badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+ . hr_num( $mystat{'Open_tables'} )
+ . " open / "
+ . hr_num( $mystat{'Opened_tables'} )
+ . " opened)";
+ if ( mysql_version_ge( 5, 1 ) ) {
+ $table_cache_var = "table_open_cache";
+ }
+ else {
+ $table_cache_var = "table_cache";
+ }
+
+ push( @adjvars,
+ $table_cache_var . " (> " . $myvar{$table_cache_var} . ")" );
+ push( @generalrec,
+ "Increase "
+ . $table_cache_var
+ . " gradually to avoid file descriptor limits" );
+ push( @generalrec,
+ "Read this before increasing "
+ . $table_cache_var
+ . " over 64: http://bit.ly/1mi7c4C" );
+ push( @generalrec,
+ "Beware that open_files_limit ("
+ . $myvar{'open_files_limit'}
+ . ") variable " );
+ push( @generalrec,
+ "should be greater than $table_cache_var ("
+ . $myvar{$table_cache_var}
+ . ")" );
+ }
+ else {
+ goodprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% ("
+ . hr_num( $mystat{'Open_tables'} )
+ . " open / "
+ . hr_num( $mystat{'Opened_tables'} )
+ . " opened)";
+ }
+ }
+
+ # Open files
+ if ( defined $mycalc{'pct_files_open'} ) {
+ if ( $mycalc{'pct_files_open'} > 85 ) {
+ badprint "Open file limit used: $mycalc{'pct_files_open'}% ("
+ . hr_num( $mystat{'Open_files'} ) . "/"
+ . hr_num( $myvar{'open_files_limit'} ) . ")";
+ push( @adjvars,
+ "open_files_limit (> " . $myvar{'open_files_limit'} . ")" );
+ }
+ else {
+ goodprint "Open file limit used: $mycalc{'pct_files_open'}% ("
+ . hr_num( $mystat{'Open_files'} ) . "/"
+ . hr_num( $myvar{'open_files_limit'} ) . ")";
+ }
+ }
+
+ # Table locks
+ if ( defined $mycalc{'pct_table_locks_immediate'} ) {
+ if ( $mycalc{'pct_table_locks_immediate'} < 95 ) {
+ badprint
+"Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}%";
+ push( @generalrec,
+ "Optimize queries and/or use InnoDB to reduce lock wait" );
+ }
+ else {
+ goodprint
+"Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}% ("
+ . hr_num( $mystat{'Table_locks_immediate'} )
+ . " immediate / "
+ . hr_num( $mystat{'Table_locks_waited'} +
+ $mystat{'Table_locks_immediate'} )
+ . " locks)";
+ }
+ }
+
+ # Binlog cache
+ if ( defined $mycalc{'pct_binlog_cache'} ) {
+ if ( $mycalc{'pct_binlog_cache'} < 90
+ && $mystat{'Binlog_cache_use'} > 0 )
+ {
+ badprint "Binlog cache memory access: "
+ . $mycalc{'pct_binlog_cache'} . "% ("
+ . (
+ $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'} )
+ . " Memory / "
+ . $mystat{'Binlog_cache_use'}
+ . " Total)";
+ push( @generalrec,
+ "Increase binlog_cache_size (Actual value: "
+ . $myvar{'binlog_cache_size'}
+ . ")" );
+ push( @adjvars,
+ "binlog_cache_size ("
+ . hr_bytes( $myvar{'binlog_cache_size'} + 16 * 1024 * 1024 )
+ . ")" );
+ }
+ else {
+ goodprint "Binlog cache memory access: "
+ . $mycalc{'pct_binlog_cache'} . "% ("
+ . (
+ $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'} )
+ . " Memory / "
+ . $mystat{'Binlog_cache_use'}
+ . " Total)";
+ debugprint "Not enough data to validate binlog cache size\n"
+ if $mystat{'Binlog_cache_use'} < 10;
+ }
+ }
+
+ # Performance options
+ if ( !mysql_version_ge( 5, 1 ) ) {
+ push( @generalrec, "Upgrade to MySQL 5.5+ to use asynchronous write" );
+ }
+ elsif ( $myvar{'concurrent_insert'} eq "OFF" ) {
+ push( @generalrec, "Enable concurrent_insert by setting it to 'ON'" );
+ }
+ elsif ( $myvar{'concurrent_insert'} eq 0 ) {
+ push( @generalrec, "Enable concurrent_insert by setting it to 1" );
+ }
+}
+
+# Recommendations for MyISAM
+sub mysql_myisam {
+ subheaderprint "MyISAM Metrics";
+
+ # Key buffer usage
+ if ( defined( $mycalc{'pct_key_buffer_used'} ) ) {
+ if ( $mycalc{'pct_key_buffer_used'} < 90 ) {
+ badprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
+ . hr_num( $myvar{'key_buffer_size'} *
+ $mycalc{'pct_key_buffer_used'} /
+ 100 )
+ . " used / "
+ . hr_num( $myvar{'key_buffer_size'} )
+ . " cache)";
+
+#push(@adjvars,"key_buffer_size (\~ ".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100).")");
+ }
+ else {
+ goodprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
+ . hr_num( $myvar{'key_buffer_size'} *
+ $mycalc{'pct_key_buffer_used'} /
+ 100 )
+ . " used / "
+ . hr_num( $myvar{'key_buffer_size'} )
+ . " cache)";
+ }
+ }
+ else {
+ # No queries have run that would use keys
+ debugprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
+ . hr_num(
+ $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100 )
+ . " used / "
+ . hr_num( $myvar{'key_buffer_size'} )
+ . " cache)";
+ }
+
+ # Key buffer
+ if ( !defined( $mycalc{'total_myisam_indexes'} ) and $doremote == 1 ) {
+ push( @generalrec,
+ "Unable to calculate MyISAM indexes on remote MySQL server < 5.0.0"
+ );
+ }
+ elsif ( $mycalc{'total_myisam_indexes'} =~ /^fail$/ ) {
+ badprint
+ "Cannot calculate MyISAM index size - re-run script as root user";
+ }
+ elsif ( $mycalc{'total_myisam_indexes'} == "0" ) {
+ badprint
+ "None of your MyISAM tables are indexed - add indexes immediately";
+ }
+ else {
+ if ( $myvar{'key_buffer_size'} < $mycalc{'total_myisam_indexes'}
+ && $mycalc{'pct_keys_from_mem'} < 95 )
+ {
+ badprint "Key buffer size / total MyISAM indexes: "
+ . hr_bytes( $myvar{'key_buffer_size'} ) . "/"
+ . hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
+ push( @adjvars,
+ "key_buffer_size (> "
+ . hr_bytes( $mycalc{'total_myisam_indexes'} )
+ . ")" );
+ }
+ else {
+ goodprint "Key buffer size / total MyISAM indexes: "
+ . hr_bytes( $myvar{'key_buffer_size'} ) . "/"
+ . hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
+ }
+ if ( $mystat{'Key_read_requests'} > 0 ) {
+ if ( $mycalc{'pct_keys_from_mem'} < 95 ) {
+ badprint
+ "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% ("
+ . hr_num( $mystat{'Key_read_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Key_reads'} )
+ . " reads)";
+ }
+ else {
+ goodprint
+ "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% ("
+ . hr_num( $mystat{'Key_read_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Key_reads'} )
+ . " reads)";
+ }
+ }
+ else {
+ # No queries have run that would use keys
+ debugprint "Key buffer size / total MyISAM indexes: "
+ . hr_bytes( $myvar{'key_buffer_size'} ) . "/"
+ . hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
+ }
+ if ( $mystat{'Key_write_requests'} > 0 ) {
+ if ( $mycalc{'pct_wkeys_from_mem'} < 95 ) {
+ badprint
+ "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% ("
+ . hr_num( $mystat{'Key_write_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Key_writes'} )
+ . " writes)";
+ }
+ else {
+ goodprint
+ "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% ("
+ . hr_num( $mystat{'Key_write_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Key_writes'} )
+ . " writes)";
+ }
+ }
+ else {
+ # No queries have run that would use keys
+ debugprint
+ "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% ("
+ . hr_num( $mystat{'Key_write_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Key_writes'} )
+ . " writes)";
+ }
+ }
+}
+
+# Recommendations for ThreadPool
+sub mariadb_threadpool {
+ subheaderprint "ThreadPool Metrics";
+
+ # AriaDB
+ unless ( defined $myvar{'have_threadpool'}
+ && $myvar{'have_threadpool'} eq "YES" )
+ {
+ infoprint "ThreadPool stat is disabled.";
+ return;
+ }
+ infoprint "ThreadPool stat is enabled.";
+ infoprint "Thread Pool Size: " . $myvar{'thread_pool_size'} . " thread(s).";
+
+ if ( $myvar{'version'} =~ /mariadb|percona/i ) {
+ infoprint "Using default value is good enough for your version ("
+ . $myvar{'version'} . ")";
+ return;
+ }
+
+ if ( $myvar{'have_innodb'} eq 'YES' ) {
+ if ( $myvar{'thread_pool_size'} < 16
+ or $myvar{'thread_pool_size'} > 36 )
+ {
+ badprint
+"thread_pool_size between 16 and 36 when using InnoDB storage engine.";
+ push( @generalrec,
+ "Thread pool size for InnoDB usage ("
+ . $myvar{'thread_pool_size'}
+ . ")" );
+ push( @adjvars,
+ "thread_pool_size between 16 and 36 for InnoDB usage" );
+ }
+ else {
+ goodprint
+"thread_pool_size between 16 and 36 when using InnoDB storage engine.";
+ }
+ return;
+ }
+ if ( $myvar{'have_isam'} eq 'YES' ) {
+ if ( $myvar{'thread_pool_size'} < 4 or $myvar{'thread_pool_size'} > 8 )
+ {
+ badprint
+"thread_pool_size between 4 and 8 when using MyIsam storage engine.";
+ push( @generalrec,
+ "Thread pool size for MyIsam usage ("
+ . $myvar{'thread_pool_size'}
+ . ")" );
+ push( @adjvars,
+ "thread_pool_size between 4 and 8 for MyIsam usage" );
+ }
+ else {
+ goodprint
+"thread_pool_size between 4 and 8 when using MyISAM storage engine.";
+ }
+ }
+}
+
+sub get_pf_memory {
+
+ # Performance Schema
+ return 0 unless defined $myvar{'performance_schema'};
+ return 0 if $myvar{'performance_schema'} eq 'OFF';
+
+ my @infoPFSMemory = grep /performance_schema.memory/,
+ select_array("SHOW ENGINE PERFORMANCE_SCHEMA STATUS");
+ return 0 if scalar(@infoPFSMemory) == 0;
+ $infoPFSMemory[0] =~ s/.*\s+(\d+)$/$1/g;
+ return $infoPFSMemory[0];
+}
+
+# Recommendations for Performance Schema
+sub mysqsl_pfs {
+ subheaderprint "Performance schema";
+
+ # Performance Schema
+ unless ( defined( $myvar{'performance_schema'} )
+ and $myvar{'performance_schema'} eq 'ON' )
+ {
+ infoprint "Performance schema is disabled.";
+ return;
+ }
+ infoprint "Performance schema is enabled.";
+ infoprint "Memory used by P_S: " . hr_bytes( get_pf_memory() );
+
+ unless ( grep /^sys$/, select_array("SHOW DATABASES") ) {
+ infoprint "Sys schema isn't installed.";
+ return;
+ }
+
+ infoprint "Sys schema is installed.";
+ return if ( $opt{pfstat} == 0 );
+
+ infoprint "Sys schema Version: "
+ . select_one("select sys_version from sys.version");
+
+ # Top user per connection
+ subheaderprint "Performance schema: Top 5 user per connection";
+ my $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, total_connections from sys.user_summary order by total_connections desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery conn(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per statement
+ subheaderprint "Performance schema: Top 5 user per statement";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, statements from sys.user_summary order by statements desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery stmt(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per statement latency
+ subheaderprint "Performance schema: Top 5 user per statement latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, statement_avg_latency from sys.user_summary order by statement_avg_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per lock latency
+ subheaderprint "Performance schema: Top 5 user per lock latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, lock_latency from sys.user_summary_by_statement_latency order by lock_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per full scans
+ subheaderprint "Performance schema: Top 5 user per nb full scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, full_scans from sys.user_summary_by_statement_latency order by full_scans desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per row_sent
+ subheaderprint "Performance schema: Top 5 user per rows sent";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, rows_sent from sys.user_summary_by_statement_latency order by rows_sent desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per row modified
+ subheaderprint "Performance schema: Top 5 user per rows modified";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, rows_affected from sys.user_summary_by_statement_latency order by rows_affected desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per io
+ subheaderprint "Performance schema: Top 5 user per io";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, file_ios from sys.user_summary order by file_ios desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top user per io latency
+ subheaderprint "Performance schema: Top 5 user per io latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select user, file_io_latency from sys.user_summary order by file_io_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per connection
+ subheaderprint "Performance schema: Top 5 host per connection";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, total_connections from sys.host_summary order by total_connections desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery conn(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per statement
+ subheaderprint "Performance schema: Top 5 host per statement";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, statements from sys.host_summary order by statements desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery stmt(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per statement latency
+ subheaderprint "Performance schema: Top 5 host per statement latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, statement_avg_latency from sys.host_summary order by statement_avg_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per lock latency
+ subheaderprint "Performance schema: Top 5 host per lock latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, lock_latency from sys.host_summary_by_statement_latency order by lock_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per full scans
+ subheaderprint "Performance schema: Top 5 host per nb full scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, full_scans from sys.host_summary_by_statement_latency order by full_scans desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per rows sent
+ subheaderprint "Performance schema: Top 5 host per rows sent";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, rows_sent from sys.host_summary_by_statement_latency order by rows_sent desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per rows modified
+ subheaderprint "Performance schema: Top 5 host per rows modified";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, rows_affected from sys.host_summary_by_statement_latency order by rows_affected desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per io
+ subheaderprint "Performance schema: Top 5 host per io";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, file_ios from sys.host_summary order by file_ios desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top 5 host per io latency
+ subheaderprint "Performance schema: Top 5 host per io latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, file_io_latency from sys.host_summary order by file_io_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top IO type order by total io
+ subheaderprint "Performance schema: Top IO type order by total io";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,14), SUM(total)AS total from sys.host_summary_by_file_io_type GROUP BY substring(event_name,14) ORDER BY total DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery i/o";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top IO type order by total latency
+ subheaderprint "Performance schema: Top IO type order by total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,14), format_time(ROUND(SUM(total_latency),1)) AS total_latency from sys.host_summary_by_file_io_type GROUP BY substring(event_name,14) ORDER BY total_latency DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top IO type order by max latency
+ subheaderprint "Performance schema: Top IO type order by max latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,14), MAX(max_latency) as max_latency from sys.host_summary_by_file_io_type GROUP BY substring(event_name,14) ORDER BY max_latency DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top Stages order by total io
+ subheaderprint "Performance schema: Top Stages order by total io";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,7), SUM(total)AS total from sys.host_summary_by_stages GROUP BY substring(event_name,7) ORDER BY total DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery i/o";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top Stages order by total latency
+ subheaderprint "Performance schema: Top Stages order by total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,7), format_time(ROUND(SUM(total_latency),1)) AS total_latency from sys.host_summary_by_stages GROUP BY substring(event_name,7) ORDER BY total_latency DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top Stages order by avg latency
+ subheaderprint "Performance schema: Top Stages order by avg latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select substring(event_name,7), MAX(avg_latency) as avg_latency from sys.host_summary_by_stages GROUP BY substring(event_name,7) ORDER BY avg_latency DESC;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top host per table scans
+ subheaderprint "Performance schema: Top 5 host per table scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select host, table_scans from sys.host_summary order by table_scans desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # InnoDB Buffer Pool by schema
+ subheaderprint "Performance schema: InnoDB Buffer Pool by schema";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select object_schema, allocated, data, pages from sys.innodb_buffer_stats_by_schema ORDER BY pages DESC'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery page(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # InnoDB Buffer Pool by table
+ subheaderprint "Performance schema: InnoDB Buffer Pool by table";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"select CONCAT(object_schema,CONCAT('.', object_name)), allocated,data, pages from sys.innodb_buffer_stats_by_table ORDER BY pages DESC"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery page(s)";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Process per allocated memory
+ subheaderprint "Performance schema: Process per allocated memory";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"select concat(user,concat('/', IFNULL(Command,'NONE'))) AS PROC, current_memory from sys.processlist ORDER BY current_memory DESC;"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # InnoDB Lock Waits
+ subheaderprint "Performance schema: InnoDB Lock Waits";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;select wait_age_secs, locked_table, locked_type, waiting_query from innodb_lock_waits order by wait_age_secs DESC;"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Threads IO Latency
+ subheaderprint "Performance schema: Thread IO Latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;select user, total_latency, max_latency from io_by_thread_by_latency order by total_latency;"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # High Cost SQL statements
+ subheaderprint "Performance schema: Top 5 Most latency statements";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select query, avg_latency from sys.statement_analysis order by avg_latency desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top 5% slower queries
+ subheaderprint "Performance schema: Top 5 slower queries";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select query, exec_count from sys.statements_with_runtimes_in_95th_percentile order by exec_count desc LIMIT 5'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery s";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top 10 nb statement type
+ subheaderprint "Performance schema: Top 10 nb statement type";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(total) as total from host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top statement by total latency
+ subheaderprint "Performance schema: Top statement by total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(total_latency) as total from sys.host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top statement by lock latency
+ subheaderprint "Performance schema: Top statement by lock latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(lock_latency) as total from sys.host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top statement by full scans
+ subheaderprint "Performance schema: Top statement by full scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(full_scans) as total from sys.host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top statement by rows sent
+ subheaderprint "Performance schema: Top statement by rows sent";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(rows_sent) as total from sys.host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Top statement by rows modified
+ subheaderprint "Performance schema: Top statement by rows modified";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select statement, sum(rows_affected) as total from sys.host_summary_by_statement_type group by statement order by total desc LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Use temporary tables
+ subheaderprint "Performance schema: Some queries using temp table";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+ 'use sys;select query from sys.statements_with_temp_tables LIMIT 20'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Unused Indexes
+ subheaderprint "Performance schema: Unused indexes";
+ $nbL = 1;
+ for my $lQuery ( select_array('select * from sys.schema_unused_indexes') ) {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Full table scans
+ subheaderprint "Performance schema: Tables with full table scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select * from sys.schema_tables_with_full_table_scans order by rows_full_scanned DESC'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Latest file IO by latency
+ subheaderprint "Performance schema: Latest FILE IO by latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select thread, file, latency, operation from latest_file_io ORDER BY latency LIMIT 10;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # FILE by IO read bytes
+ subheaderprint "Performance schema: FILE by IO read bytes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;(select file, total_read from io_global_by_file_by_bytes where total_read like '%MiB' order by total_read DESC) UNION (select file, total_read from io_global_by_file_by_bytes where total_read like '%KiB' order by total_read DESC LIMIT 15);"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # FILE by IO written bytes
+ subheaderprint "Performance schema: FILE by IO written bytes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;(select file, total_written from io_global_by_file_by_bytes where total_written like '%MiB' order by total_written DESC) UNION (select file, total_written from io_global_by_file_by_bytes where total_written like '%KiB' order by total_written DESC LIMIT 15);"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # file per IO total latency
+ subheaderprint "Performance schema: file per IO total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select file, total_latency from io_global_by_file_by_latency ORDER BY total_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # file per IO read latency
+ subheaderprint "Performance schema: file per IO read latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select file, read_latency from io_global_by_file_by_latency ORDER BY read_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # file per IO write latency
+ subheaderprint "Performance schema: file per IO write latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select file, write_latency from io_global_by_file_by_latency ORDER BY write_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Event Wait by read bytes
+ subheaderprint "Performance schema: Event Wait by read bytes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;(select event_name, total_read from io_global_by_wait_by_bytes where total_read like '%MiB' order by total_read DESC) UNION (select event_name, total_read from io_global_by_wait_by_bytes where total_read like '%KiB' order by total_read DESC LIMIT 15);"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Event Wait by write bytes
+ subheaderprint "Performance schema: Event Wait written bytes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+"use sys;(select event_name, total_written from io_global_by_wait_by_bytes where total_written like '%MiB' order by total_written DESC) UNION (select event_name, total_written from io_global_by_wait_by_bytes where total_written like '%KiB' order by total_written DESC LIMIT 15);"
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # event per wait total latency
+ subheaderprint "Performance schema: event per wait total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_name, total_latency from io_global_by_wait_by_latency ORDER BY total_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # event per wait read latency
+ subheaderprint "Performance schema: event per wait read latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_name, read_latency from io_global_by_wait_by_latency ORDER BY read_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # event per wait write latency
+ subheaderprint "Performance schema: event per wait write latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_name, write_latency from io_global_by_wait_by_latency ORDER BY write_latency DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ #schema_index_statistics
+ # TOP 15 most read index
+ subheaderprint "Performance schema: TOP 15 most read indexes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, rows_selected from schema_index_statistics ORDER BY ROWs_selected DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 most used index
+ subheaderprint "Performance schema: TOP 15 most modified indexes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, rows_inserted+rows_updated+rows_deleted AS changes from schema_index_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high read latency index
+ subheaderprint "Performance schema: TOP 15 high read latency index";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, select_latency from schema_index_statistics ORDER BY select_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high insert latency index
+ subheaderprint "Performance schema: TOP 15 most modified indexes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, insert_latency from schema_index_statistics ORDER BY insert_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high update latency index
+ subheaderprint "Performance schema: TOP 15 high update latency index";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, update_latency from schema_index_statistics ORDER BY update_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high delete latency index
+ subheaderprint "Performance schema: TOP 15 high delete latency index";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name,index_name, delete_latency from schema_index_statistics ORDER BY delete_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 most read tables
+ subheaderprint "Performance schema: TOP 15 most read tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, rows_fetched from schema_table_statistics ORDER BY ROWs_fetched DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 most used tables
+ subheaderprint "Performance schema: TOP 15 most modified tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, rows_inserted+rows_updated+rows_deleted AS changes from schema_table_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high read latency tables
+ subheaderprint "Performance schema: TOP 15 high read latency tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, fetch_latency from schema_table_statistics ORDER BY fetch_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high insert latency tables
+ subheaderprint "Performance schema: TOP 15 high insert latency tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, insert_latency from schema_table_statistics ORDER BY insert_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high update latency tables
+ subheaderprint "Performance schema: TOP 15 high update latency tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, update_latency from schema_table_statistics ORDER BY update_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # TOP 15 high delete latency tables
+ subheaderprint "Performance schema: TOP 15 high delete latency tables";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select table_schema, table_name, delete_latency from schema_table_statistics ORDER BY delete_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ # Redundant indexes
+ subheaderprint "Performance schema: Redundant indexes";
+ $nbL = 1;
+ for my $lQuery (
+ select_array('use sys;select * from schema_redundant_indexes;') )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Tables not using InnoDB buffer";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+' Select table_schema, table_name from sys.schema_table_statistics_with_buffer where innodb_buffer_allocated IS NULL;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Table not using InnoDB buffer";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+' Select table_schema, table_name from sys.schema_table_statistics_with_buffer where innodb_buffer_allocated IS NULL;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+ subheaderprint "Performance schema: Table not using InnoDB buffer";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+' Select table_schema, table_name from sys.schema_table_statistics_with_buffer where innodb_buffer_allocated IS NULL;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Top 15 Tables using InnoDB buffer";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select table_schema,table_name,innodb_buffer_allocated from sys.schema_table_statistics_with_buffer where innodb_buffer_allocated IS NOT NULL ORDER BY innodb_buffer_allocated DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Top 15 Tables with InnoDB buffer free";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select table_schema,table_name,innodb_buffer_free from sys.schema_table_statistics_with_buffer where innodb_buffer_allocated IS NOT NULL ORDER BY innodb_buffer_free DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Top 15 Most executed queries";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, exec_count from sys.statement_analysis order by exec_count DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: Latest SQL queries in errors or warnings";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select query, last_seen from sys.statements_with_errors_or_warnings ORDER BY last_seen LIMIT 100;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Top 20 queries with full table scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, exec_count from sys.statements_with_full_table_scans order BY exec_count DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Last 50 queries with full table scans";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, last_seen from sys.statements_with_full_table_scans order BY last_seen DESC LIMIT 50;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 reader queries (95% percentile)";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query , rows_sent from statements_with_runtimes_in_95th_percentile ORDER BY ROWs_sent DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 most row look queries (95% percentile)";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, rows_examined AS search from statements_with_runtimes_in_95th_percentile ORDER BY rows_examined DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 total latency queries (95% percentile)";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, total_latency AS search from statements_with_runtimes_in_95th_percentile ORDER BY total_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 max latency queries (95% percentile)";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, max_latency AS search from statements_with_runtimes_in_95th_percentile ORDER BY max_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 average latency queries (95% percentile)";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, avg_latency AS search from statements_with_runtimes_in_95th_percentile ORDER BY avg_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Top 20 queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, exec_count from sys.statements_with_sorting order BY exec_count DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Last 50 queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, last_seen from sys.statements_with_sorting order BY last_seen DESC LIMIT 50;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 row sorting queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query , rows_sorted from statements_with_sorting ORDER BY ROWs_sorted DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 total latency queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, total_latency AS search from statements_with_sorting ORDER BY total_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 merge queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, sort_merge_passes AS search from statements_with_sorting ORDER BY sort_merge_passes DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 average sort merges queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, avg_sort_merges AS search from statements_with_sorting ORDER BY avg_sort_merges DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 scans queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, sorts_using_scans AS search from statements_with_sorting ORDER BY sorts_using_scans DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 range queries with sort";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, sort_using_range AS search from statements_with_sorting ORDER BY sort_using_range DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+##################################################################################
+
+ #statements_with_temp_tables
+
+#mysql> desc statements_with_temp_tables;
+#+--------------------------+---------------------+------+-----+---------------------+-------+
+#| Field | Type | Null | Key | Default | Extra |
+#+--------------------------+---------------------+------+-----+---------------------+-------+
+#| query | longtext | YES | | NULL | |
+#| db | varchar(64) | YES | | NULL | |
+#| exec_count | bigint(20) unsigned | NO | | NULL | |
+#| total_latency | text | YES | | NULL | |
+#| memory_tmp_tables | bigint(20) unsigned | NO | | NULL | |
+#| disk_tmp_tables | bigint(20) unsigned | NO | | NULL | |
+#| avg_tmp_tables_per_query | decimal(21,0) | NO | | 0 | |
+#| tmp_tables_to_disk_pct | decimal(24,0) | NO | | 0 | |
+#| first_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
+#| last_seen | timestamp | NO | | 0000-00-00 00:00:00 | |
+#| digest | varchar(32) | YES | | NULL | |
+#+--------------------------+---------------------+------+-----+---------------------+-------+
+#11 rows in set (0,01 sec)#
+#
+ subheaderprint "Performance schema: Top 20 queries with temp table";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, exec_count from sys.statements_with_temp_tables order BY exec_count DESC LIMIT 20;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: Last 50 queries with temp table";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'select db, query, last_seen from sys.statements_with_temp_tables order BY last_seen DESC LIMIT 50;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint
+ "Performance schema: TOP 15 total latency queries with temp table";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, total_latency AS search from statements_with_temp_tables ORDER BY total_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 queries with temp table to disk";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select db, query, disk_tmp_tables from statements_with_temp_tables ORDER BY disk_tmp_tables DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+##################################################################################
+ #wait_classes_global_by_latency
+
+#ysql> select * from wait_classes_global_by_latency;
+#-----------------+-------+---------------+-------------+-------------+-------------+
+# event_class | total | total_latency | min_latency | avg_latency | max_latency |
+#-----------------+-------+---------------+-------------+-------------+-------------+
+# wait/io/file | 15381 | 1.23 s | 0 ps | 80.12 us | 230.64 ms |
+# wait/io/table | 59 | 7.57 ms | 5.45 us | 128.24 us | 3.95 ms |
+# wait/lock/table | 69 | 3.22 ms | 658.84 ns | 46.64 us | 1.10 ms |
+#-----------------+-------+---------------+-------------+-------------+-------------+
+# rows in set (0,00 sec)
+
+ subheaderprint "Performance schema: TOP 15 class events by number";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_class, total from wait_classes_global_by_latency ORDER BY total DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 30 events by number";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select events, total from waits_global_by_latency ORDER BY total DESC LIMIT 30;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 class events by total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_class, total_latency from wait_classes_global_by_latency ORDER BY total_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 30 events by total latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select events, total_latency from waits_global_by_latency ORDER BY total_latency DESC LIMIT 30;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 15 class events by max latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select event_class, max_latency from wait_classes_global_by_latency ORDER BY max_latency DESC LIMIT 15;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+ subheaderprint "Performance schema: TOP 30 events by max latency";
+ $nbL = 1;
+ for my $lQuery (
+ select_array(
+'use sys;select events, max_latency from waits_global_by_latency ORDER BY max_latency DESC LIMIT 30;'
+ )
+ )
+ {
+ infoprint " +-- $nbL: $lQuery";
+ $nbL++;
+ }
+ infoprint "No information found or indicators desactivated."
+ if ( $nbL == 1 );
+
+}
+
+# Recommendations for Ariadb
+sub mariadb_ariadb {
+ subheaderprint "AriaDB Metrics";
+
+ # AriaDB
+ unless ( defined $myvar{'have_aria'}
+ and $myvar{'have_aria'} eq "YES" )
+ {
+ infoprint "AriaDB is disabled.";
+ return;
+ }
+ infoprint "AriaDB is enabled.";
+
+ # Aria pagecache
+ if ( !defined( $mycalc{'total_aria_indexes'} ) and $doremote == 1 ) {
+ push( @generalrec,
+ "Unable to calculate Aria indexes on remote MySQL server < 5.0.0" );
+ }
+ elsif ( $mycalc{'total_aria_indexes'} =~ /^fail$/ ) {
+ badprint
+ "Cannot calculate Aria index size - re-run script as root user";
+ }
+ elsif ( $mycalc{'total_aria_indexes'} == "0" ) {
+ badprint
+ "None of your Aria tables are indexed - add indexes immediately";
+ }
+ else {
+ if (
+ $myvar{'aria_pagecache_buffer_size'} < $mycalc{'total_aria_indexes'}
+ && $mycalc{'pct_aria_keys_from_mem'} < 95 )
+ {
+ badprint "Aria pagecache size / total Aria indexes: "
+ . hr_bytes( $myvar{'aria_pagecache_buffer_size'} ) . "/"
+ . hr_bytes( $mycalc{'total_aria_indexes'} ) . "";
+ push( @adjvars,
+ "aria_pagecache_buffer_size (> "
+ . hr_bytes( $mycalc{'total_aria_indexes'} )
+ . ")" );
+ }
+ else {
+ goodprint "Aria pagecache size / total Aria indexes: "
+ . hr_bytes( $myvar{'aria_pagecache_buffer_size'} ) . "/"
+ . hr_bytes( $mycalc{'total_aria_indexes'} ) . "";
+ }
+ if ( $mystat{'Aria_pagecache_read_requests'} > 0 ) {
+ if ( $mycalc{'pct_aria_keys_from_mem'} < 95 ) {
+ badprint
+"Aria pagecache hit rate: $mycalc{'pct_aria_keys_from_mem'}% ("
+ . hr_num( $mystat{'Aria_pagecache_read_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Aria_pagecache_reads'} )
+ . " reads)";
+ }
+ else {
+ goodprint
+"Aria pagecache hit rate: $mycalc{'pct_aria_keys_from_mem'}% ("
+ . hr_num( $mystat{'Aria_pagecache_read_requests'} )
+ . " cached / "
+ . hr_num( $mystat{'Aria_pagecache_reads'} )
+ . " reads)";
+ }
+ }
+ else {
+
+ # No queries have run that would use keys
+ }
+ }
+}
+
+# Recommendations for TokuDB
+sub mariadb_tokudb {
+ subheaderprint "TokuDB Metrics";
+
+ # AriaDB
+ unless ( defined $myvar{'have_tokudb'}
+ && $myvar{'have_tokudb'} eq "YES" )
+ {
+ infoprint "TokuDB is disabled.";
+ return;
+ }
+ infoprint "TokuDB is enabled.";
+
+ # All is to done here
+}
+
+# Recommendations for XtraDB
+sub mariadb_xtradb {
+ subheaderprint "XtraDB Metrics";
+
+ # XtraDB
+ unless ( defined $myvar{'have_xtradb'}
+ && $myvar{'have_xtradb'} eq "YES" )
+ {
+ infoprint "XtraDB is disabled.";
+ return;
+ }
+ infoprint "XtraDB is enabled.";
+
+ # All is to done here
+}
+
+# Recommendations for RocksDB
+sub mariadb_rockdb {
+ subheaderprint "RocksDB Metrics";
+
+ # RocksDB
+ unless ( defined $myvar{'have_rocksdb'}
+ && $myvar{'have_rocksdb'} eq "YES" )
+ {
+ infoprint "RocksDB is disabled.";
+ return;
+ }
+ infoprint "RocksDB is enabled.";
+
+ # All is to done here
+}
+
+# Recommendations for Spider
+sub mariadb_spider {
+ subheaderprint "Spider Metrics";
+
+ # Spider
+ unless ( defined $myvar{'have_spider'}
+ && $myvar{'have_spider'} eq "YES" )
+ {
+ infoprint "Spider is disabled.";
+ return;
+ }
+ infoprint "Spider is enabled.";
+
+ # All is to done here
+}
+
+# Recommendations for Connect
+sub mariadb_connect {
+ subheaderprint "Connect Metrics";
+
+ # Connect
+ unless ( defined $myvar{'have_connect'}
+ && $myvar{'have_connect'} eq "YES" )
+ {
+ infoprint "Connect is disabled.";
+ return;
+ }
+ infoprint "TokuDB is enabled.";
+
+ # All is to done here
+}
+
+# Perl trim function to remove whitespace from the start and end of the string
+sub trim {
+ my $string = shift;
+ $string =~ s/^\s+//;
+ $string =~ s/\s+$//;
+ return $string;
+}
+
+sub get_wsrep_options {
+ return () unless defined $myvar{'wsrep_provider_options'};
+
+ my @galera_options = split /;/, $myvar{'wsrep_provider_options'};
+ @galera_options = remove_cr @galera_options;
+ @galera_options = remove_empty @galera_options;
+ debugprint Dumper( \@galera_options );
+ return @galera_options;
+}
+
+sub get_gcache_memory {
+ my $gCacheMem = get_wsrep_option('gcache.size');
+
+ return 0 unless defined $gCacheMem and $gCacheMem ne '';
+ return $gCacheMem;
+}
+
+sub get_wsrep_option {
+ my $key = shift;
+ return '' unless defined $myvar{'wsrep_provider_options'};
+ my @galera_options = get_wsrep_options;
+ return '' unless scalar(@galera_options) > 0;
+ my @memValues = grep /\s*$key =/, @galera_options;
+ my $memValue = $memValues[0];
+ $memValue =~ s/.*=\s*(.+)$/$1/g;
+ return $memValue;
+}
+
+# Recommendations for Galera
+sub mariadb_galera {
+ subheaderprint "Galera Metrics";
+
+ # Galera Cluster
+ unless ( defined $myvar{'have_galera'}
+ && $myvar{'have_galera'} eq "YES" )
+ {
+ infoprint "Galera is disabled.";
+ return;
+ }
+ infoprint "Galera is enabled.";
+ debugprint "Galera variables:";
+ foreach my $gvar ( keys %myvar ) {
+ next unless $gvar =~ /^wsrep.*/;
+ next if $gvar eq 'wsrep_provider_options';
+ debugprint "\t" . trim($gvar) . " = " . $myvar{$gvar};
+ $result{'Galera'}{'variables'}{$gvar} = $myvar{$gvar};
+ }
+
+ debugprint "Galera wsrep provider Options:";
+ my @galera_options = get_wsrep_options;
+ $result{'Galera'}{'wsrep options'} = get_wsrep_options();
+ foreach my $gparam (@galera_options) {
+ debugprint "\t" . trim($gparam);
+ }
+ debugprint "Galera status:";
+ foreach my $gstatus ( keys %mystat ) {
+ next unless $gstatus =~ /^wsrep.*/;
+ debugprint "\t" . trim($gstatus) . " = " . $mystat{$gstatus};
+ $result{'Galera'}{'status'}{$gstatus} = $myvar{$gstatus};
+ }
+ infoprint "GCache is using "
+ . hr_bytes_rnd( get_wsrep_option('gcache.mem_size') );
+ my @primaryKeysNbTables = select_array(
+ "Select CONCAT(c.table_schema,CONCAT('.', c.table_name))
+from information_schema.columns c
+join information_schema.tables t using (TABLE_SCHEMA, TABLE_NAME)
+where c.table_schema not in ('mysql', 'information_schema', 'performance_schema')
+ and t.table_type != 'VIEW'
+group by c.table_schema,c.table_name
+having sum(if(c.column_key in ('PRI','UNI'), 1,0)) = 0"
+ );
+
+ if ( scalar(@primaryKeysNbTables) > 0 ) {
+ badprint "Following table(s) don't have primary key:";
+ foreach my $badtable (@primaryKeysNbTables) {
+ badprint "\t$badtable";
+ push @{ $result{'Tables without PK'} }, $badtable;
+ }
+ }
+ else {
+ goodprint "All tables get a primary key";
+ }
+ my @nonInnoDBTables = select_array(
+"select CONCAT(table_schema,CONCAT('.', table_name)) from information_schema.tables where ENGINE <> 'InnoDB' and table_schema not in ('mysql', 'performance_schema', 'information_schema')"
+ );
+ if ( scalar(@nonInnoDBTables) > 0 ) {
+ badprint "Following table(s) are not InnoDB table:";
+ push @generalrec,
+ "Ensure that all table(s) are InnoDB tables for Galera replication";
+ foreach my $badtable (@nonInnoDBTables) {
+ badprint "\t$badtable";
+ }
+ }
+ else {
+ goodprint "All tables are InnoDB tables";
+ }
+ if ( $myvar{'binlog_format'} ne 'ROW' ) {
+ badprint "Binlog format should be in ROW mode.";
+ push @adjvars, "binlog_format = ROW";
+ }
+ else {
+ goodprint "Binlog format is in ROW mode.";
+ }
+ if ( $myvar{'innodb_flush_log_at_trx_commit'} != 0 ) {
+ badprint "InnoDB flush log at each commit should be disabled.";
+ push @adjvars, "innodb_flush_log_at_trx_commit = 0";
+ }
+ else {
+ goodprint "InnoDB flush log at each commit is disabled for Galera.";
+ }
+
+ infoprint "Read consistency mode :" . $myvar{'wsrep_causal_reads'};
+
+ if ( defined( $myvar{'wsrep_cluster_name'} )
+ and $myvar{'wsrep_on'} eq "ON" )
+ {
+ goodprint "Galera WsREP is enabled.";
+ if ( defined( $myvar{'wsrep_cluster_address'} )
+ and trim("$myvar{'wsrep_cluster_address'}") ne "" )
+ {
+ goodprint "Galera Cluster address is defined: "
+ . $myvar{'wsrep_cluster_address'};
+ my @NodesTmp = split /,/, $myvar{'wsrep_cluster_address'};
+ my $nbNodes = @NodesTmp;
+ infoprint "There are $nbNodes nodes in wsrep_cluster_address";
+ my $nbNodesSize = trim( $mystat{'wsrep_cluster_size'} );
+ if ( $nbNodesSize == 3 or $nbNodesSize == 5 ) {
+ goodprint "There are $nbNodesSize nodes in wsrep_cluster_size.";
+ }
+ else {
+ badprint
+"There are $nbNodesSize nodes in wsrep_cluster_size. Prefer 3 or 5 nodes architecture.";
+ }
+
+ # wsrep_cluster_address doesn't include garbd nodes
+ if ( $nbNodes > $nbNodesSize ) {
+ badprint
+"All cluster nodes are not detected. wsrep_cluster_size less then node count in wsrep_cluster_address";
+ }
+ else {
+ goodprint "All cluster nodes detected.";
+ }
+ }
+ else {
+ badprint "Galera Cluster address is undefined";
+ push @adjvars,
+ "set up wsrep_cluster_address variable for Galera replication";
+ }
+ if ( defined( $myvar{'wsrep_cluster_name'} )
+ and trim( $myvar{'wsrep_cluster_name'} ) ne "" )
+ {
+ goodprint "Galera Cluster name is defined: "
+ . $myvar{'wsrep_cluster_name'};
+ }
+ else {
+ badprint "Galera Cluster name is undefined";
+ push @adjvars,
+ "set up wsrep_cluster_name variable for Galera replication";
+ }
+ if ( defined( $myvar{'wsrep_node_name'} )
+ and trim( $myvar{'wsrep_node_name'} ) ne "" )
+ {
+ goodprint "Galera Node name is defined: "
+ . $myvar{'wsrep_node_name'};
+ }
+ else {
+ badprint "Galera node name is undefined";
+ push @adjvars,
+ "set up wsrep_node_name variable for Galera replication";
+ }
+ if ( trim( $myvar{'wsrep_notify_cmd'} ) ne "" ) {
+ goodprint "Galera Notify command is defined.";
+ }
+ else {
+ badprint "Galera Notify command is not defined.";
+ push( @adjvars, "set up parameter wsrep_notify_cmd to be notify" );
+ }
+ if ( trim( $myvar{'wsrep_sst_method'} ) !~ "^xtrabackup.*" ) {
+ badprint "Galera SST method is not xtrabackup based.";
+ push( @adjvars,
+"set up parameter wsrep_sst_method to xtrabackup based parameter"
+ );
+ }
+ else {
+ goodprint "SST Method is based on xtrabackup.";
+ }
+ if (
+ (
+ defined( $myvar{'wsrep_OSU_method'} )
+ && trim( $myvar{'wsrep_OSU_method'} ) eq "TOI"
+ )
+ || ( defined( $myvar{'wsrep_osu_method'} )
+ && trim( $myvar{'wsrep_osu_method'} ) eq "TOI" )
+ )
+ {
+ goodprint "TOI is default mode for upgrade.";
+ }
+ else {
+ badprint "Schema upgrade are not replicated automatically";
+ push( @adjvars, "set up parameter wsrep_OSU_method to TOI" );
+ }
+ infoprint "Max WsRep message : "
+ . hr_bytes( $myvar{'wsrep_max_ws_size'} );
+ }
+ else {
+ badprint "Galera WsREP is disabled";
+ }
+
+ if ( defined( $mystat{'wsrep_connected'} )
+ and $mystat{'wsrep_connected'} eq "ON" )
+ {
+ goodprint "Node is connected";
+ }
+ else {
+ badprint "Node is disconnected";
+ }
+ if ( defined( $mystat{'wsrep_ready'} ) and $mystat{'wsrep_ready'} eq "ON" )
+ {
+ goodprint "Node is ready";
+ }
+ else {
+ badprint "Node is not ready";
+ }
+ infoprint "Cluster status :" . $mystat{'wsrep_cluster_status'};
+ if ( defined( $mystat{'wsrep_cluster_status'} )
+ and $mystat{'wsrep_cluster_status'} eq "Primary" )
+ {
+ goodprint "Galera cluster is consistent and ready for operations";
+ }
+ else {
+ badprint "Cluster is not consistent and ready";
+ }
+ if ( $mystat{'wsrep_local_state_uuid'} eq
+ $mystat{'wsrep_cluster_state_uuid'} )
+ {
+ goodprint "Node and whole cluster at the same level: "
+ . $mystat{'wsrep_cluster_state_uuid'};
+ }
+ else {
+ badprint "Node and whole cluster not the same level";
+ infoprint "Node state uuid: " . $mystat{'wsrep_local_state_uuid'};
+ infoprint "Cluster state uuid: " . $mystat{'wsrep_cluster_state_uuid'};
+ }
+ if ( $mystat{'wsrep_local_state_comment'} eq 'Synced' ) {
+ goodprint "Node is synced with whole cluster.";
+ }
+ else {
+ badprint "Node is not synced";
+ infoprint "Node State : " . $mystat{'wsrep_local_state_comment'};
+ }
+ if ( $mystat{'wsrep_local_cert_failures'} == 0 ) {
+ goodprint "There is no certification failures detected.";
+ }
+ else {
+ badprint "There is "
+ . $mystat{'wsrep_local_cert_failures'}
+ . " certification failure(s)detected.";
+ }
+
+ for my $key ( keys %mystat ) {
+ if ( $key =~ /wsrep_|galera/i ) {
+ debugprint "WSREP: $key = $mystat{$key}";
+ }
+ }
+ debugprint Dumper get_wsrep_options();
+}
+
+# Recommendations for InnoDB
+sub mysql_innodb {
+ subheaderprint "InnoDB Metrics";
+
+ # InnoDB
+ unless ( defined $myvar{'have_innodb'}
+ && $myvar{'have_innodb'} eq "YES"
+ && defined $enginestats{'InnoDB'} )
+ {
+ infoprint "InnoDB is disabled.";
+ if ( mysql_version_ge( 5, 5 ) ) {
+ badprint
+"InnoDB Storage engine is disabled. InnoDB is the default storage engine";
+ }
+ return;
+ }
+ infoprint "InnoDB is enabled.";
+
+ if ( $opt{buffers} ne 0 ) {
+ infoprint "InnoDB Buffers";
+ if ( defined $myvar{'innodb_buffer_pool_size'} ) {
+ infoprint " +-- InnoDB Buffer Pool: "
+ . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . "";
+ }
+ if ( defined $myvar{'innodb_buffer_pool_instances'} ) {
+ infoprint " +-- InnoDB Buffer Pool Instances: "
+ . $myvar{'innodb_buffer_pool_instances'} . "";
+ }
+
+ if ( defined $myvar{'innodb_buffer_pool_chunk_size'} ) {
+ infoprint " +-- InnoDB Buffer Pool Chunk Size: "
+ . hr_bytes( $myvar{'innodb_buffer_pool_chunk_size'} ) . "";
+ }
+ if ( defined $myvar{'innodb_additional_mem_pool_size'} ) {
+ infoprint " +-- InnoDB Additional Mem Pool: "
+ . hr_bytes( $myvar{'innodb_additional_mem_pool_size'} ) . "";
+ }
+ if ( defined $myvar{'innodb_log_file_size'} ) {
+ infoprint " +-- InnoDB Log File Size: "
+ . hr_bytes( $myvar{'innodb_log_file_size'} ) . "("
+ . $mycalc{'innodb_log_size_pct'}
+ . " % of buffer pool)";
+ }
+ if ( defined $myvar{'innodb_log_files_in_group'} ) {
+ infoprint " +-- InnoDB Log File In Group: "
+ . $myvar{'innodb_log_files_in_group'};
+ }
+ if ( defined $myvar{'innodb_log_files_in_group'} ) {
+ infoprint " +-- InnoDB Total Log File Size: "
+ . hr_bytes( $myvar{'innodb_log_files_in_group'}*$myvar{'innodb_log_file_size'});
+ }
+ if ( defined $myvar{'innodb_log_buffer_size'} ) {
+ infoprint " +-- InnoDB Log Buffer: "
+ . hr_bytes( $myvar{'innodb_log_buffer_size'} );
+ }
+ if ( defined $mystat{'Innodb_buffer_pool_pages_free'} ) {
+ infoprint " +-- InnoDB Log Buffer Free: "
+ . hr_bytes( $mystat{'Innodb_buffer_pool_pages_free'} ) . "";
+ }
+ if ( defined $mystat{'Innodb_buffer_pool_pages_total'} ) {
+ infoprint " +-- InnoDB Log Buffer Used: "
+ . hr_bytes( $mystat{'Innodb_buffer_pool_pages_total'} ) . "";
+ }
+ }
+ if ( defined $myvar{'innodb_thread_concurrency'} ) {
+ infoprint "InnoDB Thread Concurrency: "
+ . $myvar{'innodb_thread_concurrency'};
+ }
+
+ # InnoDB Buffer Pull Size
+ if ( $myvar{'innodb_file_per_table'} eq "ON" ) {
+ goodprint "InnoDB File per table is activated";
+ }
+ else {
+ badprint "InnoDB File per table is not activated";
+ push( @adjvars, "innodb_file_per_table=ON" );
+ }
+
+ # InnoDB Buffer Pull Size
+ if ( $myvar{'innodb_buffer_pool_size'} > $enginestats{'InnoDB'} ) {
+ goodprint "InnoDB buffer pool / data size: "
+ . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . "/"
+ . hr_bytes( $enginestats{'InnoDB'} ) . "";
+ }
+ else {
+ badprint "InnoDB buffer pool / data size: "
+ . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . "/"
+ . hr_bytes( $enginestats{'InnoDB'} ) . "";
+ push( @adjvars,
+ "innodb_buffer_pool_size (>= "
+ . hr_bytes_rnd( $enginestats{'InnoDB'} )
+ . ") if possible." );
+ }
+ if ( $mycalc{'innodb_log_size_pct'} < 20
+ or $mycalc{'innodb_log_size_pct'} > 30 )
+ {
+ badprint "Ratio InnoDB log file size / InnoDB Buffer pool size ("
+ . $mycalc{'innodb_log_size_pct'} . " %): "
+ . hr_bytes( $myvar{'innodb_log_file_size'} )." * ".$myvar{'innodb_log_files_in_group'}. "/"
+ . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
+ . " should be equal 25%";
+ push( @adjvars,
+"innodb_log_file_size should be equals to 1/4 of buffer pool size (="
+ . hr_bytes_rnd( $myvar{'innodb_buffer_pool_size'} / 4 )
+ . ") if possible." );
+ }
+ else {
+ goodprint "InnoDB log file size / InnoDB Buffer pool size: "
+ . hr_bytes( $myvar{'innodb_log_file_size'} ) ." * ".$myvar{'innodb_log_files_in_group'}. "/"
+ . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
+ . " should be equal 25%";
+ }
+
+ # InnoDB Buffer Pull Instances (MySQL 5.6.6+)
+ if ( defined( $myvar{'innodb_buffer_pool_instances'} ) ) {
+
+ # Bad Value if > 64
+ if ( $myvar{'innodb_buffer_pool_instances'} > 64 ) {
+ badprint "InnoDB buffer pool instances: "
+ . $myvar{'innodb_buffer_pool_instances'} . "";
+ push( @adjvars, "innodb_buffer_pool_instances (<= 64)" );
+ }
+
+ # InnoDB Buffer Pull Size > 1Go
+ if ( $myvar{'innodb_buffer_pool_size'} > 1024 * 1024 * 1024 ) {
+
+# InnoDB Buffer Pull Size / 1Go = InnoDB Buffer Pull Instances limited to 64 max.
+
+ # InnoDB Buffer Pull Size > 64Go
+ my $max_innodb_buffer_pool_instances =
+ int( $myvar{'innodb_buffer_pool_size'} / ( 1024 * 1024 * 1024 ) );
+ $max_innodb_buffer_pool_instances = 64
+ if ( $max_innodb_buffer_pool_instances > 64 );
+
+ if ( $myvar{'innodb_buffer_pool_instances'} !=
+ $max_innodb_buffer_pool_instances )
+ {
+ badprint "InnoDB buffer pool instances: "
+ . $myvar{'innodb_buffer_pool_instances'} . "";
+ push( @adjvars,
+ "innodb_buffer_pool_instances(="
+ . $max_innodb_buffer_pool_instances
+ . ")" );
+ }
+ else {
+ goodprint "InnoDB buffer pool instances: "
+ . $myvar{'innodb_buffer_pool_instances'} . "";
+ }
+
+ # InnoDB Buffer Pull Size < 1Go
+ }
+ else {
+ if ( $myvar{'innodb_buffer_pool_instances'} != 1 ) {
+ badprint
+"InnoDB buffer pool <= 1G and Innodb_buffer_pool_instances(!=1).";
+ push( @adjvars, "innodb_buffer_pool_instances (=1)" );
+ }
+ else {
+ goodprint "InnoDB buffer pool instances: "
+ . $myvar{'innodb_buffer_pool_instances'} . "";
+ }
+ }
+ }
+
+ # InnoDB Used Buffer Pool Size vs CHUNK size
+ if ( !defined( $myvar{'innodb_buffer_pool_chunk_size'} ) ) {
+ infoprint
+ "InnoDB Buffer Pool Chunk Size not used or defined in your version";
+ }
+ else {
+ infoprint "Number of InnoDB Buffer Pool Chunk : "
+ . int( $myvar{'innodb_buffer_pool_size'} ) /
+ int( $myvar{'innodb_buffer_pool_chunk_size'} ) . " for "
+ . $myvar{'innodb_buffer_pool_instances'}
+ . " Buffer Pool Instance(s)";
+
+ if (
+ int( $myvar{'innodb_buffer_pool_size'} ) % (
+ int( $myvar{'innodb_buffer_pool_chunk_size'} ) *
+ int( $myvar{'innodb_buffer_pool_instances'} )
+ ) eq 0
+ )
+ {
+ goodprint
+"Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances";
+ }
+ else {
+ badprint
+"Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances";
+
+#push( @adjvars, "Adjust innodb_buffer_pool_instances, innodb_buffer_pool_chunk_size with innodb_buffer_pool_size" );
+ push( @adjvars,
+"innodb_buffer_pool_size must always be equal to or a multiple of innodb_buffer_pool_chunk_size * innodb_buffer_pool_instances"
+ );
+ }
+ }
+
+ # InnoDB Read efficency
+ if ( defined $mycalc{'pct_read_efficiency'}
+ && $mycalc{'pct_read_efficiency'} < 90 )
+ {
+ badprint "InnoDB Read buffer efficiency: "
+ . $mycalc{'pct_read_efficiency'} . "% ("
+ . ( $mystat{'Innodb_buffer_pool_read_requests'} -
+ $mystat{'Innodb_buffer_pool_reads'} )
+ . " hits/ "
+ . $mystat{'Innodb_buffer_pool_read_requests'}
+ . " total)";
+ }
+ else {
+ goodprint "InnoDB Read buffer efficiency: "
+ . $mycalc{'pct_read_efficiency'} . "% ("
+ . ( $mystat{'Innodb_buffer_pool_read_requests'} -
+ $mystat{'Innodb_buffer_pool_reads'} )
+ . " hits/ "
+ . $mystat{'Innodb_buffer_pool_read_requests'}
+ . " total)";
+ }
+
+ # InnoDB Write efficiency
+ if ( defined $mycalc{'pct_write_efficiency'}
+ && $mycalc{'pct_write_efficiency'} < 90 )
+ {
+ badprint "InnoDB Write Log efficiency: "
+ . abs( $mycalc{'pct_write_efficiency'} ) . "% ("
+ . abs( $mystat{'Innodb_log_write_requests'} -
+ $mystat{'Innodb_log_writes'} )
+ . " hits/ "
+ . $mystat{'Innodb_log_write_requests'}
+ . " total)";
+ }
+ else {
+ goodprint "InnoDB Write log efficiency: "
+ . $mycalc{'pct_write_efficiency'} . "% ("
+ . ( $mystat{'Innodb_log_write_requests'} -
+ $mystat{'Innodb_log_writes'} )
+ . " hits/ "
+ . $mystat{'Innodb_log_write_requests'}
+ . " total)";
+ }
+
+ # InnoDB Log Waits
+ if ( defined $mystat{'Innodb_log_waits'}
+ && $mystat{'Innodb_log_waits'} > 0 )
+ {
+ badprint "InnoDB log waits: "
+ . percentage( $mystat{'Innodb_log_waits'},
+ $mystat{'Innodb_log_writes'} )
+ . "% ("
+ . $mystat{'Innodb_log_waits'}
+ . " waits / "
+ . $mystat{'Innodb_log_writes'}
+ . " writes)";
+ push( @adjvars,
+ "innodb_log_buffer_size (>= "
+ . hr_bytes_rnd( $myvar{'innodb_log_buffer_size'} )
+ . ")" );
+ }
+ else {
+ goodprint "InnoDB log waits: "
+ . percentage( $mystat{'Innodb_log_waits'},
+ $mystat{'Innodb_log_writes'} )
+ . "% ("
+ . $mystat{'Innodb_log_waits'}
+ . " waits / "
+ . $mystat{'Innodb_log_writes'}
+ . " writes)";
+ }
+ $result{'Calculations'} = {%mycalc};
+}
+
+# Recommendations for Database metrics
+sub mysql_databases {
+ return if ( $opt{dbstat} == 0 );
+
+ subheaderprint "Database Metrics";
+ unless ( mysql_version_ge( 5, 5 ) ) {
+ infoprint
+"Skip Database metrics from information schema missing in this version";
+ return;
+ }
+
+ my @dblist = select_array("SHOW DATABASES;");
+ infoprint "There is " . scalar(@dblist) . " Database(s).";
+ my @totaldbinfo = split /\s/,
+ select_one(
+"SELECT SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH), COUNT(TABLE_NAME),COUNT(DISTINCT(TABLE_COLLATION)),COUNT(DISTINCT(ENGINE)) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ( 'mysql' );"
+ );
+ infoprint "All Databases:";
+ infoprint " +-- TABLE : "
+ . ( $totaldbinfo[4] eq 'NULL' ? 0 : $totaldbinfo[4] ) . "";
+ infoprint " +-- ROWS : "
+ . ( $totaldbinfo[0] eq 'NULL' ? 0 : $totaldbinfo[0] ) . "";
+ infoprint " +-- DATA : "
+ . hr_bytes( $totaldbinfo[1] ) . "("
+ . percentage( $totaldbinfo[1], $totaldbinfo[3] ) . "%)";
+ infoprint " +-- INDEX : "
+ . hr_bytes( $totaldbinfo[2] ) . "("
+ . percentage( $totaldbinfo[2], $totaldbinfo[3] ) . "%)";
+ infoprint " +-- SIZE : " . hr_bytes( $totaldbinfo[3] ) . "";
+ infoprint " +-- COLLA : "
+ . ( $totaldbinfo[5] eq 'NULL' ? 0 : $totaldbinfo[5] ) . " ("
+ . (
+ join ", ",
+ select_array(
+ "SELECT DISTINCT(TABLE_COLLATION) FROM information_schema.TABLES;")
+ ) . ")";
+ infoprint " +-- ENGIN : "
+ . ( $totaldbinfo[6] eq 'NULL' ? 0 : $totaldbinfo[6] ) . " ("
+ . (
+ join ", ",
+ select_array("SELECT DISTINCT(ENGINE) FROM information_schema.TABLES;")
+ ) . ")";
+
+ $result{'Databases'}{'All databases'}{'Rows'} =
+ ( $totaldbinfo[0] eq 'NULL' ? 0 : $totaldbinfo[0] );
+ $result{'Databases'}{'All databases'}{'Data Size'} = $totaldbinfo[1];
+ $result{'Databases'}{'All databases'}{'Data Pct'} =
+ percentage( $totaldbinfo[1], $totaldbinfo[3] ) . "%";
+ $result{'Databases'}{'All databases'}{'Index Size'} = $totaldbinfo[2];
+ $result{'Databases'}{'All databases'}{'Index Pct'} =
+ percentage( $totaldbinfo[2], $totaldbinfo[3] ) . "%";
+ $result{'Databases'}{'All databases'}{'Total Size'} = $totaldbinfo[3];
+ print "\n" unless ( $opt{'silent'} or $opt{'json'} );
+
+ foreach (@dblist) {
+ chomp($_);
+ if ( $_ eq "information_schema"
+ or $_ eq "performance_schema"
+ or $_ eq "mysql"
+ or $_ eq "" )
+ {
+ next;
+ }
+
+ my @dbinfo = split /\s/,
+ select_one(
+"SELECT TABLE_SCHEMA, SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH), COUNT(DISTINCT ENGINE),COUNT(TABLE_NAME),COUNT(DISTINCT(TABLE_COLLATION)),COUNT(DISTINCT(ENGINE)) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_' GROUP BY TABLE_SCHEMA ORDER BY TABLE_SCHEMA"
+ );
+ next unless defined $dbinfo[0];
+ infoprint "Database: " . $dbinfo[0] . "";
+ infoprint " +-- TABLE: "
+ . ( !defined( $dbinfo[6] ) or $dbinfo[6] eq 'NULL' ? 0 : $dbinfo[6] )
+ . "";
+ infoprint " +-- COLL : "
+ . ( $dbinfo[7] eq 'NULL' ? 0 : $dbinfo[7] ) . " ("
+ . (
+ join ", ",
+ select_array(
+"SELECT DISTINCT(TABLE_COLLATION) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_';"
+ )
+ ) . ")";
+ infoprint " +-- ROWS : "
+ . ( !defined( $dbinfo[1] ) or $dbinfo[1] eq 'NULL' ? 0 : $dbinfo[1] )
+ . "";
+ infoprint " +-- DATA : "
+ . hr_bytes( $dbinfo[2] ) . "("
+ . percentage( $dbinfo[2], $dbinfo[4] ) . "%)";
+ infoprint " +-- INDEX: "
+ . hr_bytes( $dbinfo[3] ) . "("
+ . percentage( $dbinfo[3], $dbinfo[4] ) . "%)";
+ infoprint " +-- TOTAL: " . hr_bytes( $dbinfo[4] ) . "";
+ infoprint " +-- ENGIN : "
+ . ( $dbinfo[8] eq 'NULL' ? 0 : $dbinfo[8] ) . " ("
+ . (
+ join ", ",
+ select_array(
+"SELECT DISTINCT(ENGINE) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_'"
+ )
+ ) . ")";
+ badprint "Index size is larger than data size for $dbinfo[0] \n"
+ if ( $dbinfo[2] ne 'NULL' ) and ( $dbinfo[3] ne 'NULL' ) and ( $dbinfo[2] < $dbinfo[3] );
+ badprint "There are " . $dbinfo[5] . " storage engines. Be careful. \n"
+ if $dbinfo[5] > 1;
+ $result{'Databases'}{ $dbinfo[0] }{'Rows'} = $dbinfo[1];
+ $result{'Databases'}{ $dbinfo[0] }{'Tables'} = $dbinfo[6];
+ $result{'Databases'}{ $dbinfo[0] }{'Collations'} = $dbinfo[7];
+ $result{'Databases'}{ $dbinfo[0] }{'Data Size'} = $dbinfo[2];
+ $result{'Databases'}{ $dbinfo[0] }{'Data Pct'} =
+ percentage( $dbinfo[2], $dbinfo[4] ) . "%";
+ $result{'Databases'}{ $dbinfo[0] }{'Index Size'} = $dbinfo[3];
+ $result{'Databases'}{ $dbinfo[0] }{'Index Pct'} =
+ percentage( $dbinfo[3], $dbinfo[4] ) . "%";
+ $result{'Databases'}{ $dbinfo[0] }{'Total Size'} = $dbinfo[4];
+
+ if ( $dbinfo[7] > 1 ) {
+ badprint $dbinfo[7]
+ . " different collations for database "
+ . $dbinfo[0];
+ push( @generalrec,
+ "Check all table collations are identical for all tables in "
+ . $dbinfo[0]
+ . " database." );
+ }
+ else {
+ goodprint $dbinfo[7]
+ . " collation for "
+ . $dbinfo[0]
+ . " database.";
+ }
+ if ( $dbinfo[8] > 1 ) {
+ badprint $dbinfo[8]
+ . " different engines for database "
+ . $dbinfo[0];
+ push( @generalrec,
+ "Check all table engines are identical for all tables in "
+ . $dbinfo[0]
+ . " database." );
+ }
+ else {
+ goodprint $dbinfo[8] . " engine for " . $dbinfo[0] . " database.";
+ }
+
+ my @distinct_column_charset = select_array(
+"select DISTINCT(CHARACTER_SET_NAME) from information_schema.COLUMNS where CHARACTER_SET_NAME IS NOT NULL AND TABLE_SCHEMA ='$_'"
+ );
+ infoprint "Charsets for $dbinfo[0] database table column: "
+ . join( ', ', @distinct_column_charset );
+ if ( scalar(@distinct_column_charset) > 1 ) {
+ badprint $dbinfo[0]
+ . " table column(s) has several charsets defined for all text like column(s).";
+ push( @generalrec,
+ "Limit charset for column to one charset if possible for "
+ . $dbinfo[0]
+ . " database." );
+ }
+ else {
+ goodprint $dbinfo[0]
+ . " table column(s) has same charset defined for all text like column(s).";
+ }
+
+ my @distinct_column_collation = select_array(
+"select DISTINCT(COLLATION_NAME) from information_schema.COLUMNS where COLLATION_NAME IS NOT NULL AND TABLE_SCHEMA ='$_'"
+ );
+ infoprint "Collations for $dbinfo[0] database table column: "
+ . join( ', ', @distinct_column_collation );
+ if ( scalar(@distinct_column_collation) > 1 ) {
+ badprint $dbinfo[0]
+ . " table column(s) has several collations defined for all text like column(s).";
+ push( @generalrec,
+ "Limit collations for column to one collation if possible for "
+ . $dbinfo[0]
+ . " database." );
+ }
+ else {
+ goodprint $dbinfo[0]
+ . " table column(s) has same collation defined for all text like column(s).";
+ }
+ }
+
+}
+
+# Recommendations for Indexes metrics
+sub mysql_indexes {
+ return if ( $opt{idxstat} == 0 );
+
+ subheaderprint "Indexes Metrics";
+ unless ( mysql_version_ge( 5, 5 ) ) {
+ infoprint
+ "Skip Index metrics from information schema missing in this version";
+ return;
+ }
+
+# unless ( mysql_version_ge( 5, 6 ) ) {
+# infoprint
+#"Skip Index metrics from information schema due to erroneous information provided in this version";
+# return;
+# }
+ my $selIdxReq = <<'ENDSQL';
+SELECT
+ CONCAT(CONCAT(t.TABLE_SCHEMA, '.'),t.TABLE_NAME) AS 'table'
+ , CONCAT(CONCAT(CONCAT(s.INDEX_NAME, '('),s.COLUMN_NAME), ')') AS 'index'
+ , s.SEQ_IN_INDEX AS 'seq'
+ , s2.max_columns AS 'maxcol'
+ , s.CARDINALITY AS 'card'
+ , t.TABLE_ROWS AS 'est_rows'
+ , INDEX_TYPE as type
+ , ROUND(((s.CARDINALITY / IFNULL(t.TABLE_ROWS, 0.01)) * 100), 2) AS 'sel'
+FROM INFORMATION_SCHEMA.STATISTICS s
+ INNER JOIN INFORMATION_SCHEMA.TABLES t
+ ON s.TABLE_SCHEMA = t.TABLE_SCHEMA
+ AND s.TABLE_NAME = t.TABLE_NAME
+ INNER JOIN (
+ SELECT
+ TABLE_SCHEMA
+ , TABLE_NAME
+ , INDEX_NAME
+ , MAX(SEQ_IN_INDEX) AS max_columns
+ FROM INFORMATION_SCHEMA.STATISTICS
+ WHERE TABLE_SCHEMA NOT IN ('mysql', 'information_schema', 'performance_schema')
+ AND INDEX_TYPE <> 'FULLTEXT'
+ GROUP BY TABLE_SCHEMA, TABLE_NAME, INDEX_NAME
+ ) AS s2
+ ON s.TABLE_SCHEMA = s2.TABLE_SCHEMA
+ AND s.TABLE_NAME = s2.TABLE_NAME
+ AND s.INDEX_NAME = s2.INDEX_NAME
+WHERE t.TABLE_SCHEMA NOT IN ('mysql', 'information_schema', 'performance_schema')
+AND t.TABLE_ROWS > 10
+AND s.CARDINALITY IS NOT NULL
+AND (s.CARDINALITY / IFNULL(t.TABLE_ROWS, 0.01)) < 8.00
+ORDER BY sel
+LIMIT 10;
+ENDSQL
+ my @idxinfo = select_array($selIdxReq);
+ infoprint "Worst selectivity indexes:";
+ foreach (@idxinfo) {
+ debugprint "$_";
+ my @info = split /\s/;
+ infoprint "Index: " . $info[1] . "";
+
+ infoprint " +-- COLUNM : " . $info[0] . "";
+ infoprint " +-- NB SEQS : " . $info[2] . " sequence(s)";
+ infoprint " +-- NB COLS : " . $info[3] . " column(s)";
+ infoprint " +-- CARDINALITY : " . $info[4] . " distinct values";
+ infoprint " +-- NB ROWS : " . $info[5] . " rows";
+ infoprint " +-- TYPE : " . $info[6];
+ infoprint " +-- SELECTIVITY : " . $info[7] . "%";
+
+ $result{'Indexes'}{ $info[1] }{'Colunm'} = $info[0];
+ $result{'Indexes'}{ $info[1] }{'Sequence number'} = $info[2];
+ $result{'Indexes'}{ $info[1] }{'Number of collunm'} = $info[3];
+ $result{'Indexes'}{ $info[1] }{'Cardianality'} = $info[4];
+ $result{'Indexes'}{ $info[1] }{'Row number'} = $info[5];
+ $result{'Indexes'}{ $info[1] }{'Index Type'} = $info[6];
+ $result{'Indexes'}{ $info[1] }{'Selectivity'} = $info[7];
+ if ( $info[7] < 25 ) {
+ badprint "$info[1] has a low selectivity";
+ }
+ }
+
+ return
+ unless ( defined( $myvar{'performance_schema'} )
+ and $myvar{'performance_schema'} eq 'ON' );
+
+ $selIdxReq = <<'ENDSQL';
+SELECT CONCAT(CONCAT(object_schema,'.'),object_name) AS 'table', index_name
+FROM performance_schema.table_io_waits_summary_by_index_usage
+WHERE index_name IS NOT NULL
+AND count_star =0
+AND index_name <> 'PRIMARY'
+AND object_schema != 'mysql'
+ORDER BY count_star, object_schema, object_name;
+ENDSQL
+ @idxinfo = select_array($selIdxReq);
+ infoprint "Unused indexes:";
+ push( @generalrec, "Remove unused indexes." ) if ( scalar(@idxinfo) > 0 );
+ foreach (@idxinfo) {
+ debugprint "$_";
+ my @info = split /\s/;
+ badprint "Index: $info[1] on $info[0] is not used.";
+ push @{ $result{'Indexes'}{'Unused Indexes'} },
+ $info[0] . "." . $info[1];
+ }
+}
+
+# Take the two recommendation arrays and display them at the end of the output
+sub make_recommendations {
+ $result{'Recommendations'} = \@generalrec;
+ $result{'Adjust variables'} = \@adjvars;
+ subheaderprint "Recommendations";
+ if ( @generalrec > 0 ) {
+ prettyprint "General recommendations:";
+ foreach (@generalrec) { prettyprint " " . $_ . ""; }
+ }
+ if ( @adjvars > 0 ) {
+ prettyprint "Variables to adjust:";
+ if ( $mycalc{'pct_max_physical_memory'} > 90 ) {
+ prettyprint
+ " *** MySQL's maximum memory usage is dangerously high ***\n"
+ . " *** Add RAM before increasing MySQL buffer variables ***";
+ }
+ foreach (@adjvars) { prettyprint " " . $_ . ""; }
+ }
+ if ( @generalrec == 0 && @adjvars == 0 ) {
+ prettyprint "No additional performance recommendations are available.";
+ }
+}
+
+sub close_outputfile {
+ close($fh) if defined($fh);
+}
+
+sub headerprint {
+ prettyprint
+ " >> MySQLTuner $tunerversion - Major Hayden \n"
+ . " >> Bug reports, feature requests, and downloads at http://mysqltuner.com/\n"
+ . " >> Run with '--help' for additional options and output filtering";
+}
+
+sub string2file {
+ my $filename = shift;
+ my $content = shift;
+ open my $fh, q(>), $filename
+ or die
+"Unable to open $filename in write mode. Please check permissions for this file or directory";
+ print $fh $content if defined($content);
+ close $fh;
+ debugprint $content if ( $opt{'debug'} );
+}
+
+sub file2array {
+ my $filename = shift;
+ debugprint "* reading $filename" if ( $opt{'debug'} );
+ my $fh;
+ open( $fh, q(<), "$filename" )
+ or die "Couldn't open $filename for reading: $!\n";
+ my @lines = <$fh>;
+ close($fh);
+ return @lines;
+}
+
+sub file2string {
+ return join( '', file2array(@_) );
+}
+
+my $templateModel;
+if ( $opt{'template'} ne 0 ) {
+ $templateModel = file2string( $opt{'template'} );
+}
+else {
+ # DEFAULT REPORT TEMPLATE
+ $templateModel = <<'END_TEMPLATE';
+
+
+
+ MySQLTuner Report
+
+
+
+
+Result output
+
+{$data}
+
+
+
+
+END_TEMPLATE
+}
+
+sub dump_result {
+ if ( $opt{'debug'} ) {
+ debugprint Dumper( \%result );
+ }
+
+ debugprint "HTML REPORT: $opt{'reportfile'}";
+
+ if ( $opt{'reportfile'} ne 0 ) {
+ eval { require Text::Template };
+ if ($@) {
+ badprint "Text::Template Module is needed.";
+ exit 1;
+ }
+
+ my $vars = { 'data' => Dumper( \%result ) };
+
+ my $template;
+ {
+ no warnings 'once';
+ $template = Text::Template->new(
+ TYPE => 'STRING',
+ PREPEND => q{;},
+ SOURCE => $templateModel
+ ) or die "Couldn't construct template: $Text::Template::ERROR";
+ }
+ open my $fh, q(>), $opt{'reportfile'}
+ or die
+"Unable to open $opt{'reportfile'} in write mode. please check permissions for this file or directory";
+ $template->fill_in( HASH => $vars, OUTPUT => $fh );
+ close $fh;
+ }
+ if ( $opt{'json'} ne 0 ) {
+ eval { require JSON };
+ if ($@) {
+ print "$bad JSON Module is needed.\n";
+ exit 1;
+ }
+ my $json = JSON->new->allow_nonref;
+ print $json->utf8(1)->pretty( ( $opt{'prettyjson'} ? 1 : 0 ) )
+ ->encode( \%result );
+ }
+}
+
+sub which {
+ my $prog_name = shift;
+ my $path_string = shift;
+ my @path_array = split /:/, $ENV{'PATH'};
+
+ for my $path (@path_array) {
+ if ( -x "$path/$prog_name" ) {
+ return "$path/$prog_name";
+ }
+ }
+
+ return 0;
+}
+
+# ---------------------------------------------------------------------------
+# BEGIN 'MAIN'
+# ---------------------------------------------------------------------------
+headerprint; # Header Print
+validate_tuner_version; # Check last version
+mysql_setup; # Gotta login first
+os_setup; # Set up some OS variables
+get_all_vars; # Toss variables/status into hashes
+get_tuning_info; # Get information about the tuning connexion
+validate_mysql_version; # Check current MySQL version
+
+check_architecture; # Suggest 64-bit upgrade
+system_recommendations; # avoid to many service on the same host
+log_file_recommandations; # check log file content
+check_storage_engines; # Show enabled storage engines
+mysql_databases; # Show informations about databases
+mysql_indexes; # Show informations about indexes
+security_recommendations; # Display some security recommendations
+cve_recommendations; # Display related CVE
+calculations; # Calculate everything we need
+mysql_stats; # Print the server stats
+mysqsl_pfs; # Print Performance schema info
+mariadb_threadpool; # Print MaraiDB ThreadPool stats
+mysql_myisam; # Print MyISAM stats
+mysql_innodb; # Print InnoDB stats
+mariadb_ariadb; # Print MaraiDB AriaDB stats
+mariadb_tokudb; # Print MariaDB Tokudb stats
+mariadb_xtradb; # Print MariaDB XtraDB stats
+mariadb_rockdb; # Print MariaDB RockDB stats
+mariadb_spider; # Print MariaDB Spider stats
+mariadb_connect; # Print MariaDB Connect stats
+mariadb_galera; # Print MariaDB Galera Cluster stats
+get_replication_status; # Print replication info
+make_recommendations; # Make recommendations based on stats
+dump_result; # Dump result if debug is on
+close_outputfile; # Close reportfile if needed
+
+# ---------------------------------------------------------------------------
+# END 'MAIN'
+# ---------------------------------------------------------------------------
+1;
+
+__END__
+=pod
+
+=encoding UTF-8
+
+=head1 NAME
+
+ MySQLTuner 1.7.0 - MySQL High Performance Tuning Script
+
+=head1 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
+
+=head1 CONNECTION AND AUTHENTIFICATION
+
+ --host Connect to a remote host to perform tests (default: localhost)
+ --socket Use a different socket for a local connection
+ --port Port to use for connection (default: 3306)
+ --user Username to use for authentication
+ --userenv Name of env variable which contains username to use for authentication
+ --pass Password to use for authentication
+ --passenv Name of env variable which contains password to use for authentication
+ --mysqladmin Path to a custom mysqladmin executable
+ --mysqlcmd Path to a custom mysql executable
+ --defaults-file Path to a custom .my.cnf
+=head1 PERFORMANCE AND REPORTING OPTIONS
+
+ --skipsize Don't enumerate tables and their types/sizes (default: on)
+ (Recommended for servers with many tables)
+ --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 Amount of RAM installed in megabytes
+ --forceswap Amount of swap memory configured in megabytes
+ --passwordfile Path to a password file list(one password by line)
+
+=head1 OUTPUT OPTIONS
+
+ --silent Don't output anything on screen
+ --nogood Remove OK responses
+ --nobad Remove negative/suggestion responses
+ --noinfo Remove informational responses
+ --debug Print debug information
+ --dbstat Print database information
+ --idxstat Print index information
+ --sysstat Print system information
+ --pfstat Print Performance schema
+ --bannedports Ports banned separated by comma(,)
+ --maxportallowed Number of ports opened allowed on this hosts
+ --cvefile CVE File for vulnerability checks
+ --nocolor Don't print output in color
+ --json Print result as JSON string
+ --buffers Print global and per-thread buffer values
+ --outputfile Path to a output txt file
+ --reportfile Path to a report txt file
+ --template Path to a template file
+ --verbose Prints out all options (default: no verbose)
+=head1 PERLDOC
+
+You can find documentation for this module with the perldoc command.
+
+ perldoc mysqltuner
+
+=head2 INTERNALS
+
+L
+
+ Internal documentation
+
+=head1 AUTHORS
+
+Major Hayden - major@mhtx.net
+
+=head1 CONTRIBUTORS
+
+=over 4
+
+=item *
+
+Matthew Montgomery
+
+=item *
+
+Paul Kehrer
+
+=item *
+
+Dave Burgess
+
+=item *
+
+Jonathan Hinds
+
+=item *
+
+Mike Jackson
+
+=item *
+
+Nils Breunese
+
+=item *
+
+Shawn Ashlee
+
+=item *
+
+Luuk Vosslamber
+
+=item *
+
+Ville Skytta
+
+=item *
+
+Trent Hornibrook
+
+=item *
+
+Jason Gill
+
+=item *
+
+Mark Imbriaco
+
+=item *
+
+Greg Eden
+
+=item *
+
+Aubin Galinotti
+
+=item *
+
+Giovanni Bechis
+
+=item *
+
+Bill Bradford
+
+=item *
+
+Ryan Novosielski
+
+=item *
+
+Michael Scheidell
+
+=item *
+
+Blair Christensen
+
+=item *
+
+Hans du Plooy
+
+=item *
+
+Victor Trac
+
+=item *
+
+Everett Barnes
+
+=item *
+
+Tom Krouper
+
+=item *
+
+Gary Barrueto
+
+=item *
+
+Simon Greenaway
+
+=item *
+
+Adam Stein
+
+=item *
+
+Isart Montane
+
+=item *
+
+Baptiste M.
+
+=item *
+
+Cole Turner
+
+=item *
+
+Major Hayden
+
+=item *
+
+Joe Ashcraft
+
+=item *
+
+Jean-Marie Renouard
+
+=item *
+
+Stephan GroBberndt
+
+=item *
+
+Christian Loos
+
+=back
+
+=head1 SUPPORT
+
+
+Bug reports, feature requests, and downloads at http://mysqltuner.com/
+
+Bug tracker can be found at https://github.com/major/MySQLTuner-perl/issues
+
+Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL
+
+=head1 SOURCE CODE
+
+L
+
+ git clone https://github.com/major/MySQLTuner-perl.git
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2006-2015 Major Hayden - major@mhtx.net
+
+For the latest updates, please visit http://mysqltuner.com/
+
+Git repository available at http://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 .
+
+=cut
+
+# Local variables:
+# indent-tabs-mode: t
+# cperl-indent-level: 8
+# perl-indent-level: 8
+# End:
+