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https://github.com/major/MySQLTuner-perl.git
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6750 lines
223 KiB
Perl
Executable File
6750 lines
223 KiB
Perl
Executable File
#!/usr/bin/env perl
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# mysqltuner.pl - Version 1.7.24
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# High Performance MySQL Tuning Script
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# Copyright (C) 2006-2020 Major Hayden - major@mhtx.net
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#
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# For the latest updates, please visit http://mysqltuner.pl/
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# Git repository available at https://github.com/major/MySQLTuner-perl
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# This project would not be possible without help from:
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# Matthew Montgomery Paul Kehrer Dave Burgess
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# Jonathan Hinds Mike Jackson Nils Breunese
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# Shawn Ashlee Luuk Vosslamber Ville Skytta
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# Trent Hornibrook Jason Gill Mark Imbriaco
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# Greg Eden Aubin Galinotti Giovanni Bechis
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# Bill Bradford Ryan Novosielski Michael Scheidell
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# Blair Christensen Hans du Plooy Victor Trac
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# Everett Barnes Tom Krouper Gary Barrueto
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# Simon Greenaway Adam Stein Isart Montane
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# Baptiste M. Cole Turner Major Hayden
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# Joe Ashcraft JeSan-Marie Renouard Christian Loos
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# Julien Francoz Daniel Black
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#
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# Inspired by Matthew Montgomery's tuning-primer.sh script:
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# http://www.day32.com/MySQL/
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#
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package main;
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use 5.005;
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use strict;
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use warnings;
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use diagnostics;
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use File::Spec;
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use Getopt::Long;
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use Pod::Usage;
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use File::Basename;
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use Cwd 'abs_path';
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use Data::Dumper;
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$Data::Dumper::Pair = " : ";
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# for which()
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#use Env;
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# Set up a few variables for use in the script
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my $tunerversion = "1.7.24";
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my ( @adjvars, @generalrec );
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# Set defaults
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my %opt = (
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"silent" => 0,
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"nobad" => 0,
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"nogood" => 0,
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"noinfo" => 0,
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"debug" => 0,
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"nocolor" => ( !-t STDOUT ),
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"color" => 0,
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"forcemem" => 0,
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"forceswap" => 0,
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"host" => 0,
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"socket" => 0,
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"port" => 0,
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"user" => 0,
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"pass" => 0,
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"password" => 0,
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"ssl-ca" => 0,
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"skipsize" => 0,
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"checkversion" => 0,
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"updateversion" => 0,
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"buffers" => 0,
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"passwordfile" => 0,
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"bannedports" => '',
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"maxportallowed" => 0,
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"outputfile" => 0,
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"noprocess" => 0,
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"dbstat" => 0,
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"nodbstat" => 0,
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"server-log" => '',
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"tbstat" => 0,
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"notbstat" => 0,
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"idxstat" => 0,
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"noidxstat" => 0,
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"sysstat" => 0,
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"nosysstat" => 0,
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"pfstat" => 0,
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"nopfstat" => 0,
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"skippassword" => 0,
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"noask" => 0,
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"template" => 0,
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"json" => 0,
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"prettyjson" => 0,
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"reportfile" => 0,
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"verbose" => 0,
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"defaults-file" => '',
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);
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# Gather the options from the command line
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GetOptions(
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\%opt, 'nobad',
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'nogood', 'noinfo',
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'debug', 'nocolor',
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'forcemem=i', 'forceswap=i',
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'host=s', 'socket=s',
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'port=i', 'user=s',
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'pass=s', 'skipsize',
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'checkversion', 'mysqladmin=s',
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'mysqlcmd=s', 'help',
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'buffers', 'skippassword',
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'passwordfile=s', 'outputfile=s',
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'silent', 'noask',
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'json', 'prettyjson',
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'template=s', 'reportfile=s',
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'cvefile=s', 'bannedports=s',
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'updateversion', 'maxportallowed=s',
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'verbose', 'password=s',
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'passenv=s', 'userenv=s',
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'defaults-file=s', 'ssl-ca=s',
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'color', 'noprocess',
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'dbstat', 'nodbstat',
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'tbstat', 'notbstat',
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'sysstat', 'nosysstat',
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'pfstat', 'nopfstat',
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'idxstat', 'noidxstat',
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'server-log=s',
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)
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or pod2usage(
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-exitval => 1,
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-verbose => 99,
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-sections => [
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"NAME",
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"IMPORTANT USAGE GUIDELINES",
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"CONNECTION AND AUTHENTICATION",
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"PERFORMANCE AND REPORTING OPTIONS",
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"OUTPUT OPTIONS"
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]
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);
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if ( defined $opt{'help'} && $opt{'help'} == 1 ) {
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pod2usage(
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-exitval => 0,
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-verbose => 99,
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-sections => [
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"NAME",
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"IMPORTANT USAGE GUIDELINES",
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"CONNECTION AND AUTHENTICATION",
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"PERFORMANCE AND REPORTING OPTIONS",
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"OUTPUT OPTIONS"
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]
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);
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}
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my $devnull = File::Spec->devnull();
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my $basic_password_files =
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( $opt{passwordfile} eq "0" )
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? abs_path( dirname(__FILE__) ) . "/basic_passwords.txt"
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: abs_path( $opt{passwordfile} );
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# Username from envvar
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if ( exists $opt{userenv} && exists $ENV{ $opt{userenv} } ) {
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$opt{user} = $ENV{ $opt{userenv} };
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}
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# Related to password option
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if ( exists $opt{passenv} && exists $ENV{ $opt{passenv} } ) {
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$opt{pass} = $ENV{ $opt{passenv} };
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}
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$opt{pass} = $opt{password} if ( $opt{pass} eq 0 and $opt{password} ne 0 );
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# for RPM distributions
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$basic_password_files = "/usr/share/mysqltuner/basic_passwords.txt"
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unless -f "$basic_password_files";
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# check if we need to enable verbose mode
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if ( $opt{verbose} ) {
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$opt{checkversion} = 1; #Check for updates to MySQLTuner
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$opt{dbstat} = 1; #Print database information
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$opt{tbstat} = 1; #Print database information
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$opt{idxstat} = 1; #Print index information
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$opt{sysstat} = 1; #Print index information
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$opt{buffers} = 1; #Print global and per-thread buffer values
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$opt{pfstat} = 1; #Print performance schema info.
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$opt{cvefile} = 'vulnerabilities.csv'; #CVE File for vulnerability checks
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}
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$opt{nocolor} = 1 if defined( $opt{outputfile} );
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$opt{tbstat} = 0 if ( $opt{notbstat} == 1 ); # Don't Print table information
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$opt{dbstat} = 0 if ( $opt{nodbstat} == 1 ); # Don't Print database information
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$opt{noprocess} = 0
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if ( $opt{noprocess} == 1 ); # Don't Print process information
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$opt{sysstat} = 0 if ( $opt{nosysstat} == 1 ); # Don't Print sysstat information
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$opt{pfstat} = 0
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if ( $opt{nopfstat} == 1 ); # Don't Print performance schema information
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$opt{idxstat} = 0 if ( $opt{noidxstat} == 1 ); # Don't Print index information
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# for RPM distributions
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$opt{cvefile} = "/usr/share/mysqltuner/vulnerabilities.csv"
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unless ( defined $opt{cvefile} and -f "$opt{cvefile}" );
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$opt{cvefile} = '' unless -f "$opt{cvefile}";
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$opt{cvefile} = './vulnerabilities.csv' if -f './vulnerabilities.csv';
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$opt{'bannedports'} = '' unless defined( $opt{'bannedports'} );
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my @banned_ports = split ',', $opt{'bannedports'};
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#
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my $outputfile = undef;
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$outputfile = abs_path( $opt{outputfile} ) unless $opt{outputfile} eq "0";
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my $fh = undef;
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open( $fh, '>', $outputfile )
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or die("Fail opening $outputfile")
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if defined($outputfile);
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$opt{nocolor} = 1 if defined($outputfile);
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$opt{nocolor} = 1 unless ( -t STDOUT );
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$opt{nocolor} = 0 if ( $opt{color} == 1 );
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# Setting up the colors for the print styles
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my $me = `whoami`;
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$me =~ s/\n//g;
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# Setting up the colors for the print styles
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my $good = ( $opt{nocolor} == 0 ) ? "[\e[0;32mOK\e[0m]" : "[OK]";
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my $bad = ( $opt{nocolor} == 0 ) ? "[\e[0;31m!!\e[0m]" : "[!!]";
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my $info = ( $opt{nocolor} == 0 ) ? "[\e[0;34m--\e[0m]" : "[--]";
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my $deb = ( $opt{nocolor} == 0 ) ? "[\e[0;31mDG\e[0m]" : "[DG]";
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my $cmd = ( $opt{nocolor} == 0 ) ? "\e[1;32m[CMD]($me)" : "[CMD]($me)";
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my $end = ( $opt{nocolor} == 0 ) ? "\e[0m" : "";
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# Maximum lines of log output to read from end
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my $maxlines = 30000;
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# Checks for supported or EOL'ed MySQL versions
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my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro );
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# Database
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my @dblist;
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# Super structure containing all information
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my %result;
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$result{'MySQLTuner'}{'version'} = $tunerversion;
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$result{'MySQLTuner'}{'options'} = \%opt;
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# Functions that handle the print styles
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sub prettyprint {
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print $_[0] . "\n" unless ( $opt{'silent'} or $opt{'json'} );
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print $fh $_[0] . "\n" if defined($fh);
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}
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sub goodprint { prettyprint $good. " " . $_[0] unless ( $opt{nogood} == 1 ); }
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sub infoprint { prettyprint $info. " " . $_[0] unless ( $opt{noinfo} == 1 ); }
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sub badprint { prettyprint $bad. " " . $_[0] unless ( $opt{nobad} == 1 ); }
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sub debugprint { prettyprint $deb. " " . $_[0] unless ( $opt{debug} == 0 ); }
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sub redwrap {
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return ( $opt{nocolor} == 0 ) ? "\e[0;31m" . $_[0] . "\e[0m" : $_[0];
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}
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sub greenwrap {
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return ( $opt{nocolor} == 0 ) ? "\e[0;32m" . $_[0] . "\e[0m" : $_[0];
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}
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sub cmdprint { prettyprint $cmd. " " . $_[0] . $end; }
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sub infoprintml {
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for my $ln (@_) { $ln =~ s/\n//g; infoprint "\t$ln"; }
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}
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sub infoprintcmd {
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cmdprint "@_";
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infoprintml grep { $_ ne '' and $_ !~ /^\s*$/ } `@_ 2>&1`;
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}
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sub subheaderprint {
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my $tln = 100;
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my $sln = 8;
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my $ln = length("@_") + 2;
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prettyprint " ";
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prettyprint "-" x $sln . " @_ " . "-" x ( $tln - $ln - $sln );
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}
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sub infoprinthcmd {
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subheaderprint "$_[0]";
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infoprintcmd "$_[1]";
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}
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# Calculates the number of physical cores considering HyperThreading
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sub cpu_cores {
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my $cntCPU =
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`awk -F: '/^core id/ && !P[\$2] { CORES++; P[\$2]=1 }; /^physical id/ && !N[\$2] { CPUs++; N[\$2]=1 }; END { print CPUs*CORES }' /proc/cpuinfo`;
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return ( $cntCPU == 0 ? `nproc` : $cntCPU );
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}
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# Calculates the parameter passed in bytes, then rounds it to one decimal place
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sub hr_bytes {
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my $num = shift;
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return "0B" unless defined($num);
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return "0B" if $num eq "NULL";
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if ( $num >= ( 1024**3 ) ) { #GB
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return sprintf( "%.1f", ( $num / ( 1024**3 ) ) ) . "G";
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}
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elsif ( $num >= ( 1024**2 ) ) { #MB
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return sprintf( "%.1f", ( $num / ( 1024**2 ) ) ) . "M";
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}
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elsif ( $num >= 1024 ) { #KB
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return sprintf( "%.1f", ( $num / 1024 ) ) . "K";
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}
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else {
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return $num . "B";
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}
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}
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sub hr_raw {
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my $num = shift;
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return "0" unless defined($num);
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return "0" if $num eq "NULL";
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if ( $num =~ /^(\d+)G$/ ) {
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return $1 * 1024 * 1024 * 1024;
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}
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if ( $num =~ /^(\d+)M$/ ) {
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return $1 * 1024 * 1024;
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}
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if ( $num =~ /^(\d+)K$/ ) {
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return $1 * 1024;
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}
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if ( $num =~ /^(\d+)$/ ) {
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return $1;
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}
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return $num;
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}
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# Calculates the parameter passed in bytes, then rounds it to the nearest integer
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sub hr_bytes_rnd {
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my $num = shift;
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return "0B" unless defined($num);
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return "0B" if $num eq "NULL";
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if ( $num >= ( 1024**3 ) ) { #GB
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return int( ( $num / ( 1024**3 ) ) ) . "G";
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}
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elsif ( $num >= ( 1024**2 ) ) { #MB
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return int( ( $num / ( 1024**2 ) ) ) . "M";
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}
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elsif ( $num >= 1024 ) { #KB
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return int( ( $num / 1024 ) ) . "K";
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}
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else {
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return $num . "B";
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}
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}
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# Calculates the parameter passed to the nearest power of 1000, then rounds it to the nearest integer
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sub hr_num {
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my $num = shift;
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if ( $num >= ( 1000**3 ) ) { # Billions
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return int( ( $num / ( 1000**3 ) ) ) . "B";
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}
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elsif ( $num >= ( 1000**2 ) ) { # Millions
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return int( ( $num / ( 1000**2 ) ) ) . "M";
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}
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elsif ( $num >= 1000 ) { # Thousands
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return int( ( $num / 1000 ) ) . "K";
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}
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else {
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return $num;
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}
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}
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# Calculate Percentage
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sub percentage {
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my $value = shift;
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my $total = shift;
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$total = 0 unless defined $total;
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$total = 0 if $total eq "NULL";
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return 100, 00 if $total == 0;
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return sprintf( "%.2f", ( $value * 100 / $total ) );
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}
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# Calculates uptime to display in a more attractive form
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sub pretty_uptime {
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my $uptime = shift;
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my $seconds = $uptime % 60;
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my $minutes = int( ( $uptime % 3600 ) / 60 );
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my $hours = int( ( $uptime % 86400 ) / (3600) );
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my $days = int( $uptime / (86400) );
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my $uptimestring;
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if ( $days > 0 ) {
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$uptimestring = "${days}d ${hours}h ${minutes}m ${seconds}s";
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}
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elsif ( $hours > 0 ) {
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$uptimestring = "${hours}h ${minutes}m ${seconds}s";
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}
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elsif ( $minutes > 0 ) {
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$uptimestring = "${minutes}m ${seconds}s";
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}
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else {
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$uptimestring = "${seconds}s";
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}
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return $uptimestring;
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}
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# Retrieves the memory installed on this machine
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my ( $physical_memory, $swap_memory, $duflags, $xargsflags );
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sub memerror {
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badprint
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"Unable to determine total memory/swap; use '--forcemem' and '--forceswap'";
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exit 1;
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}
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sub os_setup {
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my $os = `uname`;
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$duflags = ( $os =~ /Linux/ ) ? '-b' : '';
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$xargsflags = ( $os =~ /Darwin|SunOS/ ) ? '' : '-r';
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if ( $opt{'forcemem'} > 0 ) {
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$physical_memory = $opt{'forcemem'} * 1048576;
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infoprint "Assuming $opt{'forcemem'} MB of physical memory";
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if ( $opt{'forceswap'} > 0 ) {
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$swap_memory = $opt{'forceswap'} * 1048576;
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infoprint "Assuming $opt{'forceswap'} MB of swap space";
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}
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else {
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$swap_memory = 0;
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badprint "Assuming 0 MB of swap space (use --forceswap to specify)";
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}
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}
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else {
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if ( $os =~ /Linux|CYGWIN/ ) {
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$physical_memory =
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`grep -i memtotal: /proc/meminfo | awk '{print \$2}'`
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or memerror;
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$physical_memory *= 1024;
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$swap_memory =
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`grep -i swaptotal: /proc/meminfo | awk '{print \$2}'`
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or memerror;
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$swap_memory *= 1024;
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}
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elsif ( $os =~ /Darwin/ ) {
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$physical_memory = `sysctl -n hw.memsize` or memerror;
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$swap_memory =
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`sysctl -n vm.swapusage | awk '{print \$3}' | sed 's/\..*\$//'`
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or memerror;
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}
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elsif ( $os =~ /NetBSD|OpenBSD|FreeBSD/ ) {
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$physical_memory = `sysctl -n hw.physmem` or memerror;
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if ( $physical_memory < 0 ) {
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$physical_memory = `sysctl -n hw.physmem64` or memerror;
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}
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$swap_memory =
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`swapctl -l | grep '^/' | awk '{ s+= \$2 } END { print s }'`
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or memerror;
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}
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elsif ( $os =~ /BSD/ ) {
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$physical_memory = `sysctl -n hw.realmem` or memerror;
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$swap_memory =
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`swapinfo | grep '^/' | awk '{ s+= \$2 } END { print s }'`;
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}
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elsif ( $os =~ /SunOS/ ) {
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$physical_memory =
|
|
`/usr/sbin/prtconf | grep Memory | cut -f 3 -d ' '`
|
|
or memerror;
|
|
chomp($physical_memory);
|
|
$physical_memory = $physical_memory * 1024 * 1024;
|
|
}
|
|
elsif ( $os =~ /AIX/ ) {
|
|
$physical_memory =
|
|
`lsattr -El sys0 | grep realmem | awk '{print \$2}'`
|
|
or memerror;
|
|
chomp($physical_memory);
|
|
$physical_memory = $physical_memory * 1024;
|
|
$swap_memory = `lsps -as | awk -F"(MB| +)" '/MB /{print \$2}'`
|
|
or memerror;
|
|
chomp($swap_memory);
|
|
$swap_memory = $swap_memory * 1024 * 1024;
|
|
}
|
|
elsif ( $os =~ /windows/i ) {
|
|
$physical_memory =
|
|
`wmic ComputerSystem get TotalPhysicalMemory | perl -ne "chomp; print if /[0-9]+/;"`
|
|
or memerror;
|
|
$swap_memory =
|
|
`wmic OS get FreeVirtualMemory | perl -ne "chomp; print if /[0-9]+/;"`
|
|
or memerror;
|
|
}
|
|
}
|
|
debugprint "Physical Memory: $physical_memory";
|
|
debugprint "Swap Memory: $swap_memory";
|
|
chomp($physical_memory);
|
|
chomp($swap_memory);
|
|
chomp($os);
|
|
$result{'OS'}{'OS Type'} = $os;
|
|
$result{'OS'}{'Physical Memory'}{'bytes'} = $physical_memory;
|
|
$result{'OS'}{'Physical Memory'}{'pretty'} = hr_bytes($physical_memory);
|
|
$result{'OS'}{'Swap Memory'}{'bytes'} = $swap_memory;
|
|
$result{'OS'}{'Swap Memory'}{'pretty'} = hr_bytes($swap_memory);
|
|
$result{'OS'}{'Other Processes'}{'bytes'} = get_other_process_memory();
|
|
$result{'OS'}{'Other Processes'}{'pretty'} =
|
|
hr_bytes( get_other_process_memory() );
|
|
}
|
|
|
|
sub get_http_cli {
|
|
my $httpcli = which( "curl", $ENV{'PATH'} );
|
|
chomp($httpcli);
|
|
if ($httpcli) {
|
|
return $httpcli;
|
|
}
|
|
|
|
$httpcli = which( "wget", $ENV{'PATH'} );
|
|
chomp($httpcli);
|
|
if ($httpcli) {
|
|
return $httpcli;
|
|
}
|
|
return "";
|
|
}
|
|
|
|
# Checks for updates to MySQLTuner
|
|
sub validate_tuner_version {
|
|
if ( $opt{'checkversion'} eq 0 ) {
|
|
print "\n" unless ( $opt{'silent'} or $opt{'json'} );
|
|
infoprint "Skipped version check for MySQLTuner script";
|
|
return;
|
|
}
|
|
|
|
my $update;
|
|
my $url =
|
|
"https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl";
|
|
my $httpcli = get_http_cli();
|
|
if ( $httpcli =~ /curl$/ ) {
|
|
debugprint "$httpcli is available.";
|
|
|
|
debugprint
|
|
"$httpcli -m 3 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2";
|
|
$update =
|
|
`$httpcli -m 3 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2`;
|
|
chomp($update);
|
|
debugprint "VERSION: $update";
|
|
|
|
compare_tuner_version($update);
|
|
return;
|
|
}
|
|
|
|
if ( $httpcli =~ /wget$/ ) {
|
|
debugprint "$httpcli is available.";
|
|
|
|
debugprint
|
|
"$httpcli -e timestamping=off -t 1 -T 3 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2";
|
|
$update =
|
|
`$httpcli -e timestamping=off -t 1 -T 3 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2`;
|
|
chomp($update);
|
|
compare_tuner_version($update);
|
|
return;
|
|
}
|
|
debugprint "curl and wget are not available.";
|
|
infoprint "Unable to check for the latest MySQLTuner version";
|
|
infoprint
|
|
"Using --pass and --password option is insecure during MySQLTuner execution(Password disclosure)"
|
|
if ( defined( $opt{'pass'} ) );
|
|
}
|
|
|
|
# Checks for updates to MySQLTuner
|
|
sub update_tuner_version {
|
|
if ( $opt{'updateversion'} eq 0 ) {
|
|
badprint "Skipped version update for MySQLTuner script";
|
|
print "\n" unless ( $opt{'silent'} or $opt{'json'} );
|
|
return;
|
|
}
|
|
|
|
my $update;
|
|
my $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 3 '$url$script' 2>$devnull > $script";
|
|
$update =
|
|
`$httpcli --connect-timeout 3 '$url$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 1 -T 3 -O $script '$url$script'";
|
|
$update =
|
|
`$httpcli -qe timestamping=off -t 1 -T 3 -O $script '$url$script'`;
|
|
chomp($update);
|
|
|
|
if ( -s $script eq 0 ) {
|
|
badprint "Couldn't update $script";
|
|
}
|
|
else {
|
|
++$receivedScripts;
|
|
debugprint "$script updated: $update";
|
|
}
|
|
}
|
|
else {
|
|
debugprint "curl and wget are not available.";
|
|
infoprint "Unable to check for the latest MySQLTuner version";
|
|
}
|
|
|
|
}
|
|
|
|
if ( $receivedScripts eq $totalScripts ) {
|
|
goodprint "Successfully updated MySQLTuner script";
|
|
}
|
|
else {
|
|
badprint "Couldn't update MySQLTuner script";
|
|
}
|
|
infoprint "Stopping program: MySQLTuner has be updated.";
|
|
exit 0;
|
|
}
|
|
|
|
sub compare_tuner_version {
|
|
my $remoteversion = shift;
|
|
debugprint "Remote data: $remoteversion";
|
|
|
|
#exit 0;
|
|
if ( $remoteversion ne $tunerversion ) {
|
|
badprint
|
|
"There is a new version of MySQLTuner available($remoteversion)";
|
|
update_tuner_version();
|
|
return;
|
|
}
|
|
goodprint "You have the latest version of MySQLTuner($tunerversion)";
|
|
return;
|
|
}
|
|
|
|
# Checks to see if a MySQL login is possible
|
|
my ( $mysqllogin, $doremote, $remotestring, $mysqlcmd, $mysqladmincmd );
|
|
|
|
my $osname = $^O;
|
|
if ( $osname eq 'MSWin32' ) {
|
|
eval { require Win32; } or last;
|
|
$osname = Win32::GetOSName();
|
|
infoprint "* Windows OS($osname) is not fully supported.\n";
|
|
|
|
#exit 1;
|
|
}
|
|
|
|
sub mysql_setup {
|
|
$doremote = 0;
|
|
$remotestring = '';
|
|
if ( $opt{mysqladmin} ) {
|
|
$mysqladmincmd = $opt{mysqladmin};
|
|
}
|
|
else {
|
|
$mysqladmincmd = which( "mysqladmin", $ENV{'PATH'} );
|
|
if ( !-e $mysqladmincmd ) {
|
|
$mysqladmincmd = which( "mariadb-admin", $ENV{'PATH'} );
|
|
}
|
|
}
|
|
chomp($mysqladmincmd);
|
|
if ( !-e $mysqladmincmd && $opt{mysqladmin} ) {
|
|
badprint "Unable to find the mysqladmin command you specified: "
|
|
. $mysqladmincmd . "";
|
|
exit 1;
|
|
}
|
|
elsif ( !-e $mysqladmincmd ) {
|
|
badprint
|
|
"Couldn't find mysqladmin/mariadb-admin in your \$PATH. Is MySQL installed?";
|
|
exit 1;
|
|
}
|
|
if ( $opt{mysqlcmd} ) {
|
|
$mysqlcmd = $opt{mysqlcmd};
|
|
}
|
|
else {
|
|
$mysqlcmd = which( "mysql", $ENV{'PATH'} );
|
|
if ( !-e $mysqlcmd ) {
|
|
$mysqlcmd = which( "mariadb", $ENV{'PATH'} );
|
|
}
|
|
}
|
|
chomp($mysqlcmd);
|
|
if ( !-e $mysqlcmd && $opt{mysqlcmd} ) {
|
|
badprint "Unable to find the mysql command you specified: "
|
|
. $mysqlcmd . "";
|
|
exit 1;
|
|
}
|
|
elsif ( !-e $mysqlcmd ) {
|
|
badprint
|
|
"Couldn't find mysql/mariadb in your \$PATH. Is MySQL installed?";
|
|
exit 1;
|
|
}
|
|
$mysqlcmd =~ s/\n$//g;
|
|
my $mysqlclidefaults = `$mysqlcmd --print-defaults`;
|
|
debugprint "MySQL Client: $mysqlclidefaults";
|
|
if ( $mysqlclidefaults =~ /auto-vertical-output/ ) {
|
|
badprint
|
|
"Avoid auto-vertical-output in configuration file(s) for MySQL like";
|
|
exit 1;
|
|
}
|
|
|
|
debugprint "MySQL Client: $mysqlcmd";
|
|
|
|
$opt{port} = ( $opt{port} eq 0 ) ? 3306 : $opt{port};
|
|
|
|
# Are we being asked to connect via a socket?
|
|
if ( $opt{socket} ne 0 ) {
|
|
$remotestring = " -S $opt{socket} -P $opt{port}";
|
|
}
|
|
|
|
# Are we being asked to connect to a remote server?
|
|
if ( $opt{host} ne 0 ) {
|
|
chomp( $opt{host} );
|
|
|
|
# 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;
|
|
}
|
|
}
|
|
else {
|
|
$opt{host} = '127.0.0.1';
|
|
}
|
|
|
|
if ( $opt{'ssl-ca'} ne 0 ) {
|
|
if ( -e -r -f $opt{'ssl-ca'} ) {
|
|
$remotestring .= " --ssl-ca=$opt{'ssl-ca'}";
|
|
infoprint
|
|
"Will connect using ssl public key passed on the command line";
|
|
return 1;
|
|
}
|
|
else {
|
|
badprint
|
|
"Attempted to use passed ssl public key, but it was not found or could not be read";
|
|
exit 1;
|
|
}
|
|
}
|
|
|
|
# Did we already get a username 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
|
|
and $opt{'defaults-file'} eq '' )
|
|
{
|
|
|
|
# We have a Debian maintenance account, use it
|
|
$mysqllogin = "--defaults-file=/etc/mysql/debian.cnf";
|
|
my $loginstatus = `$mysqladmincmd $mysqllogin ping 2>&1`;
|
|
if ( $loginstatus =~ /mysqld is alive/ ) {
|
|
goodprint
|
|
"Logged in using credentials from Debian maintenance account.";
|
|
return 1;
|
|
}
|
|
else {
|
|
badprint
|
|
"Attempted to use login credentials from Debian maintenance account, but they failed.";
|
|
exit 1;
|
|
}
|
|
}
|
|
elsif ( $opt{'defaults-file'} ne '' and -r "$opt{'defaults-file'}" ) {
|
|
|
|
# defaults-file
|
|
debugprint "defaults file detected: $opt{'defaults-file'}";
|
|
my $mysqlclidefaults = `$mysqlcmd --print-defaults`;
|
|
debugprint "MySQL Client Default File: $opt{'defaults-file'}";
|
|
|
|
$mysqllogin = "--defaults-file=" . $opt{'defaults-file'};
|
|
my $loginstatus = `$mysqladmincmd $mysqllogin ping 2>&1`;
|
|
if ( $loginstatus =~ /mysqld is alive/ ) {
|
|
goodprint "Logged in using credentials from defaults file account.";
|
|
return 1;
|
|
}
|
|
}
|
|
else {
|
|
# It's not Plesk or Debian, we should try a login
|
|
debugprint "$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 = <STDIN>;
|
|
}
|
|
|
|
# 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");
|
|
$password = <STDIN>;
|
|
system("stty echo >$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;
|
|
}
|
|
|
|
sub human_size {
|
|
my ( $size, $n ) = ( shift, 0 );
|
|
++$n and $size /= 1024 until $size < 1024;
|
|
return sprintf "%.2f %s", $size, (qw[ bytes KB MB GB ])[$n];
|
|
}
|
|
|
|
# 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;
|
|
}
|
|
|
|
# MySQL Request one
|
|
sub select_one_g {
|
|
my $pattern = shift;
|
|
|
|
my $req = shift;
|
|
debugprint "PERFORM: $req ";
|
|
my @result = `$mysqlcmd $mysqllogin -re "\\w$req\\G" 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 : $?";
|
|
chomp(@result);
|
|
return ( grep { /$pattern/ } @result )[0];
|
|
}
|
|
|
|
sub select_str_g {
|
|
my $pattern = shift;
|
|
|
|
my $req = shift;
|
|
my $str = select_one_g $pattern, $req;
|
|
return () unless defined $str;
|
|
my @val = split /:/, $str;
|
|
shift @val;
|
|
return trim(@val);
|
|
}
|
|
|
|
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 did not 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;
|
|
unless ( defined( $myvar{'innodb_support_xa'} ) ) {
|
|
$myvar{'innodb_support_xa'} = 'ON';
|
|
}
|
|
$mystat{'Uptime'} = 1
|
|
unless defined( $mystat{'Uptime'} )
|
|
and $mystat{'Uptime'} > 0;
|
|
$myvar{'have_galera'} = "NO";
|
|
if ( defined( $myvar{'wsrep_provider_options'} )
|
|
&& $myvar{'wsrep_provider_options'} ne ""
|
|
&& $myvar{'wsrep_on'} ne "OFF" )
|
|
{
|
|
$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 #513
|
|
$myvar{'gtid_mode'} = 'ON'
|
|
if ( defined( $myvar{'gtid_current_pos'} )
|
|
and $myvar{'gtid_current_pos'} ne '' );
|
|
|
|
$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 get_log_file_real_path {
|
|
my $file = shift;
|
|
my $hostname = shift;
|
|
my $datadir = shift;
|
|
if ( -f "$file" ) {
|
|
return $file;
|
|
}
|
|
elsif ( -f "$hostname.log" ) {
|
|
return "$hostname.log";
|
|
}
|
|
elsif ( -f "$hostname.err" ) {
|
|
return "$hostname.err";
|
|
}
|
|
elsif ( -f "$datadir$hostname.err" ) {
|
|
return "$datadir$hostname.err";
|
|
}
|
|
elsif ( -f "$datadir$hostname.log" ) {
|
|
return "$datadir$hostname.log";
|
|
}
|
|
elsif ( -f "$datadir" . "mysql_error.log" ) {
|
|
return "$datadir" . "mysql_error.log";
|
|
}
|
|
elsif ( -f "/var/log/mysql.log" ) {
|
|
return "/var/log/mysql.log";
|
|
}
|
|
elsif ( -f "/var/log/mysqld.log" ) {
|
|
return "/var/log/mysqld.log";
|
|
}
|
|
elsif ( -f "/var/log/mysql/$hostname.err" ) {
|
|
return "/var/log/mysql/$hostname.err";
|
|
}
|
|
elsif ( -f "/var/log/mysql/$hostname.log" ) {
|
|
return "/var/log/mysql/$hostname.log";
|
|
}
|
|
elsif ( -f "/var/log/mysql/" . "mysql_error.log" ) {
|
|
return "/var/log/mysql/" . "mysql_error.log";
|
|
}
|
|
else {
|
|
return $file;
|
|
}
|
|
}
|
|
|
|
sub log_file_recommendations {
|
|
my $fh;
|
|
$myvar{'log_error'} = $opt{'server-log'}
|
|
|| get_log_file_real_path( $myvar{'log_error'}, $myvar{'hostname'},
|
|
$myvar{'datadir'} );
|
|
|
|
subheaderprint "Log file Recommendations";
|
|
if ( "$myvar{'log_error'}" eq "stderr" ) {
|
|
badprint "log_error is set to $myvar{'log_error'} MT can't read stderr";
|
|
return;
|
|
}
|
|
elsif ( $myvar{'log_error'} =~ /^(docker|podman|kubectl):(.*)/ ) {
|
|
open( $fh, '-|', "$1 logs --tail=$maxlines '$2'" )
|
|
// die "Can't start $1 $!";
|
|
goodprint "Log from cloud` $myvar{'log_error'} exists";
|
|
}
|
|
elsif ( $myvar{'log_error'} =~ /^systemd:(.*)/ ) {
|
|
open( $fh, '-|', "journalctl -n $maxlines -b -u '$1'" )
|
|
// die "Can't start journalctl $!";
|
|
goodprint "Log journal` $myvar{'log_error'} exists";
|
|
}
|
|
elsif ( -f "$myvar{'log_error'}" ) {
|
|
goodprint "Log file $myvar{'log_error'} exists";
|
|
my $size = ( stat $myvar{'log_error'} )[7];
|
|
infoprint "Log file: "
|
|
. $myvar{'log_error'} . "("
|
|
. hr_bytes_rnd($size) . ")";
|
|
|
|
if ( $size > 0 ) {
|
|
goodprint "Log file $myvar{'log_error'} is not empty";
|
|
if ( $size < 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!";
|
|
}
|
|
}
|
|
else {
|
|
infoprint
|
|
"Log file $myvar{'log_error'} is empty. Assuming log-rotation. Use --server-log={file} for explicit file";
|
|
return;
|
|
}
|
|
if ( !open( $fh, '<', $myvar{'log_error'} ) ) {
|
|
badprint "Log file $myvar{'log_error'} isn't readable.";
|
|
return;
|
|
}
|
|
goodprint "Log file $myvar{'log_error'} is readable.";
|
|
|
|
if ( $maxlines * 80 < $size ) {
|
|
seek( $fh, -$maxlines * 80, 2 );
|
|
<$fh>; # discard line fragment
|
|
}
|
|
}
|
|
else {
|
|
badprint "Log file $myvar{'log_error'} doesn't exist";
|
|
return;
|
|
}
|
|
|
|
my $numLi = 0;
|
|
my $nbWarnLog = 0;
|
|
my $nbErrLog = 0;
|
|
my @lastShutdowns;
|
|
my @lastStarts;
|
|
|
|
while ( my $logLi = <$fh> ) {
|
|
chomp $logLi;
|
|
$numLi++;
|
|
debugprint "$numLi: $logLi"
|
|
if $logLi =~ /warning|error/i and $logLi !~ /Logging to/;
|
|
$nbErrLog++ if $logLi =~ /error/i and $logLi !~ /Logging to/;
|
|
$nbWarnLog++ if $logLi =~ /warning/i;
|
|
push @lastShutdowns, $logLi
|
|
if $logLi =~ /Shutdown complete/ and $logLi !~ /Innodb/i;
|
|
push @lastStarts, $logLi if $logLi =~ /ready for connections/;
|
|
}
|
|
close $fh;
|
|
|
|
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;
|
|
}
|
|
|
|
#$mysqlvermajor=10;
|
|
#$mysqlverminor=1;
|
|
#$mysqlvermicro=17;
|
|
#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 {
|
|
return 0 if ( $opt{tbstat} == 0 );
|
|
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_release = $info_release[3];
|
|
$os_release =~ s/.*="//;
|
|
$os_release =~ s/"$//;
|
|
return $os_release;
|
|
}
|
|
|
|
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_release = $info_release[0];
|
|
$os_release =~ s/.*="//;
|
|
$os_release =~ s/"$//;
|
|
return $os_release;
|
|
}
|
|
|
|
if ( -f "/etc/issue" ) {
|
|
my @info_release = get_file_contents "/etc/issue";
|
|
my $os_release = $info_release[0];
|
|
$os_release =~ s/\s+\\n.*//;
|
|
return $os_release;
|
|
}
|
|
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 $info =~ m{(\d+)\t/(run|dev|sys|proc|snap)($|/)};
|
|
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 2>&1`;
|
|
@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 10 > /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'}{'NbCore'} = cpu_cores;
|
|
infoprint "Number of Core CPU : " . cpu_cores;
|
|
$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";
|
|
$result{'Network'}{'Internal Ip'} = `ifconfig| grep -A1 mtu`;
|
|
my $httpcli = get_http_cli();
|
|
infoprint "HTTP client found: $httpcli" if defined $httpcli;
|
|
|
|
my $ext_ip = "";
|
|
if ( $httpcli =~ /curl$/ ) {
|
|
$ext_ip = infocmd_one "$httpcli -m 3 ipecho.net/plain";
|
|
}
|
|
elsif ( $httpcli =~ /wget$/ ) {
|
|
|
|
$ext_ip = infocmd_one "$httpcli -t 1 -T 3 -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 : ";
|
|
infocmd_tab "uptime";
|
|
$result{'OS'}{'Uptime'} = `uptime`;
|
|
}
|
|
|
|
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 ( mysql_version_eq(8) ) {
|
|
infoprint "Skipped due to unsupported feature for MySQL 8";
|
|
return;
|
|
}
|
|
|
|
#exit 0;
|
|
if ( $opt{skippassword} eq 1 ) {
|
|
infoprint "Skipped due to --skippassword option";
|
|
return;
|
|
}
|
|
|
|
my $PASS_COLUMN_NAME = 'password';
|
|
|
|
# New table schema available since mysql-5.7 and mariadb-10.2
|
|
# But need to be checked
|
|
if ( $myvar{'version'} =~ /5\.7|10\.[2-5]\..*MariaDB*/ ) {
|
|
my $password_column_exists =
|
|
`$mysqlcmd $mysqllogin -Bse "SELECT 1 FROM information_schema.columns WHERE TABLE_SCHEMA = 'mysql' AND TABLE_NAME = 'user' AND COLUMN_NAME = 'password'" 2>>/dev/null`;
|
|
my $authstring_column_exists =
|
|
`$mysqlcmd $mysqllogin -Bse "SELECT 1 FROM information_schema.columns WHERE TABLE_SCHEMA = 'mysql' AND TABLE_NAME = 'user' AND COLUMN_NAME = 'authentication_string'" 2>>/dev/null`;
|
|
if ( $password_column_exists && $authstring_column_exists ) {
|
|
$PASS_COLUMN_NAME =
|
|
"IF(plugin='mysql_native_password', authentication_string, password)";
|
|
}
|
|
elsif ($authstring_column_exists) {
|
|
$PASS_COLUMN_NAME = 'authentication_string';
|
|
}
|
|
elsif ( !$password_column_exists ) {
|
|
infoprint "Skipped due to none of known auth columns exists";
|
|
return;
|
|
}
|
|
}
|
|
debugprint "Password column = $PASS_COLUMN_NAME";
|
|
|
|
# Looking for Anonymous users
|
|
my @mysqlstatlist = select_array
|
|
"SELECT CONCAT(QUOTE(user), '\@', QUOTE(host)) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL";
|
|
debugprint Dumper \@mysqlstatlist;
|
|
|
|
#exit 0;
|
|
if (@mysqlstatlist) {
|
|
push( @generalrec,
|
|
"Remove Anonymous User accounts - there are "
|
|
. scalar(@mysqlstatlist)
|
|
. " anonymous accounts." );
|
|
foreach my $line ( sort @mysqlstatlist ) {
|
|
chomp($line);
|
|
badprint "User "
|
|
. $line
|
|
. " is an anonymous account. Remove with DROP USER "
|
|
. $line . ";";
|
|
}
|
|
}
|
|
else {
|
|
goodprint "There are no anonymous accounts for any database users";
|
|
}
|
|
if ( mysql_version_le( 5, 1 ) ) {
|
|
badprint "No more password checks for MySQL version <=5.1";
|
|
badprint "MySQL version <=5.1 are deprecated and end of support.";
|
|
return;
|
|
}
|
|
|
|
# Looking for Empty Password
|
|
if ( mysql_version_ge( 10, 4 ) ) {
|
|
@mysqlstatlist = select_array
|
|
q{SELECT CONCAT(QUOTE(user), '@', QUOTE(host)) FROM mysql.global_priv WHERE
|
|
user != ''
|
|
AND JSON_CONTAINS(Priv, '"mysql_native_password"', '$.plugin') AND JSON_CONTAINS(Priv, '""', '$.authentication_string')
|
|
AND NOT JSON_CONTAINS(Priv, 'true', '$.account_locked')};
|
|
}
|
|
else {
|
|
@mysqlstatlist = select_array
|
|
"SELECT CONCAT(QUOTE(user), '\@', QUOTE(host)) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL)
|
|
AND user != ''
|
|
/*!50501 AND plugin NOT IN ('auth_socket', 'unix_socket', 'win_socket', 'auth_pam_compat') */
|
|
/*!80000 AND account_locked = 'N' AND password_expired = 'N' */";
|
|
}
|
|
if (@mysqlstatlist) {
|
|
foreach my $line ( sort @mysqlstatlist ) {
|
|
chomp($line);
|
|
badprint "User '" . $line . "' has no password set.";
|
|
push( @generalrec,
|
|
"Set up a Secure Password for $line user: SET PASSWORD FOR $line = 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 ( $valPlugin >= 1 ) {
|
|
infoprint
|
|
"Bug #80860 MySQL 5.7: Avoid testing password when validate_password is activated";
|
|
return;
|
|
}
|
|
}
|
|
|
|
# Looking for User with user/ uppercase /capitalise user as password
|
|
@mysqlstatlist = select_array
|
|
"SELECT CONCAT(QUOTE(user), '\@', QUOTE(host)) FROM mysql.user WHERE user != '' AND (CAST($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 $line user: SET PASSWORD FOR $line = PASSWORD('secure_password');"
|
|
);
|
|
}
|
|
}
|
|
|
|
@mysqlstatlist = select_array
|
|
"SELECT CONCAT(QUOTE(user), '\@', host) FROM mysql.user WHERE HOST='%'";
|
|
if (@mysqlstatlist) {
|
|
foreach my $line ( sort @mysqlstatlist ) {
|
|
chomp($line);
|
|
my $luser = ( split /@/, $line )[0];
|
|
badprint "User '" . $line
|
|
. "' does not specify hostname restrictions.";
|
|
push( @generalrec,
|
|
"Restrict Host for $luser\@% to $luser\@LimitedIPRangeOrLocalhost"
|
|
);
|
|
push( @generalrec,
|
|
"RENAME USER $luser\@'%' TO "
|
|
. $luser
|
|
. "\@LimitedIPRangeOrLocalhost;" );
|
|
}
|
|
}
|
|
|
|
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.";
|
|
|
|
push( @generalrec,
|
|
"Set up a Secure Password for $line user: SET PASSWORD FOR '"
|
|
. ( split /@/, $line )[0] . "'\@'"
|
|
. ( split /@/, $line )[1]
|
|
. "' = PASSWORD('secure_password');" );
|
|
$nbins++;
|
|
}
|
|
}
|
|
debugprint "$nbInterPass / " . scalar(@passwords)
|
|
if ( $nbInterPass % 1000 == 0 );
|
|
}
|
|
}
|
|
if ( $nbins > 0 ) {
|
|
push( @generalrec,
|
|
$nbins
|
|
. " user(s) used basic or weak password from basic dictionary." );
|
|
}
|
|
}
|
|
|
|
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).";
|
|
}
|
|
infoprint "Binlog format: " . $myvar{'binlog_format'};
|
|
infoprint "XA support enabled: " . $myvar{'innodb_support_xa'};
|
|
|
|
infoprint "Semi synchronous replication Master: "
|
|
. (
|
|
defined( $myvar{'rpl_semi_sync_master_enabled'} )
|
|
? $myvar{'rpl_semi_sync_master_enabled'}
|
|
: 'Not Activated'
|
|
);
|
|
infoprint "Semi synchronous replication Slave: "
|
|
. (
|
|
defined( $myvar{'rpl_semi_sync_slave_enabled'} )
|
|
? $myvar{'rpl_semi_sync_slave_enabled'}
|
|
: 'Not Activated'
|
|
);
|
|
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 or replication not started.";
|
|
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_eq(8)
|
|
or mysql_version_eq( 5, 6 )
|
|
or mysql_version_eq( 5, 7 )
|
|
or mysql_version_eq( 10, 2 )
|
|
or mysql_version_eq( 10, 3 )
|
|
or mysql_version_eq( 10, 4 )
|
|
or mysql_version_eq( 10, 5 ) )
|
|
{
|
|
goodprint "Currently running supported MySQL version "
|
|
. $myvar{'version'} . "";
|
|
return;
|
|
}
|
|
if ( mysql_version_ge(5)
|
|
or mysql_version_ge(4)
|
|
or mysql_version_eq( 10, 0 ) )
|
|
{
|
|
badprint "Your MySQL version "
|
|
. $myvar{'version'}
|
|
. " is EOL software! Upgrade soon!";
|
|
}
|
|
}
|
|
|
|
# Checks if MySQL version is equal to (major, minor, micro)
|
|
sub mysql_version_eq {
|
|
my ( $maj, $min, $mic ) = @_;
|
|
my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) =
|
|
$myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/;
|
|
|
|
return int($mysqlvermajor) == int($maj)
|
|
if ( !defined($min) && !defined($mic) );
|
|
return int($mysqlvermajor) == int($maj) && int($mysqlverminor) == int($min)
|
|
if ( !defined($mic) );
|
|
return ( int($mysqlvermajor) == int($maj)
|
|
&& int($mysqlverminor) == int($min)
|
|
&& int($mysqlvermicro) == int($mic) );
|
|
}
|
|
|
|
# Checks if MySQL version is greater than equal to (major, minor, micro)
|
|
sub mysql_version_ge {
|
|
my ( $maj, $min, $mic ) = @_;
|
|
$min ||= 0;
|
|
$mic ||= 0;
|
|
my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) =
|
|
$myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/;
|
|
|
|
return
|
|
int($mysqlvermajor) > int($maj)
|
|
|| ( int($mysqlvermajor) == int($maj) && int($mysqlverminor) > int($min) )
|
|
|| ( int($mysqlvermajor) == int($maj)
|
|
&& int($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;
|
|
my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) =
|
|
$myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/;
|
|
return
|
|
int($mysqlvermajor) < int($maj)
|
|
|| ( int($mysqlvermajor) == int($maj) && int($mysqlverminor) < int($min) )
|
|
|| ( int($mysqlvermajor) == int($maj)
|
|
&& int($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 ) = @_;
|
|
my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) =
|
|
$myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/;
|
|
|
|
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|s390x)/ ) {
|
|
$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 {
|
|
subheaderprint "Storage Engine Statistics";
|
|
if ( $opt{skipsize} eq 1 ) {
|
|
infoprint "Skipped due to --skipsize option";
|
|
return;
|
|
}
|
|
|
|
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) or trim($engine) eq '' );
|
|
$size = 0 unless ( defined($size) or trim($engine) eq '' );
|
|
$isize = 0 unless ( defined($isize) or trim($engine) eq '' );
|
|
$dsize = 0 unless ( defined($dsize) or trim($engine) eq '' );
|
|
$count = 0 unless ( defined($count) or trim($engine) eq '' );
|
|
$enginestats{$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 $engine eq 'NULL' or not defined($engine);
|
|
$size = 0 if $size eq 'NULL' or not defined($size);
|
|
$datafree = 0 if $datafree eq 'NULL' or not defined($datafree);
|
|
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 $engine tables: "
|
|
. hr_bytes($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 ( $full_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;
|
|
my ( $table_schema, $table_name ) = split( /\./, $full_table_name );
|
|
push( @generalrec,
|
|
" OPTIMIZE TABLE `$table_schema`.`$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{'max_allowed_packet'} +
|
|
$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 theoretically 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 theoretically 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",
|
|
( ( $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" -print0 2>&1 | xargs $xargsflags -0 du -L $duflags 2>&1`;
|
|
$mycalc{'total_myisam_indexes'} = $size;
|
|
$size = 0 + (split)[0]
|
|
for
|
|
`find "$myvar{'datadir'}" -name "*.MAI" -print0 2>&1 | xargs $xargsflags -0 du -L $duflags 2>&1`;
|
|
$mycalc{'total_aria_indexes'} = $size;
|
|
}
|
|
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'} ) {
|
|
chomp( $mycalc{'total_myisam_indexes'} );
|
|
}
|
|
if ( defined $mycalc{'total_aria_indexes'} ) {
|
|
chomp( $mycalc{'total_aria_indexes'} );
|
|
}
|
|
|
|
# Query cache
|
|
if ( mysql_version_ge(8) and mysql_version_le(10) ) {
|
|
$mycalc{'query_cache_efficiency'} = 0;
|
|
}
|
|
elsif ( 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'} );
|
|
}
|
|
if ( !defined $myvar{'innodb_buffer_pool_size'} ) {
|
|
$mycalc{'innodb_log_size_pct'} = 0;
|
|
$myvar{'innodb_buffer_pool_size'} = 0;
|
|
}
|
|
|
|
# InnoDB Buffer pool read cache efficiency
|
|
(
|
|
$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 efficiency
|
|
( $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 was started within the 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() );
|
|
|
|
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_pf_memory();
|
|
$result{'P_S'}{'pretty_memory'} =
|
|
hr_bytes_rnd( get_pf_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 ( defined( $result{'Variables'}{'skip_networking'} )
|
|
&& $result{'Variables'}{'skip_networking'} eq 'ON' )
|
|
{
|
|
infoprint
|
|
"Skipped name resolution test due to skip_networking=ON in system variables.";
|
|
}
|
|
elsif ( not defined( $result{'Variables'}{'skip_name_resolve'} ) ) {
|
|
infoprint
|
|
"Skipped name resolution test due to missing skip_name_resolve in system variables.";
|
|
}
|
|
elsif ( $result{'Variables'}{'skip_name_resolve'} eq 'OFF' ) {
|
|
badprint
|
|
"name resolution is active : a reverse name resolution is made for each new connection and can reduce performance";
|
|
push( @generalrec,
|
|
"Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1"
|
|
);
|
|
}
|
|
|
|
# Query cache
|
|
if ( !mysql_version_ge(4) ) {
|
|
|
|
# MySQL versions < 4.01 don't support query caching
|
|
push( @generalrec,
|
|
"Upgrade MySQL to version 4+ to utilize query caching" );
|
|
}
|
|
elsif ( mysql_version_eq(8) ) {
|
|
infoprint "Query cache have been removed in MySQL 8";
|
|
|
|
#return;
|
|
}
|
|
elsif ($myvar{'query_cache_size'} < 1
|
|
or $myvar{'query_cache_type'} eq "OFF" )
|
|
{
|
|
goodprint
|
|
"Query cache is disabled by default due to mutex contention on multiprocessor machines.";
|
|
}
|
|
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_size (=0)" );
|
|
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,
|
|
"We will suggest raising the 'join_buffer_size' until JOINs not using indexes are found.
|
|
See https://dev.mysql.com/doc/internals/en/join-buffer-size.html
|
|
(specially the conclusions at the bottom of the page)."
|
|
);
|
|
}
|
|
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 ( defined( $myvar{'thread_handling'} )
|
|
and $myvar{'thread_handling'} eq 'pool-of-threads' )
|
|
{
|
|
# https://www.percona.com/doc/percona-server/LATEST/performance/threadpool.html
|
|
# When thread pool is enabled, the value of the thread_cache_size variable
|
|
# is ignored. The Threads_cached status variable contains 0 in this case.
|
|
infoprint "Thread cache not used with thread_handling=pool-of-threads";
|
|
}
|
|
else {
|
|
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 ( $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: https://bit.ly/2Fulv7r" );
|
|
push( @generalrec,
|
|
"Read this before increasing for MariaDB"
|
|
. " https://mariadb.com/kb/en/library/optimizing-table_open_cache/"
|
|
);
|
|
push( @generalrec,
|
|
"This is MyISAM only table_cache scalability problem, InnoDB not affected."
|
|
);
|
|
push( @generalrec,
|
|
"See more details here: https://bugs.mysql.com/bug.php?id=49177"
|
|
);
|
|
push( @generalrec,
|
|
"This bug already fixed in MySQL 5.7.9 and newer MySQL versions."
|
|
);
|
|
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)";
|
|
}
|
|
}
|
|
|
|
# Table definition cache
|
|
my $nbtables = select_one('SELECT COUNT(*) FROM information_schema.tables');
|
|
$mycalc{'total_tables'} = $nbtables;
|
|
if ( defined $myvar{'table_definition_cache'} ) {
|
|
if ( $myvar{'table_definition_cache'} == -1 ) {
|
|
infoprint( "table_definition_cache("
|
|
. $myvar{'table_definition_cache'}
|
|
. ") is in autosizing mode" );
|
|
}
|
|
elsif ( $myvar{'table_definition_cache'} < $nbtables ) {
|
|
badprint "table_definition_cache("
|
|
. $myvar{'table_definition_cache'}
|
|
. ") is lower than number of tables($nbtables) ";
|
|
push( @adjvars,
|
|
"table_definition_cache("
|
|
. $myvar{'table_definition_cache'} . ") > "
|
|
. $nbtables
|
|
. " or -1 (autosizing if supported)" );
|
|
}
|
|
else {
|
|
goodprint "table_definition_cache("
|
|
. $myvar{'table_definition_cache'}
|
|
. ") is upper than number of tables($nbtables)";
|
|
}
|
|
}
|
|
else {
|
|
infoprint "No table_definition_cache variable found.";
|
|
}
|
|
|
|
# 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";
|
|
if ( mysql_version_ge(8) and mysql_version_le(10) ) {
|
|
infoprint "MyISAM Metrics are disabled on last MySQL versions.";
|
|
return;
|
|
}
|
|
|
|
# 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'} ) ) {
|
|
push( @generalrec,
|
|
"Unable to calculate MyISAM index size on MySQL server < 5.0.0" );
|
|
}
|
|
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
|
|
$myvar{'performance_schema'} = 'OFF'
|
|
unless defined( $myvar{'performance_schema'} );
|
|
unless ( $myvar{'performance_schema'} eq 'ON' ) {
|
|
infoprint "Performance schema is disabled.";
|
|
if ( mysql_version_ge( 5, 6 ) ) {
|
|
push( @generalrec,
|
|
"Performance schema should be activated for better diagnostics"
|
|
);
|
|
push( @adjvars, "performance_schema = ON enable PFS" );
|
|
}
|
|
}
|
|
else {
|
|
if ( mysql_version_le( 5, 5 ) ) {
|
|
push( @generalrec,
|
|
"Performance schema shouldn't be activated for MySQL and MariaDB 5.5 and lower version"
|
|
);
|
|
push( @adjvars, "performance_schema = OFF disable PFS" );
|
|
}
|
|
}
|
|
debugprint "Performance schema is " . $myvar{'performance_schema'};
|
|
infoprint "Memory used by P_S: " . hr_bytes( get_pf_memory() );
|
|
|
|
if ( mysql_version_eq( 10, 0 ) ) {
|
|
push( @generalrec,
|
|
"Performance schema shouldn't be activated for MariaDB 10.0 for performance issue"
|
|
);
|
|
push( @adjvars, "performance_schema = OFF disable PFS" );
|
|
return;
|
|
}
|
|
unless ( grep /^sys$/, select_array("SHOW DATABASES") ) {
|
|
infoprint "Sys schema isn't installed.";
|
|
push( @generalrec,
|
|
"Consider installing Sys schema from https://github.com/mysql/mysql-sys for MySQL"
|
|
) unless ( mysql_version_le( 5, 6 ) );
|
|
push( @generalrec,
|
|
"Consider installing Sys schema from https://github.com/FromDual/mariadb-sys for MariaDB"
|
|
) unless ( mysql_version_eq( 10, 0 ) or mysql_version_eq( 5, 5 ) );
|
|
|
|
return;
|
|
}
|
|
else {
|
|
infoprint "Sys schema is installed.";
|
|
}
|
|
return if ( $opt{pfstat} == 0 or $myvar{'performance_schema'} ne 'ON' );
|
|
|
|
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 deactivated."
|
|
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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per statement latency
|
|
subheaderprint "Performance schema: Top 5 user per statement latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, statement_avg_latency from sys.x\\$user_summary order by statement_avg_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per lock latency
|
|
subheaderprint "Performance schema: Top 5 user per lock latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, lock_latency from sys.x\\$user_summary_by_statement_latency order by lock_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per full scans
|
|
subheaderprint "Performance schema: Top 5 user per nb full scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, full_scans from sys.x\\$user_summary_by_statement_latency order by full_scans desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per row_sent
|
|
subheaderprint "Performance schema: Top 5 user per rows sent";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, rows_sent from sys.x\\$user_summary_by_statement_latency order by rows_sent desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per row modified
|
|
subheaderprint "Performance schema: Top 5 user per rows modified";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, rows_affected from sys.x\\$user_summary_by_statement_latency order by rows_affected desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per io
|
|
subheaderprint "Performance schema: Top 5 user per io";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, file_ios from sys.x\\$user_summary order by file_ios desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top user per io latency
|
|
subheaderprint "Performance schema: Top 5 user per io latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, file_io_latency from sys.x\\$user_summary order by file_io_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per connection
|
|
subheaderprint "Performance schema: Top 5 host per connection";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, total_connections from sys.x\\$host_summary order by total_connections desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery conn(s)";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per statement
|
|
subheaderprint "Performance schema: Top 5 host per statement";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, statements from sys.x\\$host_summary order by statements desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery stmt(s)";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per statement latency
|
|
subheaderprint "Performance schema: Top 5 host per statement latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, statement_avg_latency from sys.x\\$host_summary order by statement_avg_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per lock latency
|
|
subheaderprint "Performance schema: Top 5 host per lock latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, lock_latency from sys.x\\$host_summary_by_statement_latency order by lock_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per full scans
|
|
subheaderprint "Performance schema: Top 5 host per nb full scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, full_scans from sys.x\\$host_summary_by_statement_latency order by full_scans desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per rows sent
|
|
subheaderprint "Performance schema: Top 5 host per rows sent";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, rows_sent from sys.x\\$host_summary_by_statement_latency order by rows_sent desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per rows modified
|
|
subheaderprint "Performance schema: Top 5 host per rows modified";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, rows_affected from sys.x\\$host_summary_by_statement_latency order by rows_affected desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per io
|
|
subheaderprint "Performance schema: Top 5 host per io";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, file_ios from sys.x\\$host_summary order by file_ios desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top 5 host per io latency
|
|
subheaderprint "Performance schema: Top 5 host per io latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, file_io_latency from sys.x\\$host_summary order by file_io_latency desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top IO type order by total io
|
|
subheaderprint "Performance schema: Top IO type order by total io";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select substring(event_name,14), SUM(total)AS total from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top IO type order by total latency
|
|
subheaderprint "Performance schema: Top IO type order by total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select substring(event_name,14), ROUND(SUM(total_latency),1) AS total_latency from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top IO type order by max latency
|
|
subheaderprint "Performance schema: Top IO type order by max latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select substring(event_name,14), MAX(max_latency) as max_latency from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top Stages order by total io
|
|
subheaderprint "Performance schema: Top Stages order by total io";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select substring(event_name,7), SUM(total)AS total from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top Stages order by total latency
|
|
subheaderprint "Performance schema: Top Stages order by total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select substring(event_name,7), ROUND(SUM(total_latency),1) AS total_latency from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top Stages order by avg latency
|
|
subheaderprint "Performance schema: Top Stages order by avg latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select substring(event_name,7), MAX(avg_latency) as avg_latency from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top host per table scans
|
|
subheaderprint "Performance schema: Top 5 host per table scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select host, table_scans from sys.x\\$host_summary order by table_scans desc LIMIT 5'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# InnoDB Buffer Pool by schema
|
|
subheaderprint "Performance schema: InnoDB Buffer Pool by schema";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select object_schema, allocated, data, pages from sys.x\\$innodb_buffer_stats_by_schema ORDER BY pages DESC'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery page(s)";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# InnoDB Buffer Pool by table
|
|
subheaderprint "Performance schema: 40 InnoDB Buffer Pool by table";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select object_schema, object_name, allocated,data, pages from sys.x\\$innodb_buffer_stats_by_table ORDER BY pages DESC LIMIT 40'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery page(s)";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Process per allocated memory
|
|
subheaderprint "Performance schema: Process per time";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, Command AS PROC, time from sys.x\\$processlist ORDER BY time DESC;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# InnoDB Lock Waits
|
|
subheaderprint "Performance schema: InnoDB Lock Waits";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select wait_age_secs, locked_table, locked_type, waiting_query from sys.x\\$innodb_lock_waits order by wait_age_secs DESC;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Threads IO Latency
|
|
subheaderprint "Performance schema: Thread IO Latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select user, total_latency, max_latency from sys.x\\$io_by_thread_by_latency order by total_latency DESC;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# High Cost SQL statements
|
|
subheaderprint "Performance schema: Top 15 Most latency statements";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select LEFT(query, 120), avg_latency from sys.x\\$statement_analysis order by avg_latency desc LIMIT 15'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top 5% slower queries
|
|
subheaderprint "Performance schema: Top 15 slower queries";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select LEFT(query, 120), exec_count from sys.x\\$statements_with_runtimes_in_95th_percentile order by exec_count desc LIMIT 15'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery s";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top 10 nb statement type
|
|
subheaderprint "Performance schema: Top 15 nb statement type";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(total) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top statement by total latency
|
|
subheaderprint "Performance schema: Top 15 statement by total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(total_latency) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top statement by lock latency
|
|
subheaderprint "Performance schema: Top 15 statement by lock latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(lock_latency) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top statement by full scans
|
|
subheaderprint "Performance schema: Top 15 statement by full scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(full_scans) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top statement by rows sent
|
|
subheaderprint "Performance schema: Top 15 statement by rows sent";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(rows_sent) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Top statement by rows modified
|
|
subheaderprint "Performance schema: Top 15 statement by rows modified";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select statement, sum(rows_affected) as total from sys.x\\$host_summary_by_statement_type group by statement order by total desc LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Use temporary tables
|
|
subheaderprint "Performance schema: 15 sample queries using temp table";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select left(query, 120) from sys.x\\$statements_with_temp_tables LIMIT 15'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Unused Indexes
|
|
subheaderprint "Performance schema: Unused indexes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
"select \* from sys.schema_unused_indexes where object_schema not in ('performance_schema')"
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Full table scans
|
|
subheaderprint "Performance schema: Tables with full table scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select * from sys.x\\$schema_tables_with_full_table_scans order by rows_full_scanned DESC'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Latest file IO by latency
|
|
subheaderprint "Performance schema: Latest FILE IO by latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select thread, file, latency, operation from sys.x\\$latest_file_io ORDER BY latency LIMIT 10;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# FILE by IO read bytes
|
|
subheaderprint "Performance schema: FILE by IO read bytes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select file, total_read from sys.x\\$io_global_by_file_by_bytes order by total_read DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# FILE by IO written bytes
|
|
subheaderprint "Performance schema: FILE by IO written bytes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select file, total_written from sys.x\\$io_global_by_file_by_bytes order by total_written DESC LIMIT 15'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# file per IO total latency
|
|
subheaderprint "Performance schema: file per IO total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select file, total_latency from sys.x\\$io_global_by_file_by_latency ORDER BY total_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# file per IO read latency
|
|
subheaderprint "Performance schema: file per IO read latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select file, read_latency from sys.x\\$io_global_by_file_by_latency ORDER BY read_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# file per IO write latency
|
|
subheaderprint "Performance schema: file per IO write latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select file, write_latency from sys.x\\$io_global_by_file_by_latency ORDER BY write_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Event Wait by read bytes
|
|
subheaderprint "Performance schema: Event Wait by read bytes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select event_name, total_read from sys.x\\$io_global_by_wait_by_bytes order by total_read DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# Event Wait by write bytes
|
|
subheaderprint "Performance schema: Event Wait written bytes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select event_name, total_written from sys.x\\$io_global_by_wait_by_bytes order by total_written DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# event per wait total latency
|
|
subheaderprint "Performance schema: event per wait total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select event_name, total_latency from sys.x\\$io_global_by_wait_by_latency ORDER BY total_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# event per wait read latency
|
|
subheaderprint "Performance schema: event per wait read latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select event_name, read_latency from sys.x\\$io_global_by_wait_by_latency ORDER BY read_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# event per wait write latency
|
|
subheaderprint "Performance schema: event per wait write latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select event_name, write_latency from sys.x\\$io_global_by_wait_by_latency ORDER BY write_latency DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
#schema_index_statistics
|
|
# TOP 15 most read index
|
|
subheaderprint "Performance schema: TOP 15 most read indexes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, rows_selected from sys.x\\$schema_index_statistics ORDER BY ROWs_selected DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 most used index
|
|
subheaderprint "Performance schema: TOP 15 most modified indexes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, rows_inserted+rows_updated+rows_deleted AS changes from sys.x\\$schema_index_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high read latency index
|
|
subheaderprint "Performance schema: TOP 15 high read latency index";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, select_latency from sys.x\\$schema_index_statistics ORDER BY select_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high insert latency index
|
|
subheaderprint "Performance schema: TOP 15 most modified indexes";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, insert_latency from sys.x\\$schema_index_statistics ORDER BY insert_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high update latency index
|
|
subheaderprint "Performance schema: TOP 15 high update latency index";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, update_latency from sys.x\\$schema_index_statistics ORDER BY update_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high delete latency index
|
|
subheaderprint "Performance schema: TOP 15 high delete latency index";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name,index_name, delete_latency from sys.x\\$schema_index_statistics ORDER BY delete_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 most read tables
|
|
subheaderprint "Performance schema: TOP 15 most read tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, rows_fetched from sys.x\\$schema_table_statistics ORDER BY ROWs_fetched DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 most used tables
|
|
subheaderprint "Performance schema: TOP 15 most modified tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, rows_inserted+rows_updated+rows_deleted AS changes from sys.x\\$schema_table_statistics ORDER BY rows_inserted+rows_updated+rows_deleted DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high read latency tables
|
|
subheaderprint "Performance schema: TOP 15 high read latency tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, fetch_latency from sys.x\\$schema_table_statistics ORDER BY fetch_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high insert latency tables
|
|
subheaderprint "Performance schema: TOP 15 high insert latency tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, insert_latency from sys.x\\$schema_table_statistics ORDER BY insert_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high update latency tables
|
|
subheaderprint "Performance schema: TOP 15 high update latency tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, update_latency from sys.x\\$schema_table_statistics ORDER BY update_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
# TOP 15 high delete latency tables
|
|
subheaderprint "Performance schema: TOP 15 high delete latency tables";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select table_schema, table_name, delete_latency from sys.x\\$schema_table_statistics ORDER BY delete_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Table not using InnoDB buffer";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
' Select table_schema, table_name from sys.x\\$schema_table_statistics_with_buffer where innodb_buffer_allocated IS NULL;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Top 15 Tables using InnoDB buffer";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select table_schema,table_name,innodb_buffer_allocated from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Top 15 Tables with InnoDB buffer free";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select table_schema,table_name,innodb_buffer_free from sys.x\\$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 deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Top 15 Most executed queries";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), exec_count from sys.x\\$statement_analysis order by exec_count DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: Latest SQL queries in errors or warnings";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select LEFT(query, 120), last_seen from sys.x\\$statements_with_errors_or_warnings ORDER BY last_seen LIMIT 40;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Top 20 queries with full table scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), exec_count from sys.x\\$statements_with_full_table_scans order BY exec_count DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Last 50 queries with full table scans";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), last_seen from sys.x\\$statements_with_full_table_scans order BY last_seen DESC LIMIT 50;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 reader queries (95% percentile)";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), rows_sent from sys.x\\$statements_with_runtimes_in_95th_percentile ORDER BY ROWs_sent DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 most row look queries (95% percentile)";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), rows_examined AS search from sys.x\\$statements_with_runtimes_in_95th_percentile ORDER BY rows_examined DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 total latency queries (95% percentile)";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), total_latency AS search from sys.x\\$statements_with_runtimes_in_95th_percentile ORDER BY total_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 max latency queries (95% percentile)";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), max_latency AS search from sys.x\\$statements_with_runtimes_in_95th_percentile ORDER BY max_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 average latency queries (95% percentile)";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), avg_latency AS search from sys.x\\$statements_with_runtimes_in_95th_percentile ORDER BY avg_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Top 20 queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), exec_count from sys.x\\$statements_with_sorting order BY exec_count DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Last 50 queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), last_seen from sys.x\\$statements_with_sorting order BY last_seen DESC LIMIT 50;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 row sorting queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), rows_sorted from sys.x\\$statements_with_sorting ORDER BY ROWs_sorted DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 total latency queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), total_latency AS search from sys.x\\$statements_with_sorting ORDER BY total_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 merge queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), sort_merge_passes AS search from sys.x\\$statements_with_sorting ORDER BY sort_merge_passes DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 average sort merges queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), avg_sort_merges AS search from sys.x\\$statements_with_sorting ORDER BY avg_sort_merges DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 scans queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), sorts_using_scans AS search from sys.x\\$statements_with_sorting ORDER BY sorts_using_scans DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 range queries with sort";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), sort_using_range AS search from sys.x\\$statements_with_sorting ORDER BY sort_using_range DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
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 $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), exec_count from sys.x\\$statements_with_temp_tables order BY exec_count DESC LIMIT 20;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: Last 50 queries with temp table";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), last_seen from sys.x\\$statements_with_temp_tables order BY last_seen DESC LIMIT 50;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint
|
|
"Performance schema: TOP 15 total latency queries with temp table";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select db, LEFT(query, 120), total_latency AS search from sys.x\\$statements_with_temp_tables ORDER BY total_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 queries with temp table to disk";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select db, LEFT(query, 120), disk_tmp_tables from sys.x\\$statements_with_temp_tables ORDER BY disk_tmp_tables DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
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 $lQuery (
|
|
select_array(
|
|
'use sys;select event_class, total from sys.x\\$wait_classes_global_by_latency ORDER BY total DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 30 events by number";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select events, total from sys.x\\$waits_global_by_latency ORDER BY total DESC LIMIT 30;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 class events by total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select event_class, total_latency from sys.x\\$wait_classes_global_by_latency ORDER BY total_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 30 events by total latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'use sys;select events, total_latency from sys.x\\$waits_global_by_latency ORDER BY total_latency DESC LIMIT 30;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 15 class events by max latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select event_class, max_latency from sys.x\\$wait_classes_global_by_latency ORDER BY max_latency DESC LIMIT 15;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
subheaderprint "Performance schema: TOP 30 events by max latency";
|
|
$nbL = 1;
|
|
for my $lQuery (
|
|
select_array(
|
|
'select events, max_latency from sys.x\\$waits_global_by_latency ORDER BY max_latency DESC LIMIT 30;'
|
|
)
|
|
)
|
|
{
|
|
infoprint " +-- $nbL: $lQuery";
|
|
$nbL++;
|
|
}
|
|
infoprint "No information found or indicators deactivated."
|
|
if ( $nbL == 1 );
|
|
|
|
}
|
|
|
|
# Recommendations for Aria Engine
|
|
sub mariadb_aria {
|
|
subheaderprint "Aria Metrics";
|
|
|
|
# Aria
|
|
if ( !defined $myvar{'have_aria'} ) {
|
|
infoprint "Aria Storage Engine not available.";
|
|
return;
|
|
}
|
|
if ( $myvar{'have_aria'} ne "YES" ) {
|
|
infoprint "Aria Storage Engine is disabled.";
|
|
return;
|
|
}
|
|
infoprint "Aria Storage Engine is enabled.";
|
|
|
|
# Aria pagecache
|
|
if ( !defined( $mycalc{'total_aria_indexes'} ) ) {
|
|
push( @generalrec,
|
|
"Unable to calculate Aria index size on MySQL server" );
|
|
}
|
|
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.";
|
|
infoprint "Note that MariaDB 10.2 makes use of InnoDB, not XtraDB."
|
|
|
|
# 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 do 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 do 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 "Connect is enabled.";
|
|
|
|
# All is to do here
|
|
}
|
|
|
|
# Perl trim function to remove whitespace from the start and end of the string
|
|
sub trim {
|
|
my $string = shift;
|
|
return "" unless defined($string);
|
|
$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'};
|
|
my $wsrep_slave_threads = $myvar{'wsrep_slave_threads'};
|
|
push @galera_options, ' wsrep_slave_threads = ' . $wsrep_slave_threads;
|
|
@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 = hr_raw( 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];
|
|
return 0 unless defined $memValue;
|
|
$memValue =~ s/.*=\s*(.+)$/$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};
|
|
}
|
|
if ( not defined( $myvar{'wsrep_on'} ) or $myvar{'wsrep_on'} ne "ON" ) {
|
|
infoprint "Galera is disabled.";
|
|
return;
|
|
}
|
|
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=();
|
|
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"
|
|
);
|
|
|
|
infoprint "CPU core detected : " . (cpu_cores);
|
|
infoprint "wsrep_slave_threads: " . get_wsrep_option('wsrep_slave_threads');
|
|
|
|
if ( get_wsrep_option('wsrep_slave_threads') > ( (cpu_cores) * 4 )
|
|
or get_wsrep_option('wsrep_slave_threads') < ( (cpu_cores) * 2 ) )
|
|
{
|
|
badprint
|
|
"wsrep_slave_threads is not equal to 2, 3 or 4 times number of CPU(s)";
|
|
push @adjvars, "wsrep_slave_threads = " . ( (cpu_cores) * 4 );
|
|
}
|
|
else {
|
|
goodprint
|
|
"wsrep_slave_threads is equal to 2, 3 or 4 times number of CPU(s)";
|
|
}
|
|
|
|
if ( get_wsrep_option('wsrep_slave_threads') > 1 ) {
|
|
infoprint
|
|
"wsrep parallel slave can cause frequent inconsistency crash.";
|
|
push @adjvars,
|
|
"Set wsrep_slave_threads to 1 in case of HA_ERR_FOUND_DUPP_KEY crash on slave";
|
|
|
|
# check options for parallel slave
|
|
if ( get_wsrep_option('wsrep_slave_FK_checks') eq "OFF" ) {
|
|
badprint "wsrep_slave_FK_checks is off with parallel slave";
|
|
push @adjvars,
|
|
"wsrep_slave_FK_checks should be ON when using parallel slave";
|
|
}
|
|
|
|
# wsrep_slave_UK_checks seems useless in MySQL source code
|
|
if ( $myvar{'innodb_autoinc_lock_mode'} != 2 ) {
|
|
badprint
|
|
"innodb_autoinc_lock_mode is incorrect with parallel slave";
|
|
push @adjvars,
|
|
"innodb_autoinc_lock_mode should be 2 when using parallel slave";
|
|
}
|
|
}
|
|
|
|
if ( get_wsrep_option('gcs.fc_limit') != $myvar{'wsrep_slave_threads'} * 5 )
|
|
{
|
|
badprint "gcs.fc_limit should be equal to 5 * wsrep_slave_threads (=".($myvar{'wsrep_slave_threads'} * 5). ")";
|
|
push @adjvars, "gcs.fc_limit= wsrep_slave_threads * 5 (=".($myvar{'wsrep_slave_threads'} * 5). ")";
|
|
}
|
|
else {
|
|
goodprint "gcs.fc_limit is equal to 5 * wsrep_slave_threads ( =".get_wsrep_option('gcs.fc_limit') .")";
|
|
}
|
|
|
|
if ( get_wsrep_option('gcs.fc_factor') != 0.8 ) {
|
|
badprint "gcs.fc_factor should be equal to 0.8 (=".get_wsrep_option('gcs.fc_factor').")";
|
|
push @adjvars, "gcs.fc_factor=0.8";
|
|
}
|
|
else {
|
|
goodprint "gcs.fc_factor is equal to 0.8";
|
|
}
|
|
if ( get_wsrep_option('wsrep_flow_control_paused') > 0.02 ) {
|
|
badprint "Fraction of time node pause flow control > 0.02";
|
|
}
|
|
else {
|
|
goodprint
|
|
"Flow control fraction seems to be OK (wsrep_flow_control_paused<=0.02)";
|
|
}
|
|
|
|
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.";
|
|
push @generalrec, "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.*"
|
|
and trim( $myvar{'wsrep_sst_method'} ) !~ "^mariabackup" )
|
|
{
|
|
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" )
|
|
{
|
|
infoprint "InnoDB is disabled.";
|
|
if ( mysql_version_ge( 5, 5 ) ) {
|
|
my $defengine = 'InnoDB';
|
|
$defengine = $myvar{'default_storage_engine'}
|
|
if defined( $myvar{'default_storage_engine'} );
|
|
badprint
|
|
"InnoDB Storage engine is disabled. $defengine is the default storage engine"
|
|
if $defengine eq 'InnoDB';
|
|
infoprint
|
|
"InnoDB Storage engine is disabled. $defengine is the default storage engine"
|
|
if $defengine ne 'InnoDB';
|
|
}
|
|
return;
|
|
}
|
|
infoprint "InnoDB is enabled.";
|
|
if ( !defined $enginestats{'InnoDB'} ) {
|
|
if ( $opt{skipsize} eq 1 ) {
|
|
infoprint "Skipped due to --skipsize option";
|
|
return;
|
|
}
|
|
badprint "No tables are Innodb";
|
|
$enginestats{'InnoDB'} = 0;
|
|
}
|
|
|
|
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'} );
|
|
}
|
|
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'} )
|
|
. "("
|
|
. $mycalc{'innodb_log_size_pct'}
|
|
. " % of buffer pool)";
|
|
}
|
|
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 Pool 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 Pool 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( $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 to 25%";
|
|
push(
|
|
@adjvars,
|
|
"innodb_log_file_size should be (="
|
|
. hr_bytes_rnd(
|
|
$myvar{'innodb_buffer_pool_size'} /
|
|
$myvar{'innodb_log_files_in_group'} / 4
|
|
)
|
|
. ") if possible, so InnoDB total log files size equals to 25% of buffer pool size."
|
|
);
|
|
if ( mysql_version_le( 5, 6, 2 ) ) {
|
|
push( @generalrec,
|
|
"For MySQL 5.6.2 and lower, Max combined innodb_log_file_size should have a ceiling of (4096MB / log files in group) - 1MB."
|
|
);
|
|
}
|
|
push( @generalrec,
|
|
"Before changing innodb_log_file_size and/or innodb_log_files_in_group read this: https://bit.ly/2TcGgtU"
|
|
);
|
|
}
|
|
else {
|
|
goodprint "Ratio 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 to 25%";
|
|
}
|
|
|
|
# InnoDB Buffer Pool Instances (MySQL 5.6.6+)
|
|
if ( not mysql_version_ge( 10, 5 )
|
|
and 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 Pool Size > 1Go
|
|
if ( $myvar{'innodb_buffer_pool_size'} > 1024 * 1024 * 1024 ) {
|
|
|
|
# InnoDB Buffer Pool Size / 1Go = InnoDB Buffer Pool Instances limited to 64 max.
|
|
|
|
# InnoDB Buffer Pool 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 Pool 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 efficiency
|
|
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};
|
|
}
|
|
|
|
sub check_metadata_perf {
|
|
subheaderprint "Analysis Performance Metrics";
|
|
if ( defined $myvar{'innodb_stats_on_metadata'} ) {
|
|
infoprint "innodb_stats_on_metadata: "
|
|
. $myvar{'innodb_stats_on_metadata'};
|
|
if ( $myvar{'innodb_stats_on_metadata'} eq 'ON' ) {
|
|
badprint "Stat are updated during querying INFORMATION_SCHEMA.";
|
|
push @adjvars, "SET innodb_stats_on_metadata = OFF";
|
|
|
|
#Disabling innodb_stats_on_metadata
|
|
select_one("SET GLOBAL innodb_stats_on_metadata = OFF;");
|
|
return 1;
|
|
}
|
|
}
|
|
goodprint "No stat updates during querying INFORMATION_SCHEMA.";
|
|
return 0;
|
|
}
|
|
|
|
# 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;
|
|
}
|
|
|
|
@dblist = select_array(
|
|
"SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME NOT IN ( 'mysql', 'performance_schema', 'information_schema', 'sys' );"
|
|
);
|
|
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', 'performance_schema', 'information_schema', 'sys' );"
|
|
);
|
|
infoprint "All User 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 $opt{'json'} );
|
|
|
|
foreach (@dblist) {
|
|
my @dbinfo = split /\s/,
|
|
select_one(
|
|
"SELECT TABLE_SCHEMA, SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH), COUNT(DISTINCT ENGINE),COUNT(TABLE_NAME),COUNT(DISTINCT(TABLE_COLLATION)),COUNT(DISTINCT(ENGINE)) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_' 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 database columns
|
|
sub mysql_tables {
|
|
return if ( $opt{tbstat} == 0 );
|
|
|
|
subheaderprint "Table Column Metrics";
|
|
unless ( mysql_version_ge( 5, 5 ) ) {
|
|
infoprint
|
|
"Skip Database metrics from information schema missing in this version";
|
|
return;
|
|
}
|
|
if ( mysql_version_ge(8) and not mysql_version_eq(10) ) {
|
|
infoprint
|
|
"MySQL and Percona version 8 and greater have remove PROCEDURE ANALYSE feature";
|
|
}
|
|
foreach (@dblist) {
|
|
my $dbname = $_;
|
|
next unless defined $_;
|
|
infoprint "Database: " . $_ . "";
|
|
my @dbtable = select_array(
|
|
"SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA='$dbname' AND TABLE_TYPE='BASE TABLE' ORDER BY TABLE_NAME"
|
|
);
|
|
foreach (@dbtable) {
|
|
my $tbname = $_;
|
|
infoprint " +-- TABLE: $tbname";
|
|
my @tbcol = select_array(
|
|
"SELECT COLUMN_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA='$dbname' AND TABLE_NAME='$tbname'"
|
|
);
|
|
foreach (@tbcol) {
|
|
my $ctype = select_one(
|
|
"SELECT COLUMN_TYPE FROM information_schema.COLUMNS WHERE TABLE_SCHEMA='$dbname' AND TABLE_NAME='$tbname' AND COLUMN_NAME='$_' "
|
|
);
|
|
my $isnull = select_one(
|
|
"SELECT IS_NULLABLE FROM information_schema.COLUMNS WHERE TABLE_SCHEMA='$dbname' AND TABLE_NAME='$tbname' AND COLUMN_NAME='$_' "
|
|
);
|
|
|
|
infoprint " +-- Column $tbname.$_:";
|
|
my $current_type =
|
|
uc($ctype) . ( $isnull eq 'NO' ? " NOT NULL" : "" );
|
|
my $optimal_type = '';
|
|
$optimal_type = select_str_g( "Optimal_fieldtype",
|
|
"SELECT \\`$_\\` FROM \\`$dbname\\`.\\`$tbname\\` PROCEDURE ANALYSE(1000)"
|
|
) unless ( mysql_version_ge(8) and not mysql_version_eq(10) );
|
|
if ( $optimal_type eq '' ) {
|
|
infoprint " Current Fieldtype: $current_type";
|
|
|
|
#infoprint " Optimal Fieldtype: Not available";
|
|
}
|
|
elsif ( $current_type ne $optimal_type
|
|
and $current_type !~ /.*DATETIME.*/
|
|
and $current_type !~ /.*TIMESTAMP.*/ )
|
|
{
|
|
infoprint " Current Fieldtype: $current_type";
|
|
if ( $optimal_type =~ /.*ENUM\(.*/ ) {
|
|
$optimal_type = "ENUM( ... )";
|
|
}
|
|
infoprint " Optimal Fieldtype: $optimal_type ";
|
|
if ( $optimal_type !~ /.*ENUM\(.*/ ) {
|
|
badprint
|
|
"Consider changing type for column $_ in table $dbname.$tbname";
|
|
push( @generalrec,
|
|
"ALTER TABLE \`$dbname\`.\`$tbname\` MODIFY \`$_\` $optimal_type;"
|
|
);
|
|
}
|
|
|
|
}
|
|
else {
|
|
goodprint "$dbname.$tbname ($_) type: $current_type";
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
# 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 " +-- COLUMN : " . $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] }{'Column'} = $info[0];
|
|
$result{'Indexes'}{ $info[1] }{'Sequence number'} = $info[2];
|
|
$result{'Indexes'}{ $info[1] }{'Number of column'} = $info[3];
|
|
$result{'Indexes'}{ $info[1] }{'Cardinality'} = $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' );
|
|
|
|
$selIdxReq = <<'ENDSQL';
|
|
SELECT CONCAT(CONCAT(object_schema,'.'),object_name) AS 'table', index_name
|
|
FROM performance_schema.table_io_waits_summary_by_index_usage
|
|
WHERE index_name IS NOT NULL
|
|
AND count_star =0
|
|
AND index_name <> 'PRIMARY'
|
|
AND object_schema NOT IN ( 'mysql', 'performance_schema', 'information_schema' )
|
|
ORDER BY count_star, object_schema, object_name;
|
|
ENDSQL
|
|
@idxinfo = select_array($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 <major\@mhtx.net>\n"
|
|
. " >> Bug reports, feature requests, and downloads at http://mysqltuner.pl/\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
|
|
$templateModel = <<'END_TEMPLATE';
|
|
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>MySQLTuner Report</title>
|
|
<meta charset="UTF-8">
|
|
</head>
|
|
<body>
|
|
|
|
<h1>Result output</h1>
|
|
<pre>
|
|
{$data}
|
|
</pre>
|
|
|
|
</body>
|
|
</html>
|
|
END_TEMPLATE
|
|
}
|
|
|
|
sub dump_result {
|
|
debugprint Dumper( \%result ) if ( $opt{'debug'} );
|
|
debugprint "HTML REPORT: $opt{'reportfile'}";
|
|
|
|
if ( $opt{'reportfile'} ne 0 ) {
|
|
eval { require Text::Template };
|
|
eval { require JSON };
|
|
if ($@) {
|
|
badprint "Text::Template Module is needed.";
|
|
die "Text::Template Module is needed.";
|
|
}
|
|
|
|
my $json = JSON->new->allow_nonref;
|
|
my $json_text = $json->pretty->encode( \%result );
|
|
my %vars = (
|
|
'data' => \%result,
|
|
'debug' => $json_text,
|
|
);
|
|
my $template;
|
|
{
|
|
no warnings 'once';
|
|
$template = Text::Template->new(
|
|
TYPE => 'STRING',
|
|
PREPEND => q{;},
|
|
SOURCE => $templateModel,
|
|
DELIMITERS => [ '[%', '%]' ]
|
|
) 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";
|
|
return 1;
|
|
}
|
|
|
|
my $json = JSON->new->allow_nonref;
|
|
print $json->utf8(1)->pretty( ( $opt{'prettyjson'} ? 1 : 0 ) )
|
|
->encode( \%result );
|
|
|
|
if ( $opt{'outputfile'} ne 0 ) {
|
|
unlink $opt{'outputfile'} if ( -e $opt{'outputfile'} );
|
|
open my $fh, q(>), $opt{'outputfile'}
|
|
or die
|
|
"Unable to open $opt{'outputfile'} in write mode. please check permissions for this file or directory";
|
|
print $fh $json->utf8(1)->pretty( ( $opt{'prettyjson'} ? 1 : 0 ) )
|
|
->encode( \%result );
|
|
close $fh;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub which {
|
|
my $prog_name = shift;
|
|
my $path_string = shift;
|
|
my @path_array = split /:/, $ENV{'PATH'};
|
|
|
|
for my $path (@path_array) {
|
|
return "$path/$prog_name" if ( -x "$path/$prog_name" );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# BEGIN 'MAIN'
|
|
# ---------------------------------------------------------------------------
|
|
headerprint; # Header Print
|
|
|
|
validate_tuner_version; # Check last version
|
|
mysql_setup; # Gotta login first
|
|
debugprint "MySQL FINAL Client : $mysqlcmd $mysqllogin";
|
|
debugprint "MySQL Admin FINAL Client : $mysqladmincmd $mysqllogin";
|
|
|
|
#exit(0);
|
|
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_recommendations; # check log file content
|
|
check_storage_engines; # Show enabled storage engines
|
|
|
|
check_metadata_perf; # Show parameter impacting performance during analysis
|
|
mysql_databases; # Show informations about databases
|
|
mysql_tables; # Show informations about table column
|
|
|
|
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 MariaDB ThreadPool stats
|
|
mysql_myisam; # Print MyISAM stats
|
|
mysql_innodb; # Print InnoDB stats
|
|
mariadb_aria; # Print MariaDB Aria 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 1.7.24 - 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 AUTHENTICATION
|
|
|
|
--host <hostname> Connect to a remote host to perform tests (default: localhost)
|
|
--socket <socket> Use a different socket for a local connection
|
|
--port <port> Port to use for connection (default: 3306)
|
|
--user <username> Username to use for authentication
|
|
--userenv <envvar> Name of env variable which contains username to use for authentication
|
|
--pass <password> Password to use for authentication
|
|
--passenv <envvar> Name of env variable which contains password to use for authentication
|
|
--ssl-ca <path> Path to public key
|
|
--mysqladmin <path> Path to a custom mysqladmin executable
|
|
--mysqlcmd <path> Path to a custom mysql executable
|
|
--defaults-file <path> Path to a custom .my.cnf
|
|
--server-log <path> Path to explict log file
|
|
|
|
=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 <size> Amount of RAM installed in megabytes
|
|
--forceswap <size> Amount of swap memory configured in megabytes
|
|
--passwordfile <path> Path to a password file list(one password by line)
|
|
|
|
=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
|
|
--noprocess Consider no other process is running
|
|
--dbstat Print database information
|
|
--nodbstat Don't Print database information
|
|
--tbstat Print table information
|
|
--notbstat Don't Print table information
|
|
--idxstat Print index information
|
|
--noidxstat Don't Print index information
|
|
--sysstat Print system information
|
|
--nosysstat Don't Print system information
|
|
--pfstat Print Performance schema
|
|
--nopfstat Don't Print Performance schema
|
|
--verbose Prints out all options (default: no verbose, dbstat, idxstat, sysstat, tbstat, pfstat)
|
|
--bannedports Ports banned separated by comma(,)
|
|
--maxportallowed Number of ports opened allowed on this hosts
|
|
--cvefile <path> 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> Path to a output txt file
|
|
--reportfile <path> Path to a report txt file
|
|
--template <path> Path to a template file
|
|
|
|
|
|
=head1 PERLDOC
|
|
|
|
You can find documentation for this module with the perldoc command.
|
|
|
|
perldoc mysqltuner
|
|
|
|
=head2 INTERNALS
|
|
|
|
L<https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md>
|
|
|
|
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.pl/
|
|
|
|
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<https://github.com/major/MySQLTuner-perl>
|
|
|
|
git clone https://github.com/major/MySQLTuner-perl.git
|
|
|
|
=head1 COPYRIGHT AND LICENSE
|
|
|
|
Copyright (C) 2006-2020 Major Hayden - major@mhtx.net
|
|
|
|
For the latest updates, please visit http://mysqltuner.pl/
|
|
|
|
Git repository available at https://github.com/major/MySQLTuner-perl
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
=cut
|
|
|
|
# Local variables:
|
|
# indent-tabs-mode: t
|
|
# cperl-indent-level: 8
|
|
# perl-indent-level: 8
|
|
# End:
|