mirror of
https://github.com/major/MySQLTuner-perl.git
synced 2024-09-21 07:47:08 +00:00
commit
e0e2168f06
3
.gitignore
vendored
3
.gitignore
vendored
@ -14,4 +14,5 @@ golang/prog-*
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.vscode
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test_db/**
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result*
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result_*
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result_*
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sql/*.sql
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@ -229,6 +229,12 @@ Of course, you can add the execute bit (`chmod +x mysqltuner.pl`) so you can exe
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__Usage:__ Minimal usage remotely
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In previous version, --forcemem shoud be set manually, in order to be able to run an MT analysis
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Since 2.1.10, memory and swap are defined to 1Gb by default.
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If you want a more accurate value according to your remote server, feel free to setup --forcemem and --forceswap to real RAM value
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```bash
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perl mysqltuner.pl --host targetDNS_IP --user admin_user --pass admin_password
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```
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296
mysqltuner.pl
296
mysqltuner.pl
@ -1,5 +1,5 @@
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#!/usr/bin/env perl
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# mysqltuner.pl - Version 2.1.9
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# mysqltuner.pl - Version 2.1.11
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# High Performance MySQL Tuning Script
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# Copyright (C) 2006-2023 Major Hayden - major@mhtx.net
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# Copyright (C) 2015-2023 Jean-Marie Renouard - jmrenouard@gmail.com
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@ -57,7 +57,7 @@ use Cwd 'abs_path';
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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 = "2.1.9";
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my $tunerversion = "2.1.11";
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my ( @adjvars, @generalrec );
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# Set defaults
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@ -69,8 +69,8 @@ my %opt = (
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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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"forcemem" => 1024,
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"forceswap" => 1024,
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"host" => 0,
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"socket" => 0,
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"port" => 0,
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@ -111,7 +111,9 @@ my %opt = (
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"defaults-extra-file" => '',
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"protocol" => '',
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"dumpdir" => '',
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"feature" => ''
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"feature" => '',
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"dbgpattern" => '',
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"defaultarch" => 64
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);
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# Gather the options from the command line
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@ -144,7 +146,8 @@ GetOptions(
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'idxstat', 'noidxstat',
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'server-log=s', 'protocol=s',
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'defaults-extra-file=s', 'dumpdir=s',
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'feature=s'
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'feature=s', 'dbgpattern=s',
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'defaultarch=i'
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)
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or pod2usage(
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-exitval => 1,
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@ -200,6 +203,7 @@ if ( $opt{dumpdir} ne '' ) {
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$basic_password_files = "/usr/share/mysqltuner/basic_passwords.txt"
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unless -f "$basic_password_files";
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$opt{dbgpattern}='.*' if ($opt{dbgpattern} eq '' );
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# check if we need to enable verbose mode
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if ( $opt{feature} ne '' ) { $opt{verbose} = 1; }
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if ( $opt{verbose} ) {
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@ -1261,12 +1265,18 @@ sub arr2hash {
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my $href = shift;
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my $harr = shift;
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my $sep = shift;
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my $key='';
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my $val='';
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$sep = '\s' unless defined($sep);
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foreach my $line (@$harr) {
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next if ( $line =~ m/^\*\*\*\*\*\*\*/ );
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$line =~ /([a-zA-Z_]*)\s*$sep\s*(.*)/;
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$$href{$1} = $2;
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debugprint "V: $1 = $2";
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$key = $1;
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$val = $2;
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$$href{$key} = $val;
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debugprint " * $key = $val" if $key =~ /$opt{dbgpattern}/i;
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}
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}
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@ -2422,6 +2432,8 @@ my ($arch);
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sub check_architecture {
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if ( is_remote eq 1 ) {
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infoprint "Skipping architecture check on remote host";
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infoprint "Using default $opt{defaultarch} bits as target architecture";
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$arch = $opt{defaultarch};
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return;
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}
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if ( `uname` =~ /SunOS/ && `isainfo -b` =~ /64/ ) {
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@ -2563,6 +2575,7 @@ sub check_storage_engines {
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$result{'Engine'}{$engine}{'Data Size'} = $dsize;
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$result{'Engine'}{$engine}{'Index Size'} = $isize;
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}
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#print Dumper( \%enginestats ) if $opt{debug};
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my $not_innodb = '';
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if ( not defined $result{'Variables'}{'innodb_file_per_table'} ) {
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$not_innodb = "AND NOT ENGINE='InnoDB'";
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@ -2607,7 +2620,7 @@ sub check_storage_engines {
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$fragtables = 0;
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foreach my $tbl (@tblist) {
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#debugprint "Data dump " . Dumper(@$tbl);
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#debugprint "Data dump " . Dumper(@$tbl) if $opt{debug};
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my ( $engine, $size, $datafree ) = @$tbl;
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next if $engine eq 'NULL' or not defined($engine);
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$size = 0 if $size eq 'NULL' or not defined($size);
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@ -3766,6 +3779,48 @@ sub mysql_stats {
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# Recommendations for MyISAM
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sub mysql_myisam {
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subheaderprint "MyISAM Metrics";
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my $nb_myisam_tables = select_one(
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"SELECT COUNT(*) FROM information_schema.TABLES WHERE ENGINE='MyISAM' and TABLE_SCHEMA NOT IN ('mysql','information_schema','performance_schema')");
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push (@generalrec, "MyISAM engine is deprecated, consider migrating to InnoDB") if $nb_myisam_tables > 0;
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if ($nb_myisam_tables > 0) {
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badprint "Consider migrating $nb_myisam_tables followning tables to InnoDB:";
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my $sql_mig="";
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for my $myisam_table ( select_array("SELECT CONCAT(TABLE_SCHEMA, '.', TABLE_NAME) FROM information_schema.TABLES WHERE ENGINE='MyISAM' and TABLE_SCHEMA NOT IN ('mysql','information_schema','performance_schema')" )) {
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$sql_mig="${sql_mig}-- InnoDB migration for $myisam_table\nALTER TABLE $myisam_table ENGINE=InnoDB;\n\n";
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infoprint "* InnoDB migration request for $myisam_table Table: ALTER TABLE $myisam_table ENGINE=InnoDB;";
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}
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if ( -d "$opt{dumpdir}" ) {
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my $file_mig="$opt{dumpdir}/migrate_myisam_to_innodb.sql";
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open (FILE, ">$file_mig") or die "Can't open $file_mig: $!";
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print FILE $sql_mig;
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close FILE;
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infoprint "Migration script saved to $file_mig";
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}
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}
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infoprint("General MyIsam metrics:");
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infoprint " +-- Total MyISAM Tables : $nb_myisam_tables";
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infoprint " +-- Total MyISAM indexes : "
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. hr_bytes( $mycalc{'total_myisam_indexes'} ) if defined($mycalc{'total_myisam_indexes'});
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infoprint " +-- KB Size :" . hr_bytes($myvar{'key_buffer_size'});
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infoprint " +-- KB Used Size :" .hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'} );
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infoprint " +-- KB used :" . $mycalc{'pct_key_buffer_used'} . "%";
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infoprint " +-- Read KB hit rate: $mycalc{'pct_keys_from_mem'}% ("
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. hr_num( $mystat{'Key_read_requests'} )
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. " cached / "
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. hr_num( $mystat{'Key_reads'} )
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. " reads)";
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infoprint " +-- Write KB hit rate: $mycalc{'pct_wkeys_from_mem'}% ("
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. hr_num( $mystat{'Key_write_requests'} )
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. " cached / "
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. hr_num( $mystat{'Key_writes'} )
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. " writes)";
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if ( $nb_myisam_tables == 0 ) {
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infoprint "No MyISAM table(s) detected ....";
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return;
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}
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if ( mysql_version_ge(8) and mysql_version_le(10) ) {
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infoprint "MyISAM Metrics are disabled since MySQL 8.0.";
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if ( $myvar{'key_buffer_size'} > 0 ) {
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@ -3775,130 +3830,119 @@ sub mysql_myisam {
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}
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return;
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}
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my $nb_myisam_tables = select_one(
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"SELECT COUNT(*) FROM information_schema.TABLES WHERE ENGINE='MyISAM'");
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if ( $nb_myisam_tables == 0 ) {
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infoprint "No MyISAM table(s) detected ....";
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if ( !defined( $mycalc{'total_myisam_indexes'} ) ) {
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badprint "Unable to calculate MyISAM index size on MySQL server < 5.0.0";
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push( @generalrec,
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"Unable to calculate MyISAM index size on MySQL server < 5.0.0" );
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return;
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}
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# Key buffer usage
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if ( $mycalc{'pct_key_buffer_used'} > 0 ) {
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if ( $mycalc{'pct_key_buffer_used'} < 90 ) {
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badprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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. hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'}
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)
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. " used / "
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. hr_bytes( $myvar{'key_buffer_size'} )
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. " cache)";
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push(
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@adjvars,
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"key_buffer_size (\~ "
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. hr_num(
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$myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'}
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/ 100
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)
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. ")"
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);
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}
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else {
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goodprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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. hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'}
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)
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. " used / "
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. hr_bytes( $myvar{'key_buffer_size'} )
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. " cache)";
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}
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}
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else {
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if ( $mycalc{'pct_key_buffer_used'} == 0 ) {
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# No queries have run that would use keys
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debugprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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infoprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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. hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'} )
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. " used / "
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. hr_bytes( $myvar{'key_buffer_size'} )
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. " cache)";
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infoprint "No SQL statement based on MyISAM table(s) detected ....";
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return
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}
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# Key buffer
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if ( !defined( $mycalc{'total_myisam_indexes'} ) ) {
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push( @generalrec,
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"Unable to calculate MyISAM index size on MySQL server < 5.0.0" );
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# Key buffer usage
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if ( $mycalc{'pct_key_buffer_used'} < 90 ) {
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badprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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. hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'}
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)
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. " used / "
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. hr_bytes( $myvar{'key_buffer_size'} )
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. " cache)";
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push(
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@adjvars,
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"key_buffer_size (\~ "
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. hr_num(
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$myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'}
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/ 100
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)
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. ")"
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);
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} else {
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goodprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% ("
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. hr_bytes( $myvar{'key_buffer_size'} -
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$mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'}
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)
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. " used / "
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. hr_bytes( $myvar{'key_buffer_size'} )
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. " cache)";
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}
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# Key buffer size / total MyISAM indexes
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if ( $myvar{'key_buffer_size'} < $mycalc{'total_myisam_indexes'}
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&& $mycalc{'pct_keys_from_mem'} < 95 )
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{
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badprint "Key buffer size / total MyISAM indexes: "
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. hr_bytes( $myvar{'key_buffer_size'} ) . "/"
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. hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
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push( @adjvars,
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"key_buffer_size (> "
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. hr_bytes( $mycalc{'total_myisam_indexes'} )
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. ")" );
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}
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else {
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if ( $myvar{'key_buffer_size'} < $mycalc{'total_myisam_indexes'}
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&& $mycalc{'pct_keys_from_mem'} < 95 )
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{
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badprint "Key buffer size / total MyISAM indexes: "
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. hr_bytes( $myvar{'key_buffer_size'} ) . "/"
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. hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
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push( @adjvars,
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"key_buffer_size (> "
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. hr_bytes( $mycalc{'total_myisam_indexes'} )
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. ")" );
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goodprint "Key buffer size / total MyISAM indexes: "
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. hr_bytes( $myvar{'key_buffer_size'} ) . "/"
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. hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
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}
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if ( $mystat{'Key_read_requests'} > 0 ) {
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if ( $mycalc{'pct_keys_from_mem'} < 95 ) {
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badprint
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"Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% ("
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. hr_num( $mystat{'Key_read_requests'} )
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. " cached / "
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. hr_num( $mystat{'Key_reads'} )
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. " reads)";
|
||||
}
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||||
else {
|
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goodprint "Key buffer size / total MyISAM indexes: "
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. hr_bytes( $myvar{'key_buffer_size'} ) . "/"
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. hr_bytes( $mycalc{'total_myisam_indexes'} ) . "";
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goodprint
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"Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% ("
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. hr_num( $mystat{'Key_read_requests'} )
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. " cached / "
|
||||
. hr_num( $mystat{'Key_reads'} )
|
||||
. " reads)";
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||||
}
|
||||
if ( $mystat{'Key_read_requests'} > 0 ) {
|
||||
if ( $mycalc{'pct_keys_from_mem'} < 95 ) {
|
||||
badprint
|
||||
"Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% ("
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||||
. 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
|
||||
# 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)";
|
||||
}
|
||||
}
|
||||
|
||||
@ -5650,7 +5694,7 @@ sub get_wsrep_options {
|
||||
@galera_options = remove_cr @galera_options;
|
||||
@galera_options = remove_empty @galera_options;
|
||||
|
||||
#debugprint Dumper( \@galera_options );
|
||||
#debugprint Dumper( \@galera_options ) if $opt{debug};
|
||||
return @galera_options;
|
||||
}
|
||||
|
||||
@ -5984,7 +6028,7 @@ having sum(if(c.column_key in ('PRI', 'UNI'), 1, 0)) = 0"
|
||||
}
|
||||
}
|
||||
|
||||
#debugprint Dumper get_wsrep_options();
|
||||
#debugprint Dumper get_wsrep_options() if $opt{debug};
|
||||
}
|
||||
|
||||
# Recommendations for InnoDB
|
||||
@ -6091,9 +6135,25 @@ sub mysql_innodb {
|
||||
}
|
||||
|
||||
# InnoDB Buffer Pool Size
|
||||
if ($arch == 32 && $myvar{'innodb_buffer_pool_size'} > 4294967295) {
|
||||
badprint "InnoDb Buffer Pool size limit reached for 32 bits architecture: (". hr_bytes(4294967295)." )";
|
||||
push( @adjvars, "limit innodb_buffer_pool_size under ".hr_bytes(4294967295)." for 32 bits architecture");
|
||||
}
|
||||
if ($arch == 32 && $myvar{'innodb_buffer_pool_size'} < 4294967295) {
|
||||
goodprint "InnoDb Buffer Pool size ( " . hr_bytes($myvar{'innodb_buffer_pool_size'}). " ) under limit for 32 bits architecture: (". hr_bytes(4294967295 ).")";
|
||||
}
|
||||
if ($arch == 64 && $myvar{'innodb_buffer_pool_size'} > 18446744073709551615 ) {
|
||||
badprint "InnoDb Buffer Pool size limit(". hr_bytes(18446744073709551615 ).") reached for 64 bits architecture";
|
||||
push( @adjvars, "limit innodb_buffer_pool_size under ".hr_bytes(18446744073709551615)." for 64 bits architecture");
|
||||
}
|
||||
|
||||
if ($arch == 64 && $myvar{'innodb_buffer_pool_size'} < 18446744073709551615 ) {
|
||||
goodprint "InnoDb Buffer Pool size ( " . hr_bytes($myvar{'innodb_buffer_pool_size'}). " ) under limit for 64 bits architecture: (". hr_bytes(18446744073709551615 )." )";
|
||||
}
|
||||
if ( $myvar{'innodb_buffer_pool_size'} > $enginestats{'InnoDB'} ) {
|
||||
goodprint "InnoDB buffer pool / data size: "
|
||||
. hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . " / "
|
||||
. hr_bytes( $myvar{'
|
||||
'} ) . " / "
|
||||
. hr_bytes( $enginestats{'InnoDB'} ) . "";
|
||||
} else {
|
||||
badprint "InnoDB buffer pool / data size: "
|
||||
@ -7041,7 +7101,8 @@ os_setup; # Set up some OS variables
|
||||
get_all_vars; # Toss variables/status into hashes
|
||||
get_tuning_info; # Get information about the tuning connection
|
||||
calculations; # Calculate everything we need
|
||||
|
||||
check_architecture; # Suggest 64-bit upgrade
|
||||
check_storage_engines; # Show enabled storage engines
|
||||
if ( $opt{'feature'} ne '' ) {
|
||||
subheaderprint "See FEATURES.md for more information";
|
||||
no strict 'refs';
|
||||
@ -7049,14 +7110,13 @@ if ( $opt{'feature'} ne '' ) {
|
||||
subheaderprint "Running feature: $opt{'feature'}";
|
||||
$feature->();
|
||||
}
|
||||
make_recommendations;
|
||||
exit(0);
|
||||
}
|
||||
validate_mysql_version; # Check current MySQL version
|
||||
|
||||
check_architecture; # Suggest 64-bit upgrade
|
||||
system_recommendations; # Avoid too many services 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 information about databases
|
||||
@ -7101,7 +7161,7 @@ __END__
|
||||
|
||||
=head1 NAME
|
||||
|
||||
MySQLTuner 2.1.9 - MySQL High Performance Tuning Script
|
||||
MySQLTuner 2.1.11 - MySQL High Performance Tuning Script
|
||||
|
||||
=head1 IMPORTANT USAGE GUIDELINES
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user