hhf/MySQLTuner-perl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Version bump to 1.0.0-rc1

Browse source 
Fixed memory calculation problem in NetBSD where the amount of memory overflowed a 32-bit integer.  Used "sysctl -n hw.physmem64" rather than "sysctl -n hw.physmem" in those situations. (Thanks to Dave Burgess)
Fixed an issue where the script would suggest adding skip-isam to the MySQL configuration in 4.0.x, but the directive wasn't available until 4.1.1. (Thanks to Ryan Novosielski)
Fixed an issue with MySQL 5.1 where table_open_cache needed to be adjusted, rather than open_cache. (Thanks to Michael Scheidell and Blair Christensen)
Adjusted some misleading wording when MySQL's memory usage is very high relative to the amount of physical memory installed. Increased threshold to 90%. (Thanks to Hans du Plooy)
Fixed an issue where MySQL logins failed when a socket was specified but a .my.cnf file was also present. (Thanks to Victor Trac)
Added full support for Solaris. (Big thanks to Bill Bradford)
This commit is contained in:
Major Hayden 2008-11-02 18:25:55 +00:00
parent e328934a19
commit c0ab5bc196
1 changed files with 19 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
mysqltuner.pl
View file

@ -1,5 +1,5 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
# mysqltuner.pl - Version 0.9.9 # mysqltuner.pl - Version 1.0.0-rc1
# High Performance MySQL Tuning Script # High Performance MySQL Tuning Script
# Copyright (C) 2006-2008 Major Hayden - major@mhtx.net # Copyright (C) 2006-2008 Major Hayden - major@mhtx.net
# #
@ -38,7 +38,7 @@ use diagnostics;
use Getopt::Long; use Getopt::Long;
# Set up a few variables for use in the script # Set up a few variables for use in the script
my $tunerversion = "0.9.9"; my $tunerversion = "1.0.0-rc1";
my (@adjvars, @generalrec); my (@adjvars, @generalrec);
# Set defaults # Set defaults
@ -216,10 +216,17 @@ sub os_setup {
$swap_memory = `sysctl -n vm.swapusage | awk '{print \$3}' | sed 's/\..*\$//'` or memerror; $swap_memory = `sysctl -n vm.swapusage | awk '{print \$3}' | sed 's/\..*\$//'` or memerror;
} elsif ($os =~ /NetBSD|OpenBSD/) { } elsif ($os =~ /NetBSD|OpenBSD/) {
$physical_memory = `sysctl -n hw.physmem` or memerror; $physical_memory = `sysctl -n hw.physmem` or memerror;
if ($physical_memory < 0) {
$physical_memory = `sysctl -n hw.physmem64` or memerror;
}
$swap_memory = `swapctl -l | grep '^/' | awk '{ s+= \$2 } END { print s }'` or memerror; $swap_memory = `swapctl -l | grep '^/' | awk '{ s+= \$2 } END { print s }'` or memerror;
} elsif ($os =~ /BSD/) { } elsif ($os =~ /BSD/) {
$physical_memory = `sysctl -n hw.realmem`; $physical_memory = `sysctl -n hw.realmem`;
$swap_memory = `swapinfo | grep '^/' | awk '{ s+= \$2 } END { print s }'`; $swap_memory = `swapinfo | grep '^/' | awk '{ s+= \$2 } END { print s }'`;
} elsif ($os =~ /SunOS/) {
$physical_memory = `/usr/sbin/prtconf | grep Memory | awk '{print \$3}'` or memerror;
chomp($physical_memory);
$physical_memory = $physical_memory*1024*1024;
} }
} }
chomp($physical_memory); chomp($physical_memory);
@ -278,7 +285,7 @@ sub mysql_setup {
my $loginstatus = `mysqladmin $remotestring ping 2>&1`; my $loginstatus = `mysqladmin $remotestring ping 2>&1`;
if ($loginstatus =~ /mysqld is alive/) { if ($loginstatus =~ /mysqld is alive/) {
# Login went just fine # Login went just fine
$mysqllogin = ""; $mysqllogin = " $remotestring ";
# Did this go well because of a .my.cnf file or is there no password set? # Did this go well because of a .my.cnf file or is there no password set?
my $userpath = `ls -d ~ 2>/dev/null`; my $userpath = `ls -d ~ 2>/dev/null`;
if (length($userpath) > 0) { if (length($userpath) > 0) {
@ -382,7 +389,10 @@ sub validate_mysql_version {
my ($arch); my ($arch);
sub check_architecture { sub check_architecture {
if ($doremote eq 1) { return; } if ($doremote eq 1) { return; }
if (`uname -m` =~ /64/) { if (`uname` =~ /SunOS/ && `isainfo -b` =~ /64/) {
$arch = 64;
goodprint "Operating on 64-bit architecture\n";
} elsif (`uname` !~ /SunOS/ && `uname -m` =~ /64/) {
$arch = 64; $arch = 64;
goodprint "Operating on 64-bit architecture\n"; goodprint "Operating on 64-bit architecture\n";
} else { } else {
@ -476,7 +486,7 @@ sub check_storage_engines {
} }
if (!defined $enginestats{'ISAM'} && defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES") { if (!defined $enginestats{'ISAM'} && defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES") {
badprint "ISAM is enabled but isn't being used\n"; badprint "ISAM is enabled but isn't being used\n";
push(@generalrec,"Add skip-isam to MySQL configuration to disable ISAM"); push(@generalrec,"Add skip-isam to MySQL configuration to disable ISAM (MySQL > 4.1.0)");
} }
# Fragmented tables # Fragmented tables
if ($fragtables > 0) { if ($fragtables > 0) {
@ -773,7 +783,7 @@ sub mysql_stats {
if ($mystat{'Open_tables'} > 0) { if ($mystat{'Open_tables'} > 0) {
if ($mycalc{'table_cache_hit_rate'} < 20) { 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)\n"; badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% (".hr_num($mystat{'Open_tables'})." open / ".hr_num($mystat{'Opened_tables'})." opened)\n";
if ($mysqlvermajor eq 6) { if ($mysqlvermajor eq 6 || ($mysqlvermajor eq 5 && $mysqlverminor ge 1)) {
push(@adjvars,"table_cache (> ".$myvar{'table_open_cache'}.")"); push(@adjvars,"table_cache (> ".$myvar{'table_open_cache'}.")");
} else { } else {
push(@adjvars,"table_cache (> ".$myvar{'table_cache'}.")"); push(@adjvars,"table_cache (> ".$myvar{'table_cache'}.")");
@ -837,9 +847,9 @@ sub make_recommendations {
} }
if (@adjvars > 0) { if (@adjvars > 0) {
print "Variables to adjust:\n"; print "Variables to adjust:\n";
if ($mycalc{'pct_physical_memory'} > 85) { if ($mycalc{'pct_physical_memory'} > 90) {
print " *** MySQL's maximum memory usage exceeds your installed memory ***\n". print " *** MySQL's maximum memory usage is dangerously high ***\n".
" *** Add more RAM before increasing any MySQL buffer variables ***\n"; " *** Add RAM before increasing MySQL buffer variables ***\n";
} }
foreach (@adjvars) { print " ".$_."\n"; } foreach (@adjvars) { print " ".$_."\n"; }
} }