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* Changed indexing calculations so that all tables are not opened in MySQL 5 (thanks Jon!)

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* Adjusted some of the commented lines at the top of the script
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Major Hayden 2007-12-01 20:31:15 +00:00
parent 33928700a3
commit 34b5cba861
1 changed files with 22 additions and 20 deletions
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32
mysqltuner.pl
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@ -1,13 +1,10 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
# mysqltuner.pl - High Performance MySQL Tuning Script # mysqltuner.pl - Revision 20071201
# High Performance MySQL Tuning Script
# Copyright (C) 2006-2007 Major Hayden - major@mhtx.net # Copyright (C) 2006-2007 Major Hayden - major@mhtx.net
# #
# Inspired by Matthew Montgomery's tuning-primer.sh script: # For the latest updates, please visit http://mysqltuner.com
# http://forge.mysql.com/projects/view.php?id=44 # Subversion repository available at http://tools.assembla.com/svn/mysqltuner/
#
# Other Contributors:
# Paul Kehrer
# Dave Burgess
# #
# This program is free software: you can redistribute it and/or modify # 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 # it under the terms of the GNU General Public License as published by
@ -21,7 +18,16 @@
# #
# You should have received a copy of the GNU General Public License # You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>. # along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This project would not be possible without help from:
# Matthew Montgomery
# Paul Kehrer
# Dave Burgess
# Jonathan Hinds
#
# Inspired by Matthew Montgomery's tuning-primer.sh script:
# http://forge.mysql.com/projects/view.php?id=44
#
use strict; use strict;
use warnings; use warnings;
use diagnostics; use diagnostics;
@ -50,7 +56,7 @@ sub usage {
print "\n". print "\n".
" MySQL High Performance Tuning Script\n". " MySQL High Performance Tuning Script\n".
" Bug reports, feature requests, and downloads at http://mysqltuner.com/\n". " Bug reports, feature requests, and downloads at http://mysqltuner.com/\n".
" Maintained by Major Hayden (major.hayden\@rackspace.com)\n\n". " Maintained by Major Hayden (major\@mhtx.net)\n\n".
" Important Usage Guidelines:\n". " Important Usage Guidelines:\n".
" To run the script with the default options, run the script without arguments\n". " To run the script with the default options, run the script without arguments\n".
" Allow MySQL server to run for at least 24-48 hours before trusting suggestions\n". " Allow MySQL server to run for at least 24-48 hours before trusting suggestions\n".
@ -300,12 +306,8 @@ sub calculations {
if ($mystat{'Key_read_requests'} > 0) { if ($mystat{'Key_read_requests'} > 0) {
$mycalc{'pct_keys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_reads'} / $mystat{'Key_read_requests'}) * 100))); $mycalc{'pct_keys_from_mem'} = sprintf("%.1f",(100 - (($mystat{'Key_reads'} / $mystat{'Key_read_requests'}) * 100)));
} }
if ($mysqlvermajor < 5) {
$mycalc{'total_myisam_indexes'} = `find $myvar{'datadir'} -name '*.MYI' 2>&1 | xargs du $duflags '{}' 2>&1 | awk '{ s += \$1 } END { print s }'`; $mycalc{'total_myisam_indexes'} = `find $myvar{'datadir'} -name '*.MYI' 2>&1 | xargs du $duflags '{}' 2>&1 | awk '{ s += \$1 } END { print s }'`;
if ($mycalc{'total_myisam_indexes'} =~ /^0\n$/) { $mycalc{'total_myisam_indexes'} = "fail"; } if ($mycalc{'total_myisam_indexes'} =~ /^0\n$/) { $mycalc{'total_myisam_indexes'} = "fail"; }
} else {
$mycalc{'total_myisam_indexes'} = `mysql $mysqllogin -Bse "/*!50000 SELECT SUM(INDEX_LENGTH) from information_schema.TABLES where ENGINE='MyISAM' */"`;
}
chomp($mycalc{'total_myisam_indexes'}); chomp($mycalc{'total_myisam_indexes'});
# Query cache # Query cache
@ -591,8 +593,8 @@ sub make_recommendations {
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
# BEGIN 'MAIN' # BEGIN 'MAIN'
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
print " MySQL High-Performance Tuner - Major Hayden <major.hayden\@rackspace.com>\n". print " MySQL High-Performance Tuning Script - Major Hayden <major\@mhtx.net>\n".
" Bug reports, feature requests, and downloads at mysqltuner.com\n". " Bug reports, feature requests, and downloads at http://mysqltuner.com/\n".
" Run with '--help' for additional options and output filtering\n"; " Run with '--help' for additional options and output filtering\n";
os_setup; # Set up some OS variables os_setup; # Set up some OS variables
mysql_setup; # Gotta login first mysql_setup; # Gotta login first