/usr/bin/mysqldumpslow is in mysql-client-5.5 5.5.22-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 | #!/usr/bin/perl
# Copyright (c) 2000-2002, 2005-2008 MySQL AB, 2008, 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; version 2
# of the License.
#
# 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA
# mysqldumpslow - parse and summarize the MySQL slow query log
# Original version by Tim Bunce, sometime in 2000.
# Further changes by Tim Bunce, 8th March 2001.
# Handling of strings with \ and double '' by Monty 11 Aug 2001.
use strict;
use Getopt::Long;
# t=time, l=lock time, r=rows
# at, al, and ar are the corresponding averages
my %opt = (
s => 'at',
h => '*',
);
GetOptions(\%opt,
'v|verbose+',# verbose
'help+', # write usage info
'd|debug+', # debug
's=s', # what to sort by (al, at, ar, c, t, l, r)
'r!', # reverse the sort order (largest last instead of first)
't=i', # just show the top n queries
'a!', # don't abstract all numbers to N and strings to 'S'
'n=i', # abstract numbers with at least n digits within names
'g=s', # grep: only consider stmts that include this string
'h=s', # hostname of db server for *-slow.log filename (can be wildcard)
'i=s', # name of server instance (if using mysql.server startup script)
'l!', # don't subtract lock time from total time
) or usage("bad option");
$opt{'help'} and usage();
unless (@ARGV) {
my $defaults = `my_print_defaults mysqld`;
my $basedir = ($defaults =~ m/--basedir=(.*)/)[0]
or die "Can't determine basedir from 'my_print_defaults mysqld' output: $defaults";
warn "basedir=$basedir\n" if $opt{v};
my $datadir = ($defaults =~ m/--datadir=(.*)/)[0];
my $slowlog = ($defaults =~ m/--log-slow-queries=(.*)/)[0];
if (!$datadir or $opt{i}) {
# determine the datadir from the instances section of /etc/my.cnf, if any
my $instances = `my_print_defaults instances`;
die "Can't determine datadir from 'my_print_defaults mysqld' output: $defaults"
unless $instances;
my @instances = ($instances =~ m/^--(\w+)-/mg);
die "No -i 'instance_name' specified to select among known instances: @instances.\n"
unless $opt{i};
die "Instance '$opt{i}' is unknown (known instances: @instances)\n"
unless grep { $_ eq $opt{i} } @instances;
$datadir = ($instances =~ m/--$opt{i}-datadir=(.*)/)[0]
or die "Can't determine --$opt{i}-datadir from 'my_print_defaults instances' output: $instances";
warn "datadir=$datadir\n" if $opt{v};
}
if ( -f $slowlog ) {
@ARGV = ($slowlog);
die "Can't find '$slowlog'\n" unless @ARGV;
} else {
@ARGV = <$datadir/$opt{h}-slow.log>;
die "Can't find '$datadir/$opt{h}-slow.log'\n" unless @ARGV;
}
}
warn "\nReading mysql slow query log from @ARGV\n";
my @pending;
my %stmt;
$/ = ";\n#"; # read entire statements using paragraph mode
while ( defined($_ = shift @pending) or defined($_ = <>) ) {
warn "[[$_]]\n" if $opt{d}; # show raw paragraph being read
my @chunks = split /^\/.*Version.*started with[\000-\377]*?Time.*Id.*Command.*Argument.*\n/m;
if (@chunks > 1) {
unshift @pending, map { length($_) ? $_ : () } @chunks;
warn "<<".join(">>\n<<",@chunks).">>" if $opt{d};
next;
}
s/^#? Time: \d{6}\s+\d+:\d+:\d+.*\n//;
my ($user,$host) = s/^#? User\@Host:\s+(\S+)\s+\@\s+(\S+).*\n// ? ($1,$2) : ('','');
s/^# Query_time: ([0-9.]+)\s+Lock_time: ([0-9.]+)\s+Rows_sent: ([0-9.]+).*\n//;
my ($t, $l, $r) = ($1, $2, $3);
$t -= $l unless $opt{l};
# remove fluff that mysqld writes to log when it (re)starts:
s!^/.*Version.*started with:.*\n!!mg;
s!^Tcp port: \d+ Unix socket: \S+\n!!mg;
s!^Time.*Id.*Command.*Argument.*\n!!mg;
s/^use \w+;\n//; # not consistently added
s/^SET timestamp=\d+;\n//;
s/^[ ]*\n//mg; # delete blank lines
s/^[ ]*/ /mg; # normalize leading whitespace
s/\s*;\s*(#\s*)?$//; # remove trailing semicolon(+newline-hash)
next if $opt{g} and !m/$opt{g}/io;
unless ($opt{a}) {
s/\b\d+\b/N/g;
s/\b0x[0-9A-Fa-f]+\b/N/g;
s/''/'S'/g;
s/""/"S"/g;
s/(\\')//g;
s/(\\")//g;
s/'[^']+'/'S'/g;
s/"[^"]+"/"S"/g;
# -n=8: turn log_20001231 into log_NNNNNNNN
s/([a-z_]+)(\d{$opt{n},})/$1.('N' x length($2))/ieg if $opt{n};
# abbreviate massive "in (...)" statements and similar
s!(([NS],){100,})!sprintf("$2,{repeated %d times}",length($1)/2)!eg;
}
my $s = $stmt{$_} ||= { users=>{}, hosts=>{} };
$s->{c} += 1;
$s->{t} += $t;
$s->{l} += $l;
$s->{r} += $r;
$s->{users}->{$user}++ if $user;
$s->{hosts}->{$host}++ if $host;
warn "{{$_}}\n\n" if $opt{d}; # show processed statement string
}
foreach (keys %stmt) {
my $v = $stmt{$_} || die;
my ($c, $t, $l, $r) = @{ $v }{qw(c t l r)};
$v->{at} = $t / $c;
$v->{al} = $l / $c;
$v->{ar} = $r / $c;
}
my @sorted = sort { $stmt{$b}->{$opt{s}} <=> $stmt{$a}->{$opt{s}} } keys %stmt;
@sorted = @sorted[0 .. $opt{t}-1] if $opt{t};
@sorted = reverse @sorted if $opt{r};
foreach (@sorted) {
my $v = $stmt{$_} || die;
my ($c, $t,$at, $l,$al, $r,$ar) = @{ $v }{qw(c t at l al r ar)};
my @users = keys %{$v->{users}};
my $user = (@users==1) ? $users[0] : sprintf "%dusers",scalar @users;
my @hosts = keys %{$v->{hosts}};
my $host = (@hosts==1) ? $hosts[0] : sprintf "%dhosts",scalar @hosts;
printf "Count: %d Time=%.2fs (%ds) Lock=%.2fs (%ds) Rows=%.1f (%d), $user\@$host\n%s\n\n",
$c, $at,$t, $al,$l, $ar,$r, $_;
}
sub usage {
my $str= shift;
my $text= <<HERE;
Usage: mysqldumpslow [ OPTS... ] [ LOGS... ]
Parse and summarize the MySQL slow query log. Options are
--verbose verbose
--debug debug
--help write this text to standard output
-v verbose
-d debug
-s ORDER what to sort by (al, at, ar, c, l, r, t), 'at' is default
al: average lock time
ar: average rows sent
at: average query time
c: count
l: lock time
r: rows sent
t: query time
-r reverse the sort order (largest last instead of first)
-t NUM just show the top n queries
-a don't abstract all numbers to N and strings to 'S'
-n NUM abstract numbers with at least n digits within names
-g PATTERN grep: only consider stmts that include this string
-h HOSTNAME hostname of db server for *-slow.log filename (can be wildcard),
default is '*', i.e. match all
-i NAME name of server instance (if using mysql.server startup script)
-l don't subtract lock time from total time
HERE
if ($str) {
print STDERR "ERROR: $str\n\n";
print STDERR $text;
exit 1;
} else {
print $text;
exit 0;
}
}
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