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mk-heartbeat.bat
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@rem = '--*-Perl-*--
@echo off
if "%OS%" == "Windows_NT" goto WinNT
perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
goto endofperl
:WinNT
perl -x -S %0 %*
if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
if %errorlevel% == 9009 echo You do not have Perl in your PATH.
if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
goto endofperl
@rem ';
#!/usr/bin/env perl
#line 15
# This is mk-heartbeat, a tool to measure replication delay.
#
# This program is copyright 2007-2011 Percona Inc.
# and copyright 2006 Proven Scaling LLC and Six Apart Ltd.
# Feedback and improvements are welcome.
#
# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# 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, version 2; OR the Perl Artistic License. On UNIX and
# similar systems, you can issue `man perlgpl' or `man perlartistic' to read
# these licenses.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA.
use strict;
use warnings FATAL => 'all';
our $VERSION = '1.0.23';
our $DISTRIB = '7540';
our $SVN_REV = sprintf("%d", (q$Revision: 7537 $ =~ m/(\d+)/g, 0));
# ###########################################################################
# MasterSlave package 7525
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the SVN repository at,
# trunk/common/MasterSlave.pm
# trunk/common/t/MasterSlave.t
# See http://code.google.com/p/maatkit/wiki/Developers for more information.
# ###########################################################################
package MasterSlave;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
use List::Util qw(min max);
use Data::Dumper;
$Data::Dumper::Quotekeys = 0;
$Data::Dumper::Indent = 0;
sub new {
my ( $class, %args ) = @_;
my $self = {
%args,
replication_thread => {},
};
return bless $self, $class;
}
sub recurse_to_slaves {
my ( $self, $args, $level ) = @_;
$level ||= 0;
my $dp = $args->{dsn_parser};
my $dsn = $args->{dsn};
my $dbh;
eval {
$dbh = $args->{dbh} || $dp->get_dbh(
$dp->get_cxn_params($dsn), { AutoCommit => 1 });
MKDEBUG && _d('Connected to', $dp->as_string($dsn));
};
if ( $EVAL_ERROR ) {
print STDERR "Cannot connect to ", $dp->as_string($dsn), "\n"
or die "Cannot print: $OS_ERROR";
return;
}
my $sql = 'SELECT @@SERVER_ID';
MKDEBUG && _d($sql);
my ($id) = $dbh->selectrow_array($sql);
MKDEBUG && _d('Working on server ID', $id);
my $master_thinks_i_am = $dsn->{server_id};
if ( !defined $id
|| ( defined $master_thinks_i_am && $master_thinks_i_am != $id )
|| $args->{server_ids_seen}->{$id}++
) {
MKDEBUG && _d('Server ID seen, or not what master said');
if ( $args->{skip_callback} ) {
$args->{skip_callback}->($dsn, $dbh, $level, $args->{parent});
}
return;
}
$args->{callback}->($dsn, $dbh, $level, $args->{parent});
if ( !defined $args->{recurse} || $level < $args->{recurse} ) {
my @slaves =
grep { !$_->{master_id} || $_->{master_id} == $id } # Only my slaves.
$self->find_slave_hosts($dp, $dbh, $dsn, $args->{method});
foreach my $slave ( @slaves ) {
MKDEBUG && _d('Recursing from',
$dp->as_string($dsn), 'to', $dp->as_string($slave));
$self->recurse_to_slaves(
{ %$args, dsn => $slave, dbh => undef, parent => $dsn }, $level + 1 );
}
}
}
sub find_slave_hosts {
my ( $self, $dsn_parser, $dbh, $dsn, $method ) = @_;
my @methods = qw(processlist hosts);
if ( $method ) {
@methods = grep { $_ ne $method } @methods;
unshift @methods, $method;
}
else {
if ( ($dsn->{P} || 3306) != 3306 ) {
MKDEBUG && _d('Port number is non-standard; using only hosts method');
@methods = qw(hosts);
}
}
MKDEBUG && _d('Looking for slaves on', $dsn_parser->as_string($dsn),
'using methods', @methods);
my @slaves;
METHOD:
foreach my $method ( @methods ) {
my $find_slaves = "_find_slaves_by_$method";
MKDEBUG && _d('Finding slaves with', $find_slaves);
@slaves = $self->$find_slaves($dsn_parser, $dbh, $dsn);
last METHOD if @slaves;
}
MKDEBUG && _d('Found', scalar(@slaves), 'slaves');
return @slaves;
}
sub _find_slaves_by_processlist {
my ( $self, $dsn_parser, $dbh, $dsn ) = @_;
my @slaves = map {
my $slave = $dsn_parser->parse("h=$_", $dsn);
$slave->{source} = 'processlist';
$slave;
}
grep { $_ }
map {
my ( $host ) = $_->{host} =~ m/^([^:]+):/;
if ( $host eq 'localhost' ) {
$host = '127.0.0.1'; # Replication never uses sockets.
}
$host;
} $self->get_connected_slaves($dbh);
return @slaves;
}
sub _find_slaves_by_hosts {
my ( $self, $dsn_parser, $dbh, $dsn ) = @_;
my @slaves;
my $sql = 'SHOW SLAVE HOSTS';
MKDEBUG && _d($dbh, $sql);
@slaves = @{$dbh->selectall_arrayref($sql, { Slice => {} })};
if ( @slaves ) {
MKDEBUG && _d('Found some SHOW SLAVE HOSTS info');
@slaves = map {
my %hash;
@hash{ map { lc $_ } keys %$_ } = values %$_;
my $spec = "h=$hash{host},P=$hash{port}"
. ( $hash{user} ? ",u=$hash{user}" : '')
. ( $hash{password} ? ",p=$hash{password}" : '');
my $dsn = $dsn_parser->parse($spec, $dsn);
$dsn->{server_id} = $hash{server_id};
$dsn->{master_id} = $hash{master_id};
$dsn->{source} = 'hosts';
$dsn;
} @slaves;
}
return @slaves;
}
sub get_connected_slaves {
my ( $self, $dbh ) = @_;
my $show = "SHOW GRANTS FOR ";
my $user = 'CURRENT_USER()';
my $vp = $self->{VersionParser};
if ( $vp && !$vp->version_ge($dbh, '4.1.2') ) {
$user = $dbh->selectrow_arrayref('SELECT USER()')->[0];
$user =~ s/([^@]+)@(.+)/'$1'\@'$2'/;
}
my $sql = $show . $user;
MKDEBUG && _d($dbh, $sql);
my $proc;
eval {
$proc = grep {
m/ALL PRIVILEGES.*?\*\.\*|PROCESS/
} @{$dbh->selectcol_arrayref($sql)};
};
if ( $EVAL_ERROR ) {
if ( $EVAL_ERROR =~ m/no such grant defined for user/ ) {
MKDEBUG && _d('Retrying SHOW GRANTS without host; error:',
$EVAL_ERROR);
($user) = split('@', $user);
$sql = $show . $user;
MKDEBUG && _d($sql);
eval {
$proc = grep {
m/ALL PRIVILEGES.*?\*\.\*|PROCESS/
} @{$dbh->selectcol_arrayref($sql)};
};
}
die "Failed to $sql: $EVAL_ERROR" if $EVAL_ERROR;
}
if ( !$proc ) {
die "You do not have the PROCESS privilege";
}
$sql = 'SHOW PROCESSLIST';
MKDEBUG && _d($dbh, $sql);
grep { $_->{command} =~ m/Binlog Dump/i }
map { # Lowercase the column names
my %hash;
@hash{ map { lc $_ } keys %$_ } = values %$_;
\%hash;
}
@{$dbh->selectall_arrayref($sql, { Slice => {} })};
}
sub is_master_of {
my ( $self, $master, $slave ) = @_;
my $master_status = $self->get_master_status($master)
or die "The server specified as a master is not a master";
my $slave_status = $self->get_slave_status($slave)
or die "The server specified as a slave is not a slave";
my @connected = $self->get_connected_slaves($master)
or die "The server specified as a master has no connected slaves";
my (undef, $port) = $master->selectrow_array('SHOW VARIABLES LIKE "port"');
if ( $port != $slave_status->{master_port} ) {
die "The slave is connected to $slave_status->{master_port} "
. "but the master's port is $port";
}
if ( !grep { $slave_status->{master_user} eq $_->{user} } @connected ) {
die "I don't see any slave I/O thread connected with user "
. $slave_status->{master_user};
}
if ( ($slave_status->{slave_io_state} || '')
eq 'Waiting for master to send event' )
{
my ( $master_log_name, $master_log_num )
= $master_status->{file} =~ m/^(.*?)\.0*([1-9][0-9]*)$/;
my ( $slave_log_name, $slave_log_num )
= $slave_status->{master_log_file} =~ m/^(.*?)\.0*([1-9][0-9]*)$/;
if ( $master_log_name ne $slave_log_name
|| abs($master_log_num - $slave_log_num) > 1 )
{
die "The slave thinks it is reading from "
. "$slave_status->{master_log_file}, but the "
. "master is writing to $master_status->{file}";
}
}
return 1;
}
sub get_master_dsn {
my ( $self, $dbh, $dsn, $dsn_parser ) = @_;
my $master = $self->get_slave_status($dbh) or return undef;
my $spec = "h=$master->{master_host},P=$master->{master_port}";
return $dsn_parser->parse($spec, $dsn);
}
sub get_slave_status {
my ( $self, $dbh ) = @_;
if ( !$self->{not_a_slave}->{$dbh} ) {
my $sth = $self->{sths}->{$dbh}->{SLAVE_STATUS}
||= $dbh->prepare('SHOW SLAVE STATUS');
MKDEBUG && _d($dbh, 'SHOW SLAVE STATUS');
$sth->execute();
my ($ss) = @{$sth->fetchall_arrayref({})};
if ( $ss && %$ss ) {
$ss = { map { lc($_) => $ss->{$_} } keys %$ss }; # lowercase the keys
return $ss;
}
MKDEBUG && _d('This server returns nothing for SHOW SLAVE STATUS');
$self->{not_a_slave}->{$dbh}++;
}
}
sub get_master_status {
my ( $self, $dbh ) = @_;
if ( $self->{not_a_master}->{$dbh} ) {
MKDEBUG && _d('Server on dbh', $dbh, 'is not a master');
return;
}
my $sth = $self->{sths}->{$dbh}->{MASTER_STATUS}
||= $dbh->prepare('SHOW MASTER STATUS');
MKDEBUG && _d($dbh, 'SHOW MASTER STATUS');
$sth->execute();
my ($ms) = @{$sth->fetchall_arrayref({})};
MKDEBUG && _d(Dumper($ms));
if ( !$ms || scalar keys %$ms < 2 ) {
MKDEBUG && _d('Server on dbh', $dbh, 'does not seem to be a master');
$self->{not_a_master}->{$dbh}++;
}
return { map { lc($_) => $ms->{$_} } keys %$ms }; # lowercase the keys
}
sub wait_for_master {
my ( $self, %args ) = @_;
my @required_args = qw(master_status slave_dbh);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($master_status, $slave_dbh) = @args{@required_args};
my $timeout = $args{timeout} || 60;
my $result;
my $waited;
if ( $master_status ) {
my $sql = "SELECT MASTER_POS_WAIT('$master_status->{file}', "
. "$master_status->{position}, $timeout)";
MKDEBUG && _d($slave_dbh, $sql);
my $start = time;
($result) = $slave_dbh->selectrow_array($sql);
$waited = time - $start;
MKDEBUG && _d('Result of waiting:', $result);
MKDEBUG && _d("Waited", $waited, "seconds");
}
else {
MKDEBUG && _d('Not waiting: this server is not a master');
}
return {
result => $result,
waited => $waited,
};
}
sub stop_slave {
my ( $self, $dbh ) = @_;
my $sth = $self->{sths}->{$dbh}->{STOP_SLAVE}
||= $dbh->prepare('STOP SLAVE');
MKDEBUG && _d($dbh, $sth->{Statement});
$sth->execute();
}
sub start_slave {
my ( $self, $dbh, $pos ) = @_;
if ( $pos ) {
my $sql = "START SLAVE UNTIL MASTER_LOG_FILE='$pos->{file}', "
. "MASTER_LOG_POS=$pos->{position}";
MKDEBUG && _d($dbh, $sql);
$dbh->do($sql);
}
else {
my $sth = $self->{sths}->{$dbh}->{START_SLAVE}
||= $dbh->prepare('START SLAVE');
MKDEBUG && _d($dbh, $sth->{Statement});
$sth->execute();
}
}
sub catchup_to_master {
my ( $self, $slave, $master, $timeout ) = @_;
$self->stop_slave($master);
$self->stop_slave($slave);
my $slave_status = $self->get_slave_status($slave);
my $slave_pos = $self->repl_posn($slave_status);
my $master_status = $self->get_master_status($master);
my $master_pos = $self->repl_posn($master_status);
MKDEBUG && _d('Master position:', $self->pos_to_string($master_pos),
'Slave position:', $self->pos_to_string($slave_pos));
my $result;
if ( $self->pos_cmp($slave_pos, $master_pos) < 0 ) {
MKDEBUG && _d('Waiting for slave to catch up to master');
$self->start_slave($slave, $master_pos);
$result = $self->wait_for_master(
master_status => $master_status,
slave_dbh => $slave,
timeout => $timeout,
master_status => $master_status
);
if ( !defined $result->{result} ) {
$slave_status = $self->get_slave_status($slave);
if ( !$self->slave_is_running($slave_status) ) {
MKDEBUG && _d('Master position:',
$self->pos_to_string($master_pos),
'Slave position:', $self->pos_to_string($slave_pos));
$slave_pos = $self->repl_posn($slave_status);
if ( $self->pos_cmp($slave_pos, $master_pos) != 0 ) {
die "MASTER_POS_WAIT() returned NULL but slave has not "
. "caught up to master";
}
MKDEBUG && _d('Slave is caught up to master and stopped');
}
else {
die "Slave has not caught up to master and it is still running";
}
}
}
else {
MKDEBUG && _d("Slave is already caught up to master");
}
return $result;
}
sub catchup_to_same_pos {
my ( $self, $s1_dbh, $s2_dbh ) = @_;
$self->stop_slave($s1_dbh);
$self->stop_slave($s2_dbh);
my $s1_status = $self->get_slave_status($s1_dbh);
my $s2_status = $self->get_slave_status($s2_dbh);
my $s1_pos = $self->repl_posn($s1_status);
my $s2_pos = $self->repl_posn($s2_status);
if ( $self->pos_cmp($s1_pos, $s2_pos) < 0 ) {
$self->start_slave($s1_dbh, $s2_pos);
}
elsif ( $self->pos_cmp($s2_pos, $s1_pos) < 0 ) {
$self->start_slave($s2_dbh, $s1_pos);
}
$s1_status = $self->get_slave_status($s1_dbh);
$s2_status = $self->get_slave_status($s2_dbh);
$s1_pos = $self->repl_posn($s1_status);
$s2_pos = $self->repl_posn($s2_status);
if ( $self->slave_is_running($s1_status)
|| $self->slave_is_running($s2_status)
|| $self->pos_cmp($s1_pos, $s2_pos) != 0)
{
die "The servers aren't both stopped at the same position";
}
}
sub change_master_to {
my ( $self, $dbh, $master_dsn, $master_pos ) = @_;
$self->stop_slave($dbh);
MKDEBUG && _d(Dumper($master_dsn), Dumper($master_pos));
my $sql = "CHANGE MASTER TO MASTER_HOST='$master_dsn->{h}', "
. "MASTER_PORT= $master_dsn->{P}, MASTER_LOG_FILE='$master_pos->{file}', "
. "MASTER_LOG_POS=$master_pos->{position}";
MKDEBUG && _d($dbh, $sql);
$dbh->do($sql);
}
sub make_sibling_of_master {
my ( $self, $slave_dbh, $slave_dsn, $dsn_parser, $timeout) = @_;
my $master_dsn = $self->get_master_dsn($slave_dbh, $slave_dsn, $dsn_parser)
or die "This server is not a slave";
my $master_dbh = $dsn_parser->get_dbh(
$dsn_parser->get_cxn_params($master_dsn), { AutoCommit => 1 });
my $gmaster_dsn
= $self->get_master_dsn($master_dbh, $master_dsn, $dsn_parser)
or die "This server's master is not a slave";
my $gmaster_dbh = $dsn_parser->get_dbh(
$dsn_parser->get_cxn_params($gmaster_dsn), { AutoCommit => 1 });
if ( $self->short_host($slave_dsn) eq $self->short_host($gmaster_dsn) ) {
die "The slave's master's master is the slave: master-master replication";
}
$self->stop_slave($master_dbh);
$self->catchup_to_master($slave_dbh, $master_dbh, $timeout);
$self->stop_slave($slave_dbh);
my $master_status = $self->get_master_status($master_dbh);
my $mslave_status = $self->get_slave_status($master_dbh);
my $slave_status = $self->get_slave_status($slave_dbh);
my $master_pos = $self->repl_posn($master_status);
my $slave_pos = $self->repl_posn($slave_status);
if ( !$self->slave_is_running($mslave_status)
&& !$self->slave_is_running($slave_status)
&& $self->pos_cmp($master_pos, $slave_pos) == 0)
{
$self->change_master_to($slave_dbh, $gmaster_dsn,
$self->repl_posn($mslave_status)); # Note it's not $master_pos!
}
else {
die "The servers aren't both stopped at the same position";
}
$mslave_status = $self->get_slave_status($master_dbh);
$slave_status = $self->get_slave_status($slave_dbh);
my $mslave_pos = $self->repl_posn($mslave_status);
$slave_pos = $self->repl_posn($slave_status);
if ( $self->short_host($mslave_status) ne $self->short_host($slave_status)
|| $self->pos_cmp($mslave_pos, $slave_pos) != 0)
{
die "The servers don't have the same master/position after the change";
}
}
sub make_slave_of_sibling {
my ( $self, $slave_dbh, $slave_dsn, $sib_dbh, $sib_dsn,
$dsn_parser, $timeout) = @_;
if ( $self->short_host($slave_dsn) eq $self->short_host($sib_dsn) ) {
die "You are trying to make the slave a slave of itself";
}
my $master_dsn1 = $self->get_master_dsn($slave_dbh, $slave_dsn, $dsn_parser)
or die "This server is not a slave";
my $master_dbh1 = $dsn_parser->get_dbh(
$dsn_parser->get_cxn_params($master_dsn1), { AutoCommit => 1 });
my $master_dsn2 = $self->get_master_dsn($slave_dbh, $slave_dsn, $dsn_parser)
or die "The sibling is not a slave";
if ( $self->short_host($master_dsn1) ne $self->short_host($master_dsn2) ) {
die "This server isn't a sibling of the slave";
}
my $sib_master_stat = $self->get_master_status($sib_dbh)
or die "Binary logging is not enabled on the sibling";
die "The log_slave_updates option is not enabled on the sibling"
unless $self->has_slave_updates($sib_dbh);
$self->catchup_to_same_pos($slave_dbh, $sib_dbh);
$sib_master_stat = $self->get_master_status($sib_dbh);
$self->change_master_to($slave_dbh, $sib_dsn,
$self->repl_posn($sib_master_stat));
my $slave_status = $self->get_slave_status($slave_dbh);
my $slave_pos = $self->repl_posn($slave_status);
$sib_master_stat = $self->get_master_status($sib_dbh);
if ( $self->short_host($slave_status) ne $self->short_host($sib_dsn)
|| $self->pos_cmp($self->repl_posn($sib_master_stat), $slave_pos) != 0)
{
die "After changing the slave's master, it isn't a slave of the sibling, "
. "or it has a different replication position than the sibling";
}
}
sub make_slave_of_uncle {
my ( $self, $slave_dbh, $slave_dsn, $unc_dbh, $unc_dsn,
$dsn_parser, $timeout) = @_;
if ( $self->short_host($slave_dsn) eq $self->short_host($unc_dsn) ) {
die "You are trying to make the slave a slave of itself";
}
my $master_dsn = $self->get_master_dsn($slave_dbh, $slave_dsn, $dsn_parser)
or die "This server is not a slave";
my $master_dbh = $dsn_parser->get_dbh(
$dsn_parser->get_cxn_params($master_dsn), { AutoCommit => 1 });
my $gmaster_dsn
= $self->get_master_dsn($master_dbh, $master_dsn, $dsn_parser)
or die "The master is not a slave";
my $unc_master_dsn
= $self->get_master_dsn($unc_dbh, $unc_dsn, $dsn_parser)
or die "The uncle is not a slave";
if ($self->short_host($gmaster_dsn) ne $self->short_host($unc_master_dsn)) {
die "The uncle isn't really the slave's uncle";
}
my $unc_master_stat = $self->get_master_status($unc_dbh)
or die "Binary logging is not enabled on the uncle";
die "The log_slave_updates option is not enabled on the uncle"
unless $self->has_slave_updates($unc_dbh);
$self->catchup_to_same_pos($master_dbh, $unc_dbh);
$self->catchup_to_master($slave_dbh, $master_dbh, $timeout);
my $slave_status = $self->get_slave_status($slave_dbh);
my $master_status = $self->get_master_status($master_dbh);
if ( $self->pos_cmp(
$self->repl_posn($slave_status),
$self->repl_posn($master_status)) != 0 )
{
die "The slave is not caught up to its master";
}
$unc_master_stat = $self->get_master_status($unc_dbh);
$self->change_master_to($slave_dbh, $unc_dsn,
$self->repl_posn($unc_master_stat));
$slave_status = $self->get_slave_status($slave_dbh);
my $slave_pos = $self->repl_posn($slave_status);
if ( $self->short_host($slave_status) ne $self->short_host($unc_dsn)
|| $self->pos_cmp($self->repl_posn($unc_master_stat), $slave_pos) != 0)
{
die "After changing the slave's master, it isn't a slave of the uncle, "
. "or it has a different replication position than the uncle";
}
}
sub detach_slave {
my ( $self, $dbh ) = @_;
$self->stop_slave($dbh);
my $stat = $self->get_slave_status($dbh)
or die "This server is not a slave";
$dbh->do('CHANGE MASTER TO MASTER_HOST=""');
$dbh->do('RESET SLAVE'); # Wipes out master.info, etc etc
return $stat;
}
sub slave_is_running {
my ( $self, $slave_status ) = @_;
return ($slave_status->{slave_sql_running} || 'No') eq 'Yes';
}
sub has_slave_updates {
my ( $self, $dbh ) = @_;
my $sql = q{SHOW VARIABLES LIKE 'log_slave_updates'};
MKDEBUG && _d($dbh, $sql);
my ($name, $value) = $dbh->selectrow_array($sql);
return $value && $value =~ m/^(1|ON)$/;
}
sub repl_posn {
my ( $self, $status ) = @_;
if ( exists $status->{file} && exists $status->{position} ) {
return {
file => $status->{file},
position => $status->{position},
};
}
else {
return {
file => $status->{relay_master_log_file},
position => $status->{exec_master_log_pos},
};
}
}
sub get_slave_lag {
my ( $self, $dbh ) = @_;
my $stat = $self->get_slave_status($dbh);
return $stat->{seconds_behind_master};
}
sub pos_cmp {
my ( $self, $a, $b ) = @_;
return $self->pos_to_string($a) cmp $self->pos_to_string($b);
}
sub short_host {
my ( $self, $dsn ) = @_;
my ($host, $port);
if ( $dsn->{master_host} ) {
$host = $dsn->{master_host};
$port = $dsn->{master_port};
}
else {
$host = $dsn->{h};
$port = $dsn->{P};
}
return ($host || '[default]') . ( ($port || 3306) == 3306 ? '' : ":$port" );
}
sub is_replication_thread {
my ( $self, $query, %args ) = @_;
return unless $query;
my $type = lc $args{type} || 'all';
die "Invalid type: $type"
unless $type =~ m/^binlog_dump|slave_io|slave_sql|all$/i;
my $match = 0;
if ( $type =~ m/binlog_dump|all/i ) {
$match = 1
if ($query->{Command} || $query->{command} || '') eq "Binlog Dump";
}
if ( !$match ) {
if ( ($query->{User} || $query->{user} || '') eq "system user" ) {
MKDEBUG && _d("Slave replication thread");
if ( $type ne 'all' ) {
my $state = $query->{State} || $query->{state} || '';
if ( $state =~ m/^init|end$/ ) {
MKDEBUG && _d("Special state:", $state);
$match = 1;
}
else {
my ($slave_sql) = $state =~ m/
^(Waiting\sfor\sthe\snext\sevent
|Reading\sevent\sfrom\sthe\srelay\slog
|Has\sread\sall\srelay\slog;\swaiting
|Making\stemp\sfile
|Waiting\sfor\sslave\smutex\son\sexit)/xi;
$match = $type eq 'slave_sql' && $slave_sql ? 1
: $type eq 'slave_io' && !$slave_sql ? 1
: 0;
}
}
else {
$match = 1;
}
}
else {
MKDEBUG && _d('Not system user');
}
if ( !defined $args{check_known_ids} || $args{check_known_ids} ) {
my $id = $query->{Id} || $query->{id};
if ( $match ) {
$self->{replication_thread}->{$id} = 1;
}
else {
if ( $self->{replication_thread}->{$id} ) {
MKDEBUG && _d("Thread ID is a known replication thread ID");
$match = 1;
}
}
}
}
MKDEBUG && _d('Matches', $type, 'replication thread:',
($match ? 'yes' : 'no'), '; match:', $match);
return $match;
}
sub get_replication_filters {
my ( $self, %args ) = @_;
my @required_args = qw(dbh);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($dbh) = @args{@required_args};
my %filters = ();
my $status = $self->get_master_status($dbh);
if ( $status ) {
map { $filters{$_} = $status->{$_} }
grep { defined $status->{$_} && $status->{$_} ne '' }
qw(
binlog_do_db
binlog_ignore_db
);
}
$status = $self->get_slave_status($dbh);
if ( $status ) {
map { $filters{$_} = $status->{$_} }
grep { defined $status->{$_} && $status->{$_} ne '' }
qw(
replicate_do_db
replicate_ignore_db
replicate_do_table
replicate_ignore_table
replicate_wild_do_table
replicate_wild_ignore_table
);
my $sql = "SHOW VARIABLES LIKE 'slave_skip_errors'";
MKDEBUG && _d($dbh, $sql);
my $row = $dbh->selectrow_arrayref($sql);
$filters{slave_skip_errors} = $row->[1] if $row->[1] && $row->[1] ne 'OFF';
}
return \%filters;
}
sub pos_to_string {
my ( $self, $pos ) = @_;
my $fmt = '%s/%020d';
return sprintf($fmt, @{$pos}{qw(file position)});
}
sub reset_known_replication_threads {
my ( $self ) = @_;
$self->{replication_thread} = {};
return;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
# ###########################################################################
# End MasterSlave package
# ###########################################################################
# ###########################################################################
# OptionParser package 7102
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the SVN repository at,
# trunk/common/OptionParser.pm
# trunk/common/t/OptionParser.t
# See http://code.google.com/p/maatkit/wiki/Developers for more information.
# ###########################################################################
package OptionParser;
use strict;
use warnings FATAL => 'all';
use List::Util qw(max);
use English qw(-no_match_vars);
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
use Getopt::Long;
my $POD_link_re = '[LC]<"?([^">]+)"?>';
sub new {
my ( $class, %args ) = @_;
my @required_args = qw();
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($program_name) = $PROGRAM_NAME =~ m/([.A-Za-z-]+)$/;
$program_name ||= $PROGRAM_NAME;
my $home = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
my %attributes = (
'type' => 1,
'short form' => 1,
'group' => 1,
'default' => 1,
'cumulative' => 1,
'negatable' => 1,
);
my $self = {
head1 => 'OPTIONS', # These args are used internally
skip_rules => 0, # to instantiate another Option-
item => '--(.*)', # Parser obj that parses the
attributes => \%attributes, # DSN OPTIONS section. Tools
parse_attributes => \&_parse_attribs, # don't tinker with these args.
%args,
strict => 1, # disabled by a special rule
program_name => $program_name,
opts => {},
got_opts => 0,
short_opts => {},
defaults => {},
groups => {},
allowed_groups => {},
errors => [],
rules => [], # desc of rules for --help
mutex => [], # rule: opts are mutually exclusive
atleast1 => [], # rule: at least one opt is required
disables => {}, # rule: opt disables other opts
defaults_to => {}, # rule: opt defaults to value of other opt
DSNParser => undef,
default_files => [
"/etc/maatkit/maatkit.conf",
"/etc/maatkit/$program_name.conf",
"$home/.maatkit.conf",
"$home/.$program_name.conf",
],
types => {
string => 's', # standard Getopt type
int => 'i', # standard Getopt type
float => 'f', # standard Getopt type
Hash => 'H', # hash, formed from a comma-separated list
hash => 'h', # hash as above, but only if a value is given
Array => 'A', # array, similar to Hash
array => 'a', # array, similar to hash
DSN => 'd', # DSN
size => 'z', # size with kMG suffix (powers of 2^10)
time => 'm', # time, with an optional suffix of s/h/m/d
},
};
return bless $self, $class;
}
sub get_specs {
my ( $self, $file ) = @_;
$file ||= $self->{file} || __FILE__;
my @specs = $self->_pod_to_specs($file);
$self->_parse_specs(@specs);
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
my $contents = do { local $/ = undef; <$fh> };
close $fh;
if ( $contents =~ m/^=head1 DSN OPTIONS/m ) {
MKDEBUG && _d('Parsing DSN OPTIONS');
my $dsn_attribs = {
dsn => 1,
copy => 1,
};
my $parse_dsn_attribs = sub {
my ( $self, $option, $attribs ) = @_;
map {
my $val = $attribs->{$_};
if ( $val ) {
$val = $val eq 'yes' ? 1
: $val eq 'no' ? 0
: $val;
$attribs->{$_} = $val;
}
} keys %$attribs;
return {
key => $option,
%$attribs,
};
};
my $dsn_o = new OptionParser(
description => 'DSN OPTIONS',
head1 => 'DSN OPTIONS',
dsn => 0, # XXX don't infinitely recurse!
item => '\* (.)', # key opts are a single character
skip_rules => 1, # no rules before opts
attributes => $dsn_attribs,
parse_attributes => $parse_dsn_attribs,
);
my @dsn_opts = map {
my $opts = {
key => $_->{spec}->{key},
dsn => $_->{spec}->{dsn},
copy => $_->{spec}->{copy},
desc => $_->{desc},
};
$opts;
} $dsn_o->_pod_to_specs($file);
$self->{DSNParser} = DSNParser->new(opts => \@dsn_opts);
}
return;
}
sub DSNParser {
my ( $self ) = @_;
return $self->{DSNParser};
};
sub get_defaults_files {
my ( $self ) = @_;
return @{$self->{default_files}};
}
sub _pod_to_specs {
my ( $self, $file ) = @_;
$file ||= $self->{file} || __FILE__;
open my $fh, '<', $file or die "Cannot open $file: $OS_ERROR";
my @specs = ();
my @rules = ();
my $para;
local $INPUT_RECORD_SEPARATOR = '';
while ( $para = <$fh> ) {
next unless $para =~ m/^=head1 $self->{head1}/;
last;
}
while ( $para = <$fh> ) {
last if $para =~ m/^=over/;
next if $self->{skip_rules};
chomp $para;
$para =~ s/\s+/ /g;
$para =~ s/$POD_link_re/$1/go;
MKDEBUG && _d('Option rule:', $para);
push @rules, $para;
}
die "POD has no $self->{head1} section" unless $para;