/usr/bin/masterha_master_switch is in mha4mysql-manager 0.55-1.
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 | #!/usr/bin/env perl
# Copyright (C) 2011 DeNA Co.,Ltd.
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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 General Public License for more details.
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
use strict;
use warnings FATAL => 'all';
use Getopt::Long qw(:config pass_through);
use Pod::Usage;
use MHA::MasterMonitor;
use MHA::MasterFailover;
use MHA::MasterRotate;
use MHA::ManagerConst;
my $master_state = "";
my $help;
my $version;
$| = 1;
GetOptions(
'help' => \$help,
'version' => \$version,
'master_state=s' => \$master_state
);
my $exit_code = 1;
if ($version) {
print "masterha_master_switch version $MHA::ManagerConst::VERSION.\n";
exit 0;
}
if ($help) {
pod2usage(0);
}
if ( $master_state eq "dead" ) {
$exit_code = MHA::MasterFailover::main(@ARGV);
}
elsif ( $master_state eq "alive" ) {
$exit_code = MHA::MasterRotate::main(@ARGV);
}
else {
pod2usage(1);
}
exit $exit_code;
# ############################################################################
# Documentation
# ############################################################################
=pod
=head1 NAME
masterha_master_switch - Switching MySQL master server to one of other slave servers
=head1 SYNOPSIS
# For master failover
masterha_master_switch --master_state=dead --global_conf=/etc/masterha_default.cnf --conf=/usr/local/masterha/conf/app1.cnf --dead_master_host=host1
# For online master switch
masterha_master_switch --master_state=alive --global_conf=/etc/masterha_default.cnf --conf=/usr/local/masterha/conf/app1.cnf
See online reference (http://code.google.com/p/mysql-master-ha/wiki/masterha_master_switch) for details.
=head1 DESCRIPTION
See online reference (http://code.google.com/p/mysql-master-ha/wiki/masterha_master_switch) for details.
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