diff --git a/database/mysql/mode/replicationmastermaster.pm b/database/mysql/mode/replicationmastermaster.pm
new file mode 100644
index 000000000..9659c8358
--- /dev/null
+++ b/database/mysql/mode/replicationmastermaster.pm
@@ -0,0 +1,286 @@
+################################################################################
+# Copyright 2005-2013 MERETHIS
+# Centreon is developped by : Julien Mathis and Romain Le Merlus under
+# GPL Licence 2.0.
+# 
+# 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.
+# 
+# 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, see <http://www.gnu.org/licenses>.
+# 
+# Linking this program statically or dynamically with other modules is making a 
+# combined work based on this program. Thus, the terms and conditions of the GNU 
+# General Public License cover the whole combination.
+# 
+# As a special exception, the copyright holders of this program give MERETHIS 
+# permission to link this program with independent modules to produce an executable, 
+# regardless of the license terms of these independent modules, and to copy and 
+# distribute the resulting executable under terms of MERETHIS choice, provided that 
+# MERETHIS also meet, for each linked independent module, the terms  and conditions 
+# of the license of that module. An independent module is a module which is not 
+# derived from this program. If you modify this program, you may extend this 
+# exception to your version of the program, but you are not obliged to do so. If you
+# do not wish to do so, delete this exception statement from your version.
+# 
+# For more information : contact@centreon.com
+# Authors : Quentin Garnier <qgarnier@merethis.com>
+#
+####################################################################################
+
+package database::mysql::mode::replicationmastermaster;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                { 
+                                  "warning:s"               => { name => 'warning', },
+                                  "critical:s"              => { name => 'critical', },
+                                });
+
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+
+    if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
+       $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
+       $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
+       $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
+       $self->{output}->option_exit();
+    }
+}
+
+sub check_replication {
+    my ($self, %options) = @_;
+    
+    my ($master, $slave) = ($options{master}, $options{slave});
+    
+    my ($slave_status, $slave_status_error) = (0, "");
+    my ($position_status, $position_status_error) = (0, "");
+    
+    my ($total_srv, $last_error);
+
+    my ($io_thread_status_srv, $sql_thread_status_srv);
+    if ($self->{$slave->get_id()}->{exit} != -1) {
+        $slave->query(query => q{
+            SHOW SLAVE STATUS
+        });
+        my $result = $slave->fetchrow_hashref();
+        my $slave_io_running = $result->{Slave_IO_Running};
+        my $slave_sql_running = $result->{Slave_SQL_Running};
+        $last_error = $result->{Last_Error};
+        
+        if (defined($slave_io_running) && $slave_io_running =~ /^yes$/i) {
+            $io_thread_status_srv = 0;
+        } else {
+            $io_thread_status_srv = 1;
+        }
+        if (defined($slave_sql_running) && $slave_sql_running =~ /^yes$/i) {
+            $sql_thread_status_srv = 0;
+        } else {
+            $sql_thread_status_srv = 1;
+        }
+    } else {
+        $io_thread_status_srv = 100;
+        $sql_thread_status_srv = 100;
+    }
+
+    $total_srv = $io_thread_status_srv + $sql_thread_status_srv;
+    
+    # Check if a thread is down
+    if ($total_srv == 1) {
+        $slave_status = -1;
+        $slave_status_error = "A Replication thread is down on '" . $slave->get_id() . "'.";
+        if ($sql_thread_status_srv != 0) {
+            if (defined($last_error) && $last_error ne "") {
+                $slave_status = 1;
+                $slave_status_error .= " SQL Thread is stopped because of an error (error='" . $last_error . "').";
+            }
+        }
+    }
+    
+    # Check if we need to SKIP
+    if ($io_thread_status_srv == 100) {
+        $slave_status = -1;
+        $slave_status_error .= " Skip check on '" . $slave->get_id() . "'.";
+    }
+
+    if ($total_srv > 1) {
+        $slave_status = 1;
+        $slave_status_error .= " not a slave '"  . $slave->get_id() . "' (maybe because we cannot check the server).";
+    }
+    
+    ####
+    # Check Slave position
+    ####    
+    if ($self->{$master->get_id()}->{exit} == -1) {
+        $position_status = -1;
+        $position_status_error = "Can't get master position on '" . $master->get_id() . "'.";
+    } else {
+        # Get Master Position
+        $master->query(query => q{
+            SHOW MASTER STATUS
+        });
+        my $result = $master->fetchrow_hashref();
+        my $master_file = $result->{File};
+        my $master_position = $result->{Position};
+        
+        $slave->query(query => q{
+            SHOW SLAVE STATUS
+        });
+        my $result2 = $slave->fetchrow_hashref();
+        my $slave_file = $result2->{Master_Log_File}; # 'Master_Log_File'
+        my $slave_position = $result2->{Read_Master_Log_Pos}; # 'Read_Master_Log_Pos'
+        my $num_sec_lates = $result2->{Seconds_Behind_Master};
+
+        my $exit_code_sec = $self->{perfdata}->threshold_check(value => $num_sec_lates, threshold => [ { label => 'critical', 'exit_litteral' => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
+        if (!$self->{output}->is_status(value => $exit_code_sec, compare => 'ok', litteral => 1)) {
+            $self->{output}->output_add(severity => $exit_code_sec,
+                                        short_msg => sprintf("Slave '%s' has %d seconds latency behind master", $slave->get_id(), $num_sec_lates));
+        }
+        $self->{output}->perfdata_add(label => 'slave_latency_' . $slave->get_id(), unit => 's',
+                                      value => $num_sec_lates,
+                                      warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
+                                      critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
+                                      min => 0);
+        
+        my $slave_sql_thread_ko = 1;
+        my $slave_sql_thread_warning = 1;
+        my $slave_sql_thread_ok = 1;
+        
+        $slave->query(query => q{
+            SHOW FULL PROCESSLIST
+        });
+        while ((my $row = $slave->fetchrow_hashref())) {
+            my $state = $row->{State};
+            $slave_sql_thread_ko = 0 if (defined($state) && $state =~ /^(Waiting to reconnect after a failed binlog dump request|Connecting to master|Reconnecting after a failed binlog dump request|Waiting to reconnect after a failed master event read|Waiting for the slave SQL thread to free enough relay log space)$/i);
+            $slave_sql_thread_warning = 0 if (defined($state) && $state =~ /^Waiting for the next event in relay log|Reading event from the relay log$/i);
+            $slave_sql_thread_ok = 0 if (defined($state) && $state =~ /^Has read all relay log; waiting for the slave I\/O thread to update it$/i);
+        }
+        
+        if ($slave_sql_thread_ko == 0) {
+            $position_status = 1;
+            $position_status_error .= " Slave replication has connection issue with the master.";
+        } elsif (($master_file ne $slave_file || $master_position != $slave_position) && $slave_sql_thread_warning == 0) {
+            $position_status = -1;
+            $position_status_error .= " Slave replication is late but it's progressing..";
+        } elsif (($master_file ne $slave_file || $master_position != $slave_position) && $slave_sql_thread_ok == 0) {
+            $position_status = -1;
+            $position_status_error .= " Slave replication is late but it's progressing..";
+        }
+    }
+
+    $self->replication_add($slave_status, "Slave Thread Status '" . $slave->get_id() . "'", $slave_status_error);
+	$self->replication_add($position_status, "Position Status '" . $slave->get_id() . "'", $position_status_error);
+}
+
+sub run {
+    my ($self, %options) = @_;
+    # $options{sql} = sqlmode object
+    
+    if (ref($options{sql}) ne 'ARRAY') {
+        $self->{output}->add_option_msg(short_msg => "Need to use --multiple options.");
+        $self->{output}->option_exit();
+    }
+    if (scalar(@{$options{sql}}) < 2) {
+        $self->{output}->add_option_msg(short_msg => "Need to specify two MySQL Server.");
+        $self->{output}->option_exit();
+    }
+
+    my ($msg_error1, $msg_error2);
+    my ($sql_one, $sql_two) = @{$options{sql}};
+    
+    ($self->{$sql_one->get_id()}->{exit}, $msg_error1) = $sql_one->connect(dontquit => 1);
+    ($self->{$sql_two->get_id()}->{exit}, $msg_error2) = $sql_two->connect(dontquit => 1);
+    $self->{output}->output_add(severity => 'OK',
+                                short_msg => "No problems. Replication is ok.");
+    if ($self->{$sql_one->get_id()}->{exit} == -1) {
+        $self->{output}->output_add(severity => 'CRITICAL',
+                                    short_msg => "Connection Status '" . $sql_one->get_id() . "': " . $msg_error1);
+    } else {
+        $self->{output}->output_add(long_msg => "Connection Status '" . $sql_one->get_id() . "' [OK]");
+    }
+    if ($self->{$sql_two->get_id()}->{exit} == -1) {
+        $self->{output}->output_add(severity => 'CRITICAL',
+                                    short_msg => "Connection Status '" . $sql_two->get_id() . "': " . $msg_error2);
+    } else {
+        $self->{output}->output_add(long_msg => "Connection Status '" . $sql_two->get_id() . "' [OK]");
+    }
+    
+    $self->check_replication(master => $sql_one, slave => $sql_two);
+    $self->check_replication(master => $sql_two, slave => $sql_one);
+    
+    $self->{output}->display();
+    $self->{output}->exit();
+}
+
+sub replication_add {
+	my ($self, $lstate, $str_display, $lerr) = @_;
+	my $status;
+    my $status_msg;
+
+	if ($lstate == 0) {
+		$status = 'OK';
+	} elsif ($lstate == -1) {
+		$status = 'WARNING';
+	} elsif ($lstate == -2) {
+		$status = 'CRITICAL';
+        $status_msg = 'SKIP';
+	} else {
+		$status = 'CRITICAL';
+	}
+
+    my $output;
+	if (defined($lerr) && $lerr ne "") {
+		$output = $str_display . " [" . (defined($status_msg) ? $status_msg : $status) . "] [" . $lerr . "]";
+	} else {
+		$output = $str_display . " [" . (defined($status_msg) ? $status_msg : $status) . "]";
+	}
+    if (!$self->{output}->is_status(value => $status, compare => 'ok', litteral => 1)) {
+        $self->{output}->output_add(severity => $status,
+                                    short_msg => $output);
+    }
+    
+	$self->{output}->output_add(long_msg => $output);
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check MySQL replication master/master (need to use --multiple).
+
+=over 8
+
+=item B<--warning>
+
+Threshold warning in seconds (slave latency).
+
+=item B<--critical>
+
+Threshold critical in seconds (slave latency).
+
+=back
+
+=cut
diff --git a/database/mysql/plugin.pm b/database/mysql/plugin.pm
index d220585b4..d8293dbcf 100644
--- a/database/mysql/plugin.pm
+++ b/database/mysql/plugin.pm
@@ -59,6 +59,7 @@ sub new {
                          'myisam-keycache-hitrate'      => 'database::mysql::mode::myisamkeycachehitrate',
                          'qcache-hitrate'               => 'database::mysql::mode::qcachehitrate',
                          'replication-master-slave'     => 'database::mysql::mode::replicationmasterslave',
+                         'replication-master-master'    => 'database::mysql::mode::replicationmastermaster',
                          );
     $self->{sql_modes}{mysqlcmd} = 'database::mysql::mysqlcmd';