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ZCS-10242 : Mariadb master-master setup #95

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ZCS-10242 : Mariadb master-master setup #95

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ZCS-10242:Mariadb master-master setup
umagmrit Nov 23, 2021
ffc2da0
ZCS-10242:Added zmmysqlmmr-status
umagmrit Nov 24, 2021
02def64
ZCS-10242:changes to Mariadb master-master setup scripts
umagmrit Nov 30, 2021
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125 changes: 125 additions & 0 deletions src/libexec/zmmysqlenable-mmr
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#
# ***** BEGIN LICENSE BLOCK *****
# Zimbra Collaboration Suite Server
# Copyright (C) 2010, 2011, 2013, 2014, 2015, 2016 Synacor, Inc.
#
# 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 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 <https://www.gnu.org/licenses/>.
# ***** END LICENSE BLOCK *****
#

if [ x`whoami` != "xzimbra" ]; then
echo "Error: must be run as user zimbra"
exit 1
fi

source /opt/zimbra/bin/zmshutil || exit 1
zmsetvars -f

#
# Sanity checks
#
zmassert -x /opt/zimbra/common/bin/mysqladmin
zmassert -x /opt/zimbra/common/bin/mysql
zmassert -x /opt/zimbra/bin/zmlocalconfig
zmassert -x /opt/zimbra/bin/zmcontrol
zmassert -r ${zimbra_db_directory}/db.sql
if [ ! -x /opt/zimbra/common/bin/mysql ]; then
echo "Mysql not found on this host"
exit 1
fi

configure_mysql_mycnf(){
mysql_mycnf="`zmlocalconfig -s -m nokey mysql_mycnf`"
backup_date=`date +%Y-%m-%d`
/opt/zimbra/libexec/zminiutil --backup=.pre-${backup_date}-bind-address --section=mysqld --key=bind-address --unset $mysql_mycnf
/opt/zimbra/libexec/zminiutil --backup=.pre-${backup_date}-server-id --section=mysqld --key=server-id --set --value=$2 $mysql_mycnf
/opt/zimbra/libexec/zminiutil --backup=.pre-${backup_date}-log_bin --section=mysqld --key=log_bin --set --value=/opt/zimbra/log/mysql-bin.log $mysql_mycnf
/opt/zimbra/libexec/zminiutil --backup=.pre-${backup_date}-binlog_format --section=mysqld --key=binlog_format --set --value=row $mysql_mycnf
server_id="`/opt/zimbra/libexec/zminiutil --section=mysqld --key=binlog_format --get --key=server-id $mysql_mycnf`"
if [ -z "$server_id" ]
then
echo "Error: Failed to configure Server ID $server_id for $1"
exit 1
else
echo "Info: Server ID $server_id is configured for $1"
fi
}

check_server_id(){
mysql_mycnf="`zmlocalconfig -s -m nokey mysql_mycnf`"
server_id="`/opt/zimbra/libexec/zminiutil --section=mysqld --key=binlog_format --get --key=server-id $mysql_mycnf`"
maridb_primary=$1
if [ ! -z "$server_id" ]
then
echo "Error: Server ID $server_id is already configured for $maridb_primary"
exit 1
fi
}

create_replication_user(){
mysql_replicator_password="`zmlocalconfig -s -m nokey mysql_replicator_password 2>/dev/null`"
if [ -z "$mysql_replicator_password" ]
then
zmlocalconfig -r -f -e mysql_replicator_password
fi
mysql_replicator_password="`zmlocalconfig -s -m nokey mysql_replicator_password`"
mysql -e "create user if not exists 'zmreplicator'@'%' identified by '$mysql_replicator_password';"
mysql -e "grant replication slave on *.* to 'zmreplicator'@'%';"
mysql -e "flush privileges;"
}

restart_mysql(){
mysql.server restart
}

check_data_before_start(){
return_value=""
maridb_primary="`zmlocalconfig -s -m nokey $1 2>/dev/null`"
if [ -z "$maridb_primary" ]; then
return_value="false"
echo "$return_value"
else
return_value="true"
echo "$return_value"
fi
}

maridb_primary_1=$(check_data_before_start maridb_primary1)
maridb_primary_2=$(check_data_before_start maridb_primary2)
if [ "${maridb_primary_1}" = "false" ] || [ "${maridb_primary_2}" = "false" ]; then
echo "Error: maridb_primary1 and maridb_primary2 are not found in zmlocalconfig"
echo "Error: please first set maridb_primary1 and maridb_primary2 using zmlocalconfig"
exit 1
fi
maridb_primary1="`zmlocalconfig -s -m nokey maridb_primary1| cut -f1 -d :`"
maridb_primary2="`zmlocalconfig -s -m nokey maridb_primary2| cut -f1 -d :`"
ip_address=$(hostname -I)
ip_address=(${ip_address//" "/ })
for ip in "${ip_address[@]}";
do
# Assign server-id=1 for maridb_primary1
if [ "$ip" == "$maridb_primary1" ]; then
check_server_id $maridb_primary1
server_id=1
configure_mysql_mycnf $maridb_primary1 $server_id
create_replication_user
restart_mysql
fi

# Assign server-id=2 for maridb_primary2
if [ "$ip" == "$maridb_primary2" ]; then
check_server_id $maridb_primary2
server_id=2
configure_mysql_mycnf $maridb_primary2 $server_id
create_replication_user
restart_mysql
fi
done
108 changes: 108 additions & 0 deletions src/libexec/zmmysqlmmr-status
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Original file line number Diff line number Diff line change
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#
# ***** BEGIN LICENSE BLOCK *****
# Zimbra Collaboration Suite Server
# Copyright (C) 2010, 2011, 2013, 2014, 2015, 2016 Synacor, Inc.
#
# 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 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 <https://www.gnu.org/licenses/>.
# ***** END LICENSE BLOCK *****
#

if [ x`whoami` != "xzimbra" ]; then
echo "Error: must be run as user zimbra"
exit 1
fi

source /opt/zimbra/bin/zmshutil || exit 1
zmsetvars -f

#
# Sanity checks
#
zmassert -x /opt/zimbra/common/bin/mysqladmin
zmassert -x /opt/zimbra/common/bin/mysql
zmassert -x /opt/zimbra/bin/zmlocalconfig
zmassert -x /opt/zimbra/bin/zmcontrol
zmassert -r ${zimbra_db_directory}/db.sql
if [ ! -x /opt/zimbra/common/bin/mysql ]; then
echo "Mysql not found on this host"
exit 1
fi

check_server_id(){
mysql_mycnf="`zmlocalconfig -s -m nokey mysql_mycnf`"
server_id="`/opt/zimbra/libexec/zminiutil --section=mysqld --key=binlog_format --get --key=server-id $mysql_mycnf`"
maridb_master=$1
echo "Server information:"
if [ -z "$server_id" ]; then
echo "Mariadb Primary1 is $maridb_primary1_host"
echo "Mariadb Primary2 is $maridb_primary2_host"
echo "Server ID is not yet configured for $maridb_master"
exit 1
else
echo "ServerID is $server_id"
echo "Server is $maridb_master"
fi
}

replication_info(){
echo "------------------------"
echo "Replication information:"
Slave_IO_Running="`mysql 2>/dev/null -e "SHOW SLAVE STATUS\G;" | grep Slave_IO_Running| tail -n 1 | awk {'print $2'}`"
echo "Slave_IO_Running : $Slave_IO_Running"
Slave_SQL_Running="`mysql 2>/dev/null -e "SHOW SLAVE STATUS\G;" | grep Slave_SQL_Running| tail -n 1 | awk {'print $2'}`"
echo "Slave_SQL_Running : $Slave_SQL_Running"
Read_Master_Log_Pos="`mysql 2>/dev/null -e "SHOW SLAVE STATUS\G;" | grep Read_Master_Log_Pos| tail -n 1 | awk {'print $2'}`"
echo "Read_Master_Log_Pos : $Read_Master_Log_Pos"
Exec_Master_Log_Pos="`mysql 2>/dev/null -e "SHOW SLAVE STATUS\G;" | grep Exec_Master_Log_Pos| tail -n 1 | awk {'print $2'}`"
echo "Exec_Master_Log_Pos : $Exec_Master_Log_Pos"
if [ "$Read_Master_Log_Pos" == "$Exec_Master_Log_Pos" ]; then
echo "Read_Master_Log_Pos and Exec_Master_Log_Pos are in sync and databases also are in sync"
else
echo "Read_Master_Log_Pos and Exec_Master_Log_Pos are not in sync, so databases are not in sync. Something wrong with replication"
fi
}
check_data_before_start(){
return_value=""
maridb_primary="`zmlocalconfig -s -m nokey $1 2>/dev/null`"
if [ -z "$maridb_primary" ]; then
return_value="false"
echo "$return_value"
else
return_value="true"
echo "$return_value"
fi
}

maridb_primary_1=$(check_data_before_start maridb_primary1)
maridb_primary_2=$(check_data_before_start maridb_primary2)
if [ "${maridb_primary_1}" = "false" ] || [ "${maridb_primary_2}" = "false" ]; then
echo "Error: maridb_primary1 and maridb_primary2 are not found in zmlocalconfig"
echo "Error: please first set maridb_primary1 and maridb_primary2 using zmlocalconfig"
exit 1
fi
maridb_primary1_host="`zmlocalconfig -s -m nokey maridb_primary1| cut -f1 -d :`"
maridb_primary1_port="`zmlocalconfig -s -m nokey maridb_primary1| cut -f2 -d :`"
maridb_primary2_host="`zmlocalconfig -s -m nokey maridb_primary2| cut -f1 -d :`"
maridb_primary2_port="`zmlocalconfig -s -m nokey maridb_primary2| cut -f2 -d :`"
ip_address=$(hostname -I)
ip_address=(${ip_address//" "/ })
for ip in "${ip_address[@]}";
do
if [ "$ip" == "$maridb_primary1_host" ]; then
check_server_id $maridb_primary1_host
replication_info
fi

if [ "$ip" == "$maridb_primary2_host" ]; then
check_server_id $maridb_primary2_host
replication_info
fi
done
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