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master1IP地址:192.168.144.167
master2IP地址:192.168.144.151
slave1IP地址:192.168.144.168
slave2IP地址:192.168.144.145
monitorIP地址:192.168.144.164
[root@master1 ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo //获取源地址
[root@master1 ~]# yum -y install epel-release //安装epel源
[root@master1 ~]# yum clean all && yum makecache //yum缓存清空
[root@master1 ~]# yum -y install mariadb-server mariadb //安装mariadb数据库
[root@master1 ~]# systemctl stop firewalld.service //关闭防火墙
[root@master1 ~]# setenforce 0
[root@master1 ~]# systemctl start mariadb.service //开启数据库
[root@master1 ~]# vim /etc/my.cnf //进入编辑配置文件
[mysqld]
log_error=/var/lib/mysql/mysql.err //错误日志文件
log=/var/lib/mysql/mysql_log.log //主从日志存放位置
log_slow_queries=/var/lib/mysql_slow_queris.log //man日志
binlog-ignore-db=mysql,information_schema //二进制文件
character_set_server=utf8 //字符集
log_bin=mysql_bin //二进制日志文件
server_id=11 //服务id(不能相同)
log_slave_updates=true //允许从服务器更新
sync_binlog=1 //同步日志
auto_increment_increment=2 //自增列
auto_increment_offset=1 //起始点
[root@master1 ~]# systemctl restart mariadb.service //重启数据库
[root@master1 ~]# scp /etc/my.cnf root@192.168.144.151:/etc/ (server-id=22)
[root@master1 ~]# scp /etc/my.cnf root@192.168.144.168:/etc/ (server-id=33)
[root@master1 ~]# scp /etc/my.cnf root@192.168.144.145:/etc/ (server-id=44)
[root@master1 ~]# netstat -anpt | grep 3306 //查看端口3306
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 4235/mysqld
[root@master1 ~]# mysql ##进入数据库
MariaDB [(none)]> show master status; ##查看主服务器的状态信息
+------------------+----------+--------------+--------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+--------------------------+
| mysql_bin.000001 | 245 | | mysql,information_schema |
+------------------+----------+--------------+--------------------------+
1 row in set (0.00 sec)
MariaDB [(none)]> grant replication slave on *.* to 'replication'@'192.168.144.%' identified by '123456'; //授权给144段的网段复制的权限用户名replication密码123456
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> change master to master_host='192.168.144.167',master_user='replication',master_password='123456',master_log_file='mysql_bin.000001',master_log_pos=245; //在master2上同步master1服务器
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant replication slave on *.* to 'replication'@'192.168.144.%' identified by '123456'; //在master2上授权复制权限
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show master status; //查看master2的服务器的状态信息
+------------------+----------+--------------+--------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+--------------------------+
| mysql_bin.000001 | 410 | | mysql,information_schema |
+------------------+----------+--------------+--------------------------+
1 row in set (0.00 sec)
MariaDB [(none)]> flush privileges; //刷新权限
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> change master to master_host='192.168.144.151',master_user='replication',master_password='123456',master_log_file='mysql_bin.000001',master_log_pos=410; //master1同步master2服务器数据库
Query OK, 0 rows affected (0.03 sec)
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> start slave; //开启同步
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show slave status\G; //查看同步状态信息
...
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...
MariaDB [(none)]> change master to master_host='192.168.144.167',master_user='replication',master_password='123456',master_log_file='mysql_bin.000001',master_log_pos=245; //在从服务器上同步master1主服务器
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> flush privileges; //刷新权限
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> start slave; //开启同步
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show slave status\G; //查看同步的状态信息
...
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...
MariaDB [(none)]> create database school; //创建数据库
Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> show databases; //查看数据库
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| school |
| test |
+--------------------+
5 rows in set (0.00 sec)
MariaDB [(none)]> show databases; //实现主主,主从同步
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| school |
| test |
+--------------------+
5 rows in set (0.00 sec)
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum -y install epel-release
yum clean all && yum makecache
yum -y install mysql-mmm*
yum -y install mysql-mmm*
[root@master1 ~]# vim /etc/mysql-mmm/mmm_common.conf //所有主机上都要配置,直接复制多份
……
cluster_interface ens33 //修改网卡
…
replication_user replication //修改用户名
replication_password 123456 //密码
agent_user mmm_agent
agent_password 123456 //密码
ip 192.168.144.167 //master1地址
mode master
peer db2
ip 192.168.144.151 //master2地址
mode master
peer db1
ip 192.168.144.168 //slave1地址
mode slave
ip 192.168.144.145 //slave2地址
mode slave
hosts db1, db2 ##写服务器虚拟ip
ips 192.168.144.250
mode exclusive
hosts db3, db4 ##读服务器虚拟ip
ips 192.168.144.251, 192.168.144.252
mode balanced
##复制到其他的服务器中
[root@master1 ~]# scp /etc/mysql-mmm/mmm_common.conf root@192.168.144.151:/etc/mysql-mmm/
root@192.168.144.151's password:
mmm_common.conf 100% 836 267.1KB/s 00:00
[root@master1 ~]# scp /etc/mysql-mmm/mmm_common.conf root@192.168.144.168:/etc/mysql-mmm/
root@192.168.144.168's password:
mmm_common.conf 100% 836 863.2KB/s 00:00
[root@master1 ~]# scp /etc/mysql-mmm/mmm_common.conf root@192.168.144.145:/etc/mysql-mmm/
root@192.168.144.145's password:
mmm_common.conf 100% 836 904.7KB/s 00:00
[root@master1 ~]# scp /etc/mysql-mmm/mmm_common.conf root@192.168.144.164:/etc/mysql-mmm/
[root@monitor ~]# vim /etc/mysql-mmm/mmm_mon.conf
monitor_user mmm_monitor
monitor_password 123456 ##修改monitor的密码
MariaDB [(none)]> grant super, replication client, process on *.* to 'mmm_agent'@'192.168.144.%' identified by '123456'; //授权代理
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant replication client on *.* to 'mmm_monitor'@'192.168.144.%' identified by '123456'; //授权监控
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> flush privileges; //刷新权限
Query OK, 0 rows affected (0.00 sec)
[root@master1 ~]# vim /etc/mysql-mmm/mmm_agent.conf
this db1 //根据规划进行逐一调整
[root@master2 ~]# vim /etc/mysql-mmm/mmm_agent.conf
this db2 //根据规划进行逐一调整
[root@slave1 ~]# vim /etc/mysql-mmm/mmm_agent.conf
this db3 //根据规划进行逐一调整
[root@slave2 ~]# vim /etc/mysql-mmm/mmm_agent.conf
this db4 //根据规划进行逐一调整
##所有数据库开启
[root@master1 ~]systemctl start mysql-mmm-agent.service //开启代理服务
[root@master1 ~]systemctl enable mysql-mmm-agent.service //加入开机自启动
[root@monitor ~]# vim /etc/mysql-mmm/mmm_mon.conf
ip 127.0.0.1
pid_path /run/mysql-mmm-monitor.pid
bin_path /usr/libexec/mysql-mmm
status_path /var/lib/mysql-mmm/mmm_mond.status
ping_ips 192.168.144.167,192.168.144.151,192.168.144.168,192.168.144.145 //所有数据库服务器地址
auto_set_online 10 //自动在线时间
[root@monitor ~]# systemctl stop firewalld.service //关闭防火墙
[root@monitor ~]# setenforce 0
[root@monitor ~]# systemctl start mysql-mmm-monitor.service /开启监控服务
[root@monitor ~]# mmm_control show //查看主从的飘逸地址
db1(192.168.144.167) master/ONLINE. Roles: writer(192.168.144.250)
db2(192.168.144.151) master/ONLINE. Roles:
db3(192.168.144.168) slave/ONLINE. Roles: reader(192.168.144.252)
db4(192.168.144.145) slave/ONLINE. Roles: reader(192.168.144.251)
[root@master1 ~]# systemctl stop mariadb.service //模拟停止master1服务器
[root@monitor ~]# mmm_control show
db1(192.168.144.167) master/HARD_OFFLINE. Roles:
db2(192.168.144.151) master/ONLINE. Roles: writer(192.168.144.250)
db3(192.168.144.168) slave/ONLINE. Roles: reader(192.168.144.252)
db4(192.168.144.145) slave/ONLINE. Roles: reader(192.168.144.251)
(重启master1数据库服务,虚拟地址不会被抢占到master1)
mmm_control checks all //需要各种OK
mmm_control move_role writer db1 //可以切换虚拟地址
[root@monitor ~]# yum install mysql -y
//master1服务器上授权monitor地址访问//
MariaDB [(none)]> grant all on *.* to 'testdba'@'192.168.144.164' identified by '123456';
##授权monitor地址访问
Query OK, 0 rows affected (0.01 sec)
MariaDB [(none)]> flush privileges; ##刷新权限
Query OK, 0 rows affected (0.00 sec)
[root@monitor ~]# mysql -utestdba -p -h 192.168.144.250 ##使用虚拟地址即可登录数据库
Enter password:
MariaDB [(none)]>