准备三台主机
192.168.200.10
192.168.200.11
192.168.200.12
所有机器上的操作
Systemctl stop firewalld
Setenforce 0
Iptables -F
在Mysql master 上配置NTP时间同步服务器
三台主机都安装 mariadb mariadb-server ntp
yum -y install mariadb
yum -y install mariadb-server
yum -y install ntp
[root@localhost ~]# ntpdate 192.168.200.10
在第一台主机上
vim /etc/ntp.conf 添加两行
server 127.127.1.0
fudge 127.127.1.0 straturn 8
[root@localhost ~]# systemctl start ntpdate
Job for ntpdate.service failed. See 'systemctl status ntpdate.service' and 'journalctl -xn' for details.
[root@localhost ~]# systemctl enable ntp
Failed to issue method call: No such file or directory
[root@localhost ~]# systemctl start ntp
Failed to issue method call: Unit ntp.service failed to load: No such file or directory.
[root@localhost ~]# vim /etc/my.cnf
[mysqld]
server-id=1
log-bin=mysql-binlog
log-slave-updates=true
[root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# netstat -lnpt | grep :3306
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 38391/mysqld
[root@localhost ~]# mysql
MariaDB [(none)]> grant replication slave on *.* to 'myslave'@'192.168.200.1_' identified by '123456';
Query OK, 0 rows affected (0.16 sec)
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show master status;
+---------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+---------------------+----------+--------------+------------------+
| mysql-binlog.000001 | 478 | | |
+---------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.38 sec)
启动NTP服务
[root@localhost ~]# systemctl enable ntp
Failed to issue method call: No such file or directory
[root@localhost ~]# systemctl start ntp
Failed to issue method call: Unit ntp.service failed to load: No such file or directory.
另外两台主机192.168.200.11
192.168.200.12
从库连接主库进行测试，如果连接成功说明主库配置成功
[root@localhost ~]# mysql -u myslave -p123456 -h192.168.200.10
修改MYSQL配置文件（192.168.200.11）
[root@localhost ~]# vim /etc/my.cnf
[mysqld]
server-id=2
log-bin=mysql-binlog
log-slave-updates=true
修改MYSQL配置文件（192.168.200.12）
[root@localhost ~]# vim /etc/my.cnf
[mysqld]
server-id=3
log-bin=mysql-binlog
log-slave-updates=true
修改完成后重启数据库
[root@localhost ~]# systemctl restart mariadb
在slave服务器授权，启动从库，进行主从数据同步
[root@localhost ~]# mysql
MariaDB [(none)]> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
MariaDB [(none)]> CHANGE MASTER TO MASTER_HOST='192.168.200.10', MASTER_USER='myslave', MASTER_PASSWORD='123456',MASTER_LOG_FILE='mysql-binlog.000001', MASTER_LOG_POS=478;
Query OK, 0 rows affected (0.03 sec)
MariaDB [(none)]> start slave;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show slave statusG
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.200.10
Master_User: myslave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-binlog.000001
Read_Master_Log_Pos: 478
Relay_Log_File: relay-log-bin.000002
Relay_Log_Pos: 532
Relay_Master_Log_File: mysql-binlog.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 478
Relay_Log_Space: 824
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
1 row in set (0.10 sec)
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.38 sec)