keepalived+nginx+tomcat+redis+mysql主主架构部署(6)

2.3 配置同步信息：

Master上：

#mysql>change master to master_host=‘10.200.36.167’,master_port=3306,master_user=‘root’,master_password=‘123456’,master_log_file=‘mysql-bin.000003’,master_log_pos=5094;

#mysql> start slave;

#mysql> show slave status\G;

显示有如下状态则正常：

mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.200.36.167
                  Master_User: root
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 5094
               Relay_Log_File: localhost-relay-bin.000006
                Relay_Log_Pos: 2408
        Relay_Master_Log_File: mysql-bin.000005
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: mysql,information_schema,performance_schema,test,zabbix
           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: 5094
              Relay_Log_Space: 2659
              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: 2
                  Master_UUID: 9be18158-3fc0-11e9-b3bc-00505694ed12
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind:
      Last_IO_Error_Timestamp:
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set: 9be18158-3fc0-11e9-b3bc-00505694ed12:1-14
            Executed_Gtid_Set: 9be18158-3fc0-11e9-b3bc-00505694ed12:1-14,
ae807b12-3fbf-11e9-bd3d-00505694bdbe:1-1620
                Auto_Position: 1
         Replicate_Rewrite_DB:
                 Channel_Name:
           Master_TLS_Version:
1 row in set (0.00 sec)

Backup上：

#mysql>change master to master_host=‘10.200.36.166’,master_port=3306,master_user=‘root’,master_password=‘123.com123.COM’,master_log_file=‘mysql-bin.000003’,master_log_pos=5094;

start slave;

mysql> show slave status\G;

显示有如下状态则正常：

mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.200.36.166
                  Master_User: root
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 5094
               Relay_Log_File: localhost-relay-bin.000006
                Relay_Log_Pos: 3315
        Relay_Master_Log_File: mysql-bin.000005
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: mysql,information_schema,performance_schema,test,zabbix
           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: 5094
              Relay_Log_Space: 3582
              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
                  Master_UUID: ae807b12-3fbf-11e9-bd3d-00505694bdbe
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind:
      Last_IO_Error_Timestamp:
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set: ae807b12-3fbf-11e9-bd3d-00505694bdbe:1-3:5-1620
            Executed_Gtid_Set: 9be18158-3fc0-11e9-b3bc-00505694ed12:1-14,
ae807b12-3fbf-11e9-bd3d-00505694bdbe:1-1620
                Auto_Position: 1
         Replicate_Rewrite_DB:
                 Channel_Name:
           Master_TLS_Version:
1 row in set (0.00 sec)

3.测试主从同步

3.1 在Master上创建一个测试同步效果

#mysql> show databases;

#mysql> create database test01;

#mysql> show databases;

3.2 到masterB查看是否已经同步创建

#mysql> show databases;

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| mytest             |
| sys                |
| test01             |
+--------------------+
5 rows in set (0.01 sec)

4. 开启MySQL5.7的GTID功能

Master和Backup分别执行如下命令：

#mysql> stop slave;

Query OK, 0 rows affected (0.00 sec)

#mysql> change master to MASTER_AUTO_POSITION=1;

Query OK, 0 rows affected (0.01 sec)

#mysql> start slave;

Query OK, 0 rows affected (0.00 sec)

5．MySql更改密码并添加远程登录功能：

查看随机密码：

#log-error=/var/log/mysqld.log。cat /var/log/xorg.0.log | grep ee。cat /var/log/xorg.0.log | grep nvidia。

更改密码：

mysqladmin -u root -p password “abc123”

授权远程登录：

mysql-> grant all privileges on *.* to root@"%" identified by "pwd" with grant option。mysql>grant all privileges on *.* to 'root'@'%' identified by 'youpassword' with grant option。mysql>grant all privileges on *.* to'root'@'%'identified by 'youpassword' with grant option。

mysql>FLUSH PRIVILEGES;

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