实验环境
Master：192.168.200.112
Slave：192.168.200.111
两台机器全部安装的MySQL5.7
Master配置
修改主配置文件
[root@localhost ~]# vim /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
log-bin=mysql-bin //开启二进制日志
enforce-gtid-consistency=true //强制gtid的一致性
gtid_mode=ON //打开gtid功能
server-id=1
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
log-error=/usr/local/mysql/data/mysql.log
pid-file=/usr/local/mysql/data/mysql.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
[root@localhost ~]# /etc/init.d/mysql restart
进入数据库设置授权
[root@localhost ~]# mysql -uroot -p123456
mysql> grant replication slave on *.* to 'myslave'@'192.168.200.%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+------------------------------------------+
| mysql-bin.000002 | 848 | | | 0bb6bae0-f02d-11e9-91d1-000c29d76afe:1-3 |
+------------------+----------+--------------+------------------+------------------------------------------+
1 row in set (0.00 sec)
12345678910
Slave配置
配置文件修改
[root@localhost ~]# vim /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
log-bin=mysql-bin
enforce-gtid-consistency=true
gtid_mode=ON
server-id=2 //不要与主库相同
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
log-error=/usr/local/mysql/data/error.log
pid-file=/usr/local/mysql/data/mysql.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
[root@localhost ~]# /etc/init.d/mysql restart
连接主库
[root@localhost ~]# mysql -uroot -p123456
mysql> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> change master to master_host='192.168.200.112',master_user='myslave',master_password='123456',master_log_file='mysql-bin.000002',MASTER_AUTO_POSITION=0;
Query OK, 0 rows affected, 3 warnings (0.41 sec)
mysql> start slave;
Query OK, 0 rows affected (0.13 sec)
mysql> show slave statusG
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.200.112
Master_User: myslave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 848
Relay_Log_File: node1-relay-bin.000002
Relay_Log_Pos: 1061
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes //已开启
Slave_SQL_Running: Yes //已开启
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: 848
Relay_Log_Space: 1268
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: 0bb6bae0-f02d-11e9-91d1-000c29d76afe
Master_Info_File: /usr/local/mysql/data/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: 0bb6bae0-f02d-11e9-91d1-000c29d76afe:1-3
Executed_Gtid_Set: 0bb6bae0-f02d-11e9-91d1-000c29d76afe:1-3,
678e29a7-f02e-11e9-98af-000c2928f574:1
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
测试
在主库中创建一个库
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
mysql> create database aaaaa;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| aaaaa |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
从库查看
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| aaaaa |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)