[root@localhost ~]# mysql -uroot -pwsyht123 -e "show variables like ‘log_bin’;" #查看有没有开启log-bin +---------------+-------+ | Variable_name | Value | +---------------+-------+ | log_bin | ON | +---------------+-------+ [root@master ~]# service mysqld restart
[root@master ~]# mysql -uroot -pwsyht123 mysql> grant replication slave on *.* to 'wsyht'@'192.168.2.%' identified by '123456'; mysql> flush privileges; #刷新权限 mysql> flush table with read lock; #读锁,不让别的用户往里写,当前窗口还不能断 mysql> show master status; #查看master状态 +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000028 | 107 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) mysql> show databases; #查看Master当前数据库有什么库 +--------------------+ | Database | +--------------------+ | information_schema | | d1 | | mysql | | performance_schema | +--------------------+ 5 rows in set (0.00 sec)
[root@slave ~]# mysql -uroot -pwsyht123 -e "show databases;" #查看当前slave有什么库 +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | +--------------------+ 3 rows in set (0.00 sec) [root@slave ~]# mysql -uroot -pwsyht123 < /opt/all.$(date +%F).sql #将主库的备份数据导进从库 [root@slave ~]# mysql -uroot -pwsyht123 -e "show databases;" #导进库后再次查看 +--------------------+ | Database | +--------------------+ | information_schema | | d1 | | mysql | | performance_schema | +--------------------+
[root@slave ~]# mysql -uroot -pwsyht123 mysql> change master to master_host='192.168.2.1', #连接的主机 master_user='wsyht', #连接同步Master的账户 master_password='123456', #连接同步Master的密码 master_log_file='mysql-bin.000028', #Master的现记录的日志文件 master_log_pos=107; #Master记录的日志点 mysql> start slave; mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.2.1 Master_User: wsyht Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000028 #Master正在使用的日志文件 Read_Master_Log_Pos: 107 #Master正中使用的日志点 Relay_Log_File: mysql-relay-bin.000002 #Slave正使用的中继日志文件 Relay_Log_Pos: 253 #Slave中继日志文件的日志点 Relay_Master_Log_File: mysql-bin.000028 Slave_IO_Running: Yes #IO线程呈YES为正常 Slave_SQL_Running: Yes #SQL线程呈YES为正 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: 107 Relay_Log_Space: 409 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 (0.00 sec)
No query specified mysql> show databases; #查看Slave当前数据库有什么库 +--------------------+ | Database | +--------------------+ | information_schema | | d1 | | mysql | | performance_schema | +--------------------+ 5 rows in set (0.00 sec)
mysql> create database test; #创建test数据库测试同上海 Query OK, 1 row affected (0.00 sec) mysql> show databases; #查看Master当前数据库有什么库 +--------------------+ | Database | +--------------------+ | information_schema | | d1 | | mysql | | performance_schema | | test | +--------------------+ 6 rows in set (0.00 sec)
mysql> show databases; #查看Slave当前数据库有什么库 +--------------------+ | Database | +--------------------+ | information_schema | | d1 | | mysql | | performance_schema | | test | +--------------------+ 6 rows in set (0.00 sec)