【MySQL】主从复制

一、

主：hftest0001

从：hftest0002

二、 

主：mysql -uroot -p

[root@hftest0001 mysql]# vi /etc/my.cnf
[mysqld]
...
server-id=201
log-bin=master-bin
log-bin-index=master-bin.index
...
[mysqld_safe]
...
...


[root@hftest0001 mysql]# mysql -uroot -p


mysql> create user repl;
mysql> grant replication slave on *.* to 'repl'@'${slave_ip}' identified by '${repl_passwd}';
mysql> exit;

[root@hftest0001 mysql]# service mysqld restart

[root@hftest0001 mysql]# mysql -uroot -p

mysql> show master status;
mysql> show master status;
+-------------------+----------+--------------+------------------+-------------------+
| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+-------------------+----------+--------------+------------------+-------------------+
| master-bin.000001 |     1459 |              |                  |                   |
+-------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

从：mysql -uroot -p

[root@hftest0002 ~]# vi /etc/my.cnf
...
server-id=155
relay-log-index=slave-relay-bin.index
relay-log=slave-relay-bin
...

[root@hftest0002 mysql]# service mysqld restart

[root@hftest0002 mysql]# mysql -uroot -p

mysql> change master to master_host='${repl_ip}', //Master 服务器Ip 
     > master_port=3306,
     > master_user='repl',
     > master_password='${repl_passwd}', 
     > master_log_file='master-bin.000001',//Master服务器产生的日志
     > master_log_pos=1459;
     
mysql> start slave;
mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.224.246.201
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: master-bin.000001
          Read_Master_Log_Pos: 1459
               Relay_Log_File: slave-relay-bin.000005
                Relay_Log_Pos: 480
        Relay_Master_Log_File: master-bin.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
            ...
            ...
            ...

三、指定DB复制

从：mysql -uroot -p

[root@hftest0002 ~]# vi /etc/my.cnf
[mysqld]
...
...
replicate-do-db=repl3            ==>指定复制db
...

[root@hftest0002 mysql]# service mysqld restart

[root@hftest0002 mysql]# mysql -uroot -p

mysql> change master to master_host='${repl_ip}', //Master 服务器Ip 
     > master_port=3306,
     > master_user='repl',
     > master_password='${repl_passwd}', 
     > master_log_file='master-bin.000001',//Master服务器产生的日志
     > master_log_pos=1459;
     
mysql> start slave;
mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.224.246.201
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: master-bin.000001
          Read_Master_Log_Pos: 1459
               Relay_Log_File: slave-relay-bin.000005
                Relay_Log_Pos: 480
        Relay_Master_Log_File: master-bin.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: repl3                => 指定的DB