master主服務器：
ip:192.168.5.112
sudo vi /etc/mysql/my.cnf
[mysqld] server-id=1 log-bin=mysql-bin #一定要把下面的一句話註銷，否則無法遠程登錄服務器 #bind-address = 127.0.0.1 #這裏可以設置哪些庫需要備份，哪些不需要，我在這裏沒有設置 #binlog_do_db = include_database_name #binlog_ignore_db = include_database_name
修改完成之後，運行mysql -uroot -proot
新建查詢用戶：
mysql> CREATE USER 'repl'@'#' IDENTIFIED BY '12345678'; mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'#';
之後，重啓服務器，重啓之後，再次登錄mysql
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 | 411 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
出現這個，表示master已經設置完成了，接下來設置slave
slave從服務器：
ip：192.168.5.113
sudo vi /etc/mysql/my.cnf
[mysqld] server-id=2
之後登錄mysql
mysql> CHANGE MASTER TO -> MASTER_HOST='192.168.5.112', -> MASTER_USER='repl', -> MASTER_PASSWORD='12345678', -> MASTER_LOG_FILE='mysql-bin.000001', -> MASTER_LOG_POS=411;
然後重啓服務器
之後，登錄mysql
mysql > show slave status;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.5.112
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 1196
Relay_Log_File: mysqld-relay-bin.000004
Relay_Log_Pos: 1359
Relay_Master_Log_File: mysql-bin.000002
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: 1196
Relay_Log_Space: 1696
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: f4c24d5d-5622-11e7-89df-000c295755b8
Master_Info_File: /var/lib/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
ERROR:
No query specified
紅色框部分顯示yes時，表示主從已經配置成功。之後在主服務器上的mysql新建數據，在從服務器的mysql中查詢，看是否成功。
備註：
若主服務器已經存在服務器，則將對應的數據庫導出爲sql文件
之後，在slave上新建主服務器的數據庫，然後將主服務器上的sql文件導入到對應的庫中，同步之前數據。
之後，再開始主從複製過程。