標籤:mysql
在新裝的兩個資料庫間做主從複製當然這也是最簡單的主從複製:
在主上操作:
設定server_id = 11 (為唯一的值)
然後在主上為複製帳號賦予許可權:
mysql> grant replication slave, replication client on *.* to [email protected]"192.168.1.%" identified by ‘123123‘;Query OK, 0 rows affected (0.00 sec)
在從上操作:
只需設定server_id = 12 (為唯一)登入資料庫mysql> change master to master_host="192.168.1.120", -> master_user="repl", -> master_password="123123", -> master_log_file="mysql-bin.000001", -> master_log_pos=106;Query OK, 0 rows affected (0.03 sec)mysql> slave start;Query OK, 0 rows affected (0.01 sec)mysql> show slave status\G;*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.120 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 276 Relay_Log_File: slave-relay-bin.000002 Relay_Log_Pos: 421 Relay_Master_Log_File: mysql-bin.000001 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: 276 Relay_Log_Space: 576 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: 0Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: 1 row in set (0.00 sec)ERROR: No query specified
以上為最簡單的主從複製:
測試在主上建立資料庫:
mysql> create database example;Query OK, 1 row affected (0.00 sec)
在從上檢測:
mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || example || mysql || test |+--------------------+4 rows in set (0.00 sec)mysql>
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mysql主從複製-----1