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mysql主从复制-----1
在新装的两个数据库间做主从复制当然这也是最简单的主从复制:
在主上操作:
设置server_id = 11 (为唯一的值)
然后在主上为复制账号赋予权限:
mysql> grant replication slave, replication client on *.* to repl@"192.168.1.%" identified by ‘123123‘; Query OK, 0 rows affected (0.00 sec)
在从上操作:
只需设置server_id = 12 (为唯一) 登录数据库 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: 0 Master_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
以上为最简单的主从复制:
测试在主上创建数据库:
mysql> create database example; Query OK, 1 row affected (0.00 sec)
在从上检测:
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | example | | mysql | | test | +--------------------+ 4 rows in set (0.00 sec) mysql>
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mysql主从复制-----1
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