本文主要參考:
http://369369.blog.51cto.com/319630/790921/ 並對文中錯誤進行更正
其它參考內容:
http://blog.csdn.net/hguisu/article/details/7325124
http://pengranxiang.iteye.com/blog/1141118
推薦文檔:
http://www.cnblogs.com/kristain/articles/4142970.html
服務器ip
DB1 10.10.6.211
DB2 10.10.6.212
1、主、從服務器安裝mysql
[root@DB1 ~]# yum install mysql mysql-server
2、修改主服務器配置:
[root@DB1 ~]# more /etc/my.cnf 增加如下內容 [mysqld] log-bin=mysql-bin \\[必須]啓用二進制日誌 server-id=211
3、修改從服務器配置:
[root@DB2 ~]# more /etc/my.cnf 增加如下內容 [mysqld] log-bin=mysql-bin \\[必須]啓用二進制日誌 server-id=212 \\必須]服務器唯一ID,默認是1,一般取IP最後一段
4、重啓兩臺服務器的mysql
[root@DB1 ~]# service mysqld restart
5、在主服務器上建立帳戶並授權給從服務器:
[root@DB1 ~]# mysql mysql> GRANT REPLICATION SLAVE ON *.* to 'mysync'@'10.10.6.212' identified by '123456'; Query OK, 0 rows affected (0.00 sec) mysql> 6、登錄主服務器的mysql,查詢master的狀態 mysql> show master status; +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000003 | 260 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) \\注:執行完此步驟後不要再操作主服務器MYSQL,防止主服務器狀態值變化 mysql>
7、配置從服務器Slave:
注意下面的語句,網上有很多資料都有錯誤
mysql> change master to Master_host='10.10.6.211',master_user='mysync',master_password='123456',master_log_file='mysql-bin.000003',master_log_pos=260; Query OK, 0 rows affected (0.01 sec) \\replicate-ignore-db=mysql //不需要備份的數據庫; 這兩個語句可以根據實際情況 \\replicate-do-db=data //需要備份的數據庫 mysql> start slave; \\啓動從服務器複製功能 Query OK, 0 rows affected (0.00 sec) mysql>
8、檢查從服務器複製功能狀態:
mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.10.6.211 \\主服務器地址 Master_User: mysync \\授權帳戶名,儘量避免使用root Master_Port: 3306 \\數據庫端口,部分版本沒有此行 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 260 \\同步讀取二進制日誌的位置,大於等於Exec_Master_Log_Pos Relay_Log_File: mysqld-relay-bin.000002 Relay_Log_Pos: 251 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: Yes \\此狀態必須YES Slave_SQL_Running: Yes \\此狀態必須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: 260 Relay_Log_Space: 407 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) mysql>
注:Slave_IO及Slave_SQL進程必須正常運行,即YES狀態,否則都是錯誤的狀態(如:其中一個NO均屬錯誤)。
以上操作過程,主從服務器配置完成。
9、主從服務器測試:
主服務器Mysql,建立數據庫,並在這個庫中建表插入一條數據:
mysql> create database jedy_db; Query OK, 1 row affected (0.00 sec) mysql> use jedy_db; Database changed mysql> create table jedy_test(id int(3),name char(10)); Query OK, 0 rows affected (0.00 sec) mysql> insert into jedy_test values(001,'tian'); Query OK, 1 row affected (0.00 sec) mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | jedy_db | | mysql | | test | +--------------------+ 4 rows in set (0.00 sec) mysql>
從服務器Mysql查詢:
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | jedy_db | | mysql | | test | +--------------------+ 4 rows in set (0.00 sec) mysql> mysql> use jedy_db; Database changed mysql> show tables; +-------------------+ | Tables_in_jedy_db | +-------------------+ | jedy_test | \\主服務器上新建的庫傳過來了 +-------------------+ 1 row in set (0.00 sec) mysql> select * form jedy_test; \\可以看到在主服務器上新增的具體數據 ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'form jedy_test' at line 1 mysql> select * from jedy_test; +------+------+ | id | name | +------+------+ | 1 | tian | +------+------+ 1 row in set (0.00 sec) mysql>