MySQL主从复制配置

配置主数据库：my.cnf：server-id       = 1log-bin 重启数据库登录并查看：[root@Mysql-server ~]# mysql -uroot -p199429mysql> show variables like 'log_bin';  +---------------+-------+| Variable_name | Value |+---------------+-------+| log_bin       | ON    |+---------------+-------+mysql> show variables like 'server_id';+---------------+-------+| Variable_name | Value |+---------------+-------+| server_id     | 1     |+---------------+-------+建立主从复制账号：mysql> grant replication slave on *.* to 'rep'@'192.1.1.%' identified by '199429';mysql> select user,host from mysql.user;+-----------+-----------+| user      | host      |+-----------+-----------+| root      | 127.0.0.1 || bbs       | 192.1.1.% || keer      | 192.1.1.% || rep       | 192.1.1.% || wordpress | 192.1.1.% || root      | localhost |+-----------+-----------+实现对主数据库锁表只读：mysql> flush table with read lock;Query OK, 0 rows affected (0.00 sec)mysql> show variables like '%timeout%';+----------------------------+----------+| Variable_name              | Value    |+----------------------------+----------+| connect_timeout            | 10       || delayed_insert_timeout     | 300      || innodb_lock_wait_timeout   | 50       || innodb_rollback_on_timeout | OFF      || interactive_timeout        | 28800    |#####| lock_wait_timeout          | 31536000 || net_read_timeout           | 30       || net_write_timeout          | 60       || slave_net_timeout          | 3600     || wait_timeout               | 28800    |#####+----------------------------+----------+10 rows in set (0.00 sec)查看主库状态：mysql> show master status;+-------------------------+----------+--------------+------------------+| File                    | Position | Binlog_Do_DB | Binlog_Ignore_DB |+-------------------------+----------+--------------+------------------+| Mysql-server-bin.000001 |      962 |              |                  |+-------------------------+----------+--------------+------------------+1 row in set (0.00 sec)新开窗口备份导出数据：[root@Mysql-server ~]# mkdir -p /server/backup/ [root@Mysql-server ~]# mysqldump -uroot -p199429 --events -A -B |gzip >/server/backup/mysql_bak.$(date +%F).sql.gz在此查看主库状态是否变化：mysql> show master status;+-------------------------+----------+--------------+------------------+| File                    | Position | Binlog_Do_DB | Binlog_Ignore_DB |+-------------------------+----------+--------------+------------------+| Mysql-server-bin.000001 |      962 |              |                  |+-------------------------+----------+--------------+------------------+1 row in set (0.00 sec)从数据库：配置文件my.cnfserver-id       = 2  ####保证唯一性重启从数据库登录从数据库：[root@Mysql-server_02 backup]# mysql -uroot -p199429 -S /data/3306/mysql.sock mysql> show variables like 'log_bin';+---------------+-------+| Variable_name | Value |+---------------+-------+| log_bin       | OFF   |+---------------+-------+1 row in set (0.00 sec)mysql> show variables like 'server_id';+---------------+-------+| Variable_name | Value |+---------------+-------+| server_id     | 3     |+---------------+-------+恢复MySQLdump的数据[root@Mysql-server_02 backup]# cd /server/backup/[root@Mysql-server_02 backup]# gzip -d mysql_bak.2017-03-23.sql.gz[root@Mysql-server_02 backup]# mysql -uroot -p'199429' -S /data/3306/mysql.sock  CHANGE MASTER TO    -> MASTER_HOST='192.1.1.11',    -> MASTER_PORT=3306,    -> MASTER_USER='rep',    -> MASTER_PASSWORD='199429',    -> MASTER_LOG_FILE='Mysql-server-bin.000001',    -> MASTER_LOG_POS=962;费登录状态执行方法：[root@Mysql-server_02 backup]# mysql -uroot -p'199429' -S /data/3306/mysql.sock<< EOFCHANGE MASTER TO    MASTER_HOST='192.1.1.11',    MASTER_PORT=3306,    MASTER_USER='rep',    MASTER_PASSWORD='199429',    MASTER_LOG_FILE='Mysql-server-bin.000001',    MASTER_LOG_POS=962;EOF实际修改从库中的master.info文件[root@Mysql-server_02 backup]# cat /data/3306/data/master.info 18mysql-server-bin.000001962192.1.1.11rep1994293306600，。。。。。。。。启动主从复制：mysql> start slave;                                               Query OK, 0 rows affected (0.00 sec)mysql> show slave status\G;*************************** 1. row ***************************               Slave_IO_State: Waiting for master to send event                  Master_Host: 192.1.1.11                  Master_User: rep                  Master_Port: 3306                Connect_Retry: 60              Master_Log_File: Mysql-server-bin.000001          Read_Master_Log_Pos: 962               Relay_Log_File: relay-bin.000002                Relay_Log_Pos: 260        Relay_Master_Log_File: Mysql-server-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: 962              Relay_Log_Space: 410              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:   Replicate_Ignore_Server_Ids:              Master_Server_Id: 11 row in set (0.00 sec)测试主从复制功能（省略）