mysql主备配置方法

主备复制配置

1,主备创建账号

GRANT REPLICATION SLAVE,REPLICATION CLIENT ON *.*

TO [email protected]’172.16.0.%’ IDENTIFIED BY ‘rep’;

2,配置主库

My.cnf

log_bin=mysql-bin

server_id=10

innodb_flush_log_at_trx_commit=1

sync_binlog=1

3,配置从库

log_bin=mysql-bin

server_id=2

relay_log = /var/lib/mysql/mysql-relay-bin

log_slave_updates = 1

read_only =1

sync_master_info=1

sync_relay_log=1

sync_relay_log_info=1

skip-host-cache

skip-name-resolve

slave_net_timeout=30 //主备未发现连接断开超时时间

slave_skip_errors=1062

mysql中执行

CHANGE MASTER TO MASTER_HOST=’172.16.0.129’,

MASTER_USER=’rep’,

MASTER_PASSWORD=’rep’,

MASTER_LOG_FILE=’mysql-bin.000001’,

MASTER_LOG_POS=0;

Start slave

Show slave status\G;

4,备库提升方法

STOP SLAVE

CHANGE MASTER TO MASTER_HOST=’’,

RESET SLAVE