mysql 主從 複製
mysql 主從複製步驟 1)下載MySQL(Ubuntu) sudo apt-get install mysql-server mysql-client 2)更改mysql的配置文件 vi /etc/mysql/my.cnf 修改內容如下 #綁定本機ip地址,作為master bind-address = 192.168.0.75 #作為master server-id = 1 #去掉註釋 log_bin = /var/log/mysql/mysql-bin.log #需要複製的資料庫 binlog_do_db = zm_gaiay_net_cn 保存更改 2)重啟mysql sudo service mysql restart 3)通過mysql client 進入命令行 mysql -u root -p 提示輸入root密碼 4)把複製許可權給slave_user,並指定密碼 grant replication slave on *.* to 'slave_user'@'%' identified by '123456'; 5)連接binlog_do_db 對應的資料庫 (zm_gaiay_net_cn) use zm_gaiay_net_cn; 6)鎖住表以免發生新的變化 flush tables with read lock; 7)查看master status show master status; +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000001 | 107 | zm_gaiy_net_cn | | +------------------+----------+--------------+------------------+ 從庫中會使用到 file 和 position 從庫中安裝 1)安裝mysql 2)更改mysql配置文件my.cnf server-id = 2 #添加,註意這裡是中劃線 replay-log = /var/log/mysql/mysql-replay-bin.log log_bin = /var/log/mysql/mysql-bin.log binlog_do_db = zm_gaiay_net_cn 3)重啟服務 sudo service mysql restart 4)通過mysql-client 進入命令行界面 mysq -u root -p 配置主庫 CHANGE MASTER TO MASTER_HOST='192.168.0.75',MASTER_USER='slave_user', MASTER_PASSWORD='123456', MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS= 107; 解釋 master_host : 主庫的ip master_user :組庫中用來複制的用戶 master_password:主庫中用來複制的用戶密碼 master_log_file:主庫(zm_gaiay_net_cn)對應的bin文件 master_log_pos:從哪裡開始複製 5)開啟複製 start slave 6)查看狀態 SHOW SLAVE STATUS