CHANGE MASTER TO MASTER_HOST='10.10.30.34', MASTER_PORT=3306, MASTER_USER='
CHANGE MASTER TO
MASTER_HOST='10.10.30.34',
MASTER_PORT=3306,
MASTER_USER='slave',
MASTER_PASSWord='slave',
MASTER_LOG_FILE='Mysql-bin.000148',
MASTER_LOG_POS=154;
从数据库变为主库
stop slave;
reset slave;
reset master;
从库变为刚才的主库(由从库变为主库的数据库)
vim /etc/my.cnf
log-bin=mysql-bin #并重启数据库,主库开启binlog日志
主库操作:show master status
主库操作:scp -r /var/lib/mysql/* 10.10.50.34:/var/lib/mysql/
从库:chown -R mysql.mysql /var/lib/mysql/
从库:systemctl restart mysqld
CHANGE MASTER TO
MASTER_HOST='172.16.1.51',
MASTER_PORT=3306,
MASTER_USER='rep',
MASTER_PASSWORD='123456',
MASTER_LOG_FILE='mysql-bin.000001',
MASTER_LOG_POS=335;
进入数据:start slave;
中间报错:
1.io进程一直处于connnecting中
slave 用户的密码写错
2.show slave status;报错
Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file'
解决办法:
主库:flush logs;
从库:
stop slave;
CHANGE MASTER TO MASTER_LOG_FILE='mysqld-bin.000011',MASTER_LOG_POS=106;
start slave;
--结束END--
本文标题: mysql5.7 迁移以及从库提升为主库
本文链接: https://www.lsjlt.com/news/44197.html(转载时请注明来源链接)
有问题或投稿请发送至: 邮箱/279061341@qq.com QQ/279061341
下载Word文档到电脑,方便收藏和打印~
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
2024-05-03
回答
回答
回答
回答
回答
回答
回答
回答
回答
回答
0