《mysql主从切换》的评论 https://www.xifenfei.com/2011/09/mysql%e4%b8%bb%e4%bb%8e%e5%88%87%e6%8d%a2.html 提供7*24专业数据库(Oracle,SQL Server,MySQL,PostgreSQL等)恢复和技术支持@Tel:17813235971 Thu, 11 Dec 2025 02:46:14 +0000 hourly 1 作者：惜 分飞 https://www.xifenfei.com/2011/09/mysql%e4%b8%bb%e4%bb%8e%e5%88%87%e6%8d%a2.html/comment-page-1#comment-161 Fri, 16 Sep 2011 17:09:34 +0000 https://www.xifenfei.com/?p=1559#comment-161 1、重启是的修改的配置文件生效
2、不重启，有时候，slave进程不会正常工作

]]> 作者：likydva https://www.xifenfei.com/2011/09/mysql%e4%b8%bb%e4%bb%8e%e5%88%87%e6%8d%a2.html/comment-page-1#comment-159 Fri, 16 Sep 2011 04:00:48 +0000 https://www.xifenfei.com/?p=1559#comment-159 为什么最后还要重启呢？　[root@localhost mysql]# service mysql restart

]]> 作者：惜 分飞 https://www.xifenfei.com/2011/09/mysql%e4%b8%bb%e4%bb%8e%e5%88%87%e6%8d%a2.html/comment-page-1#comment-153 Tue, 13 Sep 2011 14:32:46 +0000 https://www.xifenfei.com/?p=1559#comment-153 1、修改主从参数
主库：
relay-log=/opt/mysql/mysqldata/mysqllog/replicate
relay-log-index=/opt/mysql/mysqldata/mysqllog/replicate.index
read-only=1
skip-slave-start=1
innodb_flush_log_at_trx_commit = 1
sync-binlog=1
备库：
#read-only=1

2、查看主备库状态
show slave status \G
show master status \G

3、操作备库
STOP SLAVE IO_THREAD;
SHOW PROCESSLIST;
看到Has read all relay log
show slave status \G
STOP SLAVE;
RESET MASTER;
RESET SLAVE;
show master status \G

4、操作主库
show master status \G
RESET MASTER;
RESET SLAVE;
CHANGE MASTER TO
MASTER_HOST=’192.168.1.4′,
MASTER_USER=’repl’,
MASTER_PASSWORD=’xifenfei’,
MASTER_LOG_FILE=’mysq_lbin.000001′,
MASTER_LOG_POS=107;

5、重启新主从库，开启slave进程，检查是否正常
主库
SHOW PROCESSLIST;
show master status \G
从库
start slave;
SHOW PROCESSLIST;
show slave status \G

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