WebNov 21, 2014 · FLUSH TABLES WITH READ LOCK is the same statement I've been trying. So the problem is the OTHER statement, this one? SET GLOBAL read_only = ON; – Dan. Nov 21, 2014 at 15:22. Add a comment Your Answer Thanks for contributing an answer to Database Administrators Stack Exchange! Please be sure to answer ... Web概述. 全局锁通常由 flush table with read lock 这类语句添加的。. 各种备份工具在保证数据一致性的情况下,或者主备切换工具在切换时常加上这类语句。. 另外帐号有 …
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WebNov 18, 2024 · 禁止写操作:flush tables with read lock;解锁:unlock tables;进入容器:docker exec -it id bash备份所有数据: mysqldump -uroot -p123+Jvmp=456 --all-databases > safeweb.sql退出容器,复制safeweb.sql到主机上:docker cp id:safeweb.sql .在slave数据库中还原数据master数据库开启二进制日志:vi volumes WebThe purpose of FLUSH TABLES WITH READ LOCK . FLUSH TABLES WITH READ LOCK is useful if you want to take a backup of some tables. When FLUSH TABLES WITH READ LOCK returns, all write access to tables are blocked and all tables are marked as 'properly closed' on disk. The tables can still be used for read operations. The purpose … church teleprompter
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WebMar 16, 2024 · 1、read_only. SET GLOBAL read_only=ON 1、SUPER,ALL PRIVILEGES,root,具备修改数据库的能力 2、普通用户则没有,报只读错误. 2 … WebJun 7, 2024 · 2、此逻辑卷所在卷组必须有足够的空间使用快照卷;. 3、数据文件和事务日志要在同一个逻辑卷上;. 步骤:. 1、打开会话,施加读锁,锁定所有表;. mysql> FLUSH TABLES WITH READ LOCK; #刷新表并对表施加读锁. mysql> FLUSH LOGS; #滚动日志. 2、通过另一个终端,保存二进制 ... Web相对的,设定"read_only=1"只读模式开启的解锁命令为设定"read_only=0";设定全局锁"flush tables with read lock;",对应的解锁模式命令为:"unlock tables;".当然设定了read_only=1后,所有的select查询操作都是可以正常进行的。 church teleconference