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mysql中change master to
- WBOYOriginal
- 2016-06-07 16:41:532481browse
在从机器上做好了相应的恢复后，我们要指定从机器所对应的master信息，从而让slave开始工作 手册中解释如下： CHANGE MASTER TO changes the parameters that the slave server uses for?connecting to and communicating with the master server. It also u
在从机器上做好了相应的恢复后，我们要指定从机器所对应的master信息，从而让slave开始工作
手册中解释如下：
CHANGE MASTER TO changes the parameters that the slave server uses for?connecting to and communicating with the master server. It also updates?the contents of the master.info and relay-log.info files.
这个命令连接master服务器，同时更新master.info和relay-log.info
*Note*: Replication cannot use Unix socket files. You must be able to?connect to the master MySQL server using TCP/IP.
这里说明复制不能使用socket来连接，必须是使用tcp/ip
MASTER_LOG_FILE and MASTER_LOG_POS are the coordinates at which the?slave I/O thread should begin reading from the master the next time the?thread starts. If you specify either of them, you cannot specify?RELAY_LOG_FILE or RELAY_LOG_POS.
这两个参数用来指定slave从那个坐标开始读取数据，如果这两个参数有设定的话就不能在指定RELAY_LOG_FILE或RELAY_LOG_POS
案例如下：
CHANGE MASTER TO
MASTER_HOST=’master2.liufofu.com’,
MASTER_USER=’replication’,
MASTER_PASSWORD=’liufofu’,
MASTER_PORT=3306,
MASTER_LOG_FILE=’master2-bin.001′,
MASTER_LOG_POS=4,
MASTER_CONNECT_RETRY=10;
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