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MySQL增添数据文件

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Release： 2016-06-07 16:23:56
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MySQL添加数据文件 阿里聚石塔服务器，两块硬盘，一块系统盘只有49G，一块数据盘188G，安装MySQL时使用默认配置，因此数据文件放到了系统盘，今天的任务就是把新添加一个数据文件，新的数据文件写入数据盘中。 找到MySQL配置文件/etc/my.cnf innodb_data_home

MySQL添加数据文件

阿里聚石塔服务器，两块硬盘，一块系统盘只有49G，一块数据盘188G，安装MySQL时使用默认配置，因此数据文件放到了系统盘，今天的任务就是把新添加一个数据文件，新的数据文件写入数据盘中。

找到MySQL配置文件/etc/my.cnf

innodb_data_home_dir=
innodb_data_file_path=/var/lib/mysql/ibdata1:76M;/data/mysql-data/ibdata2:12M:autoextend
Copy after login

?开始只加了innodb_data_file_path，而没有加innodb_data_home_dir，重启mysql服务器一直报错，查看mysql错误文件

1.虽然此处innodb_data_home_dir的配置和默认配置是一样的，但是不能省略，否则报错

2./var/lib/mysql/ibdata1:76M该出大小要和已存在文件的大小一致，否则也会报错。

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