原始的是Windows 2003下的32位的MySQL数据库, 新的服务器是Sun的64位的小型机,64位的MySQL数据库。
数据库文件很大,约有70G,如果普通的迁移,需要在原始数据库导出数据,然后在新数据库导入数据
经仔细考虑,是否MySQL的数据库文件存储格式在不同的操作系统相同呢?
测试过程如下:
在64位SUN机器上安装64位版的MySQL
停止MySQL服务
复制Windows上的32位MySQL的数据文件(全部,除了system和日志等)到64位机器上,
修改相应的文件和目录权限,
文件为 chmod 660
目录为 chmod 700
然后重启MySQL服务,运行正常。
总结:
别以为这个看上去很简单,许多人会错误的认为,不同的操作系统,其存储并不是通用的,而这个例子证明,相同数据库数据的存储结构是没有区别的,完全可以直接拿来使用。
附上中间遇到的一个小异常,那就是数据库的数据目录,必须有可执行的权限,也就是7的权限,6的不可以。
我的测试过程

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