可以将MySQL 32位数据库导入/复制到64位MySQL吗？

Question

I have a database on a 32bit Linux server with MySQL that I would like to import/copy/migrate to a 64bit Linux server.

I have considered

service mysqld stop
tar czf /root/db.tar.gz /var/lib/mysql

and copy this to the new server.

Or perhaps

mysqldump -uroot -p --all-databases > /root/db.sql

Question

Is that possible, and if so, what the recommended way?

Answer 1

Using mysqldump and re-importing the resultant file will work for certain and is recommended, unless your database is very large and the dump/import process' slower speed is an issue.

Unless the server environment is identical in most ways, you may have some cleaning up to do and permissions corrections if you were to copy the data files over directly. There is documentation on performing the transfer with raw data files, but mysqldump is the usual preferred method.

Answer 2

If you have a large database, I would suggest using XtraBackup . It will likely be much faster than using mysqldump followed by an import.