innobackupex 备份表，备份库

可参考
https://www.percona.com/doc/percona-xtrabackup/2.2/innobackupex/partial_backups_innobackupex.html

备份数据库表

$ echo "mydatabase.mytable" > /tmp/tables.txt
$ innobackupex --tables-file=/tmp/tables.txt /path/to/backup

 备份库
innobackupex --databases="mydatabase.mytable mysql" /path/to/backup
恢复
$ innobackupex --apply-log --export /path/to/partial/backup