Xtrabackup恢复时报错'Error: datadir must be specified'
通过xtrabackup进行恢复的时候报错
/opt/percona-xtrabackup-2.4.4-Linux-x86_64/bin/innobackupex --defaults-file=/data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/my.conf /data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/ --copy-back
xtrabackup Error: datadir must be specified
报错原因：
指定的参数文件和备份文件在相同的目录下面
解决方法：
将参数文件存放在备份文件之外的目录下面
/opt/percona-xtrabackup-2.4.4-Linux-x86_64/bin/innobackupex --defaults-file=/etc/my_01.cnf --apply-log /data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/
/opt/percona-xtrabackup-2.4.4-Linux-x86_64/bin/innobackupex --defaults-file=/data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/my.conf /data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/ --copy-back
xtrabackup Error: datadir must be specified
报错原因：
指定的参数文件和备份文件在相同的目录下面
解决方法：
将参数文件存放在备份文件之外的目录下面
/opt/percona-xtrabackup-2.4.4-Linux-x86_64/bin/innobackupex --defaults-file=/etc/my_01.cnf --apply-log /data/opt/mysql02/db_bak/bak/2018-01-03_03-00-05/
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/26506993/viewspace-2149834/ ，如需转载，请注明出处，否则将追究法律责任。
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