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/