昨天在使用RMAN备份恢复测试数据库的时候，不小心在rename logfile的时候把名字搞错了路径，导致在resetlogs打开数据库的时候遇到以下错误。

SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-00344: unable to re-create online log
'/data2/u04/app/oracle/oradata/ivldb/redo04.log'
ORA-27040: file create error, unable to create file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 1

查询发现，不止一个redo文件的路径搞错了。

SQL> select member from v$logfile;

MEMBER
----------------------------------------------
/data2/u01/app/oracle/oradata/ivldb/redo03.log
/data2/u01/app/oracle/oradata/ivldb/redo02.log
/data2/u01/app/oracle/oradata/ivldb/redo01.log
/data2/u04/app/oracle/oradata/ivldb/redo04.log
/data2/u05/app/oracle/oradata/ivldb/redo05.log
/data2/u06/app/oracle/oradata/ivldb/redo05.log

重新修改redo文件的路径，再次resetlogs打开数据库遇到ORA-00392错误。

SQL> alter database rename file '/data2/u04/app/oracle/oradata/ivldb/redo04.log' to '/data2/u01/app/oracle/oradata/ivldb/redo04.log';

Database altered.

SQL> alter database rename file '/data2/u05/app/oracle/oradata/ivldb/redo05.log' to '/data2/u01/app/oracle/oradata/ivldb/redo05.log';

Database altered.

SQL> alter database rename file '/data2/u06/app/oracle/oradata/ivldb/redo05.log' to '/data2/u01/app/oracle/oradata/ivldb/redo06.log';

Database altered.

SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-00392: log 4 of thread 1 is being cleared, operation not allowed
ORA-00312: online log 4 thread 1:
'/data2/u01/app/oracle/oradata/ivldb/redo04.log'

这个错误需要手动重置redo文件才可以解决，无法直接resetlogs的方式重置。

SQL> alter database clear logfile group 4;

Database altered.

SQL> alter database open resetlogs;

Database altered.

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