搭建DG 打开备库提示ORA-10458

发生背景：

搭建11g DG ，备库rman同步后打开备库提示如下：

SQL> alter database open read only;

alter database open read only

*

ERROR at line 1:

ORA-10458: standby database requires recovery

ORA-01152: file 1 was not restored from a sufficiently old backup

ORA-01110: data file 1: '/u01/app/oracle/oradata/test/system01.dbf'

查看备库日志，发现一堆Error 12154 received logging on to the standby的报错

查询主库：

SQL> select dest_name,status,error from v$archive_dest;

dest_name status ERROR

-----------------------------------------------------------------

log_archive_dest_1 valid

log_archive_dest_2 BAD PARAM ORA-12154: TNS:could not resolve the connect identifier specified I could tnsping the STANDBY from production

..................................................................

分析：log_archive_dest_2是用来指向备库的，负责将归档日志传到备库。

最后发现log_archive_dest_2中的service这里应该和tnsnames中定义的备库的服务名一致。修改后open备库正常打开。