关于ORA-01187: cannot read from file because it failed verification tests 的处理方法
环境:OEL+Oracle 11.2.0.3+physical standby
问题描述:查询dba_temp_files试图时显示Ora-01187错误号;
ORA-01187: cannot read from file because it failed verification tests
ORA-01110: data file 201: '/oradata/seven/temp01.dbf'
重现下错误:
SQL> select file_id,file_name,tablespace_name from dba_temp_files;
select file_id,file_name,tablespace_name from dba_temp_files
*
ERROR at line 1:
ORA-01187: cannot read from file because it failed verification tests
ORA-01110: data file 201: '/oradata/seven/temp01.dbf'
oerr ora解决方法是:
[oracle@Seven trace]$ oerr ora 01187
01187, 00000, "cannot read from file %s because it failed verification tests"
// *Cause: The data file did not pass the checks to insure it is part of the
// database. Reads are not allowed until it is verified.
// *Action: Make the correct file available to the database. Then, either open
// the database, or execute ALTER SYSTEM CHECK DATAFILES.
初步推断是上次DG进行switchover时导致临时数据库文件出错,解决方法是重建临时数据文件;
带着这个疑问google了下,发现好多朋友遇到这个问题,表示重建下临时文件,或者重新reuse下临时表空间都可以处理这个问题,但是对于问题的根本起因,倒是没有找到原因;很遗憾!
还是来说明我自己的处理方法吧:
由于这个DG环境下的primary主库上报的错,对比了一下主备库的temp表空间,都是30M的大小,而且也都是online状态。
SQL> select name,bytes/1024/1024,status from v$tempfile;
NAME BYTES/1024/1024 STATUS
------------------------------ --------------- -------
/oradata/seven/temp01.dbf 30 ONLINE
删除临时文件:
SQL> alter database tempfile '/oradata/seven/temp01.dbf' drop;
Database altered.
SQL> select name,bytes/1024/1024,status from v$tempfile;
no rows selected
重新添加临时数据文件:
SQL> alter tablespace temp add tempfile '/oradata/seven/temp01.dbf' size 30M reuse;
Tablespace altered.
SQL> select name,bytes/1024/1024,status from v$tempfile;
NAME BYTES/1024/1024 STATUS
------------------------------ --------------- -------
/oradata/seven/temp01.dbf 30 ONLINE
由于场景是DG环境,所以temp的name和bytes的值最好保持主备库一致,方便以后做Switchover;
至于导致ORA-01187错误的主要诱因,还是不明,也没有找到相关的文档;