oracle dataguard ora-01624解决方法

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oracle physical dataguard :

drop logfile 的时候报错：ora-01624，通过查找文档，解决办法如下：

SQL> recover managed standby database cancel;
Media recovery complete.
SQL> alter database drop logfile '/u01/oradata/demo/redo07.log';
alter database drop logfile '/u01/oradata/demo/redo07.log'
*
ERROR at line 1:
ORA-01624: log 7 needed for crash recovery of instance demo (thread 1)
ORA-00312: online log 7 thread 1: '/u01/oradata/demo/redo07.log'

/////////////////////////////////////////////////////////////////////////////////////////////////////////////

主库：

SQL> select group#,member from v$logfile;

    GROUP# MEMBER
---------- ---------------------------------------------
         3 /u01/oradata/demo/redo03.log
         2 /u01/oradata/demo/redo02.log
         1 /u01/oradata/demo/redo01.log
         4 /u01/oradata/demo/redo04.log
         5 /u01/oradata/demo/redo05.log
         6 /u01/oradata/demo/redo06.log
         7 /u01/oradata/demo/redo07.log

7 rows selected.

SQL> select group#,status from V$log;

    GROUP# STATUS
---------- ----------------
         1 CURRENT
         2 INACTIVE
         3 INACTIVE
         7 INACTIVE (确保即将删除的这个logfile不是current redo logfile,并且保证log状态是INACTIVE,如果不是，请checkpoint一下！！！)

从库：

SQL> alter system set standby_file_management=auto;

System altered.

SQL> recover managed standby database disconnect;
Media recovery complete.

SQL> select group#,member,type from v$logfile;

    GROUP# MEMBER                                        TYPE
---------- --------------------------------------------- -------
         3 /u01/oradata/demo/redo03.log                  ONLINE
         2 /u01/oradata/demo/redo02.log                  ONLINE
         1 /u01/oradata/demo/redo01.log                  ONLINE
         4 /u01/oradata/demo/redo04.log                  STANDBY
         5 /u01/oradata/demo/redo05.log                  STANDBY
         6 /u01/oradata/demo/redo06.log                  STANDBY
         7 /u01/oradata/demo/redo07.log                  ONLINE

7 rows selected.

SQL> alter system set standby_file_management=manual;

System altered.

SQL> recover managed standby database cancel;
Media recovery complete.

主库：

SQL> alter database drop logfile '/u01/oradata/demo/redo07.log';

Database altered.

SQL> select group#,member from v$logfile;

6 rows selected.

从库：

SQL> alter database drop logfile '/u01/oradata/demo/redo07.log';
alter database drop logfile '/u01/oradata/demo/redo07.log'
*
ERROR at line 1:
ORA-01624: log 7 needed for crash recovery of instance demo (thread 1)
ORA-00312: online log 7 thread 1: '/u01/oradata/demo/redo07.log'

SQL> alter system checkpoint;
alter system checkpoint
*
ERROR at line 1:
ORA-01109: database not open

SQL> select group#,status from V$log;

    GROUP# STATUS
---------- ----------------
         1 CLEARING_CURRENT
         7 CLEARING
         3 CLEARING
         2 CLEARING

SQL> alter database drop logfile '/u01/oradata/demo/redo07.log';
alter database drop logfile '/u01/oradata/demo/redo07.log'
*
ERROR at line 1:
ORA-01624: log 7 needed for crash recovery of instance demo (thread 1)
ORA-00312: online log 7 thread 1: '/u01/oradata/demo/redo07.log'

SQL> select group#,member from v$logfile;

7 rows selected.

SQL> alter database clear logfile group 7;

Database altered.

SQL> alter database drop logfile '/u01/oradata/demo/redo07.log';

Database altered.

SQL> select group#,member from v$logfile;

6 rows selected.

SQL> alter system set standby_file_management=auto;

System altered.

SQL> recover managed standby database disconnect;
Media recovery complete.

主库：

SQL> alter system switch logfile;

System altered.

SQL> select name,standby_dest,applied from v$archived_log;

NAME                                               STA APP
-------------------------------------------------- --- ---
/u01/oradata/log/1_3_714156559.dbf                 NO NO
/u01/oradata/log/1_4_714156559.dbf                 NO NO
/u01/oradata/log/1_5_714156559.dbf                 NO NO
...

NAME                                               STA APP
-------------------------------------------------- --- ---
/u01/oradata/log/1_54_714156559.dbf                NO NO
10gstandby                                         YES YES
/u01/oradata/log/1_55_714156559.dbf                NO NO
10gstandby                                         YES NO
/u01/oradata/log/1_56_714156559.dbf                NO NO
10gstandby                                         YES NO

xxx rows selected.

SQL>

从库：

SQL> select name,standby_dest,applied from v$archived_log;

NAME                                               STA APP
-------------------------------------------------- --- ---
....
/u01/oradata/log/1_51_714156559.dbf                NO YES
/u01/oradata/log/1_52_714156559.dbf                NO YES
/u01/oradata/log/1_53_714156559.dbf                NO YES
/u01/oradata/log/1_54_714156559.dbf                NO YES
/u01/oradata/log/1_55_714156559.dbf                NO YES
/u01/oradata/log/1_56_714156559.dbf                NO YES

21 rows selected.
SQL>

恢复正常！

参考：

1.ASKTOM:

http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:55812348055

2.Metalink：Note:395146.1(未查，没有metalink账号)