Oracle 11g dataguard failover重建后归档日志没有被应用被NO的
1,主库从库归档记录不一致,如下所示:
做完failover后,坏的旧主库变成了新的从库,但是新从库的归档日志记录不一致,就是archive log list;出来的和v$archived_log出来对不上号,如下所示:
1.1 主库:
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 8
Next log sequence to archive 10
Current log sequence 10
SQL> SQL> select sequence#,applied from v$archived_log order by sequence# asc;
......
---------- ---------
7527 YES
7527 YES
7528 YES
7528 YES
7529 YES
7530 YES
7531 YES
7532 YES
7533 YES
14529 rows selected.大家可以看到主库中archive log list和v$archived_log记录归档不一致。
1.2 从库:
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 10
Next log sequence to archive 0
Current log sequence 10
SQL>
SQL> select sequence#,applied from v$archived_log order by sequence# asc;
SEQUENCE# APPLIED
---------- ---------
9 IN-MEMORY
SQL>从库的归档也一直没有被应用,而且两者也查了一个数字差,一个为10,一个为9。
PS:大家看到主库和从库归档号没有统一起来,不一致。
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2,清除新主库的归档记录
问题原因是在新主库上保留的还是旧主库的归档日志记录,需要手工清理一下,在新主库上执行清除记录:
SQL> execute sys.dbms_backup_restore.resetCfileSection(11);
PL/SQL procedure successfully completed.
SQL>
SQL>
SQL> select sequence#,applied from v$archived_log order by sequence# asc;
no rows selected
SQL> 去归档日志目录,人为删除旧的归档日志
[Oracle@oracle_standby1 archivelog]$ rm -rf 2015_12_13/ 2015_12_19 2015_12_20 2015_12_21 2015_12_22 2015_12_23 2015_12_24 2015_12_25
[oracle@oracle_standby1 archivelog]$ 然后进入rman执行
RMAN> catalog db_recovery_file_dest;
RMAN> catalog db_recovery_file_dest;
using target database control file instead of recovery catalog
searching for all files in the recovery area
List of Files Unknown to the Database
=====================================
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_9_c7c1v5qw_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_7_c7c1ttf1_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_8_c7dst287_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_7_c7dssvfd_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_9_c7dst8wr_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_8_c7c1v0ff_.log
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/archivelog/2015_12_26/o1_mf_1_9_c7wqvrp9_.arc
Do you really want to catalog the above files (enter YES or NO)? YES
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/archivelog/2015_12_26/o1_mf_1_9_c7wqvrp9_.arc
List of Files Which Where Not Cataloged
=======================================
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_9_c7c1v5qw_.log
RMAN-07529: Reason: catalog is not supported for this file type
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_7_c7c1ttf1_.log
RMAN-07529: Reason: catalog is not supported for this file type
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_8_c7dst287_.log
RMAN-07529: Reason: catalog is not supported for this file type
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_7_c7dssvfd_.log
RMAN-07529: Reason: catalog is not supported for this file type
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_9_c7dst8wr_.log
RMAN-07529: Reason: catalog is not supported for this file type
File Name: /oracle/app/oracle/flash_recovery_area/STANDBY/onlinelog/o1_mf_8_c7c1v0ff_.log
RMAN-07529: Reason: catalog is not supported for this file type
RMAN> exit然后进入sql命令查看:
SQL> select sequence#,applied from v$archived_log order by sequence# asc;
SEQUENCE# APPLIED
---------- ---------
9 NO
SQL>
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3,之后switch切换日志测试
主库:
SQL> alter system switch logfile;
System altered.
SQL> select sequence#,applied from v$archived_log order by sequence# asc;
SEQUENCE# APPLIED
---------- ---------
9 NO
10 NO
10 NO
SQL> 从库:
SQL> select sequence#,applied from v$archived_log order by sequence# asc;
SEQUENCE# APPLIED
---------- ---------
9 YES
10 YES
SQL> 看到两边归档日志以及被应用情况都一致了。
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