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這篇文章給大家分享的是有關物理備庫open報錯ORA-10458怎么辦的內容。小編覺得挺實用的,因此分享給大家做個參考,一起跟隨小編過來看看吧。
問題展現:
機房掉電導致oracle 11g RAC+DG 所有3節點都非正常關機。
開機之后,RAC兩節點正常啟動,DG上面的數據庫實例只能啟動到mount狀態,無法open。
DG:
alter database open;
ORA-10458: standby database requires recovery
ORA-01196: file 1 is inconsistent due to a failed media recovery session
ORA-01110: data file 1: '/oracle/oradata/system01.dbf'
RAC01的alert日志報錯:
Thread 1 advanced to log sequence 71686 (LGWR switch)
Current log# 2 seq# 71686 mem# 0: +DATA/scprd/onlinelog/group_2.300.926178257
Tue Dec 26 14:43:46 2017
Archived Log entry 267550 added for thread 1 sequence 71685 ID 0x350f8bcc dest 1:
Tue Dec 26 14:43:52 2017
ALTER SYSTEM SET log_archive_dest_state_2='DEFER' SCOPE=BOTH SID='*';
Tue Dec 26 14:43:59 2017
Error 12169 received logging on to the standby
ALTER SYSTEM SET log_archive_dest_state_2='ENABLE' SCOPE=BOTH SID='*';
Tue Dec 26 14:44:01 2017
Thread 1 cannot allocate new log, sequence 71687
Checkpoint not complete
Current log# 2 seq# 71686 mem# 0: +DATA/scprd/onlinelog/group_2.300.926178257
Thread 1 advanced to log sequence 71687 (LGWR switch)
Current log# 1 seq# 71687 mem# 0: +DATA/scprd/onlinelog/group_1.304.926178257
Tue Dec 26 14:44:07 2017
Archived Log entry 267552 added for thread 1 sequence 71686 ID 0x350f8bcc dest 1:
Tue Dec 26 14:49:14 2017
Error 12169 received logging on to the standby
Tue Dec 26 14:49:50 2017
Thread 1 advanced to log sequence 71688 (LGWR switch)
Current log# 2 seq# 71688 mem# 0: +DATA/scprd/onlinelog/group_2.300.926178257
Tue Dec 26 14:49:50 2017
Archived Log entry 267558 added for thread 1 sequence 71687 ID 0x350f8bcc dest 1:
Tue Dec 26 14:49:50 2017
Error 12169 received logging on to the standby
FAL[server, ARC3]: FAL archive failed, see trace file.
ARCH: FAL archive failed. Archiver continuing
ORACLE Instance SCPRD1 - Archival Error. Archiver continuing.
Tue Dec 26 14:51:09 2017
主從日志同步有問題:
DG:
SQL> COL NAME FOR A13
SQL> COL VALUE FOR A20
SQL> COL UNIT FOR A30
SQL> SET LINES 122
SQL> SELECT NAME,VALUE,UNIT,TIME_COMPUTED
2 FROM V$DATAGUARD_STATS
3 WHERE NAME IN ('transport lag','apply lag');
NAME VALUE UNIT TIME_COMPUTED
------------- -------------------- ------------------------------ ------------------------------
transport lag day(2) to second(0) interval 12/26/2017 14:19:22
apply lag +00 01:53:52 day(2) to second(0) interval 12/26/2017 14:19:22
apply lag有延時。
主庫:
SQL> select thread#, max(sequence#) from v$archived_log group by thread#;
THREAD# MAX(SEQUENCE#)
---------- --------------
1 71710
2 68404
DG:
SQL> select thread#, max(sequence#) from v$archived_log where applied='YES' group by thread#;
THREAD# MAX(SEQUENCE#)
---------- --------------
1 71634
2 68325
DG比主庫的SEQUENCE慢,主從同步有問題。
問題解決:
查看RAC01的tnsnames有問題:
SCPRDDG =
CPRD =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = wmsscan2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SCPRD)
)
)
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.10.20)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SCPRDDG)
)
)
修改為:
SCPRDDG =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.10.20)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SCPRDDG)
)
)
重新測試同步,正常了。
apply lag沒有延時了。
主從日志同步的SEQUENCE也一樣了。
再把DG變為open:
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
Database altered.
SQL> alter database open read only;
Database altered.
SQL> select RECOVERY_MODE from v$archive_dest_status where rownum<5;
RECOVERY_MODE
-----------------------
IDLE
IDLE
IDLE
IDLE
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
Database altered.
SQL> select RECOVERY_MODE from v$archive_dest_status where rownum<5;
RECOVERY_MODE
-----------------------
MANAGED REAL TIME APPLY
IDLE
IDLE
IDLE
SQL> SELECT NAME,VALUE,UNIT,TIME_COMPUTED
FROM V$DATAGUARD_STATS
2 3 WHERE NAME IN ('transport lag','apply lag');
NAME VALUE UNIT TIME_COMPUTED
------------- -------------------- ------------------------------ ------------------------------
transport lag +00 00:00:00 day(2) to second(0) interval 12/26/2017 16:31:30
apply lag +00 00:00:00 day(2) to second(0) interval 12/26/2017 16:31:30
DG可以提供只讀服務了,一切恢復正常。
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