ORA-00349|激活 ADG 備庫時遇到的問題及處理方法

近日有一套實時同步的 ASM 管理的單機 11204 ADG 備庫,由於業務需要,想要脫離主庫的約束,想激活拉成讀寫庫直接升級成 ASM 管理的 19C,閃回快照模式無法滿足要求,隻能 ALTER DATABASE ACTIVATE STANDBY DATABASE 強制切成可讀寫的主庫。說幹就幹,先將其切成主庫,升級過程等下次在一起討論。

--主庫
--主庫設置為 defer, 取消備庫日志應用,關庫啟動到 mount 狀態進行。
show parameter log_archive_dest_state_2
alter system set log_archive_dest_state_2=defer scope=both sid='*';
 
--備庫
alter database recover managed standby database cancel;
shu immediate
startup mount
 
--強制拉成主庫,很遺憾報錯 ORA-00349
SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;
ALTER DATABASE ACTIVATE STANDBY DATABASE
*
ERROR at line 1:
ORA-00349: failure obtaining block size for '+JIEKE_DATA'
ORA-15001: diskgroup "JIEKE_DATA" does not exist or is not mounted
ORA-15001: diskgroup "JIEKE_DATA" does not exist or is not mounted

使用 ACTIVATE 命令想強制拉成主庫,很遺憾如下圖報錯 ORA-00349。alert 日志中發現有很多清理 redo log 的報錯,“ORA-00313: open failed…”無法打開日志組 5、6、23,於是查看日志組成員確實發現 redolog 創建的有問題,member 成員顯示的為不存在的磁盤組 “+JIEKE_DATA” 而不是具體路徑,真是存在的磁盤組“+JIEKER_DATA”。這就是問題所在,redolog 創建錯誤,切成主庫時 redolog 又是必須的,故報錯瞭,那麼現在就是將這個錯誤的 redolog 重建,問題就會得到解決。但實際上不是這樣的,折騰瞭好久也沒解決,繼續往下看。

GROUP# Member
---------- ---------------------------------------------------------------------------------------------------
  5 +JIEKE_DATA
  5 +JIEKE_DATA
  6 +JIEKE_DATA
  6 +JIEKE_DATA
 23 +JIEKE_DATA
 23 +JIEKE_DATA
 11 +JIEKER_DATA/jiekexu/onlinelog/group_11.1621.1065127343
 11 +JIEKER_ARCH/jiekexu/onlinelog/group_11.389.1065127355
 12 +JIEKER_DATA/jiekexu/onlinelog/group_12.1620.1065127363
 12 +JIEKER_ARCH/jiekexu/onlinelog/group_12.395.1065127371
 13 +JIEKER_DATA/jiekexu/onlinelog/group_13.1619.1065127381
 
 SELECT to_char(f.group#) groupno, to_char(l.thread#) thread, f.member member, f.type redo_file_type, l.status group_status, f.status member_status, l.bytes/1024/1024 bytes, l.archived archived 
FROM v$logfile f, v$log l WHERE f.group# = l.grSQL> oup# ORDER BY f.group#, f.member;
SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> 2 
Group Thread Member  Redo Type Group Status Member Status Size(M) Archived
------ ------ -------------------- ---------- ------------ --------------- -------- ----------
5 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
6 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
23 1 +JIEKE_DATA  ONLINE CLEARING_CUR INVALID  4,096 YES
      RENT
 
 1 +JIEKE_DATA  ONLINE CLEARING_CUR INVALID  4,096 YES
      RENT
 
27 2 +JIEKER_DATA/jiekexu/ ONLINE UNUSED    4,096 YES
  onlinelog/group_27.1
  741.1065129955
 
28 2 +JIEKER_DATA/jiekexu/ ONLINE UNUSED    4,096 YES
  onlinelog/group_28.1
  742.1065129973

alert 日志如下:

Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 5 of thread 1
Clearing online redo logfile 5 +JIEKE_DATA
Clearing online log 5 of thread 1 sequence number 4751
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 5 of thread 1
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 5 of thread 1
Clearing online redo logfile 5 complete
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 6 of thread 2
Clearing online redo logfile 6 +JIEKE_DATA
Clearing online log 6 of thread 2 sequence number 2592
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 6 of thread 2
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 6 of thread 2
Clearing online redo logfile 6 complete
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 23 of thread 1
Clearing online redo logfile 23 +JIEKE_DATA
Clearing online log 23 of thread 1 sequence number 4752
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 23 of thread 1
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 23 of thread 1
Clearing online redo logfile 23 complete
Resetting resetlogs activation ID 2008461997 (0x77b6b2ad)
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 5 of thread 1
Errors in file /app/oracle/diag/rdbms/jiekexu/jiekexu/trace/jiekexu_ora_30872.trc:
ORA-00313: open failed for members of log group 5 of thread 1
ORA-349 signalled during: ALTER DATABASE ACTIVATE PHYSICAL STANDBY DATABASE…
Tue Mar 02 22:42:30 2021
alter database drop logfile group 23
ORA-1623 signalled during: alter database drop logfile group 23…
Tue Mar 02 22:45:07 2021
RFS[7]: Assigned to RFS process 10180
RFS[7]: Opened log for thread 2 sequence 2592 dbid 1797812601 branch 1063804222
Archived Log entry 1100 added for thread 2 sequence 2592 rlc 1063804222 ID 0x77b6b2ad dest 2:
Tue Mar 02 22:45:08 2021
RFS[8]: Assigned to RFS process 10277
RFS[8]: Selected log 17 for thread 2 sequence 2593 dbid 1797812601 branch 1063804222
Tue Mar 02 22:45:08 2021
Primary database is in MAXIMUM PERFORMANCE mode

重建備庫 redolog

那麼,這裡將上演的是重建備庫 redolog 的相關操作步驟。

SQL> alter database drop logfile group 27;
alter database drop logfile group 27
*
ERROR at line 1:
ORA-01156: recovery or flashback in progress may need access to files
--由於開啟瞭日志應用進程,直接刪除會報錯,故需要停止日志應用,修改參數 standby_file_management 為手動。
SQL> alter database recover managed standby database cancel;
 
Database altered.
SQL> alter system set standby_file_management='manual' scope=both sid='*';
 
Database altered.
SQL> show parameter standby_file_management
 
NAME     TYPE   VALUE
------------------------------------ ---------------------- ------------------------------
standby_file_management  string   manual
SQL> alter database drop logfile group 27;
 
Database altered.
 
--由於日志組不能少於 2 個,故 日志組 28 不不能夠刪除。
SQL> alter database drop logfile group 28;
alter database drop logfile group 28
*
ERROR at line 1:
ORA-01567: dropping log 28 would leave less than 2 log files for instance JIEKEXU2 (thread 2)
ORA-00312: online log 28 thread 2: '+JIEKER_DATA/jiekexu/onlinelog/group_28.1742.1065129973'

下面則通過繼續應用日志、重啟、主庫切日志、重命名等各種手段繼續嘗試刪除這三個有問題的日志組。

--重啟備庫刪除日志組 6、23,由於是當前日志組無法刪除,慶幸日志組 5 成功刪除瞭。
SQL> alter database drop logfile group 6;
alter database drop logfile group 6
*
ERROR at line 1:
ORA-01623: log 6 is current log for instance JIEKEXU2 (thread 2) - cannot drop
ORA-00312: online log 6 thread 2: '+JIEKE_DATA'
ORA-00312: online log 6 thread 2: '+JIEKE_DATA'
 
SQL> alter database drop logfile group 5;
 
Database altered.
 
SQL> alter database drop logfile group 23;
alter database drop logfile group 23
*
ERROR at line 1:
ORA-01623: log 23 is current log for instance jiekexu (thread 1) - cannot drop
ORA-00312: online log 23 thread 1: '+JIEKE_DATA'
ORA-00312: online log 23 thread 1: '+JIEKE_DATA'
 
--隻剩兩組日志組也是當前日志組,則當前日志組無法刪除,嘗試進行 rename 操作,但也是無效或者缺失命令。
 
SQL> alter database rename '+JIEKE_DATA' to '+JIEKER_DATA';
alter database rename '+JIEKE_DATA' to '+JIEKER_DATA'
   *
ERROR at line 1:
ORA-02231: missing or invalid option to ALTER DATABASE
 
SQL> alter database rename '+JIEKE_DATA' to '+JIEKER_DATA/jiekexu/onlinelog/group_6.dbf';
alter database rename '+JIEKE_DATA' to '+JIEKER_DATA/jiekexu/onlinelog/group_6.dbf'
   *
ERROR at line 1:
ORA-02231: missing or invalid option to ALTER DATABASE
 
--當然繼續激活為主庫肯定也是報錯。那就繼續開啟日志同步模式,先保持備庫同步吧。
SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;
ALTER DATABASE ACTIVATE STANDBY DATABASE
*
ERROR at line 1:
ORA-00349: failure obtaining block size for '+JIEKE_DATA'
ORA-15001: diskgroup "JIEKE_DATA" does not exist or is not mounted
ORA-15001: diskgroup "JIEKE_DATA" does not exist or is not mounted
 
SQL> alter database recover managed standby database using current logfile disconnect from session;
 
Database altered.

重建備庫控制文件解決

第二日早晨,睡醒之後頭腦清晰想到備庫既然無法刪除,那主庫肯定是可以刪除的。通過主庫刪除日志組 6、23 之後,再重建一個備庫的控制文件就可以解決。這樣也很簡單,主庫刪除備庫有問題的兩組日志組後使用 rman 備份一個備庫的 控制文件,然後 scp 到備庫,備庫重啟到 nomount 恢復控制文件,啟動到 mount 就好瞭。

--主庫:
SQL> alter database drop logfile group 6;
Database altered.
SQL> alter database drop logfile group 23;
Database altered.
 
rman target /
RMAN> backup current controlfile for standby format '/home/oracle/backup20210303%d_%I_%s_%p.ctl';
scp /home/oracle/backup20210303%d_%I_%s_%p.ctl jiekeadg:/home/oracle/
 
--備庫
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
Database altered.
 
SQL> shu immediate 
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL> startup nomount 
ORACLE instance started.
Total System Global Area 1.0689E+11 bytes
Fixed Size   2265864 bytes
Variable Size  4.2144E+10 bytes
Database Buffers  6.4425E+10 bytes
Redo Buffers  323678208 bytes
SQL> exit
 
jiekeadg:/home/oracle(jiekexu)>rman target /
Recovery Manager: Release 11.2.0.4.0 - Production on Wed Mar 3 10:07:34 2021
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: JIEKEXU (not mounted)
RMAN> restore standby controlfile from '/home/oracle/backup20210303JIEKEXU_1797812601_106_1.ctl';
Starting restore at 2021-03-03 10:08:03
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=3009 device type=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output file name=+JIEKER_DATA/jiekexu/controlfile/current.1739.1065125909
output file name=+JIEKER_ARCH/jiekexu/controlfile/current.323.1065125911
Finished restore at 2021-03-03 10:08:04
RMAN> sql'alter database mount';
sql statement: alter database mount
released channel: ORA_DISK_1
RMAN> exit
 
-- SQLPLUS 裡應用 MRP0 進程同步數據。
jiekeadg:/home/oracle(jiekexu)>sqlplus / as sysdba
SQL> alter database recover managed standby database using current logfile disconnect from session;
 
Database altered.
SQL> /
 
NAME  VALUE  UNIT    TIME_COMPUTED
------------- -------------------- ------------------------------ ------------------------------
transport lag +00 00:00:00  day(2) to second(0) interval 03/03/2021 10:19:08
apply lag +00 00:00:00  day(2) to second(0) interval 03/03/2021 10:19:08

重建控制文件後恢復的備庫中就沒有瞭錯誤的磁盤組,但這樣時間長一些則備庫日志應用會延遲,因為 standby_log 日志狀態全部為 UNASSIGNED 的。需要重建備庫 standby redolog 日志組後它的狀態才會變成 ACTIVE。
取消日志應用,修改參數為 manual 刪除原有日志組,重建日志組改回參數應用日志同步進程即可。

SELECT to_char(f.group#) groupno, to_char(l.thread#) thread, f.member member, f.type redo_file_type, l.status group_status, f.status member_status, l.bytes/1024/1024 bytes, l.archived archived 
FROM v$logfile f, v$log l WHERE f.group# = l.group# ORDER BY f.group#, f.member;SQL> 
SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> 2 
Group Thread Member  Redo Type Group Status Member Status Size(M) Archived
------ ------ -------------------- ---------- ------------ --------------- -------- ----------
1 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
2 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
3 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
4 1 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
5 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
7 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
8 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
9 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
10 2 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
24 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
Database altered.
SQL> show parameter standby_file_management
NAME     TYPE   VALUE
------------------------------------ ---------------------- ------------------------------standby_file_management  string   manual
SQL> 
SQL> select inst_id,GROUP#,THREAD#,SEQUENCE#,USED,ARCHIVED,STATUS from gv$standby_log; 
 INST_ID GROUP# THREAD# SEQUENCE# USED Archived STATUS
---------- ---------- ---------- ---------- ---------- ---------- --------------------
  1  11  1  0  0 YES UNASSIGNED
  1  12  1  0  0 YES UNASSIGNED
  1  13  1  0  0 YES UNASSIGNED
  1  14  1  0  0 YES UNASSIGNED
  1  15  1  0  0 YES UNASSIGNED
 
alter database drop logfile group 11;
alter database drop logfile group 12; 
alter database drop logfile group 13;
alter database drop logfile group 14;
alter database drop logfile group 15;
ALTER DATABASE ADD standby LOGFILE THREAD 1 ('+JIEKER_DATA','+JIEKER_ARCH') SIZE 4G;
ALTER DATABASE ADD standby LOGFILE THREAD 1 ('+JIEKER_DATA','+JIEKER_ARCH') SIZE 4G;
ALTER DATABASE ADD standby LOGFILE THREAD 1 ('+JIEKER_DATA','+JIEKER_ARCH') SIZE 4G;
ALTER DATABASE ADD standby LOGFILE THREAD 1 ('+JIEKER_DATA','+JIEKER_ARCH') SIZE 4G;
ALTER DATABASE ADD standby LOGFILE THREAD 1 ('+JIEKER_DATA','+JIEKER_ARCH') SIZE 4G;
 
SQL> select inst_id,GROUP#,THREAD#,SEQUENCE#,USED,ARCHIVED,STATUS from gv$standby_log; 
 INST_ID GROUP# THREAD# SEQUENCE# USED Archived STATUS
---------- ---------- ---------- ---------- ---------- ---------- --------------------
  1  6  1 4797 3026358272 YES ACTIVE
  1  11  1  0  0 YES UNASSIGNED
  1  12  1  0  0 YES UNASSIGNED
  1  13  1  0  0 YES UNASSIGNED
  1  14  1  0  0 YES UNASSIGNED
SQL> alter system set standby_file_management='AUTO' scope=both sid='*';
SQL> alter database open;
alter database recover managed standby database using current logfile disconnect from session;
Database altered.

找到最終問題所在

完成重建後,本以為已經萬事大吉瞭,但一開庫應用日志卻發現後臺日志中所有 redolog 日志組都被清理瞭。這才意識到問題的根源所在,立馬查看瞭路徑相關的參數發現 db_create_online_log_dest 參數設置錯誤,導致創建出瞭錯誤的磁盤組

jiekeadg:/home/oracle(jiekexu)>sqlplus / as sysdba 
 
SQL*Plus: Release 11.2.0.4.0 Production on Wed Mar 3 10:52:04 2021
 
Copyright (c) 1982, 2013, Oracle. All rights reserved.
 
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options
 
SQL> show parameter db_create_online_log_dest_ 
 
NAME     TYPE VALUE
------------------------------------ ----------- ------------------------------
db_create_online_log_dest_1  string +JIEKE_DATA
db_create_online_log_dest_2  string +JIEKE_DATA
db_create_online_log_dest_3  string
db_create_online_log_dest_4  string
db_create_online_log_dest_5  string
SQL> alter system set db_create_online_log_dest_1='+JIEKER_DATA' scope=spfile;
 
System altered.
 
SQL> alter system set db_create_online_log_dest_2='+JIEKER_DATA' scope=spfile;
 
System altered.

但是現在修改完參數所有的日志組成員也都出現在錯誤的磁盤組瞭,因為有瞭當前日志組 4、10 占用瞭,重建日志組也行不通,故隻能再次重建備庫控制文件瞭。以上主庫備份控制文件傳到備庫恢復的過程再來一遍即可。

SELECT to_char(f.group#) groupno, to_char(l.thread#) thread, f.member member, f.type redo_file_type, l.status group_status, f.status member_status, l.bytes/1024/1024 bytes, l.archived archived 
FROM v$logfile f, v$log l WHERE f.group# = l.group# ORDER BY f.group#, f.member;SQL> 
SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> 2 
Group Thread Member  Redo Type Group Status Member Status Size(M) Archived
------ ------ -------------------- ---------- ------------ --------------- -------- ----------
1 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
2 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
3 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
4 1 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
5 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 1 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
7 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
8 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
9 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
10 2 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CURRENT INVALID  4,096 YES
24 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 2 +JIEKE_DATA  ONLINE CLEARING INVALID  4,096 YES
 
20 rows selected.

最終激活備庫

再一次重建後正常恢復同步,然後關閉實例啟動到 mount 狀態,激活 ADG 備庫,重啟驗證即可。

SQL> shu immediate 
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> 
SQL> startup mount 
ORACLE instance started.
 
Total System Global Area 1.0689E+11 bytes
Fixed Size   2265864 bytes
Variable Size  4.2144E+10 bytes
Database Buffers  6.4425E+10 bytes
Redo Buffers  323678208 bytes
Database mounted.
SQL> 
SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;
 
Database altered.
 
SQL> alter database open;
 
Database altered.
 
SQL> select DATABASE_ROLE from v$database;
 
DATABASE_ROLE
--------------------------------
PRIMARY
 
SQL> shu immediate 
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup 
ORACLE instance started.
Total System Global Area 1.0689E+11 bytes
Fixed Size   2265864 bytes
Variable Size  4.2144E+10 bytes
Database Buffers  6.4425E+10 bytes
Redo Buffers  323678208 bytes
Database mounted.
Database opened.
SQL> exit

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