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redo是oracle数据库比较核心文件,当redo异常之后,数据库无法正常启动,而且有丢失数据的风险,强烈建议条件允许redo多路镜像.redo文件异常的故障可以说是千奇百怪,但是总体上可以分为几类:
数据库归档/非归档模式下inactive redo异常
ORA-00316 ORA-00327
SQL> startup mount
ORACLE instance started.
Total System Global Area 260046848 bytes
Fixed Size 1266896 bytes
Variable Size 83888944 bytes
Database Buffers 167772160 bytes
Redo Buffers 7118848 bytes
Database mounted.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-00316: log 2 of thread 1, type in header is not log file
ORA-00312: online log 2 thread 1: '/u01/oracle/oradata/XFF/redo02.log'
SQL> col member for a40
SQL> set lines 120
SQL> SELECT thread#,
2 a.sequence#,
3 a.group#,
4 TO_CHAR (first_change#, '9999999999999999') "SCN",
5 a.status,
6 MEMBER
7 FROM v$log a, v$logfile b
8 WHERE a.group# = B.GROUP#
9 ORDER BY a.sequence# DESC;
THREAD# SEQUENCE# GROUP# SCN STATUS MEMBER
---------- ---------- ---------- ----------------- ---------------- -----------------------------------
1 15 3 665697 CURRENT /u01/oracle/oradata/XFF/redo03.log
1 14 2 645619 INACTIVE /u01/oracle/oradata/XFF/redo02.log
1 13 1 625540 INACTIVE /u01/oracle/oradata/XFF/redo01.log
SQL> ALTER DATABASE CLEAR LOGFILE GROUP 2;
Database altered.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-00327: log 2 of thread 1, physical size less than needed
ORA-00312: online log 2 thread 1: '/u01/oracle/oradata/XFF/redo02.log'
SQL> alter database drop logfile group 2;
Database altered.
SQL> alter database open;
Database altered.
SQL> alter database add logfile group 2 ('/u01/oracle/oradata/XFF/redo02.log') size 50M reuse;
Database altered.
正常关闭数据库current redo异常
ORA-00316 ORA-01623
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-00316: log 1 of thread 1, type in header is not log file
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> SELECT thread#,
2 a.sequence#,
3 a.group#,
4 TO_CHAR (first_change#, '9999999999999999') "SCN",
5 a.status,
6 MEMBER
7 FROM v$log a, v$logfile b
8 WHERE a.group# = B.GROUP#
9 ORDER BY a.sequence# DESC;
THREAD# SEQUENCE# GROUP# SCN STATUS MEMBER
---------- ---------- ---------- ----------------- ---------------- ----------------------------------
1 16 1 685918 CURRENT /u01/oracle/oradata/XFF/redo01.log
1 15 3 665697 INACTIVE /u01/oracle/oradata/XFF/redo03.log
1 0 2 0 UNUSED /u01/oracle/oradata/XFF/redo02.log
SQL> ALTER DATABASE CLEAR LOGFILE GROUP 1;
ALTER DATABASE CLEAR LOGFILE GROUP 1
*
ERROR at line 1:
ORA-00316: log 1 of thread 1, type 0 in header is not log file
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> ALTER DATABASE drop logfile group 1;
ALTER DATABASE drop logfile group 1
*
ERROR at line 1:
ORA-01623: log 1 is current log for instance XFF (thread 1) - cannot drop
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> recover database until cancel;
Media recovery complete.
SQL> alter database open resetlogs;
Database altered.
数据库异常关闭current/active redo异常
ORA-00316 ORA-01624 ORA-01194
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-00316: log 1 of thread 1, type 0 in header is not log file
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> SELECT thread#,
2 a.sequence#,
3 a.group#,
4 TO_CHAR (first_change#, '9999999999999999') "SCN",
5 a.status,
6 MEMBER
7 FROM v$log a, v$logfile b
8 WHERE a.group# = B.GROUP#
9 ORDER BY a.sequence# DESC;
THREAD# SEQUENCE# GROUP# SCN STATUS MEMBER
---------- ---------- ---------- ----------------- ---------------- -----------------------------------
1 8 2 686310 CURRENT /u01/oracle/oradata/XFF/redo02.log
1 7 1 686294 ACTIVE /u01/oracle/oradata/XFF/redo01.log
1 6 3 686289 INACTIVE /u01/oracle/oradata/XFF/redo03.log
SQL> ALTER DATABASE CLEAR LOGFILE GROUP 1;
ALTER DATABASE CLEAR LOGFILE GROUP 1
*
ERROR at line 1:
ORA-01624: log 1 needed for crash recovery of instance XFF (thread 1)
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> ALTER DATABASE drop logfile group 1;
ALTER DATABASE drop logfile group 1
*
ERROR at line 1:
ORA-01624: log 1 needed for crash recovery of instance XFF (thread 1)
ORA-00312: online log 1 thread 1: '/u01/oracle/oradata/XFF/redo01.log'
SQL> recover database until cancel
ORA-00279: change 686294 generated at 04/20/2013 01:37:16 needed for thread 1
ORA-00289: suggestion : /u01/oracle/oracle/product/10.2.0/db_1/dbs/arch1_7_813202529.dbf
ORA-00280: change 686294 for thread 1 is in sequence #7
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/u01/oracle/oradata/XFF/redo01.log
ORA-00308: cannot open archived log '/u01/oracle/oradata/XFF/redo01.log'
ORA-27047: unable to read the header block of file
Additional information: 2
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u01/oracle/oradata/XFF/system01.dbf'
ORA-01112: media recovery not started
SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u01/oracle/oradata/XFF/system01.dbf'
SQL> alter system set "_allow_resetlogs_corruption"=true scope=spfile;
System altered.
SQL> shutdown immediate;
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 260046848 bytes
Fixed Size 1266896 bytes
Variable Size 83888944 bytes
Database Buffers 167772160 bytes
Redo Buffers 7118848 bytes
Database mounted.
SQL> recover database until cancel
ORA-00279: change 686294 generated at 04/20/2013 01:37:16 needed for thread 1
ORA-00289: suggestion : /u01/oracle/oracle/product/10.2.0/db_1/dbs/arch1_7_813202529.dbf
ORA-00280: change 686294 for thread 1 is in sequence #7
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u01/oracle/oradata/XFF/system01.dbf'
ORA-01112: media recovery not started
SQL> alter database open resetlogs;
Database altered.
在这样的情况下,数据库异常关闭,current/active redo异常,通过使用隐含参数可能可以侥幸的恢复数据库,但是也可能导致数据丢失.这里因为是模拟情况,无业务所以在很多较为繁忙的业务系统中,使用隐含参数resetlogs过程中可能还会遇到如下很多常见的错误,进一步增加了恢复难度
current/active redo异常后附带其他错误
ORA-600[2662]
Wed Dec 07 13:02:49 2011 SMON: enabling cache recovery Errors in file d:\app\administrator\diag\rdbms\hzyl\hzyl\trace\hzyl_ora_3388.trc (incident=216664): ORA-00600: 内部错误代码, 参数: [2662], [2], [1153862134], [2], [1153864845], [12582921], [], [] Incident details in: d:\app\administrator\diag\rdbms\hzyl\hzyl\incident\incdir_216664\hzyl_ora_3388_i216664.trc Errors in file d:\app\administrator\diag\rdbms\hzyl\hzyl\trace\hzyl_ora_3388.trc: ORA-00600: 内部错误代码, 参数: [2662], [2], [1153862134], [2], [1153864845], [12582921], [], [] Error 600 happened during db open, shutting down database USER (ospid: 3388): terminating the instance due to error 600
ORA-00600[4000]
Thu Feb 28 19:29:10 2013 SMON: enabling cache recovery Thu Feb 28 19:29:11 2013 Errors in file /u1/PROD/prodora/db/tech_st/10.2.0/admin/PROD_oracle/udump/prod_ora_20989.trc: ORA-00600: internal error code, arguments: [4000], [50], [], [], [], [], [], [] Thu Feb 28 19:29:13 2013 Incremental checkpoint up to RBA [0x1.3.0], current log tail at RBA [0x1.3.0] Thu Feb 28 19:29:13 2013 Errors in file /u1/PROD/prodora/db/tech_st/10.2.0/admin/PROD_oracle/udump/prod_ora_20989.trc: ORA-00704: bootstrap process failure ORA-00704: bootstrap process failure ORA-00600: internal error code, arguments: [4000], [50], [], [], [], [], [], []
ORA-00704 ORA-00604 ORA-01555
Fri May 4 21:04:21 2012 select ctime, mtime, stime from obj$ where obj# = :1 Fri May 4 21:04:21 2012 Errors in file /oracle/admin/standdb/udump/perfdb_ora_1286288.trc: ORA-00704: bootstrap process failure ORA-00704: bootstrap process failure ORA-00604: error occurred at recursive SQL level 1 ORA-01555: snapshot too old: rollback segment number 40 with name "_SYSSMU40$" too small Error 704 happened during db open, shutting down database USER: terminating instance due to error 704 Instance terminated by USER, pid = 1286288 ORA-1092 signalled during: alter database open resetlogs...
current/active redo异常还可能报如下错误
redo文件损坏报错
Started redo scan Errors in file d:\app\administrator\diag\rdbms\hzyl\hzyl\trace\hzyl_ora_2960.trc (incident=214262): ORA-00353: 日志损坏接近块 12014 更改 9743799889 时间 12/05/2011 09:21:11 ORA-00312: 联机日志 3 线程 1: 'R:\ORADATA\HZYL\REDO03.LOG' Incident details in: d:\app\administrator\diag\rdbms\hzyl\hzyl\incident\incdir_214262\hzyl_ora_2960_i214262.trc Aborting crash recovery due to error 368 Errors in file d:\app\administrator\diag\rdbms\hzyl\hzyl\trace\hzyl_ora_2960.trc: ORA-00368: 重做日志块中的校验和错误 ORA-00353: 日志损坏接近块 12014 更改 9743799889 时间 12/05/2011 09:21:11 ORA-00312: 联机日志 3 线程 1: 'R:\ORADATA\HZYL\REDO03.LOG' ORA-368 signalled during: ALTER DATABASE OPEN...
redo文件被其他实例占用报错
Wed May 16 17:03:11 2012 Started redo scan Wed May 16 17:03:11 2012 Errors in file /oracle/admin/odsdb/udump/odsdb1_ora_2040024.trc: ORA-00305: log 14 of thread 1 inconsistent; belongs to another database ORA-00312: online log 14 thread 1: '/dev/rods_redo1_2_2' ORA-00305: log 14 of thread 1 inconsistent; belongs to another database ORA-00312: online log 14 thread 1: '/dev/rods_redo1_2_1' ORA-305 signalled during: ALTER DATABASE OPEN...
存储整体异常
Mon Oct 17 09:35:09 2011 Errors in file /oracle/app/admin/orcl/bdump/orcl2_lgwr_348814.trc: ORA-00340: IO error processing online log 4 of thread 2 ORA-00345: redo log write error block 6732 count 2 ORA-00312: online log 4 thread 2: '/dev/rredo21' ORA-27063: number of bytes read/written is incorrect IBM AIX RISC System/6000 Error: 6: No such device or address Additional information: -1 Additional information: 1024 Mon Oct 17 09:35:09 2011 LGWR: terminating instance due to error 340
存储IO异常
Fri Feb 21 08:44:42 2014 Thread 1 advanced to log sequence 591 (LGWR switch) Current log# 1 seq# 591 mem# 0: J:\ORADATA\ORCL\REDO01.LOG Fri Feb 21 15:31:20 2014 Errors in file c:\oracle\product\10.2.0\admin\orcl\bdump\orcl_lgwr_10312.trc: ORA-00316: log 1 of thread 1, type 286 in header is not log file ORA-00312: online log 1 thread 1: 'J:\ORADATA\ORCL\REDO01.LOG'
使用_disable_logging参数
Sat May 14 23:16:49 2005 Errors in file d:\oracle\admin\rman\bdump\rman_arc0_736.trc: ORA-16038: log 3 sequence# 72 cannot be archived ORA-00354: corrupt redo log block header ORA-00312: online log 3 thread 1: 'D:\ORACLE\ORADATA\RMAN\REDO03.LOG'
如果你在使用这些思路进行恢复遇到突发情况不能自行解决,请联系我们,将为您提供专业数据库技术支持
Phone:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
姊妹篇
undo异常总结和恢复思路
ORACLE丢失各种文件导致数据库不能OPEN恢复