问:我的数据库重新启动后,出现了Ora-00600 4194错误,日志如下:
Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner
/bdump/conner_smon_17113.trc:
ORA-00600: internal error code, arguments:
[4194], [43], [46], [], [], [], [], []
Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner
/udump/conner_ora_17121.trc:
ORA-00600: internal error code, arguments:
[4194], [45], [44], [], [], [], [], []
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请问具体应该怎样解决?
答:具体的解决办法是通过备份来进行恢复,因为Ora-00600 4194错误的出现说明UNDO段出现了问题,如果你没有备份,业可以通过特殊的初始化参数进行强制启动,下文针对Oracle的隐含参数进行恢复说明(由于你的实际情况可能会有所出入,所以请你进行测试前先行备份)。
◆首先你需要确定当前的回滚段名称,注释:(可以从alert文件中获得)
Sat Jan 21 13:55:21 2006
Undo Segment 11 Onlined
Undo Segment 12 Onlined
Undo Segment 13 Onlined
Successfully onlined Undo Tablespace 16.
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◆注意:对应的AUM (auto undo management) 下的回滚段名称为:
'_SYSSMU11$','_SYSSMU12$','_SYSSMU13$'
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◆此时你可以修改init .ora参数文件,使用Oracle隐含参数_corrupted_rollback_segments将回滚段标记为损坏,然后启动数据库,Oracle则会跳过对于这些回滚段的相关操作,强制启动数据库。
._corrupted_rollback_segments='_SYSSMU11$','_SYSSMU12$','_SYSSMU13$'
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◆然后使用init .ora参数文件启动数据库:
[oracle@jumper dbs]$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on Sat Jan 21 13:56:47 2006
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to an idle instance.
SQL> startup pfile=initconner.ora
ORACLE instance started.
Total System Global Area 97588504 bytes
Fixed Size 451864 bytes
Variable Size 33554432 bytes
Database Buffers 62914560 bytes
Redo Buffers 667648 bytes
Database mounted.
Database opened.
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现在数据库正常Open。
◆注意观察alert文件所获得的如下信息:
Sat Jan 21 13:57:03 2006
SMON: enabling tx recovery
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:03 2006
Database Characterset is ZHS16GBK
Sat Jan 21 13:57:03 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:04 2006
Created Undo Segment _SYSSMU1$
Undo Segment 1 Onlined
Completed: ALTER DATABASE OPEN
aSat Jan 21 14:02:11 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
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◆现在你可以重新创建新的UNDO表空间,删除出现问题的表空间,修改参数文件,由参数文件生成新的spfile,然后重新启动数据库:
SQL> create undo tablespace undotbs1
2 datafile '/opt/oracle/oradata/conner/undotbs1.dbf' size 10M;
Tablespace created.
SQL> alter system set undo_tablespace=undotbs1;
System altered.
SQL> drop tablespace undotbs2;
Tablespace dropped.
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◆请注意此时的alert文件记录的:
Sat Jan 21 14:03:29 2006
create undo tablespace undotbs1
datafile '/opt/oracle/oradata/conner/undotbs1.dbf' size 10M
Sat Jan 21 14:03:29 2006
Created Undo Segment _SYSSMU2$
Created Undo Segment _SYSSMU3$
Created Undo Segment _SYSSMU4$
Created Undo Segment _SYSSMU5$
Created Undo Segment _SYSSMU6$
Created Undo Segment _SYSSMU7$
Created Undo Segment _SYSSMU8$
Created Undo Segment _SYSSMU9$
Created Undo Segment _SYSSMU10$
Created Undo Segment _SYSSMU14$
Starting control autobackup
Control autobackup written to DISK device
handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-00'
Completed: create undo tablespace undotbs1
datafile '/opt/ora
Sat Jan 21 14:03:43 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1.
Undo Segment 1 Offlined
Undo Tablespace 16 successfully switched out.
Sat Jan 21 14:03:43 2006
ALTER SYSTEM SET undo_tablespace='UNDOTBS1' SCOPE=MEMORY;
Sat Jan 21 14:07:18 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 14:08:06 2006
drop tablespace undotbs2
Sat Jan 21 14:08:07 2006
Starting control autobackup
Control autobackup written to DISK device
handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-01'
Completed: drop tablespace undotbs2
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◆请修改参数文件,变更undo表空间,并取消_corrupted_rollback_segments设置:
*.undo_tablespace='UNDOTBS1'
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◆然后由参数文件创建spfile文件。
SQL> create spfile from pfile;
File created.
SQL>shutdown immediate;
Database closed.Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 97588504 bytes
Fixed Size 451864 bytes
Variable Size 33554432 bytes
Database Buffers 62914560 bytes
Redo Buffers 667648 bytes
Database mounted.Database opened.
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◆然后重起数据库,观察alert文件:
Sat Jan 21 14:08:36 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1.
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◆此时数据库恢复正常,通常建议立即全库exp,然后重新建库,再imp恢复数据库。
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