标签归档：sys重命名

等保修改oracle SYS用户名要求的请注意—ORA-00600 kokasgi1

发表于 2023 年 3 月 19 日 由 惜分飞

在2019年处理过第一起ORA-00600 kokasgi1 故障到现在,已经过去了近4年,今天又有客户依旧因为修改sys重启库遇到该问题
ora-600-kokasgi1

通过分析确认客户那边在等保的时候要求修改oracle的SYS用户
20230319001510
然后重启数据库，数据库就开始报ORA-600 kokasgi1错误.
再次呼吁:
1. oracle的sys用户名不能修改,这个东西是写在oracle代码里面的，启动的时候会去读取
2.如果已经修改了sys用户名的,请在数据库重启之前一定修改回来

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再次遇到ORA-600 kokasgi1故障恢复

发表于 2020 年 11 月 29 日 由 惜分飞

接到一个朋友数据库无法启动,报错ORA-00600: 内部错误代码, 参数: [kokasgi1]错误:

Sun Nov 29 14:23:15 2020
Thread 1 advanced to log sequence 28572 (thread open)
Thread 1 opened at log sequence 28572
  Current log# 3 seq# 28572 mem# 0: /u01/app/oracle/oradata/xifenfei/redo03.log
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Sun Nov 29 14:23:15 2020
SMON: enabling cache recovery
[3505] Successfully onlined Undo Tablespace 2.
Undo initialization finished serial:0 start:135724 end:135754 diff:30 (0 seconds)
Verifying file header compatibility for 11g tablespace encryption..
Verifying 11g file header compatibility for tablespace encryption completed
SMON: enabling tx recovery
Database Characterset is ZHS16GBK
ORA-00600: 内部错误代码, 参数: [kokasgi1], [], [], [], [], [], [], [], [], [], [], []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Errors in file /u01/app/oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_3505.trc:
ORA-00600: 内部错误代码, 参数: [kokasgi1], [], [], [], [], [], [], [], [], [], [], []
Errors in file /u01/app/oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_3505.trc:
ORA-00600: 内部错误代码, 参数: [kokasgi1], [], [], [], [], [], [], [], [], [], [], []
Error 600 happened during db open, shutting down database
USER (ospid: 3505): terminating the instance due to error 600
Instance terminated by USER, pid = 3505
ORA-1092 signalled during: alter database open...
opiodr aborting process unknown ospid (3505) as a result of ORA-1092

对于这个错误,以前处理过一些类似故障,参考:
ORA-600 kokasgi1故障恢复
重命名sys用户引起数据库启动报ORA-01092 ORA-00600 kokasgi1错误
通过技术手段实现数据库open,查询user$信息
20201129175609

确认sys和system被分别被修改为sysa和systema,由于这个调整导致数据库无法正常启动.把sysa修改为sys,systema修改为system,数据库正常启动,业务测试正常.
20201129175803
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重命名sys用户引起数据库启动报ORA-01092 ORA-00600 kokasgi1错误

发表于 2020 年 8 月 7 日 由 惜分飞

有客户和我反馈,他们为了防止有人使用sys用户进行登录,对sys用户进行了重命名,具体操作语句为:

update user$ set name='THISISSYS' where user#=0;

然后重启数据库发现数据库无法正常启动,报ORA-01092 ORA-00600 kokasgi1错误

[oracle@ecs-d75e-0618923 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 7 14:40:28 2020

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup mount;
ORACLE instance started.

Total System Global Area 6881345536 bytes
Fixed Size                  2214056 bytes
Variable Size            4227860312 bytes
Database Buffers         2617245696 bytes
Redo Buffers               34025472 bytes
Database mounted.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00600: internal error code, arguments: [kokasgi1], [], [], [], [], [], [],[], [], [], [], []
Process ID: 6269
Session ID: 530 Serial number: 3

以前写过处理过类似问题,参见:ORA-600 kokasgi1故障恢复,通过特殊处理,数据库open之后,对其user#=0的用户修改为SYS.

[oracle@ecs-d75e-0618923 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 7 14:52:09 2020

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup mount;
ORACLE instance started.

Total System Global Area 6881345536 bytes
Fixed Size                  2214056 bytes
Variable Size            4227860312 bytes
Database Buffers         2617245696 bytes
Redo Buffers               34025472 bytes
Database mounted.
SQL> alter database open;

Database altered.

SQL> select name from user$ where user#=0;

NAME
------------------------------
THISISSYS

SQL> update user$ set name='SYS' where user#=0;

1 row updated.

SQL> commit;

Commit complete.

SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.

Total System Global Area 6881345536 bytes
Fixed Size                  2214056 bytes
Variable Size            4227860312 bytes
Database Buffers         2617245696 bytes
Redo Buffers               34025472 bytes
Database mounted.
Database altered.

至此恢复完成,再次sys是oracle内部默认的超级用户,系统很多调用在程序中写死的sys.,对其用户不能进行重命名操作.

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