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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
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
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

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
再次遇到ORA-600 kokasgi1故障恢复
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
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.

重命名sys用户引起数据库启动报ORA-01092 ORA-00600 kokasgi1错误
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.