操作系统重启时间异常导致Oracle数据库ORA-00600: 内部错误代码, 参数: [2252], [2888], [636089480], [2820]

该报错信息解释为数据库正在启动或者数据库关闭状态 

[oracle@alllinux ~]$ oerr ora 01033
01033, 00000, "ORACLE initialization or shutdown in progress"
// *Cause: An attempt was made to log on while Oracle is being started up
//         or shutdown.
// *Action: Wait a few minutes. Then retry the operation.

【问题处理】

根据无法连接数据库，建议Telnet数据库看看数据库连接是否正常，结果为Telnet验证正常，监听无问题；

登录数据库查看数据库是否异常，查看open_mode状态为mount的状态，尝试使用alter database open，尝试打开数据库，报错信息为：

ORA-00600: ??????, ??: [2252], [2888], [636089479], [2820], [959676416], [], [], [], [], [], [], []

查看数据库错误日志：

Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\hisdb\hisdb\trace\hisdb_ora_3456.trc:
ORA-00600: ??????, ??: [2252], [2888], [636089479], [2820], [959676416], [], [], [], [], [], [], []
ORA-600 signalled during: alter database open...
Fri Jan 01 00:19:10 2010
Sweep [inc][126516]: completed
Sweep [inc2][126516]: completed
Fri Jan 01 00:20:06 2010

根据00600报错在MOS查询，建议查看操作系统时间，查看操作系统时间与当前时间相差很大，调整操作系统时间后正常启动。