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最近发表
- .wstop扩展名勒索数据库恢复
- Oracle Recovery Tools工具一键解决ORA-00376 ORA-01110故障(文件offline)
- OGG-02771 Input trail file format RELEASE 19.1 is different from previous trail file form at RELEASE 11.2.
- OGG-02246 Source redo compatibility level 19.0.0 requires trail FORMAT 12.2 or higher
- GoldenGate 19安装和打patch
- dd破坏asm磁盘头恢复
- 删除asmlib磁盘导致磁盘组故障恢复
- Kylin Linux 安装19c
- ORA-600 krse_arc_complete.4
- Oracle 19c 202410补丁(RUs+OJVM)
- ntfs MFT损坏(ntfs文件系统故障)导致oracle异常恢复
- .mkp扩展名oracle数据文件加密恢复
- 清空redo,导致ORA-27048: skgfifi: file header information is invalid
- A_H_README_TO_RECOVER勒索恢复
- 通过alert日志分析客户自行对一个数据库恢复的来龙去脉和点评
- ORA-12514: TNS: 监听进程不能解析在连接描述符中给出的SERVICE_NAME
- ORA-01092 ORA-00604 ORA-01558故障处理
- ORA-65088: database open should be retried
- Oracle 19c异常恢复—ORA-01209/ORA-65088
- ORA-600 16703故障再现
标签归档:ORA-600[kccsbck_first]
控制文件异常导致ORA-00600[kccsbck_first]
今天接到一个朋友求救他们的his系统数据库不能访问,情况比较紧急,让我帮忙处理.登录数据库得到信息如下:
操作系统:windows 2003 数据库:8.1.7 容灾方案:双机+emc存储镜像 备份:数据库无任何备份 启动到mount报错类此: ORA-00600: internal error code, arguments: [kccsbck_first], [1], [4141358753], [], [], [], [], []
这个问题在上周的数据库恢复中遇到过一次,他们也是因为双机的案例,当时的情况见:双机mount数据库出现ORA-00600[kccsbck_first],有了上次的思维,我开始也怀疑是客户的双机的问题,但是客户说双机在半年前就关闭了,没有启动过;因为我对win的双机不太熟悉,怕他们双机软自动启动系统然后接管oracle从而导致这个问题,然后让客户检查另一台机器,确定没有启动和接管oracle 服务.
然后查询MOS发现win上面的特殊之处:是控制文件corruption导致故障(不过dbv检查不出来),而且三个控制文件有同样的问题
MOS记录如下(不过8.1.7也存在同样问题) [ID 291684.1]
Applies to: Oracle Server - Enterprise Edition - Version: 9.0.1.5 and later [Release: 9.0.1 and later ] Information in this document applies to any platform. ***Checked for relevance on 09-APR-2012*** Symptoms Alter database mount exclusive results in ORA-00600: internal error code, arguments: [kccsbck_first], [1], [2141358753], [], [], [], [], [] The description of the error is: 'We receive this error because we are attempting to be the first thread/instance to mount the database and cannot because it appears that at least one other thread has mounted the database already'. However in this case the database was a standalone database on Windows. It had only one oracle service running. The operating system was rebooted, the oracle service was deleted and a new service created. Even then the error persisted. Cause There was some corruption present in the controlfile. Solution In this case the problem was resolved by: + Taking a backup of the old control file + Recreating the control file using the following document How to Recreate a Controlfile [Document 735106.1]
因为数据库不能mount,所以不能使用backup controlfile to trace;
因为是win系统,没有任何的控制文件备份,只能把控制文件拷贝到linux下面通过strings命令,自己编辑创建控制文件脚本(noresetlogs).执行脚本创建控制文件,recover database,应用redo文件恢复,然后resetlogs库,恢复成功(注意:8i中不需要另外增加临时文件)
双机mount数据库出现ORA-00600[kccsbck_first]
一朋友的数据库在做数据库恢复的时候,数据库不能启动到mount状态,检查发现
alert日志错误如下
Mon Aug 27 10:00:18 2012 ALTER DATABASE MOUNT Mon Aug 27 10:00:23 2012 Errors in file /oracle/admin/wf2009/udump/orcl_ora_7042.trc: ORA-00600: internal error code, arguments: [kccsbck_first], [1], [1208656276], [], [], [], [], [] Mon Aug 27 10:00:23 2012 ORA-600 signalled during: ALTER DATABASE MOUNT...
查询mos发现解释
The ORA-600 [kccsbck_first] error occurs when Oracle detects that another instance has this database already mounted. For some reason, Oracle already sees a thread with a heartbeat. This could be the expected behaviour if running OPS. In such a case the parallel_server parameter needs to be set. In cases where Parallel Server is not linked in, this is not the expected behaviour.
在非集群环境中,当该数据库已经在一个节点启动,然后另外一个节点再尝试启动数据库可能出现该错误.
检查环境发现是使用roseha的双机环境,当关闭当前节点的数据库时候,另外一个节点认为oracle down掉了,然后自动在该节点去尝试启动数据库,而当前操作节点去尝试mount数据库的时候发生该错误,因为该数据库的另外一个节点已经mount了.出现这样的情况,和朋友的存储资源的配置也有不合理之处,在接管资源之前,应该先分析和处理存储的挂载情况,而不是不卸载这边,另外一遍直接挂载(也就是存储两边都挂载)
解决办法
这个问题的本质就是因为ha的两边都启动了数据库导致,关闭一边的roseha或者关闭主机就可以了
在做数据库恢复的时候,尽量排查掉其他因素的影响,比如:rac在一个节点上操作,ha关闭双机软件等