双机mount数据库出现ORA-00600[kccsbck_first]

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标题:双机mount数据库出现ORA-00600[kccsbck_first]

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

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

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双机mount数据库出现ORA-00600[kccsbck_first]》有 1 条评论

  1. 惜分飞 说:
    ERROR:              
      Format: ORA-600 [kccsbck_first] [a] [b]
     
    VERSIONS:           
      versions 8.1.5 to 10.2
     
    DESCRIPTION:
    
      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.
    
      We therefore abort the mount attempt and log this error.
     
    ARGUMENTS:          
      Arg [a] thread number which has database mounted
      Arg [b] mount id of the thread
     
    FUNCTIONALITY:      
      CONTROL FILE COMPONENT
    

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