数据库实例异常崩溃了,可恼

u2u

正在运行的数据突然崩溃了

现场如下:

alert.log
Thu Oct 28 16:40:52 2004
Thread 1 advanced to log sequence 73647
  Current log# 2 seq# 73647 mem# 0: /data/oracle/logdb/redologs/redolog02.dbf
  Current log# 2 seq# 73647 mem# 1: /data1/oracle/logdb/redologs/redolog05.dbf
Thu Oct 28 16:40:52 2004   
ARC1: Beginning to archive log# 1 seq# 73646
Thu Oct 28 16:41:18 2004   
PMON: terminating instance due to error 473
Instance terminated by PMON, pid = 20217


pmon.trc
*** 2004-10-28 16:41:18.690
error 473 detected in background process


cdump目录里生成了一个空的core_XXXX的目录

系统环境如下
linux ,内核2.4.18-18.7.xsmp
oracle 817


重启后一切正常,这样的情况半年来已经发生两次了,看上去好像是archive 进程的问题,不知道那位朋友可曾遇到类似情况?
先谢了!