大家好：近期有一数据库总是alert日志报错，全天不间断的报这个同样的错误。但是也不影响使用，找不到问题在哪里,麻烦各位帮忙看看，不胜感激：
环境：win2003+oracle 10g，数据库未开归档，没有做rman备份，也没做热冷备等，只有每天凌晨一个exp导出备份。OracleOraDb10g_home1iSQL*Plus禁用，OracleJobSchedulerTIKETDB禁用
alert日志：
Completed: ALTER database backup controlfile to 'D:\ORACLE\PRODUCT\10.2.0\ADMIN\TIKETDB\UDUMP\is_oractl00.bak'
Thu Sep 01 08:04:45 2011
alter database backup controlfile to trace
Completed: alter database backup controlfile to trace
Thu Sep 01 08:04:45 2011
ALTER tablespace "SYSTEM" begin backup
ORA-1123 signalled during: ALTER tablespace "SYSTEM" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "UNDOTBS1" begin backup
ORA-1123 signalled during: ALTER tablespace "UNDOTBS1" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "SYSAUX" begin backup
ORA-1123 signalled during: ALTER tablespace "SYSAUX" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "USERS" begin backup
ORA-1123 signalled during: ALTER tablespace "USERS" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "TIKETDATA" begin backup
ORA-1123 signalled during: ALTER tablespace "TIKETDATA" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "PERFSTAT" begin backup
ORA-1123 signalled during: ALTER tablespace "PERFSTAT" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "SPOT" begin backup
ORA-1123 signalled during: ALTER tablespace "SPOT" begin backup...
Thu Sep 01 08:04:45 2011
ALTER tablespace "MONITOR" begin backup
ORA-1123 signalled during: ALTER tablespace "MONITOR" begin backup...
[ 本帖最后由 chunling0922 于 2011-9-1 09:28 编辑 ]
