又见Oracle BUG:Rman备份的alert错误提示

又见Oracle BUG:Rman备份的alert错误提示

现象：

在执行数据库备份时，alert日志提示存在错误信息，并给出了一个详细错误信息的trc文件。

alert.log

<<====

Tue May 7 10:23:19 2013

Errors in file /opt/oracle/admin/MMS/udump/MMS_ora_9140.trc:

Tue May 7 10:23:19 2013

Errors in file /opt/oracle/admin/MMS/udump/MMS_ora_9140.trc:

Tue May 7 10:23:19 2013

Errors in file /opt/oracle/admin/MMS/udump/MMS_ora_9140.trc:

<<====

但trc文件没有异常信息：

[oracle@MMSDB admin]$ more /opt/oracle/admin/MMS/udump/MMS_ora_9140.trc

/opt/oracle/admin/MMS/udump/MMS_ora_9140.trc

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production

With the Partitioning, OLAP and Data Mining options

ORACLE_HOME = /opt/oracle/product/10.2.0/db_1

System name: Linux

Node name: MMSDBZ

Release: 2.6.18-194.el5

Version: #1 SMP Tue Mar 16 21:52:39 EDT 2010

Machine: x86_64

Instance name: MMS

Redo thread mounted by this instance: 1

Oracle process number: 86

Unix process pid: 9140, image:
oracleMMS@MMSDBZ

*** 2013-05-07 10:23:19.906

*** ACTION NAME:(0000089 STARTED16) 2013-05-07 10:23:19.873

*** MODULE NAME:(backup full datafile) 2013-05-07 10:23:19.873

*** SERVICE NAME:(MMS) 2013-05-07 10:23:19.873

*** SESSION ID:(891.56220) 2013-05-07 10:23:19.873

*** ACTION NAME:(0000093 STARTED111) 2013-05-07 10:23:24.597

[oracle@MMSDB admin]$

分析：

1.确认alert错误提示发生在执行备份时；

MMS_ora_9140.trc：

*** MODULE NAME:(backup full datafile) 2013-05-07 10:23:19.873

2.trc文件是否被截断？

3.是否是Oracle本身存在BUG。

对于1，查看了备份脚本和rman日志，确认备份脚本设置正确，无异常rman日志。排除1

对于2，查看了max_dump_file_size参数设置：

SQL> show parameter max_dump_file_size

NAME TYPE VALUE

------------------------------------ -------------------------------- ------------------------------

max_dump_file_size string UNLIMITED <===设置没问题

查看操作系统空间也是有的。

对于3，在Metalink查找，发现有BUG存在。

Trace File Created when RMAN issues the Controlfile Autobackup [ID 335731.1]

Applied to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 to 10.2.0.1 [Release 10.1 to 10.2] <====我们的DB版本为10.2.0.1

Information in this document applies to any platform.

***Checked for relevance on 03-Apr-2013***

Symptoms:

Error in Alert.log on controlfile autobackup and trace file created with RMAN backups.

Issue verified by alert.log showing error:

Errors in file /usr/oracle/product/admin/dbtest/udump/dbtest_ora_8477.trc:

Control autobackup written to DISK device

handle '/orabackup/backup/prod/c-959859059-20050906-01'

And trace file created with:

/usr/oracle/product/admin/dbtest/udump/dbtest_ora_8477.trc

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, OLAP and Data Mining options

ORACLE_HOME = /usr/oracle/product/10.2

System name: Linux

Node name: dbtest

Release: 2.6.9-11.ELsmp

Version: #1 SMP Fri May 20 18:26:27 EDT 2005

Machine: i686

Instance name: dbtest

Redo thread mounted by this instance: 1

Oracle process number: 26

Unix process pid: 8477, image: oracle@dbtest (TNS V1-V3)

*** 2005-09-06 11:22:02.425

*** ACTION NAME:(0000064 STARTED111) 2005-09-06 11:22:02.403

*** MODULE NAME:(backup full datafile) 2005-09-06 11:22:02.403

*** SERVICE NAME:(SYS$USERS) 2005-09-06 11:22:02.403

*** SESSION ID:(538.56240) 2005-09-06 11:22:02.403

*** 2005-09-06 11:27:00.173

*** ACTION NAME:(0000670 STARTED111) 2005-09-06 11:27:00.173

*** MODULE NAME:(backup archivelog) 2005-09-06 11:27:00.173

Cause:

Bug 4596065. Development determined these empty trace files are created upon controlfile autobackup when flash recovery area is enabled.

Solution:

To implement the solution, please execute the following steps:

1. Ignore the trace files until patch can be applied.

10.2.0.2 Patch Set - List of Bug Fixes by Problem Type [ID 358749.1] <===没有one-off patch,该BUG在10.0.2.2中被修复

解决方法：

忽略该错误提示，或者升级数据库到10.2.0.2及以上。