源端为备库的场景下Duplicate失败问题

2023-05-23 16:54:41 浏览数 (2)

环境: Oracle 11.2.0.3 OEL 7.9 A -> B -> C 级联ADG环境:db11g -> db11gadg -> db11gcas

之前测试提到,从一级备库duplicate到二级备库会报错:

代码语言:javascript复制
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 05/14/2023 23:54:15
RMAN-05501: aborting duplication of target database
RMAN-05531: a mounted database cannot be duplicated while datafiles are fuzzy

客户确认是从一级备库duplicate到二级备库OK,查询文档:

  • RMAN Duplicate From Active Database Fails when Source Database is Standby and Patch 11715084 Applied (Doc ID 1522062.1)

原来又是一个bug,好在有已发布的补丁修复此问题。 为了避免更多杂七杂八的bug,我决定应用11.2.0.3版本最后的PSU(Patch Set Update);

根据MOS文档:

  • Assistant: Download Reference for Oracle Database/GI Update, Revision, PSU, SPU(CPU), Bundle Patches, Patchsets and Base Releases (Doc ID 2118136.2)

定位到 11.2.0.3最后一个PSU是:p20996944_112030_Linux-x86-64.zip

这个是包含了GI和DB的补丁,我这里单实例就只需要应用其中DB的,应用每一个补丁的具体步骤都是去参见对应的readme文件:README.html。

  • Patch 20996944 - Oracle Grid Infrastructure Patch Set Update 11.2.0.3.15 (Jul2015) (Includes Database PSU)

这里想多聊下关于readme,但凡是有经验的DBA,都知道打补丁要看对应的readme,而不是直接上去就操作,虽然打补丁流程类似,但也会有个别补丁之间存在差异,按readme指引操作才是最靠谱的。

This document is accurate at the time of release. For any changes and additional information regarding PSU 11.2.0.3.15, see these related documents that are available at My Oracle Support Document 2006070.1 Oracle Grid Infrastructure Patch Set Update 11.2.0.3.15 Known Issues This document includes the following sections: Section 1, "Patch Information" Section 2, "Patch Installation and Deinstallation" Section 3, "Known Issues" Section 4, "References" Section 5, "Manual Steps for Apply/Rollback Patch" Section 6, "Bugs Fixed by This Patch" Section 7, "Documentation Accessibility"

我们需要下载OPatch Utility,通过 6880880 搜索:

  • You must use the OPatch utility version 11.2.0.3.5 or later to apply this patch.

题外话,这里的utility啥意思? 我们知道utility software通常是指最基础的系统工具软件,而Opatch 这种软件用于打各种版本的PSU补丁,所以称之为Opatch utility就容易理解了。 另外值得一提的是,像SUV这种耳熟能详的汽车车型,其中的U也是Utility这个词哦(Sport Utility Vehicle),这样是不是一下子就记住了呢~

  • The OPatch utility will prompt for your OCM (Oracle Configuration Manager) response file when it is run. OCM response file is required and is not optional.

这个ocm响应文件在这个版本下是必须的,在新版本就不需要,这些注意事项实际上都需要readme来确认。

在readme中针对比如手工应用等章节是指向到具体的MOS文档进一步说明:

  • Readme - Patch Installation and Deinstallation For 11.2.0.3.x GI PSU (Doc ID 1494646.1)

说这些只是为了让大家在应用补丁时仔细去看对应的readme说明,目前我这实验环境是单实例,手工应用补丁即可,使用最简单的opatch apply。

嗯,在应用之前,再去duplicate尝试下,确定目前是有问题的。 将级联备库db11gcas对应的实例启动到nomount状态;然后执行脚本报错:

代码语言:javascript复制
sh dup_dg.sh 
...
RMAN-05531: a mounted database cannot be duplicated while datafiles are fuzzy

在db11gadg备库先应用PSU补丁,更新OPatch Utility版本然后应用补丁:

代码语言:javascript复制
[oracle@db11gadg media]$ $ORACLE_HOME/OPatch/opatch version
Invoking OPatch 11.2.0.1.7

OPatch Version: 11.2.0.1.7

OPatch succeeded.

需要更新OPatch Utility,下载最新的11.2.0.3.41 尝试? 记得太新的其实未必兼容,另外目前连接实验环境没有多少流量可用传输。 所以从实验环境的本地网盘上搜到,p6880880_112000_Linux-x86-64_11.2.0.3.12.zip。 也符合要求。

安装此版本更新后再次查询符合要求:

代码语言:javascript复制
[oracle@db11gadg dbhome_1]$ pwd
/u01/app/oracle/product/11.2.0/dbhome_1
[oracle@db11gadg dbhome_1]$ unzip /u01/media/p6880880_112000_Linux-x86-64_11.2.0.3.12.zip
[oracle@db11gadg dbhome_1]$ $ORACLE_HOME/OPatch/opatch version
OPatch Version: 11.2.0.3.12

OPatch succeeded.

解压补丁,应用DB补丁: 建立一个空文件夹,解压:

代码语言:javascript复制
[oracle@db11gadg media]$ mkdir tmp
[oracle@db11gadg media]$ unzip p20996944_112030_Linux-x86-64.zip -d ./tmp/

[oracle@db11gadg tmp]$ pwd
/u01/media/tmp
[oracle@db11gadg tmp]$ ls -lrth
total 220K
-rw-r--r--  1 oracle oinstall   21 Jan  9  2014 README.txt
-rw-r--r--  1 oracle oinstall    0 Jan  9  2014 atp_lfp
drwxr-xr-x  5 oracle oinstall   44 Jan  9  2014 17592127
drwxrwxr-x 17 oracle oinstall 4.0K Jun  9  2015 20760997
-rw-r--r--  1 oracle oinstall  450 Jun  9  2015 bundle.xml
-rw-rw-r--  1 oracle oinstall  63K Jul 14  2015 README.html
-rw-rw-r--  1 oracle oinstall 143K Jul 14  2015 PatchSearch.xml

关闭数据库,监听,应用补丁;

代码语言:javascript复制
SQL> shutdown immediate
[oracle@db11gadg 20760997]$ lsnrctl stop

[oracle@db11gadg 20760997]$ $ORACLE_HOME/OPatch/opatch apply

Email address/User Name: <--- 直接回车!
You have not provided an email address for notification of security issues.
Do you wish to remain uninformed of security issues ([Y]es, [N]o) [N]:  Y <--- Y表示 希望不了解安全问题,不然就一直让你输入邮箱..

Please shutdown Oracle instances running out of this ORACLE_HOME on the local system.
(Oracle Home = '/u01/app/oracle/product/11.2.0/dbhome_1')


Is the local system ready for patching? [y|n]
y  <--- y表示本地环境已经准备好应用补丁了!

...
Composite patch 20760997 successfully applied.
OPatch Session completed with warnings.
Log file location: /u01/app/oracle/product/11.2.0/dbhome_1/cfgtoollogs/opatch/opatch2023-05-22_15-17-55PM_1.log

OPatch completed with warnings.

应用完补丁查询:

代码语言:javascript复制
[oracle@db11gadg 20760997]$ $ORACLE_HOME/OPatch/opatch lsinventory
...
OPatch succeeded.

启动监听和数据库:

代码语言:javascript复制
$ lsnrctl start
SQL> startup

然后级联备库再次发起duplicate操作,不再报错了哈~

为了统一,接下来计划在主库、级联备库都应用11.2.0.3的PSU补丁。 这里先应用一个备库,就是为了验证这个问题是否能修复。

0 人点赞