源端为备库的场景下Duplicate失败问题
2023-05-22 15:47 AlfredZhao 阅读(207) 评论(0) 编辑 收藏 举报环境:
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:
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 (http://support.oracle.com/):
Document 854428.1 Patch Set Updates for Oracle Products
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:
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:
[oracle@db11gadg media]$ $ORACLE_HOME/OPatch/opatch version
Invoking OPatch 11.2.0.1.7
OPatch Version: 11.2.0.1.7
OPatch succeeded.
需要更新OPatch Utility,下载最新的11.2.0.3.41 尝试?
记得太新的其实未必兼容,另外目前连接实验环境没有多少流量可用传输。
所以从实验环境的本地网盘上搜到,p6880880_112000_Linux-x86-64_11.2.0.3.12.zip。
也符合要求。
安装此版本更新后再次查询符合要求:
[oracle@db11gadg dbhome_1]$ 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]$ $ORACLE_HOME/OPatch/opatch version
OPatch Version: 11.2.0.3.12
OPatch succeeded.
解压补丁,应用DB补丁:
建立一个空文件夹,解压:
[oracle@db11gadg media]$ 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;
SQL> shutdown immediate
[oracle@db11gadg 20760997]$ lsnrctl stop
[oracle@db11gadg 20760997]$ $ORACLE_HOME/OPatch/opatch apply
Email address/User Name: <--- 直接回车!
You have not provided an email address for notification of security issues.
Do you wish to remain uninformed of security issues ([Y]es, [N]o) [N]: Y <--- Y表示 希望不了解安全问题,不然就一直让你输入邮箱..
Please shutdown Oracle instances running out of this ORACLE_HOME on the local system.
(Oracle Home = '/u01/app/oracle/product/11.2.0/dbhome_1')
Is the local system ready for patching? [y|n]
y <--- y表示本地环境已经准备好应用补丁了!
...
Composite patch 20760997 successfully applied.
OPatch Session completed with warnings.
Log file location: /u01/app/oracle/product/11.2.0/dbhome_1/cfgtoollogs/opatch/opatch2023-05-22_15-17-55PM_1.log
OPatch completed with warnings.
应用完补丁查询:
[oracle@db11gadg 20760997]$ $ORACLE_HOME/OPatch/opatch lsinventory
...
OPatch succeeded.
启动监听和数据库:
$ 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。