本篇文章为大家展示了Oracle 11g RAC重新添加节点的示例分析，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。
环境：
suse 11sp4
Oracle 11.2.0.4.180116 RAC
安装Oracle11g rac过程中，由于主机硬件原因，导致节点1操作系统需要重新安装，目前集群已经全部安装完成，尚未创建数据库。
详细操作过程如下：
grid@XXXXXrac2:~> olsnodes -s -t
XXXXXrac1 Inactive Unpinned
XXXXXrac2 Active Unpinned
grid@XXXXXrac2:~> crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.LISTENER.lsnr
ONLINE ONLINE XXXXXrac2
ora.DATA.dg
ONLINE ONLINE XXXXXrac2
ora.asm
ONLINE ONLINE XXXXXrac2 Started
ora.gsd
OFFLINE OFFLINE XXXXXrac2
ora.net1.network
ONLINE ONLINE XXXXXrac2
ora.ons
ONLINE ONLINE XXXXXrac2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE XXXXXrac2
ora.cvu
1 ONLINE ONLINE XXXXXrac2
ora.XXXXXrac1.vip
1 ONLINE INTERMEDIATE XXXXXrac2 FAILED OVER
ora.XXXXXrac2.vip
1 ONLINE ONLINE XXXXXrac2
ora.oc4j
1 ONLINE ONLINE XXXXXrac2
ora.scan1.vip
1 ONLINE ONLINE XXXXXrac2
--删除一节点：
/oracle/xxxx/grid/bin/crsctl delete node -n XXXXXrac1（二节点root执行）
XXXXXrac2:~ # /oracle/xxxx/grid/bin/crsctl delete node -n XXXXXrac1
CRS-4661: Node XXXXXrac1 successfully deleted.
XXXXXrac2:~ #
grid@XXXXXrac2:~> olsnodes -s -t
XXXXXrac2 Active Unpinned
--清除一节点VIP信息
XXXXXrac2:~ # /oracle/xxxx/grid/bin/srvctl stop vip -i XXXXXrac1 -f
XXXXXrac2:~ # /oracle/xxxx/grid/bin/srvctl remove vip -i XXXXXrac1 -f
二节点更新inventory信息
grid@XXXXXrac2:~> /oracle/xxxx/grid/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/oracle/xxxx/grid "CLUSTER_NODES=XXXXXrac2" CRS=TRUE -silent
Starting Oracle Universal Installer...
Checking swap space: must be greater than 500 MB. Actual 32767 MB Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /oracle/app/oraInventory
'UpdateNodeList' was successful.
oracle@XXXXXrac2:~> /oracle/app/oracle/product/11.2.0/db_1/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/oracle/app/oracle/product/11.2.0/db_1 "CLUSTER_NODES=XXXXXrac2"
Starting Oracle Universal Installer...
Checking swap space: must be greater than 500 MB. Actual 32767 MB Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /oracle/app/oraInventory
'UpdateNodeList' was successful.
检查整个删除过程
grid@XXXXXrac2:~> cluvfy stage -post nodedel -n XXXXXrac1 -verbose
Performing post-checks for node removal
Checking CRS integrity...
Clusterware version consistency passed
The Oracle Clusterware is healthy on node "XXXXXrac2"
CRS integrity check passed
Result:
Node removal check passed
Post-check for node removal was successful.
==========添加节点
主机安装操作系统。
配置集群安装基础环境
--配置ssh互信
grid、oracle 用户ssh互信配置
mkdir ~/.ssh
chmod 755 ~/.ssh
/usr/bin/ssh-keygen -t rsa
/usr/bin/ssh-keygen -t dsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
ssh XXXXXrac2 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
ssh XXXXXrac2 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
scp ~/.ssh/authorized_keys XXXXXrac2:~/.ssh
--添加grid
[export IGNORE_PREADDNODE_CHECKS=Y #可选]
grid@XXXXXrac2:~> /oracle/xxxx/grid/oui/bin/addNode.sh "CLUSTER_NEW_NODES={XXXXXrac1}" "CLUSTER_NEW_VIRTUAL_HOSTNAMES={XXXXXrac1-vip}"
Performing pre-checks for node addition
Checking node reachability...
Node reachability check passed from node "XXXXXrac2"
Checking user equivalence...
User equivalence check passed for user "grid"
......
Saving inventory on nodes (Monday, March 19, 2018 4:13:26 PM CST)
. 100% Done.
Save inventory complete
WARNING:A new inventory has been created on one or more nodes in this session. However, it has not yet been registered as the central inventory of this system.
To register the new inventory please run the script at '/oracle/app/oraInventory/orainstRoot.sh' with root privileges on nodes 'XXXXXrac1'.
If you do not register the inventory, you may not be able to update or patch the products you installed.
The following configuration scripts need to be executed as the "root" user in each new cluster node. Each script in the list below is followed by a list of nodes.
/oracle/app/oraInventory/orainstRoot.sh #On nodes XXXXXrac1
/oracle/xxxx/grid/root.sh #On nodes XXXXXrac1
To execute the configuration scripts:
1. Open a terminal window
2. Log in as "root"
3. Run the scripts in each cluster node
The Cluster Node Addition of /oracle/xxxx/grid was successful.
Please check '/tmp/silentInstall.log' for more details.
--节点一运行脚本
XXXXXrac1:~ # /oracle/app/oraInventory/orainstRoot.sh
Creating the Oracle inventory pointer file (/etc/oraInst.loc)
Changing permissions of /oracle/app/oraInventory.
Adding read,write permissions for group.
Removing read,write,execute permissions for world.
Changing groupname of /oracle/app/oraInventory to oinstall.
The execution of the script is complete.
XXXXXrac1:~ #
XXXXXrac1:~ #
XXXXXrac1:~ # /oracle/xxxx/grid/root.sh
Performing root user operation for Oracle 11g
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /oracle/xxxx/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]:
Copying dbhome to /usr/local/bin ...
Copying oraenv to /usr/local/bin ...
Copying coraenv to /usr/local/bin ...
Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
Using configuration parameter file: /oracle/xxxx/grid/crs/install/crsconfig_params
Creating trace directory
User ignored Prerequisites during installation
Installing Trace File Analyzer
OLR initialization - successful
Adding Clusterware entries to /etc/inittab
CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node XXXXXrac2, number 2, and is terminating
An active cluster was found during exclusive startup, restarting to join the cluster
clscfg: EXISTING configuration version 5 detected.
clscfg: version 5 is 11g Release 2.
Successfully accumulated necessary OCR keys.
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
Preparing packages for installation...
cvuqdisk-1.0.9-1
Configure Oracle Grid Infrastructure for a Cluster ... succeeded
--检查grid是否添加成功
检查是否添加成功
grid@XXXXXrac2:~> cluvfy stage -post nodeadd -n XXXXXrac1
Performing post-checks for node addition
Checking node reachability...
Node reachability check passed from node "XXXXXrac2"
Checking user equivalence...
User equivalence check passed for user "grid"
....
--添加rdbms
oracle@XXXXXrac2:~> /oracle/app/oracle/product/11.2.0/db_1/oui/bin/addNode.sh "CLUSTER_NEW_NODES={XXXXXrac1}"
Performing pre-checks for node addition
Checking node reachability...
Node reachability check passed from node "XXXXXrac2"
Checking user equivalence...
User equivalence check passed for user "oracle"
WARNING:
Node "XXXXXrac1" already appears to be part of cluster
Pre-check for node addition was successful.
Starting Oracle Universal Installer...
Checking swap space: must be greater than 500 MB. Actual 32767 MB Passed
Oracle Universal Installer, Version 11.2.0.4.0 Production
Copyright (C) 1999, 2013, Oracle. All rights reserved.
Performing tests to see whether nodes XXXXXrac1 are available
............................................................... 100% Done.
.
-----------------------------------------------------------------------------
Cluster Node Addition Summary
Global Settings
Source: /oracle/app/oracle/product/11.2.0/db_1
New Nodes
Space Requirements
New Nodes
......
WARNING:
The following configuration scripts need to be executed as the "root" user in each new cluster node. Each script in the list below is followed by a list of nodes.
/oracle/app/oracle/product/11.2.0/db_1/root.sh #On nodes XXXXXrac1
To execute the configuration scripts:
1. Open a terminal window
2. Log in as "root"
3. Run the scripts in each cluster node
The Cluster Node Addition of /oracle/app/oracle/product/11.2.0/db_1 was successful.
Please check '/tmp/silentInstall.log' for more details.
切换到root后执行root脚本。
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