Oracle Study之--Oracle 11gR2构建RAC之hosts文件故障

Oracle Study之--Oracle 11gR2构建RAC之hosts文件故障

系统环境：RedHat EL55

Oracle：    Oracle 11gR2 +GI

     在安装GI，运行root.sh script时，其中一个node出现以下错误：

[root@node2 ctssd]# /u01/11.2.0/grid/root.sh

Running Oracle 11g root.sh script...
The following environment variables are set as:
    ORACLE_OWNER= grid
    ORACLE_HOME=  /u01/11.2.0/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]: 
The file "dbhome" already exists in /usr/local/bin.  Overwrite it? (y/n) 
[n]: y
   Copying dbhome to /usr/local/bin ...
The file "oraenv" already exists in /usr/local/bin.  Overwrite it? (y/n) 
[n]: y
   Copying oraenv to /usr/local/bin ...
The file "coraenv" already exists in /usr/local/bin.  Overwrite it? (y/n) 
[n]: y
   Copying coraenv to /usr/local/bin ...

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.sh script.
Now product-specific root actions will be performed.
2016-03-16 16:18:11: Parsing the host name
2016-03-16 16:18:11: Checking for super user privileges
2016-03-16 16:18:11: User has super user privileges
Using configuration parameter file: /u01/11.2.0/grid/crs/install/crsconfig_params
LOCAL ADD MODE 
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
Adding daemon to inittab
CRS-4123: Oracle High Availability Services has been started.
ohasd is starting
CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node node1, number 1, and is terminating
An active cluster was found during exclusive startup, restarting to join the cluster
CRS-2672: Attempting to start 'ora.mdnsd' on 'node2'
CRS-2676: Start of 'ora.mdnsd' on 'node2' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'node2'
CRS-2676: Start of 'ora.gipcd' on 'node2' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'node2'
CRS-2676: Start of 'ora.gpnpd' on 'node2' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'node2'
CRS-2676: Start of 'ora.cssdmonitor' on 'node2' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'node2'
CRS-2672: Attempting to start 'ora.diskmon' on 'node2'
CRS-2676: Start of 'ora.diskmon' on 'node2' succeeded
CRS-2676: Start of 'ora.cssd' on 'node2' succeeded
CRS-2672: Attempting to start 'ora.ctssd' on 'node2'

Failure with signal 2 from command: /u01/11.2.0/grid/bin/crsctl start resource ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE
Start of resource "ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE" failed
Failed to start CTSS
Failed to start Oracle Clusterware stack
Oracle root script execution aborted!

-----  启动ctssd 进程失败 ！

经检查发现，在node2的hosts文件出现以下错误：

[oracle@node2 ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               node1 localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
192.168.3.101   node1
192.168.3.111   node1-vip
10.10.10.1      node1-priv

192.168.3.102   node2
192.168.3.112   node2-vip
10.10.10.2      node2-priv

192.168.3.12    rac-scan

------- 127.0.0.1 被解析成另一个node的主机名（node1）

改为：
127.0.0.1        localhost.localdomain localhost

重新运行root.sh脚本后成功！

[root@node2 install]# crsctl check crs

CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online

[root@node2 install]# crs_stat -t

Name           Type           Target    State     Host        
------------------------------------------------------------
ora....N1.lsnr ora....er.type ONLINE    ONLINE    node1       
ora....VOTE.dg ora....up.type ONLINE    ONLINE    node1       
ora.asm        ora.asm.type   ONLINE    ONLINE    node1       
ora.eons       ora.eons.type  ONLINE    ONLINE    node1       
ora.gsd        ora.gsd.type   OFFLINE   OFFLINE               
ora....network ora....rk.type ONLINE    ONLINE    node1       
ora....SM1.asm application    ONLINE    ONLINE    node1       
ora.node1.gsd  application    OFFLINE   OFFLINE               
ora.node1.ons  application    ONLINE    ONLINE    node1       
ora.node1.vip  ora....t1.type ONLINE    ONLINE    node1       
ora....SM2.asm application    ONLINE    ONLINE    node2       
ora.node2.gsd  application    OFFLINE   OFFLINE               
ora.node2.ons  application    ONLINE    ONLINE    node2       
ora.node2.vip  ora....t1.type ONLINE    ONLINE    node2       
ora.oc4j       ora.oc4j.type  OFFLINE   OFFLINE               
ora.ons        ora.ons.type   ONLINE    ONLINE    node1       
ora....ry.acfs ora....fs.type ONLINE    ONLINE    node1       
ora.scan1.vip  ora....ip.type ONLINE    ONLINE    node1