Oracle-RAC等价性验证错误：Result: PRVF-4007 : User equivalence check failed for user "grid"

安装RAC做oracle集群件要求出现错误，错误信息如下：

[grid@rac1 grid]$ ./runcluvfy.sh stage -pre crsinst -n rac1,rac2 -fixup -verbose

Performing pre-checks for cluster services setup 

Checking node reachability...

Check: Node reachability from node "rac1"
  Destination Node                      Reachable?              
  ------------------------------------  ------------------------
  rac2                                  yes                     
  rac1                                  yes                     
Result: Node reachability check passed from node "rac1"


Checking user equivalence...

Check: User equivalence for user "grid"
  Node Name                             Comment                 
  ------------------------------------  ------------------------
  rac2                                  passed                  
  rac1                                  failed                  
Result: PRVF-4007 : User equivalence check failed for user "grid"

一开始的思路是rac1 ssh rac2，rac2 ssh rac1；验证通过后执行命令后还是报同样的错误，代码如下：

./runcluvfy.sh stage -pre crsinst -n rac1,rac2 -fixup -verbose

后来在论坛中发现一篇文章，里面提到，集群不仅要验证对方，同时也要验证自己：

[root@rac2 ~]# su - oracle
[oracle@rac2 ~]$ ssh rac2 date
The authenticity of host 'rac2 (127.0.0.1)' can't be established.
RSA key fingerprint is 00:38:d0:f8:99:20:fa:41:90:d6:9b:68:06:68:d8:15.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac2' (RSA) to the list of known hosts.
Fri Aug 17 12:49:01 CST 2018
[oracle@rac2 ~]$ ssh rac2priv date
The authenticity of host 'rac2priv (172.16.0.92)' can't be established.
RSA key fingerprint is 00:38:d0:f8:99:20:fa:41:90:d6:9b:68:06:68:d8:15.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac2priv,172.16.0.92' (RSA) to the list of known hosts.
Fri Aug 17 12:49:09 CST 2018
[oracle@rac2 ~]$ su - grid
Password: 
[grid@rac2 ~]$ ssh rac2 date
The authenticity of host 'rac2 (127.0.0.1)' can't be established.
RSA key fingerprint is 00:38:d0:f8:99:20:fa:41:90:d6:9b:68:06:68:d8:15.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac2' (RSA) to the list of known hosts.
grid@rac2's password: 
Permission denied, please try again.
grid@rac2's password: 
Fri Aug 17 12:49:33 CST 2018
[grid@rac2 ~]$ ssh rac2priv date
The authenticity of host 'rac2priv (172.16.0.92)' can't be established.
RSA key fingerprint is 00:38:d0:f8:99:20:fa:41:90:d6:9b:68:06:68:d8:15.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac2priv,172.16.0.92' (RSA) to the list of known hosts.
grid@rac2priv's password: 
Fri Aug 17 12:49:43 CST 2018

随后再执行命令就全部pass（通过）。

文章地址（不知道怎么插入超链接）：http://www.itpub.net/thread-1398968-1-1.html