Re: RAC, user equivalence

Mladen Gogala wrote:
> Does anybody know what is @#$%! "user equivalence"? I have 2 nodes,
> I have all the elements and here is what I get:
>
> [oracle_at_oracle20 cluvfy]$ ./runcluvfy.sh stage -pre crsinst -n
> oracle20,oracle21 -verbose
>
> Performing pre-checks for cluster services setup
>
> Checking node reachability...
>
> Check: Node reachability from node "oracle20"
> Destination Node Reachable?
> ------------------------------------ ------------------------
> oracle20 yes
> oracle21 yes
> Result: Node reachability check passed from node "oracle20".
>
>
> Checking user equivalence...
>
> Check: User equivalence for user "oracle"
> Node Name Comment
> ------------------------------------ ------------------------
> oracle21 failed
> oracle20 failed
> Result: User equivalence check failed for user "oracle".
>
> ERROR:
> User equivalence unavailable on all the nodes.
> Verification cannot proceed.
>
>
> Pre-check for cluster services setup was unsuccessful on all the
> nodes. [oracle_at_oracle20 cluvfy]$
>
>
> I can reach both nodes without a password:
> [oracle_at_oracle20 cluvfy]$ ssh oracle21
> Last login: Thu May 3 15:49:14 2007 from oracle20-priv
> [oracle_at_oracle21 ~]$ ssh oracle20
> Last login: Thu May 3 15:49:31 2007 from oracle21-priv
> [oracle_at_oracle20 ~]$ ssh oracle21-priv
> Last login: Thu May 3 16:09:38 2007 from oracle20
> [oracle_at_oracle21 ~]$ ssh oracle20-priv
> Last login: Thu May 3 16:09:42 2007 from oracle21
> [oracle_at_oracle20 ~]$
>
> WTF is "user equivalence"? The installation procedure for RAC is
> really, really foobar.

Google is your friend:
http://www.oracle.com/technology/pub/articles/smiley_rac10g_install.html or
http://www.oracle.com/technology/pub/articles/vallath-nodes.html or
http://www.databasejournal.com/features/oracle/article.php/3581481 or
probably many more.

HTH

-- 
Jeroen