Re: Adding Node to RAC Fails with SSH Equivalency on NxN Check

I would think you verified this, but you did verify the uid and gid are the same right?

On Tue, Apr 12, 2022 at 10:41 AM David Barbour <david.barbour1_at_gmail.com> wrote:

> Morning Listers,
>
> Oracle 19.11 RHEL 7.6
>
> We are switching servers and the new nodes are running RHEL 8.3.
>
> When attempting to add one of the new nodes to the existing RAC,
> gridSetup.sh errors out on passwordless ssh connectivity.
>
> I've verified I can ssh without a password from the command line between
> all 3 servers as both the oracle and grid users.
>
> The install log shows:
> Preparing to check passwordless SSH Connectivity between nodes: [node1,
> node3]
> Testing passwordless SSH connectivity between the selected nodes.
> OverallStatus of User Equivalence check using CVU is SUCCESSFUL
>
> Preparing to check passwordless SSH Connectivity between nodes: [node1,
> node2, node3]
> Testing passwordless SSH connectivity between the selected nodes.
> OverallStatus of User Equivalence check using CVU is SUCCESSFUL
>
> Verifying passwordless SSH connectivity setup on all the cluster nodes
> using cvu's NxN check
> Remote node(s) not configured for passwordless SSH connectivity :[node3]
>
> Any ideas here? What is the NxN check? selinux is set to permissive.
>
> /var/log/secure (on the new node) shows:
> Accepted password for grid from 192.168.194.133 port 35715 ssh2
>
> /var/log/secure on the installing node shows:
> Accepted publickey for grid from 192.168.194.134 port 39409 ssh2
>
> Scratching my head here. The known_hosts and authorized_keys files look
> good. Took out FQDN per some Oracle note. Have rebuilt these by hand
> adding RSA in addition to ECDSA but no joy.
>
>

-- 
Andrew W. Kerber

'If at first you dont succeed, dont take up skydiving.'

--
http://www.freelists.org/webpage/oracle-l