[Pacemaker] OFFLINE node after cluster upgrade

[Andrew Beekhof]

On Sat, Feb 25, 2012 at 8:28 AM, ruslan usifov <ruslan.usifov at gmail.com> wrote:
> I solve this problem!
>
>
> On one node in log i found follow error message.
>
> slv009 ....   peer is not p art of our cluster
>
> So i stop pacemaker in that host (i use v1 for pacemaker):
>
> /etc/pacemaker stop
> /etc/corosync stop
>
>
> Then remove all cib info from /var/lib/heatbeat/crm and cleanup
> /var/lib/pengine dir. thean restart clsuer on that node. And vuala  all
> begin working as expected.
>
>
> But i still have question why this happens??? Why nodes begin think that
> other nodes are not the part of cluster???

Are you specifying a node id in corosync.conf?
If that changed, it might confuse the other node.