[Pacemaker] Trouble getting two node cluster to failover when network lost

[Aaron Wilson]

Thanks!


On Thu, Mar 20, 2014 at 12:29 AM, Jan Friesse <jfriesse at redhat.com> wrote:

> Aaron Wilson napsal(a):
> > Stefan, thanks for the reply.
> >
> > Having two nics is not for redundancy in my case. Resources on the
> primary
> > server are being accessed from both subnets at the same time. The
> secondary
> > server is  to be a failover if the server goes down or if any of the
> > Ethernet ports become disconnected for any reason.  I read through the
> > documentation and I am still not sure of the relationship between the
> > Corosync hostnames / interfaces and Pacemaker resources.  Could corosync
> be
> > configured to detect failure and start failover of a node using rrp or
> does
> > the resource need to be monitored by Pacemaker in order to get moved form
> > primary to secondary server?
> >
>
> Corosync itself doesn't take any visible action when one of rings failed
> (it just keeps sending messages via another ring). RRP is there only for
> redundancy and it's intended to be invisible for corosync clients
> (Pacemaker included). Everything resource management related is
> Pacemaker job.
>
> > There is actually a third nic on the servers which could be used only for
> > cluster communication if that works better.
> >
> >
> > Thanks again for your input. I will do some more reading as well.
> >
> > - Aaron
> >
> >
> >
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> >
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> >
>
>
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-- 
Aaron Wilson | IT Manager


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