[PVE-User] PVE Cluster and /etc/hosts.conf

lemonnierk at ulrar.net lemonnierk at ulrar.net
Mon Sep 18 23:23:34 CEST 2017


Well if it works, sure. I know my nodes can't have corosync use eth0, so
I have to add the ring0 paramter to force that to use the local network,
but that's might not be a problem for you.

Just saying don't be surprised when you see your VM migration use your
public interface instead of the local ones :)

On Mon, Sep 18, 2017 at 06:21:46PM -0300, Gilberto Nunes wrote:
> Oh I see....
> 
> 
> But that's ok if I continue use the /etc/hosts.conf as I pointed before.
> right?
> 
> 
> 2017-09-18 18:12 GMT-03:00 <lemonnierk at ulrar.net>:
> 
> > Unfortunatly proxmox doesn't really use that for everything, it uses the
> > machines hostnames and you can't do anything about it.
> >
> > If you do something like pvecm add pve01 -ring0addr 10.1.1.XX you can
> > force corosync to use your local network, but if your hostnames resolve
> > to public IPs, VM migration and stuff like that will use that anyway.
> >
> > It would be great to have an option to make proxmox use something else
> > than the hostname, but as far as I know there is no real way around it
> > for now.
> >
> > On Mon, Sep 18, 2017 at 05:34:47PM -0300, Gilberto Nunes wrote:
> > > Hi guys...
> > >
> > > I always do, as good practices, adjust the /etc/hosts.conf, in order to
> > > resolve the internal IP to the machine name, when creating a cluster.
> > > So, I puted this in /etc/hosts.conf in each node:
> > >
> > > 127.0.0.1   localhost
> > > 10.1.1.10 pve01 pvelocalhost
> > > 10.1.1.20 pve02
> > > 10.1.1.30 pve03
> > >
> > > just altering the pvelocalhost according to the node...
> > >
> > > Now, when I add the node to the cluster, I refer to the name of that
> > > "primary" node, such this:
> > >
> > > pvecm add pve01
> > >
> > > Is this correct???
> > >
> > > P.S.: I just acted like this, because I believe that to make a private
> > > network between the servers, do the cluster more reliable than make all
> > > traffic from clusters node concurrer with LAN traffic...
> > >
> > > Thanks anyway
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> >
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