12.04.2017 12:30, Alessandro Briosi wrote:
> I'd like the cluster to make the 4th host not partecipate to the quorum.
That's strange setup. I don't think it's really supported. But you can try to
set it manually in
cluster config:
nodelist {
node {
ring0_addr: x.x
Il 11/04/2017 21:51, Jeff Palmer ha scritto:
> By default, in a 4 node cluster, 3 members would need to agree for quorum,
> not 2. In your example, if 2 hosts split from the other 2 hosts, neither
> side will have quorum. No split brain in that scenario.
>
> Think of quorum as a 'majority wins' v
On 12/04/2017 2:39 AM, Dietmar Maurer wrote:
That is not really necessary, because we use quorum (majority decides).
Cluster switch to read only mode I no partition has quorum, so
there is no danger.
so for a 4 node cluster would quorum be 3 nodes?
--
Lindsay Mathieson
___
By default, in a 4 node cluster, 3 members would need to agree for quorum,
not 2. In your example, if 2 hosts split from the other 2 hosts, neither
side will have quorum. No split brain in that scenario.
Think of quorum as a 'majority wins' vote. If the vote is a tie, there is
no winner.
On Apr
> Should the cluster always be composed by an odd number of hosts?
That is not really necessary, because we use quorum (majority decides).
Cluster switch to read only mode I no partition has quorum, so
there is no danger.
> I'm not using HA so if I move some VM from one host to the other I'm
> aw
Hi all,
I have a question about cluster quorum (proxmox 4).
I currently have a 3 host cluster with shared storage (gluster).
I have an old machine which I could use as a backup/service in case of
some host failure, though adding this server to the cluster would make
the cluter composed of 4 hosts
