On 11/06/2013 09:44 PM, Jason Harley wrote:
> Hello —
>
> I have a four node Corosync (2.3.0-1ubuntu4) cluster configured and happy.
> However, I’d like to be able to allow the cluster to degrade to a single node
> in an (extreme) failure state — but still require (at least) two nodes to
> establish the cluster. Using qdisc is not an option in my environment, so
> I’m curious if I can achieve this using new features in ‘Needle’ like
> ‘last_man_standing’ and ‘auto_tie_breaker’.
>
> This is the ‘quorum’ block from my corosync.conf:
>
>> quorum {
>> provider: corosync_votequorum
>> expected_votes: 4
>> last_man_standing: 1
>> last_man_standing_window: 10000
>> auto_tie_breaker: 1
>> }
>
>
> Is this as simple as telling votequorum that I have a two node cluster
> (‘two_node: 1’) and enabling ‘allow_downscale’?
We should really change the man page to mark allow_downscale as
unsupported. It's only 90% implemented before people will shot
themselves in the foot.
Chrissie can you please take care of it?
Fabio
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