Allow votequorum to degrade to a single node without qdisc?

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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’?

./JRH
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