[Pacemaker] How pacemaker handle split brain

[Andrew Beekhof]

On Wed, Dec 23, 2009 at 6:15 PM, hj lee <kerdosa at gmail.com> wrote:
>
> On Wed, Dec 16, 2009 at 3:53 AM, Andrew Beekhof <andrew at beekhof.net> wrote:
>>
>> On Wed, Dec 16, 2009 at 2:24 AM, Javen Wu <wu.javen at gmail.com> wrote:
>>
>> As per the conversation on IRC, DC election has nothing to do with quorum.
>> But only the DC that also has quorum is able to fence the unseen nodes
>> and run resources.
>>
> In two-node cluster with no-quorum-policy=ignore and stonith-enabled=true
> (also assume stonith is configured correctly), if the cluster becomes
> divided into two by disconnecting network cable, then doesn't stonith try to
> fence each other?

Yes. But only one will win under normal circumstances.
You may also want to read: http://ourobengr.com/ha