[Pacemaker] no-quorum-policy

[Andrew Beekhof]

On Feb 9, 2009, at 9:57 AM, Romi Verma wrote:

>
>
> On Mon, Feb 9, 2009 at 2:20 PM, Glory Smith <xx2glory at gmail.com>  
> wrote:
>
>
> On Sat, Feb 7, 2009 at 8:16 PM, Romi Verma <romi3rdfeb at gmail.com>  
> wrote:
> Hi all,
>
> I have one confusion .  pacemaker (configuration explained )  
> document  says that " if the cluster does not have quorum then the  
> cluster cannot start resources or fence other nodes."   i understand  
> that when no-quorum-policy is set to "stop"   then cluster will not  
> be able to start it's existing resources  and when it is set to   
> "freeze" cluster will not be able to add and start new resources.  
> but i dont know when it will not be able to "fence other nodes" .  i  
> guess it should be when   no-quorum-policy is set to  suicide.

when set to suicide, it will only shoot itself and any other nodes in  
its current partition - it wont try to shoot the nodes it can't see.
when set to "ignore" (or when it has quorum), it will shoot anyone it  
can't see
for any other value, it wont shoot anyone when it doesn't have quorum.

>
> As far as i know There is no "suicide"  no-quorum-policy. atleast  
> document you mentioned  does not talk about it . Please check it out  
> again and keep me posted . Thanks
>
> Suse 11 has Suicide  as no-quorum-policy  and you are right document  
> does not have information about it. i dont know the reason why.

Only so many hours in the day.

> Andrew can explain this.
>
> Andrew: please answer to following question also . many many Thanks.
>
>
> well if it is like this then in 2 nodes cluster,  when ever split  
> brain situation will happen then a node will never  be able to reset  
> other node as without quorum fencing can not happen.  only suicide  
> can happen that means a node will reset itself in absence of quorum.  
> am i right??
>
>
> Please let me know your view on this.
>
>
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