On Feb 6, 2009, at 9:53 AM, Romi Verma wrote:
Thanks Dominic,
i have two questions now.
1) what does no-quorum-policy= suicide means then?? does it remove
the resource completely.
no, the node kills itself and any other node in the partition
this makes no sense in a 2 node cluster because both nodes will do this
2) why each node is thinking itsef as DC as Andrew said after spilit
brain election happens and one node is selected as DC.
no, i said after the split-brain is _repaired_ an election occurs.
clearly this can't happen during a split-brian because by definition
they can't communicate.
This is not happening in my case.
i dont have any stonith configured in my cluster . do i need stonith
to handle spilit brain situation.
On Fri, Feb 6, 2009 at 1:59 PM, Dominik Klein <d...@in-telegence.net>
wrote:
Romi Verma wrote:
> Thanks for fast reply ,
> Ok, Let me explain the situation. i have two nodes cluster . i
pulled out
> the network cable of one
> node which produced spilit brain situation. this time both nodes are
> thinking that other one is dead. each node is thinking itself as
DC and on
> each node cluster is up and running without quorum.
>
> i am new to openais/pacemaker so dont know much but according to
some
> documents it seems by default no-quorum-policy is to "stop" the
cluster. i
> have not specified any no-quorum-policy that's why i expect that
my cluster
> should stop if it looses quorum somehow.
The "stop" refers to the resources. policy=stop on a node with no
quorum
means: do not run any resources.
"ignore" would mean: run resources even though we don't have quorum
(like the old heartbeat behaviour would be)
"freeze" would mean: run and manage what you did run up to this point,
but don't aquire any other resources.
Regards
Dominik
> But in present spilit brain situation , on each node cluster is up
and
> running without quorum. could you please explain why this is
happening.
>
> Romi
>
>
> On Fri, Feb 6, 2009 at 12:52 PM, Andrew Beekhof
<beek...@gmail.com> wrote:
>
>> Well the no-quorum-policy option applies during the split and an
election
>> is held to determine the DC when the partitions reform.
>> Can you be more specific please?
>> On Feb 6, 2009, at 4:54 AM, Romi Verma wrote:
>>
>>
>>
>> hi all,
>>> how does openais + pacemaker (suse 11) cluster handles spilit
brain
>>> situation . can any one explain.
>>>
>>> Thanks,
>>> Romi.
>>>
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