[Pacemaker] spilit brain situation

Romi Verma romi3rdfeb at gmail.com
Fri Feb 6 04:49:04 EST 2009

On Fri, Feb 6, 2009 at 3:09 PM, Andrew Beekhof <beekhof at gmail.com> wrote:

> On Feb 6, 2009, at 10:29 AM, Romi Verma wrote:
>  > i want the partition without quorum to reset the nodes instead of
>> killing .
>> > is it possible.
>> define the difference between reset node and kill node?
>>  According to me  , killing a node means powering it off but reseting a
>> node means rebooting it.
> This is controlled with the  stonith-action option
>  but  dont you think in two nodes cluster if we get spilit brain situation
>> both node will try to stonith each other.
> which is why two node clusters are good for demonstrations and thats about
> it.
> there are some limited uses for them, but in general you need 3 nodes for a
> sane cluster

so do you mean two nodes cluster are not good for production environment
because both will try to  stonith each other in spilit brain??

one more question , why we need to configure stonith in two node cluster. we
can always set no-quorum policy to "suicide"  . As in both case whether we
set stonith or we set no-quorum-policy to suicide  , both node will reset.
 is there any extra benefit of  stonith over "no-quourm-policy=suicide"
which i am missing.

> .
> _______________________________________________
> Pacemaker mailing list
> Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clusterlabs.org/pipermail/pacemaker/attachments/20090206/905b719c/attachment-0001.html>

More information about the Pacemaker mailing list