On 07/24/2017 05:15 PM, Tomer Azran wrote: > I still don't understand why the qdevice concept doesn't help on this > situation. Since the master node is down, I would expect the quorum to > declare it as dead. > Why doesn't it happens?
That is not how quorum works. It just limits the decision-making to the quorate subset of the cluster. Still the unknown nodes are not sure to be down. That is why I suggested to have quorum-based watchdog-fencing with sbd. That would assure that within a certain time all nodes of the non-quorate part of the cluster are down. > > > > On Mon, Jul 24, 2017 at 4:15 PM +0300, "Dmitri Maziuk" > <dmitri.maz...@gmail.com <mailto:dmitri.maz...@gmail.com>> wrote: > > On 2017-07-24 07:51, Tomer Azran wrote: > > We don't have the ability to use it. > > Is that the only solution? > > No, but I'd recommend thinking about it first. Are you sure you will > care about your cluster working when your server room is on fire? 'Cause > unless you have halon suppression, your server room is a complete > write-off anyway. (Think water from sprinklers hitting rich chunky volts > in the servers.) > > Dima > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://lists.clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org > > > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://lists.clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org -- Klaus Wenninger Senior Software Engineer, EMEA ENG Openstack Infrastructure Red Hat kwenn...@redhat.com
_______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
