I dont think my question was very clear. I am strictly NO for STONITH. STONITH is limited only for kvm or HP machines. That's the reason I don't want to use STONITH. What my question is can I use booth with nodes of a single cluster also (similar to qdevice)? So idea is to use booth arbitrator for cluster of clusters AS WELL AS for a single cluster.
On Tue, Jul 14, 2020 at 4:42 PM Jan Friesse <jfrie...@redhat.com> wrote: > Rohit, > > > Thanks Honja. That's helpful. > > Let's say I don't use qnetd, can I achieve same with booth arbitrator? > > That means to have two two-node clusters. Two-node cluster without > fencing is strictly no. > > > Booth arbitrator works for geo-clusters, can the same arbitrator be > reused > > for local clusters as well? > > I'm not sure that I understand question. Booth just gives ticket to > (maximally) one of booth-sites. > > > > Is it even possible technically? > > The question is, what you are trying to achieve. If geo-cluster then > stonith for sites + booth is probably best solution. If the cluster is > more like a stretch cluster, then qnetd + stonith is enough. > > And of course your idea (original one) should work too. > > Honza > > > > > > Regards, > > Rohit > > > > On Tue, Jul 14, 2020 at 3:32 PM Jan Friesse <jfrie...@redhat.com> wrote: > > > >> Rohit, > >> > >>> Hi Team, > >>> Can I execute corosync-qnetd and booth-arbitrator on the same VM in a > >>> different geo site? What's the recommendation? Will it have any > >> limitations > >>> in a production deployment? > >> > >> There is no technical limitation. Both qnetd and booth are very > >> lightweight and work just fine with high latency links. > >> > >> But I don't really have any real-life experiences with deployment where > >> both booth and qnetd are used. It should work, but I would recommend > >> proper testing - especially what happens when arbitrator node > disappears. > >> > >>> Due to my architecture limitation, I have only one arbitrator available > >>> which is on a 3rd site. To handle cluster split-brain errors, I am > >> thinking > >>> to use same arbitrator for local cluster as well. > >>> STONITH is not useful in my case as it is limited only to ILO and VIRT. > >> > >> Keep in mind that neither qdevice nor booth is "replacement" for > stonith. > >> > >> Regards, > >> Honza > >> > >>> > >>> [image: image.png] > >>> > >>> Thanks, > >>> Rohit > >>> > >>> > >>> > >>> _______________________________________________ > >>> Manage your subscription: > >>> https://lists.clusterlabs.org/mailman/listinfo/users > >>> > >>> ClusterLabs home: https://www.clusterlabs.org/ > >>> > >> > >> > > > >
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