If you set up multiple monitors, which is best practice, you need a quorum to be established between your monitors for your cluster to operate. A single monitor that cannot reach his peers simply don't know if they are down or if it is isolated from them.
Similarly, a leader exists only in a quorum. On Wed, Jan 27, 2016 at 9:58 AM, Sándor Szombat <[email protected]> wrote: > Hello, > > I'm testing ceph with minimal config on our servers (I'm using ceph-deploy > tool). We have 3 monitor nodes with 6 OSD. The worst scenario when only 1 > monitor and 2 osd up. Unfortunatelly in this case I got just error when I > run for example ceph -s, I think it couldn't reach the cluster (I turned > down the leader monitor). How can I config ceph to work with only 1 > monitor? It is possible? I read this page > <http://docs.ceph.com/docs/hammer/rados/configuration/mon-config-ref/> > but this isn't clear exactly. > > Thanks for your help! > Sandor Szombat > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- ----------------------------------------------------------------------------------------- Adrien GILLARD +33 (0)6 29 06 16 31 [email protected]
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