Hello, Yes I've added two monitors but the error persist. In the error I see only the IP of the first mon, why not appears the second?
I had only one monitors before and running good because I have installed AIO. Thanks. 2016-07-07 17:22 GMT+02:00 Joao Eduardo Luis <[email protected]>: > On 07/07/2016 04:17 PM, Fran Barrera wrote: > >> Hi all, >> >> I have a cluster setup AIO with only one monitor and now I've created >> another monitor in other server following this doc >> http://docs.ceph.com/docs/master/rados/operations/add-or-rm-mons/ but my >> problem is if I stop the AIO monitor, the cluster stop working. It seems >> like the ceph is not updated with the new mon or something >> > > In the doc you quoted, one can read: > > "Due to the nature of Paxos, Ceph requires a majority of monitors running > to establish a quorum (thus establishing consensus). > > [...] > > For instance, on a 2 monitor deployment, no failures can be tolerated in > order to maintain a quorum; with 3 monitors, one failure can be tolerated; > [...]" > > And in a box beneath, you also see > > "Note: A majority of monitors in your cluster must be able to reach each > other in order to establish a quorum." > > > So, say you have 2 monitors and you need a majority of them to be up, > running, and able to communicate with each other in order to form quorum. > What's a majority of 2? How many failures can you tolerate? > > -Joao > > > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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