Yes, this is the problem. 2016-07-07 17:34 GMT+02:00 Joao Eduardo Luis <j...@suse.de>:
> On 07/07/2016 04:31 PM, Fran Barrera wrote: > >> 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? >> > > The description you offered on the initial email appears to state the > following: > > - You initially had one monitor (let's call it A) > - You added a second monitor (let's call it B) > - Everything works while A and B are running > - Nothing works if you stop A > > Did I understand your problem correctly? > > -Joao > > >> 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 <j...@suse.de >> <mailto:j...@suse.de>>: >> >> >> 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 >> ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> >> >
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