Note that with 6 monitors, quorum requires 4. So if only 3 are running, the system cannot work. With one old removed there would be 5 possible, then with quorum of 3. Best regards, Håkan On Tue, 10 Mar 2020, Paul Emmerich wrote: > On Tue, Mar 10, 2020 at 8:18 AM Yoann Moulin <yoann.moulin(a)epfl.ch> wrote: >> I have added 3 new monitors on 3 VMs and I'd like to stop the 3 old monitors daemon. But I soon as I stop the 3rd old monitor, the cluster stuck >> because the election of a new monitor fails. > > By "stop" you mean "stop and then immediately remove before stopping > the next one"? Otherwise that's the problem. > > -- > Paul Emmerich > > Looking for help with your Ceph cluster? Contact us at https://croit.io > > croit GmbH > Freseniusstr. 31h > 81247 München > www.croit.io > Tel: +49 89 1896585 90 > >> >> The 3 old monitors are in 14.2.4-1xenial >> The 3 new monitors are in 14.2.7-1bionic >> >>> 2020-03-09 16:06:00.167 7fc4a3138700 1 mon.icvm0017(a)3(peon).paxos(paxos active c 20918592..20919120) lease_timeout -- calling new election >>> 2020-03-09 16:06:02.143 7fc49f931700 1 mon.icvm0017@3(probing) e4 handle_auth_request failed to assign global_id >> >> Did I miss something? >> >> In attachment : some logs and ceph.conf >> >> Thanks for your help. >> >> Best, >> >> -- >> Yoann Moulin >> EPFL IC-IT >> >> _______________________________________________ >> ceph-users mailing list -- ceph-users(a)ceph.io >> To unsubscribe send an email to ceph-users-leave(a)ceph.io > _______________________________________________ > ceph-users mailing list -- ceph-users(a)ceph.io > To unsubscribe send an email to ceph-users-leave(a)ceph.io