Hello Gregory, the logfile I produced has already debug mon = 20 set: [21:03:51] server1:~# grep "debug mon" /etc/ceph/ceph.conf debug mon = 20 It is clear that server1 is out of quorum, however how do we make it being part of the quorum again? I expected that the quorum finding process is triggered automatically after restarting the monitor, or is that incorrect? Best, Nico Gregory Farnum <gfarnum@xxxxxxxxxx> writes: > You'll need to change the config so that it's running "debug mon = 20" for > the log to be very useful here. It does say that it's dropping client > connections because it's been out of quorum for too long, which is the > correct behavior in general. I'd imagine that you've got clients trying to > connect to the new monitor instead of the ones already in the quorum and > not passing around correctly; this is all configurable. > > On Wed, Oct 4, 2017 at 4:09 AM Nico Schottelius < > nico.schottelius@xxxxxxxxxxx> wrote: > >> >> Good morning, >> >> we have recently upgraded our kraken cluster to luminous and since then >> noticed an odd behaviour: we cannot add a monitor anymore. >> >> As soon as we start a new monitor (server2), ceph -s and ceph -w start to >> hang. >> >> The situation became worse, since one of our staff stopped an existing >> monitor (server1), as restarting that monitor results in the same >> situation, ceph -s hangs until we stop the monitor again. >> >> We kept the monitor running for some minutes, but the situation never >> cleares up. >> >> The network does not have any firewall in between the nodes and there >> are no host firewalls. >> >> I have attached the output of the monitor on server1, running in >> foreground using >> >> root@server1:~# ceph-mon -i server1 --pid-file >> /var/lib/ceph/run/mon.server1.pid -c /etc/ceph/ceph.conf --cluster ceph >> --setuser ceph --setgroup ceph -d 2>&1 | tee cephmonlog >> >> Does anyone see any obvious problem in the attached log? >> >> Any input or hint would be appreciated! >> >> Best, >> >> Nico >> >> >> >> -- >> Modern, affordable, Swiss Virtual Machines. Visit www.datacenterlight.ch >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> -- Modern, affordable, Swiss Virtual Machines. Visit www.datacenterlight.ch _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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