(re-cc'ing list without log file) Did you change anything in the cluster aside from ubuntu's version? Were any upgrades performed? If so, from which version to which version and on which monitors? -Joao On 07/15/2014 03:18 AM, Richard Zheng wrote: > Thanks Joao. Not sure if the log contains any potential sensitive > information... So I didn't reply to the list. > > On Mon, Jul 14, 2014 at 3:14 PM, Joao Eduardo Luis > <joao.luis at inktank.com <mailto:joao.luis at inktank.com>> wrote: > > On 07/14/2014 11:51 PM, Richard Zheng wrote: > > Hi, > > We used to have 0.80.1 on Ubuntu 12.04. We recently upgraded to > 14.04. > However the mon process doesn't start while OSDs are ok. The > ceph-mon > log shows, > > 2014-07-14 12:04:17.034407 7fa86ddcb700 -1 > mon.storage1 at 0(electing).__elector(147) Shutting down because I > do not > support required monitor features: { > compat={},rocompat={},__incompat={} } > > Any suggestions? > > > Set 'debug mon = 10' and 'debug ms = 1' on the monitor, rerun the > monitor, have this happen again and drop the log somewhere we can > take a look at :) > > -Joao > > > -- > Joao Eduardo Luis > Software Engineer | http://inktank.com | http://ceph.com > > -- Joao Eduardo Luis Software Engineer | http://inktank.com | http://ceph.com