I'm running 3-node cluster with Ceph (it's Deis cluster, so Ceph daemons are containerized). There are 3 OSDs and 3 mons. After rebooting all nodes one by one all monitors are up, but only two OSDs of three are up. 'Down' OSD is really running but is never marked up/in. All three mons are reachable from inside the OSD container. I've run `log dump` for this OSD and found this line:
Aug 29 06:19:39 staging-coreos-1 sh[7393]: -99> 2015-08-29 06:18:51.855432 7f5902009700 3 osd.0 0 handle_osd_map epochs [1,90], i have 0, src has [1,90] Is it the reason why OSD cannot connect to the cluster? If yes, why could it happen? I haven't removed any data from /var/lib/ceph/osd. Is it possible to bring this OSD back to cluster without completely recreating it? Ceph version is: root@staging-coreos-1:/# ceph -v ceph version 0.94.2 (5fb85614ca8f354284c713a2f9c610860720bbf3)
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