ceph version 0.63 (054e96cf79e960894ef7e33a4d13635d3ad2a1b9)
 1: /usr/bin/ceph-mon() [0x591e7a]
 2: (()+0xfcb0) [0x7ff73ce8ecb0]
 3: (gsignal()+0x35) [0x7ff73ba64425]
 4: (abort()+0x17b) [0x7ff73ba67b8b]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7ff73c3b669d]
 6: (()+0xb5846) [0x7ff73c3b4846]
 7: (()+0xb5873) [0x7ff73c3b4873]
 8: (()+0xb596e) [0x7ff73c3b496e]
 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x1df) [0x649e2f]
 10: (Monitor::sync_timeout(entity_inst_t&)+0x9c8) [0x4b4f78]
 11: (Context::complete(int)+0xa) [0x4bfa2a]
 12: (SafeTimer::timer_thread()+0x425) [0x640a95]
 13: (SafeTimerThread::entry()+0xd) [0x6416cd]
 14: (()+0x7e9a) [0x7ff73ce86e9a]
 15: (clone()+0x6d) [0x7ff73bb21ccd]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- logging levels ---
   0/ 5 none
   0/ 1 lockdep
   0/ 1 context
   1/ 1 crush
   1/ 5 mds
   1/ 5 mds_balancer
   1/ 5 mds_locker
   1/ 5 mds_log
   1/ 5 mds_log_expire
   1/ 5 mds_migrator
   0/ 1 buffer
   0/ 1 timer
   0/ 1 filer
   0/ 1 striper
   0/ 1 objecter
   0/ 5 rados
   0/ 5 rbd
   0/ 5 journaler
   0/ 5 objectcacher
   0/ 5 client
   0/ 5 osd
   0/ 5 optracker
   0/ 5 objclass
   1/ 3 filestore
   1/ 3 journal
   0/ 5 ms
   1/ 5 mon
   0/10 monc
   0/ 5 paxos
   0/ 5 tp
   1/ 5 auth
   1/ 5 crypto
   1/ 1 finisher
   1/ 5 heartbeatmap
   1/ 5 perfcounter
   1/ 5 rgw
   1/ 5 hadoop
   1/ 5 javaclient
   1/ 5 asok
   1/ 1 throttle
  -2/-2 (syslog threshold)
  -1/-1 (stderr threshold)
  max_recent     10000
  max_new         1000
  log_file /var/log/ceph/ceph-mon.b.log
--- end dump of recent events ---
2013-06-08 21:30:27.239054 7f82faaef780  0 ceph version 0.63 (054e96cf79e960894ef7e33a4d13635d3ad2a1b9), process ceph-mon, pid 5791
2013-06-08 21:30:27.693065 7f82f6b90700 -1 asok(0x17bf000) AdminSocket: request 'mon_status' not defined
2013-06-08 21:30:28.521089 7f82faaef780 -1 obtain_monmap unable to find a monmap
2013-06-08 21:30:28.521191 7f82faaef780 -1 unable to obtain a monmap: (2) No such file or directory
2013-06-08 21:30:28.521279 7f82faaef780  0 mon.b does not exist in monmap, will attempt to join an existing cluster
2013-06-08 21:30:28.527784 7f82faaef780  1 mon.b@-1(probing) e0 preinit fsid 00000000-0000-0000-0000-000000000000
2013-06-08 21:30:28.527929 7f82faaef780 -1 mon.b@-1(probing) e0 error: cluster_uuid file exists with value 'b6a9b009-1343-4430-aa26-e8c1f7b7a41e', != our uuid 00000000-0000-0000-0000-000000000000
2013-06-08 21:37:10.895661 7f005b2a2780  0 ceph version 0.63 (054e96cf79e960894ef7e33a4d13635d3ad2a1b9), process ceph-mon, pid 1058
2013-06-08 21:37:19.437256 7f005b2a2780 -1 obtain_monmap unable to find a monmap
2013-06-08 21:37:19.437277 7f005b2a2780 -1 unable to obtain a monmap: (2) No such file or directory
2013-06-08 21:37:19.437358 7f005b2a2780  0 mon.b does not exist in monmap, will attempt to join an existing cluster
2013-06-08 21:37:19.452691 7f005b2a2780  1 mon.b@-1(probing) e0 preinit fsid 00000000-0000-0000-0000-000000000000
2013-06-08 21:37:19.452759 7f005b2a2780 -1 mon.b@-1(probing) e0 error: cluster_uuid file exists with value 'b6a9b009-1343-4430-aa26-e8c1f7b7a41e', != our uuid 00000000-0000-0000-0000-000000000000