Description of problem:
=======================
cthulhu crashes when osd_metadata is missing from the OSD_map

Version-Release number of selected component (if applicable):
==============================================================
ceph-deploy-1.5.27.4-1.el7cp.noarch
ceph-common-0.94.5-4.el7cp.x86_64
calamari-server-1.3.2-2.el7cp.x86_64
calamari-clients-1.3-2.el7cp.x86_64
salt-2014.1.5-3.el7cp.noarch
salt-minion-2014.1.5-3.el7cp.noarch
salt-master-2014.1.5-3.el7cp.noarch



How reproducible:
=================
always


Steps to Reproduce:
==================
1.Cluster had ceph-1.3.1 on RHEL-7.1
2. started upgrading it to 1.3.2 z build.
3. after uograding calamari server, web browser gives error - server error - 500.

cthulhu log :-
[c1@magna048 ~]$ sudo tail -f /var/log/calamari/cthulhu.log
    cluster_monitor.inject_sync_object(None, sync_type, version, msgpack.unpackb(latest_record.data))
  File "/opt/calamari/venv/lib/python2.7/site-packages/calamari_cthulhu-0.1-py2.7.egg/cthulhu/manager/cluster_monitor.py", line 351, in inject_sync_object
    new_object = self._sync_objects.on_fetch_complete(minion_id, sync_type, version, data)
  File "/opt/calamari/venv/lib/python2.7/site-packages/calamari_cthulhu-0.1-py2.7.egg/cthulhu/manager/cluster_monitor.py", line 138, in on_fetch_complete
    new_object = self.set_map(sync_type, version, data)
  File "/opt/calamari/venv/lib/python2.7/site-packages/calamari_cthulhu-0.1-py2.7.egg/cthulhu/manager/cluster_monitor.py", line 56, in set_map
    so = self._objects[typ] = typ(version, map_data)
  File "/opt/calamari/venv/lib/python2.7/site-packages/calamari_common-0.1-py2.7.egg/calamari_common/types.py", line 60, in __init__
    self.metadata_by_id = dict([(m['osd'], m) for m in data['osd_metadata']])
KeyError: 'osd_metadata'



Actual results:
===============
cthulhu crashed as osd_metadata is missing





Additional info:
===================
[c1@magna048 ~]$ sudo tail -f /var/log/calamari/calamari.log 
    reply_event = bufchan.recv(timeout)
  File "/opt/calamari/venv/lib/python2.7/site-packages/zerorpc/channel.py", line 267, in recv
    event = self._input_queue.get(timeout=timeout)
  File "/opt/calamari/venv/lib/python2.7/site-packages/gevent/queue.py", line 200, in get
    result = waiter.get()
  File "/opt/calamari/venv/lib/python2.7/site-packages/gevent/hub.py", line 568, in get
    return self.hub.switch()
  File "/opt/calamari/venv/lib/python2.7/site-packages/gevent/hub.py", line 331, in switch
    return greenlet.switch(self)
LostRemote: Lost remote after 10s heartbeat