fix default state to be 0 instead of pending

nova/datastore.py

@@ -76,7 +76,8 @@ class RedisModel(object):
             self.set_default_state()
 
     def set_default_state(self):
-        self.state = {'state' : 'pending',
+        self.state = {'state': 0,
+                      'state_description': 'pending',
                       'node_name': 'unassigned',
                       'project_id': 'unassigned',
                       'user_id': 'unassigned'}