FLAG rename: bandwith_poll_*=>bandwidth_poll_*

Fix bug 1036407

bandwith_poll_interval is deprecated in Folsom and will be removed in
Grizzly

Change-Id: I32cbdffce21a0024bd0303d46d7b7632db6ec8cb

etc/nova/nova.conf.sample

@@ -294,7 +294,7 @@
 #### (StrOpt) time period to generate instance usages for.  Time period
 ####          must be hour, day, month or year
 
-# bandwith_poll_interval=600
+# bandwidth_poll_interval=600
 #### (IntOpt) interval to pull bandwidth usage info
 
 # start_guests_on_host_boot=false

nova/compute/manager.py

@@ -2720,7 +2720,8 @@ class ComputeManager(manager.SchedulerDependentManager):
             start_time = utils.last_completed_audit_period()[1]
 
         curr_time = time.time()
-        if curr_time - self._last_bw_usage_poll > FLAGS.bandwith_poll_interval:
+        if (curr_time - self._last_bw_usage_poll >
+                FLAGS.bandwidth_poll_interval):
             self._last_bw_usage_poll = curr_time
             LOG.info(_("Updating bandwidth usage cache"))
 

nova/flags.py

@@ -311,7 +311,8 @@ global_opts = [
                default='month',
                help='time period to generate instance usages for.  '
                     'Time period must be hour, day, month or year'),
-    cfg.IntOpt('bandwith_poll_interval',
+    cfg.IntOpt('bandwidth_poll_interval',
+               deprecated_name='bandwith_poll_interval',
                default=600,
                help='interval to pull bandwidth usage info'),
     cfg.BoolOpt('start_guests_on_host_boot',