Don't pass filter_properites to managers

Fixes bug 921789

distributed_scheduler is trying to pass filter_properties to compute
manager but it's not serializable.. and we shouldn't pass it anyway.

Change-Id: I17ce04b71dfa3cef77a6883ce3cd6fede95a538a

nova/scheduler/distributed_scheduler.py

@@ -98,6 +98,10 @@ class DistributedScheduler(driver.Scheduler):
         if not weighted_hosts:
             raise exception.NoValidHost(reason=_(""))
 
+        # NOTE(comstud): Make sure we do not pass this through.  It
+        # contains an instance of RpcContext that cannot be serialized.
+        kwargs.pop('filter_properties', None)
+
         instances = []
         for num in xrange(num_instances):
             if not weighted_hosts:
@@ -141,6 +145,10 @@ class DistributedScheduler(driver.Scheduler):
             raise exception.NoValidHost(reason=_(""))
         host = hosts.pop(0)
 
+        # NOTE(comstud): Make sure we do not pass this through.  It
+        # contains an instance of RpcContext that cannot be serialized.
+        kwargs.pop('filter_properties', None)
+
         # Forward off to the host
         driver.cast_to_compute_host(context, host.host_state.host,
                 'prep_resize', **kwargs)

nova/tests/scheduler/test_distributed_scheduler.py

@@ -129,6 +129,8 @@ class DistributedSchedulerTestCase(test.TestCase):
             return least_cost.WeightedHost(1, zone='x', blob='y')
 
         def _fake_provision_resource_locally(*args, **kwargs):
+            # Tests that filter_properties is stripped
+            self.assertNotIn('filter_properties', kwargs)
             self.locally_called = True
             return 1
 
@@ -152,7 +154,8 @@ class DistributedSchedulerTestCase(test.TestCase):
             }
 
         fake_context = context.RequestContext('user', 'project')
-        instances = sched.schedule_run_instance(fake_context, request_spec)
+        instances = sched.schedule_run_instance(fake_context, request_spec,
+                filter_properties={})
         self.assertTrue(instances)
         self.assertFalse(self.schedule_called)
         self.assertTrue(self.from_blob_called)