diff --git a/nova/scheduler/client/report.py b/nova/scheduler/client/report.py
index 320cf4d5c847..fb157fd42503 100644
--- a/nova/scheduler/client/report.py
+++ b/nova/scheduler/client/report.py
@@ -776,6 +776,9 @@ class SchedulerReportClient(object):
         resp = self.delete(url)
         if resp:
             LOG.info(_LI("Deleted resource provider %s"), rp_uuid)
+            # clean the caches
+            self._resource_providers.pop(rp_uuid, None)
+            self._provider_aggregate_map.pop(rp_uuid, None)
         else:
             # Check for 404 since we don't need to log a warning if we tried to
             # delete something which doesn"t actually exist.
diff --git a/nova/tests/unit/scheduler/client/test_report.py b/nova/tests/unit/scheduler/client/test_report.py
index 15a79ee45049..a30bad2a0dba 100644
--- a/nova/tests/unit/scheduler/client/test_report.py
+++ b/nova/tests/unit/scheduler/client/test_report.py
@@ -1309,6 +1309,7 @@ class TestAllocations(SchedulerReportClientTestCase):
     @mock.patch("nova.objects.InstanceList.get_by_host_and_node")
     def test_delete_resource_provider_cascade(self, mock_by_host,
             mock_del_alloc, mock_delete):
+        self.client._resource_providers[uuids.cn] = mock.Mock()
         cn = objects.ComputeNode(uuid=uuids.cn, host="fake_host",
                 hypervisor_hostname="fake_hostname", )
         inst1 = objects.Instance(uuid=uuids.inst1)
@@ -1321,6 +1322,7 @@ class TestAllocations(SchedulerReportClientTestCase):
         self.assertEqual(2, mock_del_alloc.call_count)
         exp_url = "/resource_providers/%s" % uuids.cn
         mock_delete.assert_called_once_with(exp_url)
+        self.assertNotIn(uuids.cn, self.client._resource_providers)
 
     @mock.patch("nova.scheduler.client.report.SchedulerReportClient."
                 "delete")
@@ -1329,6 +1331,7 @@ class TestAllocations(SchedulerReportClientTestCase):
     @mock.patch("nova.objects.InstanceList.get_by_host_and_node")
     def test_delete_resource_provider_no_cascade(self, mock_by_host,
             mock_del_alloc, mock_delete):
+        self.client._provider_aggregate_map[uuids.cn] = mock.Mock()
         cn = objects.ComputeNode(uuid=uuids.cn, host="fake_host",
                 hypervisor_hostname="fake_hostname", )
         inst1 = objects.Instance(uuid=uuids.inst1)
@@ -1341,6 +1344,7 @@ class TestAllocations(SchedulerReportClientTestCase):
         mock_del_alloc.assert_not_called()
         exp_url = "/resource_providers/%s" % uuids.cn
         mock_delete.assert_called_once_with(exp_url)
+        self.assertNotIn(uuids.cn, self.client._provider_aggregate_map)
 
     @mock.patch("nova.scheduler.client.report.SchedulerReportClient."
                 "delete")