diff --git a/ceilometer/nova_client.py b/ceilometer/nova_client.py
index 8334aaedfe..47f1337a09 100644
--- a/ceilometer/nova_client.py
+++ b/ceilometer/nova_client.py
@@ -141,17 +141,3 @@ class Client(object):
         return self._with_flavor_and_image(self.nova_client.servers.list(
             detailed=True,
             search_opts=search_opts))
-
-    @logged
-    def instance_get_all(self, since=None):
-        """Returns list of all instances.
-
-        If since is supplied, it will return the instances changes since that
-        datetime. since should be in ISO Format '%Y-%m-%dT%H:%M:%SZ'
-        """
-        search_opts = {'all_tenants': True}
-        if since:
-            search_opts['changes-since'] = since
-        return self.nova_client.servers.list(
-            detailed=True,
-            search_opts=search_opts)
diff --git a/ceilometer/tests/unit/test_novaclient.py b/ceilometer/tests/unit/test_novaclient.py
index a5e45b52e4..56b16b6270 100644
--- a/ceilometer/tests/unit/test_novaclient.py
+++ b/ceilometer/tests/unit/test_novaclient.py
@@ -93,16 +93,6 @@ class TestNovaClient(base.BaseTestCase):
         self.assertEqual(11, instances[0].kernel_id)
         self.assertEqual(21, instances[0].ramdisk_id)
 
-    def test_instance_get_all(self):
-        with mock.patch.object(self.nv.nova_client.servers, 'list',
-                               side_effect=self.fake_servers_list):
-            instances = self.nv.instance_get_all()
-
-        self.assertEqual(2, len(instances))
-        self.assertEqual(42, instances[0].id)
-        self.assertEqual(1, instances[0].flavor['id'])
-        self.assertEqual(1, instances[0].image['id'])
-
     @staticmethod
     def fake_servers_list_unknown_flavor(*args, **kwargs):
         a = mock.MagicMock()