diff --git a/nova/conf/glance.py b/nova/conf/glance.py
index 2f9683ff975c..c2c62a3c4dd6 100644
--- a/nova/conf/glance.py
+++ b/nova/conf/glance.py
@@ -25,7 +25,7 @@ glance_opts = [
     # service catalog, however we don't have a good path there atm.
     # TODO(raj_singh): Add "required=True" flag to this option.
     cfg.ListOpt('api_servers',
-                help="""
+        help="""
 List of glance api servers endpoints available to nova.
 
 https is used for ssl-based glance api servers.
@@ -36,25 +36,25 @@ Possible values:
   (i.e. "http://10.0.1.0:9292" or "https://my.glance.server/image").
 """),
     cfg.BoolOpt('api_insecure',
-                default=False,
-                help="""
+        default=False,
+        help="""
 Enable insecure SSL (https) requests to glance.
 
 This setting can be used to turn off verification of the glance server
 certificate against the certificate authorities.
 """),
-# TODO(raj_singh): Add min=0 flag in num_retries
     cfg.IntOpt('num_retries',
-               default=0,
-               help="""
+        default=0,
+        min=0,
+        help="""
 Enable glance operation retries.
 
 Specifies the number of retries when uploading / downloading
 an image to / from glance. 0 means no retries.
 """),
     cfg.ListOpt('allowed_direct_url_schemes',
-                default=[],
-                help="""
+        default=[],
+        help="""
 List of url schemes that can be directly accessed.
 
 This option specifies a list of url schemes that can be downloaded
@@ -68,19 +68,19 @@ Possible values:
 * [file], Empty list (default)
 """),
     cfg.BoolOpt('use_glance_v1',
-                default=False,
-                deprecated_for_removal=True,
-                deprecated_since="14.0.0",
-                deprecated_reason='Glance v1 support will be removed in '
-                                  'Ocata',
-                help="""
+        default=False,
+        deprecated_for_removal=True,
+        deprecated_since="14.0.0",
+        deprecated_reason='Glance v1 support will be removed in '
+                          'Ocata',
+        help="""
 This flag allows reverting to glance v1 if for some reason glance v2 doesn't
 work in your environment. This will only exist in Newton, and a fully working
 Glance v2 will be a hard requirement in Ocata.
 """),
     cfg.BoolOpt('verify_glance_signatures',
-                default=False,
-                help="""
+        default=False,
+        help="""
 Enable image signature verification.
 
 nova uses the image signature metadata from glance and verifies the signature
@@ -96,8 +96,8 @@ Related options:
   for the signature validation.
 """),
     cfg.BoolOpt('debug',
-                default=False,
-                help='Enable or disable debug logging with glanceclient.')
+         default=False,
+         help='Enable or disable debug logging with glanceclient.')
 ]
 
 
diff --git a/nova/image/glance.py b/nova/image/glance.py
index 0a6ae5a468d8..3e060137661a 100644
--- a/nova/image/glance.py
+++ b/nova/image/glance.py
@@ -160,13 +160,7 @@ class GlanceClientWrapper(object):
         retry_excs = (glanceclient.exc.ServiceUnavailable,
                 glanceclient.exc.InvalidEndpoint,
                 glanceclient.exc.CommunicationError)
-        retries = CONF.glance.num_retries
-        if retries < 0:
-            LOG.warning(_LW("Treating negative config value (%(retries)s) for "
-                            "'glance.num_retries' as 0."),
-                        {'retries': retries})
-            retries = 0
-        num_attempts = retries + 1
+        num_attempts = 1 + CONF.glance.num_retries
 
         for attempt in range(1, num_attempts + 1):
             client = self.client or self._create_onetime_client(context,
diff --git a/nova/tests/unit/image/test_glance.py b/nova/tests/unit/image/test_glance.py
index 91e30db1eee4..514fb0e92852 100644
--- a/nova/tests/unit/image/test_glance.py
+++ b/nova/tests/unit/image/test_glance.py
@@ -418,21 +418,6 @@ class TestGlanceClientWrapperRetries(test.NoDBTestCase):
         client = self._get_static_client(create_client_mock)
         self.assert_retry_not_attempted(sleep_mock, client)
 
-    @mock.patch('nova.image.glance.LOG')
-    @mock.patch('time.sleep')
-    @mock.patch('nova.image.glance._glanceclient_from_endpoint')
-    def test_static_client_with_retries_negative(self, create_client_mock,
-                                                 sleep_mock, mock_log):
-        side_effect = glanceclient.exc.ServiceUnavailable
-        self._mock_client_images_response(create_client_mock, side_effect)
-        self.flags(num_retries=-1, group='glance')
-        client = self._get_static_client(create_client_mock)
-        self.assert_retry_not_attempted(sleep_mock, client)
-
-        self.assertTrue(mock_log.warning.called)
-        msg = mock_log.warning.call_args_list[0]
-        self.assertIn('Treating negative config value', msg[0][0])
-
     @mock.patch('time.sleep')
     @mock.patch('nova.image.glance._glanceclient_from_endpoint')
     def test_static_client_with_retries(self, create_client_mock,