Increase server side retries

This is to take into account possible increases in time gap between
operations from recent firmware versions, for example in Dell idrac
series 5.x where the time gap increased to almost 20 seconds from
the 10 seconds of the 4.x series, and avoid timeouts.

Change-Id: I371e4a2d294a3a87eddb230f13bca713e304f948

releasenotes/notes/increase-server-retries-5f11edde8ee0b461.yaml

@@ -0,0 +1,6 @@
+fixes:
+  - |
+    To avoid timeouts with recent versions of firmwares we need to increase
+    the number of server side retries.
+    For example, in idrac firmware series 5.x the time gap between operations
+    is almost 20 seconds instead of the 10 seconds in the 4.x series.

sushy/connector.py

@@ -28,7 +28,7 @@ from sushy import utils
 LOG = logging.getLogger(__name__)
 
 
-_SERVER_SIDE_RETRIES = 5
+_SERVER_SIDE_RETRIES = 10
 _SERVER_SIDE_RETRY_DELAY = 3
 
 

sushy/tests/unit/test_connector.py

@@ -401,8 +401,8 @@ class ConnectorOpTestCase(base.TestCase):
             self.conn._op('GET', 'http://foo.bar')
         exc = cm.exception
         self.assertEqual(http_client.INTERNAL_SERVER_ERROR, exc.status_code)
-        self.assertEqual(5, mock_sleep.call_count)
-        self.assertEqual(6, self.request.call_count)
+        self.assertEqual(10, mock_sleep.call_count)
+        self.assertEqual(11, self.request.call_count)
 
     def test_access_error(self):
         self.conn._auth = None