Expand timeout now that we fix the sleeping duration

tangostationcontrol/tangostationcontrol/integration_test/default/toolkit/test_archiver.py

@@ -70,7 +70,9 @@ class TestArchiver(BaseIntegrationTestCase):
         # Retrieve data from DB views
         self.retriever = RetrieverTimescale()
         self.assertIsNotNone(self.retriever)
-        records = self._wait_for_archiving(attr_fullname, archive_event_period)
+        records = self._wait_for_archiving(
+            attr_fullname, archive_event_period * 2
+        )  # wait for >1 period to avoid race conditions
         self.assertTrue(len(records) > 0)
         item = records[-1]  # last table record
         self.assertEqual("stat/recv/1", item.device)  # column device