diff --git a/zaza/openstack/charm_tests/mysql/tests.py b/zaza/openstack/charm_tests/mysql/tests.py
index 9053bfa..1e11845 100644
--- a/zaza/openstack/charm_tests/mysql/tests.py
+++ b/zaza/openstack/charm_tests/mysql/tests.py
@@ -379,6 +379,8 @@ class PerconaClusterScaleTests(PerconaClusterTest):
         i = 0
         while i < 10:
             i += 1
+            # XXX time.sleep roundup
+            # https://github.com/openstack-charmers/zaza-openstack-tests/issues/46
             time.sleep(5)  # give some time to pacemaker to react
             new_crm_master = self.get_crm_master()
 
diff --git a/zaza/openstack/charm_tests/vault/tests.py b/zaza/openstack/charm_tests/vault/tests.py
index 800a863..ec398b7 100644
--- a/zaza/openstack/charm_tests/vault/tests.py
+++ b/zaza/openstack/charm_tests/vault/tests.py
@@ -132,6 +132,8 @@ class VaultTest(BaseVaultTest):
                 try:
                     self.assertTrue(client.hvac_client.is_authenticated())
                 except hvac.exceptions.InternalServerError:
+                    # XXX time.sleep roundup
+                    # https://github.com/openstack-charmers/zaza-openstack-tests/issues/46
                     time.sleep(2)
                 else:
                     break
diff --git a/zaza/openstack/charm_tests/vault/utils.py b/zaza/openstack/charm_tests/vault/utils.py
index da60cf9..cdc68b1 100644
--- a/zaza/openstack/charm_tests/vault/utils.py
+++ b/zaza/openstack/charm_tests/vault/utils.py
@@ -133,6 +133,8 @@ def is_initialized(client):
                 urllib3.exceptions.NewConnectionError,
                 urllib3.exceptions.MaxRetryError,
                 requests.exceptions.ConnectionError):
+            # XXX time.sleep roundup
+            # https://github.com/openstack-charmers/zaza-openstack-tests/issues/46
             time.sleep(2)
         else:
             break