diff --git a/senlin/drivers/openstack/lbaas.py b/senlin/drivers/openstack/lbaas.py
index bc023de16..b1b711179 100644
--- a/senlin/drivers/openstack/lbaas.py
+++ b/senlin/drivers/openstack/lbaas.py
@@ -267,8 +267,8 @@ class LoadBalancerDriver(base.DriverBase):
         node_detail = node.get_details(oslo_context.get_current())
         addresses = node_detail.get('addresses')
         if net_name not in addresses:
-            LOG.error(_LE('Node is not in subnet %(subnet)s'),
-                      {'subnet': subnet})
+            msg = _LE('Node is not in subnet %(subnet)s')
+            LOG.error(msg, {'subnet': subnet})
             return None
 
         # Use the first IP address if more than one are found in target network
diff --git a/senlin/engine/actions/cluster_action.py b/senlin/engine/actions/cluster_action.py
index 25b6ef38c..dc1cd30d8 100644
--- a/senlin/engine/actions/cluster_action.py
+++ b/senlin/engine/actions/cluster_action.py
@@ -714,9 +714,9 @@ class ClusterAction(base.Action):
         # desired is checked when strict is True
         curr_size = len(self.cluster.nodes)
         if count > curr_size:
-            LOG.warning(_('Triming count (%(count)s) to current cluster size '
-                          '(%(curr)s) for scaling in'),
-                        {'count': count, 'curr': curr_size})
+            msg = _("Triming count (%(count)s) to current "
+                    "cluster size (%(curr)s) for scaling in")
+            LOG.warning(msg, {'count': count, 'curr': curr_size})
             count = curr_size
         new_size = curr_size - count
 
diff --git a/senlin/engine/event.py b/senlin/engine/event.py
index 0933c534a..1c73ff495 100644
--- a/senlin/engine/event.py
+++ b/senlin/engine/event.py
@@ -126,7 +126,8 @@ def error(context, entity, action, status=None, status_reason=None,
                   action=action, status=status, status_reason=status_reason,
                   user=context.user, project=context.project)
     event.store(context)
-    LOG.error(_LE('%(name)s [%(id)s] %(action)s - %(status)s: %(reason)s'),
+    msg = _LE('%(name)s [%(id)s] %(action)s - %(status)s: %(reason)s')
+    LOG.error(msg,
               {'name': event.oname,
                'id': event.oid and event.oid[:8],
                'action': action,
@@ -141,7 +142,8 @@ def warning(context, entity, action, status=None, status_reason=None,
                   action=action, status=status, status_reason=status_reason,
                   user=context.user, project=context.project)
     event.store(context)
-    LOG.warning(_LW('%(name)s [%(id)s] %(action)s - %(status)s: %(reason)s'),
+    msg = _LW('%(name)s [%(id)s] %(action)s - %(status)s: %(reason)s')
+    LOG.warning(msg,
                 {'name': event.oname,
                  'id': event.oid and event.oid[:8],
                  'action': action,
diff --git a/senlin/engine/registry.py b/senlin/engine/registry.py
index 15ef0566a..b2ee3b290 100644
--- a/senlin/engine/registry.py
+++ b/senlin/engine/registry.py
@@ -81,7 +81,8 @@ class Registry(object):
         registry = self._registry
         if info is None:
             # delete this entry.
-            LOG.warning(_LW('Removing %(item)s from registry'), {'item': name})
+            msg = _LW("Removing %(item)s from registry")
+            LOG.warning(msg, {'item': name})
             registry.pop(name, None)
             return
 
@@ -96,8 +97,8 @@ class Registry(object):
             LOG.warning(_LW('Changing %(name)s from %(old)s to %(new)s'),
                         details)
         else:
-            LOG.info(_LI('Registering %(name)s -> %(value)s'), {
-                'name': name, 'value': str(info.plugin)})
+            msg = _LI('Registering %(name)s -> %(value)s')
+            LOG.info(msg, {'name': name, 'value': str(info.plugin)})
 
         info.user_provided = not self.is_global
         registry[name] = info