diff --git a/heat/engine/resource.py b/heat/engine/resource.py
index a0c811c9c2..389cfd02bc 100644
--- a/heat/engine/resource.py
+++ b/heat/engine/resource.py
@@ -1971,8 +1971,9 @@ class Resource(object):
             # Don't log an event as it just spams the user.
             pass
         except Exception as ex:
-            LOG.exception(_LE('signal %(name)s : %(msg)s')
-                          % {'name': six.text_type(self), 'msg': ex})
+            LOG.info(_LI('signal %(name)s : %(msg)s'),
+                     {'name': six.text_type(self), 'msg': ex},
+                     exc_info=True)
             failure = exception.ResourceFailure(ex, self)
             raise failure
 
diff --git a/heat/engine/stack.py b/heat/engine/stack.py
index 28f146e46e..1eb60196a8 100644
--- a/heat/engine/stack.py
+++ b/heat/engine/stack.py
@@ -775,7 +775,7 @@ class Stack(collections.Mapping):
             except AssertionError:
                 raise
             except Exception as ex:
-                LOG.exception(_LE("Exception: %s"), ex)
+                LOG.info(_LI("Exception in stack validation"), exc_info=True)
                 raise exception.StackValidationFailed(
                     message=encodeutils.safe_decode(six.text_type(ex)))
             if result:
@@ -1852,8 +1852,8 @@ class Stack(collections.Mapping):
                 scheduler.TaskRunner(res.destroy)()
             except exception.ResourceFailure as ex:
                 failed = True
-                LOG.error(_LE('Resource %(name)s delete failed: %(ex)s'),
-                          {'name': res.name, 'ex': ex})
+                LOG.info(_LI('Resource %(name)s delete failed: %(ex)s'),
+                         {'name': res.name, 'ex': ex})
 
         for res in deps:
             if not failed:
@@ -1861,9 +1861,9 @@ class Stack(collections.Mapping):
                     res.state_reset()
                     scheduler.TaskRunner(res.create)()
                 except exception.ResourceFailure as ex:
-                    LOG.exception(_LE('Resource %(name)s create failed: '
-                                      '%(ex)s'), {'name': res.name, 'ex': ex})
                     failed = True
+                    LOG.info(_LI('Resource %(name)s create failed: '
+                                 '%(ex)s'), {'name': res.name, 'ex': ex})
             else:
                 res.state_set(res.CREATE, res.FAILED,
                               'Resource restart aborted')