logging.patch

diff --git a/keystone/identity/core.py b/keystone/identity/core.py
index d7d0bf4..36bffdc 100644
--- a/keystone/identity/core.py
+++ b/keystone/identity/core.py
@@ -915,12 +915,16 @@ class Manager(manager.Manager):
     @domains_configured
     @exception_translated('assertion')
     def authenticate(self, request, user_id, password):
+        LOG.info('authenticating user id: %r' % user_id)
         domain_id, driver, entity_id = (
             self._get_domain_driver_and_entity_id(user_id))
         ref = driver.authenticate(entity_id, password)
+        LOG.info('user ref: %r' % ref)
         ref = self._set_domain_id_and_mapping(
             ref, domain_id, driver, mapping.EntityType.USER)
+        LOG.info('user ref: %r' % ref)
         ref = self._shadow_nonlocal_user(ref)
+        LOG.info('shadow user ref: %r' % ref)
         PROVIDERS.shadow_users_api.set_last_active_at(ref['id'])
         return ref
 
@@ -1408,6 +1412,7 @@ class Manager(manager.Manager):
         try:
             return PROVIDERS.shadow_users_api.get_user(user['id'])
         except exception.UserNotFound:
+            LOG.info('Could not find user: %r' % user['id'])
             return PROVIDERS.shadow_users_api.create_nonlocal_user(user)