diff --git a/ceilometer/storage/impl_log.py b/ceilometer/storage/impl_log.py
index 94196236f..5c1c3e490 100644
--- a/ceilometer/storage/impl_log.py
+++ b/ceilometer/storage/impl_log.py
@@ -67,12 +67,14 @@ class Connection(base.Connection):
 
         :param source: Optional source filter.
         """
+        return []
 
     def get_projects(self, source=None):
         """Return an iterable of project id strings.
 
         :param source: Optional source filter.
         """
+        return []
 
     def get_resources(self, user=None, project=None, source=None,
                       start_timestamp=None, end_timestamp=None,
@@ -95,6 +97,7 @@ class Connection(base.Connection):
         :param metaquery: Optional dict with metadata to match on.
         :param resource: Optional resource filter.
         """
+        return []
 
     def get_meters(self, user=None, project=None, resource=None, source=None,
                    metaquery={}):
@@ -113,11 +116,13 @@ class Connection(base.Connection):
         :param source: Optional source filter.
         :param metaquery: Optional dict with metadata to match on.
         """
+        return []
 
     def get_raw_events(self, event_filter):
         """Return an iterable of raw event data as created by
         :func:`ceilometer.meter.meter_message_from_counter`.
         """
+        return []
 
     def get_volume_sum(self, event_filter):
         """Return the sum of the volume field for the events