diff --git a/ceilometer/notification.py b/ceilometer/notification.py
index 10281a3d5f..38ed00a3f9 100644
--- a/ceilometer/notification.py
+++ b/ceilometer/notification.py
@@ -132,7 +132,11 @@ class NotificationService(cotyledon.Service):
 
         endpoints = []
         for pipe_mgr in self.managers:
-            endpoints.extend(pipe_mgr.get_main_endpoints())
+            LOG.debug("Loading manager endpoints for [%s].", pipe_mgr)
+            endpoint = pipe_mgr.get_main_endpoints()
+            LOG.debug("Loaded endpoints [%s] for manager [%s].",
+                      endpoint, pipe_mgr)
+            endpoints.extend(endpoint)
         targets = self.get_targets()
 
         urls = self.conf.notification.messaging_urls or [None]
diff --git a/ceilometer/pipeline/sample.py b/ceilometer/pipeline/sample.py
index 79999d0bbf..66e857e0c9 100644
--- a/ceilometer/pipeline/sample.py
+++ b/ceilometer/pipeline/sample.py
@@ -38,10 +38,15 @@ class SampleEndpoint(base.NotificationEndpoint):
     def process_notifications(self, priority, notifications):
         for message in notifications:
             try:
+                LOG.debug("Processing sample notification [%s] for publisher "
+                          "[%s] with priority [%s] using the agent [%s].",
+                          message, self.publisher, priority, self)
                 with self.publisher as p:
                     p(list(self.build_sample(message)))
-            except Exception:
-                LOG.error('Fail to process notification', exc_info=True)
+            except Exception as e:
+                LOG.error('Fail to process notification message [%s]'
+                          % message, exc_info=True)
+                raise e
 
     def build_sample(notification):
         """Build sample from provided notification."""