From 89ac1fa8ba55c6cbb4f1888e0542d106209d9c2a Mon Sep 17 00:00:00 2001
From: "Paul \"LeoNerd\" Evans" <paul@matrix.org>
Date: Tue, 10 Mar 2015 18:06:24 +0000
Subject: [PATCH] Add a counter to track total number of events served by the
 notifier

---
 synapse/notifier.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/synapse/notifier.py b/synapse/notifier.py
index 75e8152d0..88873d453 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -28,6 +28,8 @@ logger = logging.getLogger(__name__)
 
 metrics = synapse.metrics.get_metrics_for(__name__)
 
+notified_events_counter = metrics.register_counter("notified_events")
+
 
 # TODO(paul): Should be shared somewhere
 def count(func, l):
@@ -72,6 +74,7 @@ class _NotificationListener(object):
 
         try:
             self.deferred.callback(result)
+            notified_events_counter.inc_by(len(events))
         except defer.AlreadyCalledError:
             pass