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-rw-r--r--synapse/replication/tcp/resource.py14
1 files changed, 8 insertions, 6 deletions
diff --git a/synapse/replication/tcp/resource.py b/synapse/replication/tcp/resource.py
index 611fb66e1d..fd59f1595f 100644
--- a/synapse/replication/tcp/resource.py
+++ b/synapse/replication/tcp/resource.py
@@ -25,6 +25,7 @@ from twisted.internet import defer
 from twisted.internet.protocol import Factory
 
 from synapse.metrics import LaterGauge
+from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.util.metrics import Measure, measure_func
 
 from .protocol import ServerReplicationStreamProtocol
@@ -117,7 +118,6 @@ class ReplicationStreamer(object):
         for conn in self.connections:
             conn.send_error("server shutting down")
 
-    @defer.inlineCallbacks
     def on_notifier_poke(self):
         """Checks if there is actually any new data and sends it to the
         connections if there are.
@@ -132,14 +132,16 @@ class ReplicationStreamer(object):
                 stream.discard_updates_and_advance()
             return
 
-        # If we're in the process of checking for new updates, mark that fact
-        # and return
+        self.pending_updates = True
+
         if self.is_looping:
-            logger.debug("Noitifier poke loop already running")
-            self.pending_updates = True
+            logger.debug("Notifier poke loop already running")
             return
 
-        self.pending_updates = True
+        run_as_background_process("replication_notifier", self._run_notifier_loop)
+
+    @defer.inlineCallbacks
+    def _run_notifier_loop(self):
         self.is_looping = True
 
         try: