Handle sending events and device messages over federation

synapse/replication/slave/storage/events.py

@@ -26,6 +26,11 @@ from synapse.storage.stream import StreamStore
 from synapse.util.caches.stream_change_cache import StreamChangeCache
 
 import ujson as json
+import logging
+
+
+logger = logging.getLogger(__name__)
+
 
 # So, um, we want to borrow a load of functions intended for reading from
 # a DataStore, but we don't want to take functions that either write to the
@@ -180,6 +185,8 @@ class SlavedEventStore(BaseSlavedStore):
         EventFederationStore.__dict__["_get_forward_extremeties_for_room"]
     )
 
+    get_all_new_events_stream = DataStore.get_all_new_events_stream.__func__
+
     def stream_positions(self):
         result = super(SlavedEventStore, self).stream_positions()
         result["events"] = self._stream_id_gen.get_current_token()
@@ -194,6 +201,10 @@ class SlavedEventStore(BaseSlavedStore):
         stream = result.get("events")
         if stream:
             self._stream_id_gen.advance(int(stream["position"]))
+
+            if stream["rows"]:
+                logger.info("Got %d event rows", len(stream["rows"]))
+
             for row in stream["rows"]:
                 self._process_replication_row(
                     row, backfilled=False, state_resets=state_resets