Add some invalidations to a cache_stream

1 files changed, 3 insertions, 0 deletions

diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py

index 73fb334dd6..a0c029a2fc 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -122,6 +122,9 @@ class DataStore(RoomMemberStore, RoomStore,
             db_conn, "pushers", "id",
             extra_tables=[("deleted_pushers", "stream_id")],
         )
+        self._cache_id_gen = StreamIdGenerator(
+            db_conn, "cache_stream", "stream_id",
+        )
 
         events_max = self._stream_id_gen.get_current_token()
         event_cache_prefill, min_event_val = self._get_cache_dict(