diff options
Diffstat (limited to 'synapse/storage')
| -rw-r--r-- | synapse/storage/event_federation.py | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/synapse/storage/event_federation.py b/synapse/storage/event_federation.py index 050b78d652..97d0c26475 100644 --- a/synapse/storage/event_federation.py +++ b/synapse/storage/event_federation.py @@ -344,8 +344,17 @@ class EventFederationStore(SQLBaseStore): self.get_latest_event_ids_in_room.invalidate, (room_id,) ) - @cached(max_entries=5000, num_args=2) def get_forward_extremeties_for_room(self, room_id, stream_ordering): + # We want to make the cache more effective, so we clamp to the last + # change before the given ordering. + last_change = self._events_stream_cache.get_pos_of_last_change(room_id) + if last_change: + stream_ordering = min(last_change, stream_ordering) + + return self._get_forward_extremeties_for_room(room_id, stream_ordering) + + @cached(max_entries=5000, num_args=2) + def _get_forward_extremeties_for_room(self, room_id, stream_ordering): """For a given room_id and stream_ordering, return the forward extremeties of the room at that point in "time". |