diff options
| -rw-r--r-- | synapse/handlers/presence.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py index 84624d4902..ff62d47679 100644 --- a/synapse/handlers/presence.py +++ b/synapse/handlers/presence.py @@ -859,6 +859,8 @@ class PresenceEventSource(object): user_ids_changed = set() if from_key and from_key < 100: + # For small deltas, its quicker to get all changes and then + # work out if we share a room or they're in our presence list changed = stream_change_cache.get_all_entities_changed(from_key) for other_user_id in changed: @@ -870,6 +872,8 @@ class PresenceEventSource(object): user_ids_changed.add(other_user_id) continue else: + # Too many possible updates. Find all users we can see and check + # if any of them have changed. user_ids_to_check = set() for room_id in room_ids: users = yield self.store.get_users_in_room(room_id) |