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-rw-r--r--synapse/handlers/federation.py8
-rw-r--r--synapse/handlers/message.py18
-rw-r--r--synapse/handlers/sync.py6
3 files changed, 24 insertions, 8 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index f7155fd8d3..90649af9e1 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -230,7 +230,11 @@ class FederationHandler(BaseHandler):
     @defer.inlineCallbacks
     def _filter_events_for_server(self, server_name, room_id, events):
         states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, None),
+            )
         )
 
         events_and_states = zip(events, states)
@@ -503,7 +507,7 @@ class FederationHandler(BaseHandler):
         event_ids = list(extremities.keys())
 
         states = yield defer.gatherResults([
-            self.state_handler.resolve_state_groups([e])
+            self.state_handler.resolve_state_groups(room_id, [e])
             for e in event_ids
         ])
         states = dict(zip(event_ids, [s[1] for s in states]))
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 9d6d4f0978..11c736f727 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -138,7 +138,11 @@ class MessageHandler(BaseHandler):
     @defer.inlineCallbacks
     def _filter_events_for_client(self, user_id, room_id, events):
         states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, user_id),
+            )
         )
 
         events_and_states = zip(events, states)
@@ -401,10 +405,14 @@ class MessageHandler(BaseHandler):
             except:
                 logger.exception("Failed to get snapshot")
 
-        yield defer.gatherResults(
-            [handle_room(e) for e in room_list],
-            consumeErrors=True
-        ).addErrback(unwrapFirstError)
+        # Only do N rooms at once
+        n = 5
+        d_list = [handle_room(e) for e in room_list]
+        for ds in [d_list[i:i + n] for i in range(0, len(d_list), n)]:
+            yield defer.gatherResults(
+                ds,
+                consumeErrors=True
+            ).addErrback(unwrapFirstError)
 
         ret = {
             "rooms": rooms_ret,
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 6cff6230c1..8f58774b31 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -295,7 +295,11 @@ class SyncHandler(BaseHandler):
     @defer.inlineCallbacks
     def _filter_events_for_client(self, user_id, room_id, events):
         states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, user_id),
+            )
         )
 
         events_and_states = zip(events, states)