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-rw-r--r--synapse/replication/resource.py3
-rw-r--r--synapse/replication/slave/storage/events.py21
-rw-r--r--synapse/storage/events.py20
-rw-r--r--synapse/storage/roommember.py2
4 files changed, 5 insertions, 41 deletions
diff --git a/synapse/replication/resource.py b/synapse/replication/resource.py
index a30e647474..d8eb14592b 100644
--- a/synapse/replication/resource.py
+++ b/synapse/replication/resource.py
@@ -299,9 +299,6 @@ class ReplicationResource(Resource):
                 "backward_ex_outliers", res.backward_ex_outliers,
                 ("position", "event_id", "state_group"),
             )
-            writer.write_header_and_rows(
-                "state_resets", res.state_resets, ("position",),
-            )
 
     @defer.inlineCallbacks
     def presence(self, writer, current_token, request_streams):
diff --git a/synapse/replication/slave/storage/events.py b/synapse/replication/slave/storage/events.py
index b3f3bf7488..15a025a019 100644
--- a/synapse/replication/slave/storage/events.py
+++ b/synapse/replication/slave/storage/events.py
@@ -192,10 +192,6 @@ class SlavedEventStore(BaseSlavedStore):
         return result
 
     def process_replication(self, result):
-        state_resets = set(
-            r[0] for r in result.get("state_resets", {"rows": []})["rows"]
-        )
-
         stream = result.get("events")
         if stream:
             self._stream_id_gen.advance(int(stream["position"]))
@@ -205,7 +201,7 @@ class SlavedEventStore(BaseSlavedStore):
 
             for row in stream["rows"]:
                 self._process_replication_row(
-                    row, backfilled=False, state_resets=state_resets
+                    row, backfilled=False,
                 )
 
         stream = result.get("backfill")
@@ -213,7 +209,7 @@ class SlavedEventStore(BaseSlavedStore):
             self._backfill_id_gen.advance(-int(stream["position"]))
             for row in stream["rows"]:
                 self._process_replication_row(
-                    row, backfilled=True, state_resets=state_resets
+                    row, backfilled=True,
                 )
 
         stream = result.get("forward_ex_outliers")
@@ -232,20 +228,15 @@ class SlavedEventStore(BaseSlavedStore):
 
         return super(SlavedEventStore, self).process_replication(result)
 
-    def _process_replication_row(self, row, backfilled, state_resets):
-        position = row[0]
+    def _process_replication_row(self, row, backfilled):
         internal = json.loads(row[1])
         event_json = json.loads(row[2])
         event = FrozenEvent(event_json, internal_metadata_dict=internal)
         self.invalidate_caches_for_event(
-            event, backfilled, reset_state=position in state_resets
+            event, backfilled,
         )
 
-    def invalidate_caches_for_event(self, event, backfilled, reset_state):
-        if reset_state:
-            self.get_rooms_for_user.invalidate_all()
-            self.get_users_in_room.invalidate((event.room_id,))
-
+    def invalidate_caches_for_event(self, event, backfilled):
         self._invalidate_get_event_cache(event.event_id)
 
         self.get_latest_event_ids_in_room.invalidate((event.room_id,))
@@ -267,8 +258,6 @@ class SlavedEventStore(BaseSlavedStore):
             self._invalidate_get_event_cache(event.redacts)
 
         if event.type == EventTypes.Member:
-            self.get_rooms_for_user.invalidate((event.state_key,))
-            self.get_users_in_room.invalidate((event.room_id,))
             self._membership_stream_cache.entity_has_changed(
                 event.state_key, event.internal_metadata.stream_ordering
             )
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 6685b9da1c..f4352b326b 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -572,14 +572,6 @@ class EventsStore(SQLBaseStore):
                     txn, self.get_users_in_room, (room_id,)
                 )
 
-                # Add an entry to the current_state_resets table to record the point
-                # where we clobbered the current state
-                self._simple_insert_txn(
-                    txn,
-                    table="current_state_resets",
-                    values={"event_stream_ordering": max_stream_order}
-                )
-
         for room_id, new_extrem in new_forward_extremeties.items():
             self._simple_delete_txn(
                 txn,
@@ -1611,15 +1603,6 @@ class EventsStore(SQLBaseStore):
                     upper_bound = current_forward_id
 
                 sql = (
-                    "SELECT event_stream_ordering FROM current_state_resets"
-                    " WHERE ? < event_stream_ordering"
-                    " AND event_stream_ordering <= ?"
-                    " ORDER BY event_stream_ordering ASC"
-                )
-                txn.execute(sql, (last_forward_id, upper_bound))
-                state_resets = txn.fetchall()
-
-                sql = (
                     "SELECT event_stream_ordering, event_id, state_group"
                     " FROM ex_outlier_stream"
                     " WHERE ? > event_stream_ordering"
@@ -1630,7 +1613,6 @@ class EventsStore(SQLBaseStore):
                 forward_ex_outliers = txn.fetchall()
             else:
                 new_forward_events = []
-                state_resets = []
                 forward_ex_outliers = []
 
             sql = (
@@ -1670,7 +1652,6 @@ class EventsStore(SQLBaseStore):
             return AllNewEventsResult(
                 new_forward_events, new_backfill_events,
                 forward_ex_outliers, backward_ex_outliers,
-                state_resets,
             )
         return self.runInteraction("get_all_new_events", get_all_new_events_txn)
 
@@ -1896,5 +1877,4 @@ class EventsStore(SQLBaseStore):
 AllNewEventsResult = namedtuple("AllNewEventsResult", [
     "new_forward_events", "new_backfill_events",
     "forward_ex_outliers", "backward_ex_outliers",
-    "state_resets"
 ])
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index 0fdcf29085..845def8467 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -66,8 +66,6 @@ class RoomMemberStore(SQLBaseStore):
         )
 
         for event in events:
-            txn.call_after(self.get_rooms_for_user.invalidate, (event.state_key,))
-            txn.call_after(self.get_users_in_room.invalidate, (event.room_id,))
             txn.call_after(
                 self._membership_stream_cache.entity_has_changed,
                 event.state_key, event.internal_metadata.stream_ordering