Use presence replication stream to invalidate cache

Instead of using the cache invalidation replication stream to invalidate
the _get_presence_cache, we can instead rely on the presence replication
stream. This reduces the amount of replication traffic considerably.

1 files changed, 2 insertions, 2 deletions

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

index 4d1590d2b4..4edfe29585 100644
--- a/synapse/storage/presence.py
+++ b/synapse/storage/presence.py
@@ -85,8 +85,8 @@ class PresenceStore(SQLBaseStore):
                 self.presence_stream_cache.entity_has_changed,
                 state.user_id, stream_id,
             )
-            self._invalidate_cache_and_stream(
-                txn, self._get_presence_for_user, (state.user_id,)
+            txn.call_after(
+                self._get_presence_for_user, (state.user_id,)
             )
 
         # Actually insert new rows