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-rw-r--r--synapse/storage/data_stores/main/events.py2
-rw-r--r--synapse/storage/persist_events.py5
2 files changed, 2 insertions, 5 deletions
diff --git a/synapse/storage/data_stores/main/events.py b/synapse/storage/data_stores/main/events.py
index 7c3607f308..a4dab86a13 100644
--- a/synapse/storage/data_stores/main/events.py
+++ b/synapse/storage/data_stores/main/events.py
@@ -82,7 +82,7 @@ def _retry_on_integrity_error(func):
     @defer.inlineCallbacks
     def f(self, *args, **kwargs):
         try:
-            res = yield func(self, *args, **kwargs)
+            res = yield func(self, *args, delete_existing=False, **kwargs)
         except self.database_engine.module.IntegrityError:
             logger.exception("IntegrityError, retrying.")
             res = yield func(self, *args, delete_existing=True, **kwargs)
diff --git a/synapse/storage/persist_events.py b/synapse/storage/persist_events.py
index cf66225574..931dcb6558 100644
--- a/synapse/storage/persist_events.py
+++ b/synapse/storage/persist_events.py
@@ -260,9 +260,7 @@ class EventsPersistenceStorage(object):
         self._event_persist_queue.handle_queue(room_id, persisting_queue)
 
     @defer.inlineCallbacks
-    def _persist_events(
-        self, events_and_contexts, backfilled=False, delete_existing=False
-    ):
+    def _persist_events(self, events_and_contexts, backfilled=False):
         """Calculates the change to current state and forward extremities, and
         persists the given events and with those updates.
 
@@ -412,7 +410,6 @@ class EventsPersistenceStorage(object):
                 state_delta_for_room=state_delta_for_room,
                 new_forward_extremeties=new_forward_extremeties,
                 backfilled=backfilled,
-                delete_existing=delete_existing,
             )
 
     @defer.inlineCallbacks