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-rw-r--r--synapse/federation/sender/per_destination_queue.py18
1 files changed, 9 insertions, 9 deletions
diff --git a/synapse/federation/sender/per_destination_queue.py b/synapse/federation/sender/per_destination_queue.py
index 8152e80b88..c3132f7319 100644
--- a/synapse/federation/sender/per_destination_queue.py
+++ b/synapse/federation/sender/per_destination_queue.py
@@ -381,7 +381,9 @@ class PerDestinationQueue:
                 )
             )
 
-        if self._last_successful_stream_ordering is None:
+        last_successful_stream_ordering = self._last_successful_stream_ordering
+
+        if last_successful_stream_ordering is None:
             # if it's still None, then this means we don't have the information
             # in our database ­ we haven't successfully sent a PDU to this server
             # (at least since the introduction of the feature tracking
@@ -394,8 +396,7 @@ class PerDestinationQueue:
         # get at most 50 catchup room/PDUs
         while True:
             event_ids = await self._store.get_catch_up_room_event_ids(
-                self._destination,
-                self._last_successful_stream_ordering,
+                self._destination, last_successful_stream_ordering
             )
 
             if not event_ids:
@@ -403,7 +404,7 @@ class PerDestinationQueue:
                 # of a race condition, so we check that no new events have been
                 # skipped due to us being in catch-up mode
 
-                if self._catchup_last_skipped > self._last_successful_stream_ordering:
+                if self._catchup_last_skipped > last_successful_stream_ordering:
                     # another event has been skipped because we were in catch-up mode
                     continue
 
@@ -470,7 +471,7 @@ class PerDestinationQueue:
                         # offline
                         if (
                             p.internal_metadata.stream_ordering
-                            < self._last_successful_stream_ordering
+                            < last_successful_stream_ordering
                         ):
                             continue
 
@@ -513,12 +514,11 @@ class PerDestinationQueue:
                 # from the *original* PDU, rather than the PDU(s) we actually
                 # send. This is because we use it to mark our position in the
                 # queue of missed PDUs to process.
-                self._last_successful_stream_ordering = (
-                    pdu.internal_metadata.stream_ordering
-                )
+                last_successful_stream_ordering = pdu.internal_metadata.stream_ordering
 
+                self._last_successful_stream_ordering = last_successful_stream_ordering
                 await self._store.set_destination_last_successful_stream_ordering(
-                    self._destination, self._last_successful_stream_ordering
+                    self._destination, last_successful_stream_ordering
                 )
 
     def _get_rr_edus(self, force_flush: bool) -> Iterable[Edu]: