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Improve event caching code (#10119)

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Ensure we only load an event from the DB once when the same event is requested multiple times at once.
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Erik Johnston 2021-08-04 13:54:51 +01:00 • committed by GitHub
parent 11540be55e
commit c37dad67ab
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4 changed files with 158 additions and 43 deletions
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6
synapse/storage/databases/main/roommember.py
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@ -629,14 +629,12 @@ class RoomMemberWorkerStore(EventsWorkerStore):
# We don't update the event cache hit ratio as it completely throws off
# the hit ratio counts. After all, we don't populate the cache if we
# miss it here
event_map = self._get_events_from_cache(
member_event_ids, allow_rejected=False, update_metrics=False
)
event_map = self._get_events_from_cache(member_event_ids, update_metrics=False)
missing_member_event_ids = []
for event_id in member_event_ids:
ev_entry = event_map.get(event_id)
if ev_entry:
if ev_entry and not ev_entry.event.rejected_reason:
if ev_entry.event.membership == Membership.JOIN:
users_in_room[ev_entry.event.state_key] = ProfileInfo(
display_name=ev_entry.event.content.get("displayname", None),