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Faster joins: use initial list of servers if we don't have the full state yet (#14408)
Signed-off-by: Mathieu Velten <mathieuv@matrix.org> Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
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changelog.d/14408.misc
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changelog.d/14408.misc
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Faster joins: send events to initial list of servers if we don't have the full state yet.
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@ -434,7 +434,23 @@ class FederationSender(AbstractFederationSender):
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# If there are no prev event IDs then the state is empty
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# If there are no prev event IDs then the state is empty
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# and so no remote servers in the room
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# and so no remote servers in the room
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destinations = set()
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destinations = set()
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else:
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if destinations is None:
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# During partial join we use the set of servers that we got
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# when beginning the join. It's still possible that we send
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# events to servers that left the room in the meantime, but
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# we consider that an acceptable risk since it is only our own
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# events that we leak and not other server's ones.
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partial_state_destinations = (
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await self.store.get_partial_state_servers_at_join(
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event.room_id
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)
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)
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if len(partial_state_destinations) > 0:
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destinations = partial_state_destinations
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if destinations is None:
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# We check the external cache for the destinations, which is
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# We check the external cache for the destinations, which is
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# stored per state group.
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# stored per state group.
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