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Merge pull request #4017 from matrix-org/rav/optimise_filter_events_for_server
Optimisation for filter_events_for_server
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commit
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changelog.d/4017.misc
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changelog.d/4017.misc
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Optimisation for serving federation requests
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@ -324,14 +324,13 @@ def filter_events_for_server(store, server_name, events):
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# server's domain.
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#
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# event_to_state_ids contains lots of duplicates, so it turns out to be
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# cheaper to build a complete set of unique
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# ((type, state_key), event_id) tuples, and then filter out the ones we
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# don't want.
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# cheaper to build a complete event_id => (type, state_key) dict, and then
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# filter out the ones we don't want
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#
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state_key_to_event_id_set = {
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e
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event_id_to_state_key = {
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event_id: key
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for key_to_eid in itervalues(event_to_state_ids)
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for e in key_to_eid.items()
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for key, event_id in iteritems(key_to_eid)
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}
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def include(typ, state_key):
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@ -346,7 +345,7 @@ def filter_events_for_server(store, server_name, events):
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event_map = yield store.get_events([
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e_id
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for key, e_id in state_key_to_event_id_set
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for e_id, key in iteritems(event_id_to_state_key)
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if include(key[0], key[1])
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])
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