Add a test which profiles filter_events_for_server in a large room
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@ -15,9 +15,11 @@
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import logging
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from twisted.internet import defer
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from twisted.internet.defer import succeed
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from synapse.events import FrozenEvent
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from synapse.visibility import filter_events_for_server
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from tests import unittest
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import tests.unittest
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from tests.utils import setup_test_homeserver
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logger = logging.getLogger(__name__)
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@ -25,7 +27,7 @@ logger = logging.getLogger(__name__)
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TEST_ROOM_ID = "!TEST:ROOM"
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class FilterEventsForServerTestCase(unittest.TestCase):
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class FilterEventsForServerTestCase(tests.unittest.TestCase):
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@defer.inlineCallbacks
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def setUp(self):
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self.hs = yield setup_test_homeserver()
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@ -105,3 +107,154 @@ class FilterEventsForServerTestCase(unittest.TestCase):
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yield self.hs.get_datastore().persist_event(event, context)
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defer.returnValue(event)
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@defer.inlineCallbacks
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def test_large_room(self):
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# see what happens when we have a large room with hundreds of thousands
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# of membership events
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# As above, the events to be filtered consist of 10 membership events,
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# where one of them is for a user on the server we are filtering for.
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import cProfile
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import pstats
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import time
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# we stub out the store, because building up all that state the normal
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# way is very slow.
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test_store = _TestStore()
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# our initial state is 100000 membership events and one
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# history_visibility event.
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room_state = []
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history_visibility_evt = FrozenEvent({
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"event_id": "$history_vis",
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"type": "m.room.history_visibility",
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"sender": "@resident_user_0:test.com",
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"state_key": "",
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"room_id": TEST_ROOM_ID,
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"content": {"history_visibility": "joined"},
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})
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room_state.append(history_visibility_evt)
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test_store.add_event(history_visibility_evt)
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for i in range(0, 100000):
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user = "@resident_user_%i:test.com" % (i, )
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evt = FrozenEvent({
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"event_id": "$res_event_%i" % (i, ),
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"type": "m.room.member",
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"state_key": user,
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"sender": user,
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"room_id": TEST_ROOM_ID,
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"content": {
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"membership": "join",
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"extra": "zzz,"
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},
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})
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room_state.append(evt)
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test_store.add_event(evt)
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events_to_filter = []
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for i in range(0, 10):
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user = "@user%i:%s" % (
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i, "test_server" if i == 5 else "other_server"
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)
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evt = FrozenEvent({
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"event_id": "$evt%i" % (i, ),
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"type": "m.room.member",
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"state_key": user,
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"sender": user,
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"room_id": TEST_ROOM_ID,
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"content": {
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"membership": "join",
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"extra": "zzz",
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},
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})
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events_to_filter.append(evt)
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room_state.append(evt)
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test_store.add_event(evt)
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test_store.set_state_ids_for_event(evt, {
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(e.type, e.state_key): e.event_id for e in room_state
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})
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pr = cProfile.Profile()
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pr.enable()
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logger.info("Starting filtering")
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start = time.time()
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filtered = yield filter_events_for_server(
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test_store, "test_server", events_to_filter,
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)
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logger.info("Filtering took %f seconds", time.time() - start)
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pr.disable()
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with open("filter_events_for_server.profile", "w+") as f:
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ps = pstats.Stats(pr, stream=f).sort_stats('cumulative')
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ps.print_stats()
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# the result should be 5 redacted events, and 5 unredacted events.
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for i in range(0, 5):
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self.assertEqual(events_to_filter[i].event_id, filtered[i].event_id)
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self.assertNotIn("extra", filtered[i].content)
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for i in range(5, 10):
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self.assertEqual(events_to_filter[i].event_id, filtered[i].event_id)
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self.assertEqual(filtered[i].content["extra"], "zzz")
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test_large_room.skip = "Disabled by default because it's slow"
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class _TestStore(object):
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"""Implements a few methods of the DataStore, so that we can test
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filter_events_for_server
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"""
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def __init__(self):
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# data for get_events: a map from event_id to event
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self.events = {}
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# data for get_state_ids_for_events mock: a map from event_id to
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# a map from (type_state_key) -> event_id for the state at that
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# event
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self.state_ids_for_events = {}
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def add_event(self, event):
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self.events[event.event_id] = event
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def set_state_ids_for_event(self, event, state):
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self.state_ids_for_events[event.event_id] = state
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def get_state_ids_for_events(self, events, types):
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res = {}
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include_memberships = False
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for (type, state_key) in types:
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if type == "m.room.history_visibility":
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continue
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if type != "m.room.member" or state_key is not None:
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raise RuntimeError(
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"Unimplemented: get_state_ids with type (%s, %s)" %
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(type, state_key),
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)
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include_memberships = True
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if include_memberships:
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for event_id in events:
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res[event_id] = self.state_ids_for_events[event_id]
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else:
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k = ("m.room.history_visibility", "")
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for event_id in events:
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hve = self.state_ids_for_events[event_id][k]
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res[event_id] = {k: hve}
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return succeed(res)
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def get_events(self, events):
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return succeed({
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event_id: self.events[event_id] for event_id in events
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})
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def are_users_erased(self, users):
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return succeed({u: False for u in users})
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