334 lines
12 KiB
Python
334 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2020 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from mock import patch
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from synapse.api.room_versions import RoomVersion
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from synapse.rest import admin
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from synapse.rest.client.v1 import login, room
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from synapse.rest.client.v2_alpha import sync
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from tests.replication._base import BaseMultiWorkerStreamTestCase
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from tests.server import make_request
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from tests.utils import USE_POSTGRES_FOR_TESTS
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logger = logging.getLogger(__name__)
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class EventPersisterShardTestCase(BaseMultiWorkerStreamTestCase):
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"""Checks event persisting sharding works
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"""
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# Event persister sharding requires postgres (due to needing
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# `MutliWriterIdGenerator`).
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if not USE_POSTGRES_FOR_TESTS:
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skip = "Requires Postgres"
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servlets = [
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admin.register_servlets_for_client_rest_resource,
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room.register_servlets,
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login.register_servlets,
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sync.register_servlets,
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]
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def prepare(self, reactor, clock, hs):
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# Register a user who sends a message that we'll get notified about
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self.other_user_id = self.register_user("otheruser", "pass")
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self.other_access_token = self.login("otheruser", "pass")
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self.room_creator = self.hs.get_room_creation_handler()
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self.store = hs.get_datastore()
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def default_config(self):
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conf = super().default_config()
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conf["redis"] = {"enabled": "true"}
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conf["stream_writers"] = {"events": ["worker1", "worker2"]}
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conf["instance_map"] = {
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"worker1": {"host": "testserv", "port": 1001},
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"worker2": {"host": "testserv", "port": 1002},
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}
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return conf
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def _create_room(self, room_id: str, user_id: str, tok: str):
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"""Create a room with given room_id
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"""
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# We control the room ID generation by patching out the
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# `_generate_room_id` method
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async def generate_room(
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creator_id: str, is_public: bool, room_version: RoomVersion
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):
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await self.store.store_room(
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room_id=room_id,
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room_creator_user_id=creator_id,
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is_public=is_public,
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room_version=room_version,
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)
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return room_id
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with patch(
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"synapse.handlers.room.RoomCreationHandler._generate_room_id"
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) as mock:
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mock.side_effect = generate_room
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self.helper.create_room_as(user_id, tok=tok)
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def test_basic(self):
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"""Simple test to ensure that multiple rooms can be created and joined,
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and that different rooms get handled by different instances.
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"""
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self.make_worker_hs(
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"synapse.app.generic_worker", {"worker_name": "worker1"},
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)
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self.make_worker_hs(
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"synapse.app.generic_worker", {"worker_name": "worker2"},
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)
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persisted_on_1 = False
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persisted_on_2 = False
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store = self.hs.get_datastore()
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user_id = self.register_user("user", "pass")
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access_token = self.login("user", "pass")
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# Keep making new rooms until we see rooms being persisted on both
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# workers.
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for _ in range(10):
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# Create a room
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room = self.helper.create_room_as(user_id, tok=access_token)
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# The other user joins
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self.helper.join(
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room=room, user=self.other_user_id, tok=self.other_access_token
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)
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# The other user sends some messages
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rseponse = self.helper.send(room, body="Hi!", tok=self.other_access_token)
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event_id = rseponse["event_id"]
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# The event position includes which instance persisted the event.
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pos = self.get_success(store.get_position_for_event(event_id))
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persisted_on_1 |= pos.instance_name == "worker1"
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persisted_on_2 |= pos.instance_name == "worker2"
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if persisted_on_1 and persisted_on_2:
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break
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self.assertTrue(persisted_on_1)
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self.assertTrue(persisted_on_2)
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def test_vector_clock_token(self):
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"""Tests that using a stream token with a vector clock component works
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correctly with basic /sync and /messages usage.
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"""
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self.make_worker_hs(
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"synapse.app.generic_worker", {"worker_name": "worker1"},
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)
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worker_hs2 = self.make_worker_hs(
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"synapse.app.generic_worker", {"worker_name": "worker2"},
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)
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sync_hs = self.make_worker_hs(
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"synapse.app.generic_worker", {"worker_name": "sync"},
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)
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sync_hs_site = self._hs_to_site[sync_hs]
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# Specially selected room IDs that get persisted on different workers.
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room_id1 = "!foo:test"
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room_id2 = "!baz:test"
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self.assertEqual(
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self.hs.config.worker.events_shard_config.get_instance(room_id1), "worker1"
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)
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self.assertEqual(
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self.hs.config.worker.events_shard_config.get_instance(room_id2), "worker2"
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)
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user_id = self.register_user("user", "pass")
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access_token = self.login("user", "pass")
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store = self.hs.get_datastore()
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# Create two room on the different workers.
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self._create_room(room_id1, user_id, access_token)
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self._create_room(room_id2, user_id, access_token)
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# The other user joins
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self.helper.join(
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room=room_id1, user=self.other_user_id, tok=self.other_access_token
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)
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self.helper.join(
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room=room_id2, user=self.other_user_id, tok=self.other_access_token
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)
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# Do an initial sync so that we're up to date.
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channel = make_request(
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self.reactor, sync_hs_site, "GET", "/sync", access_token=access_token
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)
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next_batch = channel.json_body["next_batch"]
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# We now gut wrench into the events stream MultiWriterIdGenerator on
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# worker2 to mimic it getting stuck persisting an event. This ensures
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# that when we send an event on worker1 we end up in a state where
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# worker2 events stream position lags that on worker1, resulting in a
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# RoomStreamToken with a non-empty instance map component.
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#
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# Worker2's event stream position will not advance until we call
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# __aexit__ again.
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actx = worker_hs2.get_datastore()._stream_id_gen.get_next()
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self.get_success(actx.__aenter__())
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response = self.helper.send(room_id1, body="Hi!", tok=self.other_access_token)
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first_event_in_room1 = response["event_id"]
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# Assert that the current stream token has an instance map component, as
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# we are trying to test vector clock tokens.
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room_stream_token = store.get_room_max_token()
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self.assertNotEqual(len(room_stream_token.instance_map), 0)
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# Check that syncing still gets the new event, despite the gap in the
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# stream IDs.
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/sync?since={}".format(next_batch),
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access_token=access_token,
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)
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# We should only see the new event and nothing else
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self.assertIn(room_id1, channel.json_body["rooms"]["join"])
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self.assertNotIn(room_id2, channel.json_body["rooms"]["join"])
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events = channel.json_body["rooms"]["join"][room_id1]["timeline"]["events"]
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self.assertListEqual(
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[first_event_in_room1], [event["event_id"] for event in events]
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)
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# Get the next batch and makes sure its a vector clock style token.
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vector_clock_token = channel.json_body["next_batch"]
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self.assertTrue(vector_clock_token.startswith("m"))
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# Now that we've got a vector clock token we finish the fake persisting
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# an event we started above.
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self.get_success(actx.__aexit__(None, None, None))
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# Now try and send an event to the other rooom so that we can test that
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# the vector clock style token works as a `since` token.
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response = self.helper.send(room_id2, body="Hi!", tok=self.other_access_token)
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first_event_in_room2 = response["event_id"]
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/sync?since={}".format(vector_clock_token),
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access_token=access_token,
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)
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self.assertNotIn(room_id1, channel.json_body["rooms"]["join"])
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self.assertIn(room_id2, channel.json_body["rooms"]["join"])
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events = channel.json_body["rooms"]["join"][room_id2]["timeline"]["events"]
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self.assertListEqual(
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[first_event_in_room2], [event["event_id"] for event in events]
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)
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next_batch = channel.json_body["next_batch"]
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# We also want to test that the vector clock style token works with
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# pagination. We do this by sending a couple of new events into the room
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# and syncing again to get a prev_batch token for each room, then
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# paginating from there back to the vector clock token.
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self.helper.send(room_id1, body="Hi again!", tok=self.other_access_token)
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self.helper.send(room_id2, body="Hi again!", tok=self.other_access_token)
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/sync?since={}".format(next_batch),
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access_token=access_token,
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)
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prev_batch1 = channel.json_body["rooms"]["join"][room_id1]["timeline"][
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"prev_batch"
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]
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prev_batch2 = channel.json_body["rooms"]["join"][room_id2]["timeline"][
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"prev_batch"
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]
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# Paginating back in the first room should not produce any results, as
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# no events have happened in it. This tests that we are correctly
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# filtering results based on the vector clock portion.
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/rooms/{}/messages?from={}&to={}&dir=b".format(
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room_id1, prev_batch1, vector_clock_token
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),
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access_token=access_token,
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)
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self.assertListEqual([], channel.json_body["chunk"])
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# Paginating back on the second room should produce the first event
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# again. This tests that pagination isn't completely broken.
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/rooms/{}/messages?from={}&to={}&dir=b".format(
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room_id2, prev_batch2, vector_clock_token
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),
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access_token=access_token,
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)
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self.assertEqual(len(channel.json_body["chunk"]), 1)
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self.assertEqual(
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channel.json_body["chunk"][0]["event_id"], first_event_in_room2
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)
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# Paginating forwards should give the same results
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/rooms/{}/messages?from={}&to={}&dir=f".format(
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room_id1, vector_clock_token, prev_batch1
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),
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access_token=access_token,
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)
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self.assertListEqual([], channel.json_body["chunk"])
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channel = make_request(
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self.reactor,
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sync_hs_site,
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"GET",
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"/rooms/{}/messages?from={}&to={}&dir=f".format(
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room_id2, vector_clock_token, prev_batch2,
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),
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access_token=access_token,
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)
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self.assertEqual(len(channel.json_body["chunk"]), 1)
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self.assertEqual(
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channel.json_body["chunk"][0]["event_id"], first_event_in_room2
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)
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