Reduce the number of tests using TCP replication. (#13543)

Uses Redis replication in additional test cases (instead of
TCP replication). A small step towards dropping TCP replication.
This commit is contained in:
Patrick Cloke 2022-08-19 08:25:24 -04:00 committed by GitHub
parent 3a245f6cfe
commit f3fba4914d
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6 changed files with 36 additions and 77 deletions

1
changelog.d/13543.misc Normal file
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@ -0,0 +1 @@
Reduce the number of tests using legacy TCP replication.

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@ -14,7 +14,7 @@ from synapse.server import HomeServer
from synapse.types import UserID, create_requester
from synapse.util import Clock
from tests.replication._base import RedisMultiWorkerStreamTestCase
from tests.replication._base import BaseMultiWorkerStreamTestCase
from tests.server import make_request
from tests.test_utils import make_awaitable
from tests.unittest import FederatingHomeserverTestCase, override_config
@ -216,7 +216,7 @@ class TestJoinsLimitedByPerRoomRateLimiter(FederatingHomeserverTestCase):
# - trying to remote-join again.
class TestReplicatedJoinsLimitedByPerRoomRateLimiter(RedisMultiWorkerStreamTestCase):
class TestReplicatedJoinsLimitedByPerRoomRateLimiter(BaseMultiWorkerStreamTestCase):
servlets = [
synapse.rest.admin.register_servlets,
synapse.rest.client.login.register_servlets,

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@ -30,7 +30,6 @@ from tests.replication._base import BaseMultiWorkerStreamTestCase
from tests.test_utils import simple_async_mock
from tests.test_utils.event_injection import inject_member_event
from tests.unittest import HomeserverTestCase, override_config
from tests.utils import USE_POSTGRES_FOR_TESTS
class ModuleApiTestCase(HomeserverTestCase):
@ -738,11 +737,6 @@ class ModuleApiTestCase(HomeserverTestCase):
class ModuleApiWorkerTestCase(BaseMultiWorkerStreamTestCase):
"""For testing ModuleApi functionality in a multi-worker setup"""
# Testing stream ID replication from the main to worker processes requires postgres
# (due to needing `MultiWriterIdGenerator`).
if not USE_POSTGRES_FOR_TESTS:
skip = "Requires Postgres"
servlets = [
admin.register_servlets,
login.register_servlets,
@ -752,7 +746,6 @@ class ModuleApiWorkerTestCase(BaseMultiWorkerStreamTestCase):
def default_config(self):
conf = super().default_config()
conf["redis"] = {"enabled": "true"}
conf["stream_writers"] = {"presence": ["presence_writer"]}
conf["instance_map"] = {
"presence_writer": {"host": "testserv", "port": 1001},

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@ -24,11 +24,11 @@ from synapse.http.site import SynapseRequest, SynapseSite
from synapse.replication.http import ReplicationRestResource
from synapse.replication.tcp.client import ReplicationDataHandler
from synapse.replication.tcp.handler import ReplicationCommandHandler
from synapse.replication.tcp.protocol import ClientReplicationStreamProtocol
from synapse.replication.tcp.resource import (
ReplicationStreamProtocolFactory,
from synapse.replication.tcp.protocol import (
ClientReplicationStreamProtocol,
ServerReplicationStreamProtocol,
)
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from synapse.server import HomeServer
from tests import unittest
@ -220,15 +220,34 @@ class BaseStreamTestCase(unittest.HomeserverTestCase):
class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
"""Base class for tests running multiple workers.
Enables Redis, providing a fake Redis server.
Automatically handle HTTP replication requests from workers to master,
unlike `BaseStreamTestCase`.
"""
if not hiredis:
skip = "Requires hiredis"
if not USE_POSTGRES_FOR_TESTS:
# Redis replication only takes place on Postgres
skip = "Requires Postgres"
def default_config(self) -> Dict[str, Any]:
"""
Overrides the default config to enable Redis.
Even if the test only uses make_worker_hs, the main process needs Redis
enabled otherwise it won't create a Fake Redis server to listen on the
Redis port and accept fake TCP connections.
"""
base = super().default_config()
base["redis"] = {"enabled": True}
return base
def setUp(self):
super().setUp()
# build a replication server
self.server_factory = ReplicationStreamProtocolFactory(self.hs)
self.streamer = self.hs.get_replication_streamer()
# Fake in memory Redis server that servers can connect to.
@ -247,15 +266,14 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
# handling inbound HTTP requests to that instance.
self._hs_to_site = {self.hs: self.site}
if self.hs.config.redis.redis_enabled:
# Handle attempts to connect to fake redis server.
self.reactor.add_tcp_client_callback(
"localhost",
6379,
self.connect_any_redis_attempts,
)
# Handle attempts to connect to fake redis server.
self.reactor.add_tcp_client_callback(
"localhost",
6379,
self.connect_any_redis_attempts,
)
self.hs.get_replication_command_handler().start_replication(self.hs)
self.hs.get_replication_command_handler().start_replication(self.hs)
# When we see a connection attempt to the master replication listener we
# automatically set up the connection. This is so that tests don't
@ -339,27 +357,6 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
store = worker_hs.get_datastores().main
store.db_pool._db_pool = self.database_pool._db_pool
# Set up TCP replication between master and the new worker if we don't
# have Redis support enabled.
if not worker_hs.config.redis.redis_enabled:
repl_handler = ReplicationCommandHandler(worker_hs)
client = ClientReplicationStreamProtocol(
worker_hs,
"client",
"test",
self.clock,
repl_handler,
)
server = self.server_factory.buildProtocol(
IPv4Address("TCP", "127.0.0.1", 0)
)
client_transport = FakeTransport(server, self.reactor)
client.makeConnection(client_transport)
server_transport = FakeTransport(client, self.reactor)
server.makeConnection(server_transport)
# Set up a resource for the worker
resource = ReplicationRestResource(worker_hs)
@ -378,8 +375,7 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
reactor=self.reactor,
)
if worker_hs.config.redis.redis_enabled:
worker_hs.get_replication_command_handler().start_replication(worker_hs)
worker_hs.get_replication_command_handler().start_replication(worker_hs)
return worker_hs
@ -582,27 +578,3 @@ class FakeRedisPubSubProtocol(Protocol):
def connectionLost(self, reason):
self._server.remove_subscriber(self)
class RedisMultiWorkerStreamTestCase(BaseMultiWorkerStreamTestCase):
"""
A test case that enables Redis, providing a fake Redis server.
"""
if not hiredis:
skip = "Requires hiredis"
if not USE_POSTGRES_FOR_TESTS:
# Redis replication only takes place on Postgres
skip = "Requires Postgres"
def default_config(self) -> Dict[str, Any]:
"""
Overrides the default config to enable Redis.
Even if the test only uses make_worker_hs, the main process needs Redis
enabled otherwise it won't create a Fake Redis server to listen on the
Redis port and accept fake TCP connections.
"""
base = super().default_config()
base["redis"] = {"enabled": True}
return base

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@ -12,10 +12,10 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from tests.replication._base import RedisMultiWorkerStreamTestCase
from tests.replication._base import BaseMultiWorkerStreamTestCase
class ChannelsTestCase(RedisMultiWorkerStreamTestCase):
class ChannelsTestCase(BaseMultiWorkerStreamTestCase):
def test_subscribed_to_enough_redis_channels(self) -> None:
# The default main process is subscribed to the USER_IP channel.
self.assertCountEqual(

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@ -20,7 +20,6 @@ from synapse.storage.util.id_generators import MultiWriterIdGenerator
from tests.replication._base import BaseMultiWorkerStreamTestCase
from tests.server import make_request
from tests.utils import USE_POSTGRES_FOR_TESTS
logger = logging.getLogger(__name__)
@ -28,11 +27,6 @@ logger = logging.getLogger(__name__)
class EventPersisterShardTestCase(BaseMultiWorkerStreamTestCase):
"""Checks event persisting sharding works"""
# Event persister sharding requires postgres (due to needing
# `MultiWriterIdGenerator`).
if not USE_POSTGRES_FOR_TESTS:
skip = "Requires Postgres"
servlets = [
admin.register_servlets_for_client_rest_resource,
room.register_servlets,
@ -50,7 +44,6 @@ class EventPersisterShardTestCase(BaseMultiWorkerStreamTestCase):
def default_config(self):
conf = super().default_config()
conf["redis"] = {"enabled": "true"}
conf["stream_writers"] = {"events": ["worker1", "worker2"]}
conf["instance_map"] = {
"worker1": {"host": "testserv", "port": 1001},