mirror of
https://mau.dev/maunium/synapse.git
synced 2024-09-06 01:22:16 +00:00
364 lines
14 KiB
Python
364 lines
14 KiB
Python
# Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from typing import Callable, List, Tuple
|
|
from unittest.mock import Mock, call
|
|
|
|
from twisted.internet import defer
|
|
from twisted.internet.defer import CancelledError, Deferred
|
|
from twisted.test.proto_helpers import MemoryReactor
|
|
|
|
from synapse.server import HomeServer
|
|
from synapse.storage.database import (
|
|
DatabasePool,
|
|
LoggingDatabaseConnection,
|
|
LoggingTransaction,
|
|
make_tuple_comparison_clause,
|
|
)
|
|
from synapse.util import Clock
|
|
|
|
from tests import unittest
|
|
from tests.utils import USE_POSTGRES_FOR_TESTS
|
|
|
|
|
|
class TupleComparisonClauseTestCase(unittest.TestCase):
|
|
def test_native_tuple_comparison(self) -> None:
|
|
clause, args = make_tuple_comparison_clause([("a", 1), ("b", 2)])
|
|
self.assertEqual(clause, "(a,b) > (?,?)")
|
|
self.assertEqual(args, [1, 2])
|
|
|
|
|
|
class ExecuteScriptTestCase(unittest.HomeserverTestCase):
|
|
"""Tests for `BaseDatabaseEngine.executescript` implementations."""
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.store = hs.get_datastores().main
|
|
self.db_pool: DatabasePool = self.store.db_pool
|
|
self.get_success(
|
|
self.db_pool.runInteraction(
|
|
"create",
|
|
lambda txn: txn.execute("CREATE TABLE foo (name TEXT PRIMARY KEY)"),
|
|
)
|
|
)
|
|
|
|
def test_transaction(self) -> None:
|
|
"""Test that all statements are run in a single transaction."""
|
|
|
|
def run(conn: LoggingDatabaseConnection) -> None:
|
|
cur = conn.cursor(txn_name="test_transaction")
|
|
self.db_pool.engine.executescript(
|
|
cur,
|
|
";".join(
|
|
[
|
|
"INSERT INTO foo (name) VALUES ('transaction test')",
|
|
# This next statement will fail. When `executescript` is not
|
|
# transactional, the previous row will be observed later.
|
|
"INSERT INTO foo (name) VALUES ('transaction test')",
|
|
]
|
|
),
|
|
)
|
|
|
|
self.get_failure(
|
|
self.db_pool.runWithConnection(run),
|
|
self.db_pool.engine.module.IntegrityError,
|
|
)
|
|
|
|
self.assertIsNone(
|
|
self.get_success(
|
|
self.db_pool.simple_select_one_onecol(
|
|
"foo",
|
|
keyvalues={"name": "transaction test"},
|
|
retcol="name",
|
|
allow_none=True,
|
|
)
|
|
),
|
|
"executescript is not running statements inside a transaction",
|
|
)
|
|
|
|
def test_commit(self) -> None:
|
|
"""Test that the script transaction remains open and can be committed."""
|
|
|
|
def run(conn: LoggingDatabaseConnection) -> None:
|
|
cur = conn.cursor(txn_name="test_commit")
|
|
self.db_pool.engine.executescript(
|
|
cur, "INSERT INTO foo (name) VALUES ('commit test')"
|
|
)
|
|
cur.execute("COMMIT")
|
|
|
|
self.get_success(self.db_pool.runWithConnection(run))
|
|
|
|
self.assertIsNotNone(
|
|
self.get_success(
|
|
self.db_pool.simple_select_one_onecol(
|
|
"foo",
|
|
keyvalues={"name": "commit test"},
|
|
retcol="name",
|
|
allow_none=True,
|
|
)
|
|
),
|
|
)
|
|
|
|
def test_rollback(self) -> None:
|
|
"""Test that the script transaction remains open and can be rolled back."""
|
|
|
|
def run(conn: LoggingDatabaseConnection) -> None:
|
|
cur = conn.cursor(txn_name="test_rollback")
|
|
self.db_pool.engine.executescript(
|
|
cur, "INSERT INTO foo (name) VALUES ('rollback test')"
|
|
)
|
|
cur.execute("ROLLBACK")
|
|
|
|
self.get_success(self.db_pool.runWithConnection(run))
|
|
|
|
self.assertIsNone(
|
|
self.get_success(
|
|
self.db_pool.simple_select_one_onecol(
|
|
"foo",
|
|
keyvalues={"name": "rollback test"},
|
|
retcol="name",
|
|
allow_none=True,
|
|
)
|
|
),
|
|
"executescript is not leaving the script transaction open",
|
|
)
|
|
|
|
|
|
class CallbacksTestCase(unittest.HomeserverTestCase):
|
|
"""Tests for transaction callbacks."""
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.store = hs.get_datastores().main
|
|
self.db_pool: DatabasePool = self.store.db_pool
|
|
|
|
def _run_interaction(
|
|
self, func: Callable[[LoggingTransaction], object]
|
|
) -> Tuple[Mock, Mock]:
|
|
"""Run the given function in a database transaction, with callbacks registered.
|
|
|
|
Args:
|
|
func: The function to be run in a transaction. The transaction will be
|
|
retried if `func` raises an `OperationalError`.
|
|
|
|
Returns:
|
|
Two mocks, which were registered as an `after_callback` and an
|
|
`exception_callback` respectively, on every transaction attempt.
|
|
"""
|
|
after_callback = Mock()
|
|
exception_callback = Mock()
|
|
|
|
def _test_txn(txn: LoggingTransaction) -> None:
|
|
txn.call_after(after_callback, 123, 456, extra=789)
|
|
txn.call_on_exception(exception_callback, 987, 654, extra=321)
|
|
func(txn)
|
|
|
|
try:
|
|
self.get_success_or_raise(
|
|
self.db_pool.runInteraction("test_transaction", _test_txn)
|
|
)
|
|
except Exception:
|
|
pass
|
|
|
|
return after_callback, exception_callback
|
|
|
|
def test_after_callback(self) -> None:
|
|
"""Test that the after callback is called when a transaction succeeds."""
|
|
after_callback, exception_callback = self._run_interaction(lambda txn: None)
|
|
|
|
after_callback.assert_called_once_with(123, 456, extra=789)
|
|
exception_callback.assert_not_called()
|
|
|
|
def test_exception_callback(self) -> None:
|
|
"""Test that the exception callback is called when a transaction fails."""
|
|
_test_txn = Mock(side_effect=ZeroDivisionError)
|
|
after_callback, exception_callback = self._run_interaction(_test_txn)
|
|
|
|
after_callback.assert_not_called()
|
|
exception_callback.assert_called_once_with(987, 654, extra=321)
|
|
|
|
def test_failed_retry(self) -> None:
|
|
"""Test that the exception callback is called for every failed attempt."""
|
|
# Always raise an `OperationalError`.
|
|
_test_txn = Mock(side_effect=self.db_pool.engine.module.OperationalError)
|
|
after_callback, exception_callback = self._run_interaction(_test_txn)
|
|
|
|
after_callback.assert_not_called()
|
|
exception_callback.assert_has_calls(
|
|
[
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
]
|
|
)
|
|
self.assertEqual(exception_callback.call_count, 6) # no additional calls
|
|
|
|
def test_successful_retry(self) -> None:
|
|
"""Test callbacks for a failed transaction followed by a successful attempt."""
|
|
# Raise an `OperationalError` on the first attempt only.
|
|
_test_txn = Mock(
|
|
side_effect=[self.db_pool.engine.module.OperationalError, None]
|
|
)
|
|
after_callback, exception_callback = self._run_interaction(_test_txn)
|
|
|
|
# Calling both `after_callback`s when the first attempt failed is rather
|
|
# surprising (https://github.com/matrix-org/synapse/issues/12184).
|
|
# Let's document the behaviour in a test.
|
|
after_callback.assert_has_calls(
|
|
[
|
|
call(123, 456, extra=789),
|
|
call(123, 456, extra=789),
|
|
]
|
|
)
|
|
self.assertEqual(after_callback.call_count, 2) # no additional calls
|
|
exception_callback.assert_not_called()
|
|
|
|
|
|
class CancellationTestCase(unittest.HomeserverTestCase):
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.store = hs.get_datastores().main
|
|
self.db_pool: DatabasePool = self.store.db_pool
|
|
|
|
def test_after_callback(self) -> None:
|
|
"""Test that the after callback is called when a transaction succeeds."""
|
|
d: "Deferred[None]"
|
|
after_callback = Mock()
|
|
exception_callback = Mock()
|
|
|
|
def _test_txn(txn: LoggingTransaction) -> None:
|
|
txn.call_after(after_callback, 123, 456, extra=789)
|
|
txn.call_on_exception(exception_callback, 987, 654, extra=321)
|
|
d.cancel()
|
|
|
|
d = defer.ensureDeferred(
|
|
self.db_pool.runInteraction("test_transaction", _test_txn)
|
|
)
|
|
self.get_failure(d, CancelledError)
|
|
|
|
after_callback.assert_called_once_with(123, 456, extra=789)
|
|
exception_callback.assert_not_called()
|
|
|
|
def test_exception_callback(self) -> None:
|
|
"""Test that the exception callback is called when a transaction fails."""
|
|
d: "Deferred[None]"
|
|
after_callback = Mock()
|
|
exception_callback = Mock()
|
|
|
|
def _test_txn(txn: LoggingTransaction) -> None:
|
|
txn.call_after(after_callback, 123, 456, extra=789)
|
|
txn.call_on_exception(exception_callback, 987, 654, extra=321)
|
|
d.cancel()
|
|
# Simulate a retryable failure on every attempt.
|
|
raise self.db_pool.engine.module.OperationalError()
|
|
|
|
d = defer.ensureDeferred(
|
|
self.db_pool.runInteraction("test_transaction", _test_txn)
|
|
)
|
|
self.get_failure(d, CancelledError)
|
|
|
|
after_callback.assert_not_called()
|
|
exception_callback.assert_has_calls(
|
|
[
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
call(987, 654, extra=321),
|
|
]
|
|
)
|
|
self.assertEqual(exception_callback.call_count, 6) # no additional calls
|
|
|
|
|
|
class PostgresReplicaIdentityTestCase(unittest.HomeserverTestCase):
|
|
if not USE_POSTGRES_FOR_TESTS:
|
|
skip = "Requires Postgres"
|
|
|
|
def prepare(
|
|
self, reactor: MemoryReactor, clock: Clock, homeserver: HomeServer
|
|
) -> None:
|
|
self.db_pools = homeserver.get_datastores().databases
|
|
|
|
def test_all_tables_have_postgres_replica_identity(self) -> None:
|
|
"""
|
|
Tests that all tables have a Postgres REPLICA IDENTITY.
|
|
(See https://github.com/matrix-org/synapse/issues/16224).
|
|
|
|
Tables with a PRIMARY KEY have an implied REPLICA IDENTITY and are fine.
|
|
Other tables need them to be set with `ALTER TABLE`.
|
|
|
|
A REPLICA IDENTITY is required for Postgres logical replication to work
|
|
properly without blocking updates and deletes.
|
|
"""
|
|
|
|
sql = """
|
|
-- Select tables that have no primary key and use the default replica identity rule
|
|
-- (the default is to use the primary key)
|
|
WITH tables_no_pkey AS (
|
|
SELECT tbl.table_schema, tbl.table_name
|
|
FROM information_schema.tables tbl
|
|
WHERE table_type = 'BASE TABLE'
|
|
AND table_schema not in ('pg_catalog', 'information_schema')
|
|
AND NOT EXISTS (
|
|
SELECT 1
|
|
FROM information_schema.key_column_usage kcu
|
|
WHERE kcu.table_name = tbl.table_name
|
|
AND kcu.table_schema = tbl.table_schema
|
|
)
|
|
)
|
|
SELECT pg_class.oid::regclass FROM tables_no_pkey INNER JOIN pg_class ON pg_class.oid::regclass = table_name::regclass
|
|
WHERE relreplident = 'd'
|
|
|
|
UNION
|
|
|
|
-- Also select tables that use an index as a replica identity
|
|
-- but where the index doesn't exist
|
|
-- (e.g. it could have been deleted)
|
|
SELECT pg_class.oid::regclass
|
|
FROM information_schema.tables tbl
|
|
INNER JOIN pg_class ON pg_class.oid::regclass = table_name::regclass
|
|
WHERE table_type = 'BASE TABLE'
|
|
AND table_schema not in ('pg_catalog', 'information_schema')
|
|
|
|
-- 'i' means an index is used as the replica identity
|
|
AND relreplident = 'i'
|
|
|
|
-- look for indices that are marked as the replica identity
|
|
AND NOT EXISTS (
|
|
SELECT indexrelid::regclass
|
|
FROM pg_index
|
|
WHERE indrelid = pg_class.oid::regclass AND indisreplident
|
|
)
|
|
"""
|
|
|
|
def _list_tables_with_missing_replica_identities_txn(
|
|
txn: LoggingTransaction,
|
|
) -> List[str]:
|
|
txn.execute(sql)
|
|
return [table_name for table_name, in txn]
|
|
|
|
for pool in self.db_pools:
|
|
missing = self.get_success(
|
|
pool.runInteraction(
|
|
"test_list_missing_replica_identities",
|
|
_list_tables_with_missing_replica_identities_txn,
|
|
)
|
|
)
|
|
self.assertEqual(
|
|
len(missing),
|
|
0,
|
|
f"The following tables in the {pool.name()!r} database are missing REPLICA IDENTITIES: {missing!r}.",
|
|
)
|