From d08ef6f155971717d2c6dbd78c89312afd4d84fa Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Mon, 29 Nov 2021 16:57:06 +0000 Subject: Make background updates controllable via a plugin (#11306) Co-authored-by: Brendan Abolivier --- tests/storage/test_background_update.py | 104 ++++++++++++++++++++++++++++---- tests/storage/test_event_chain.py | 4 +- tests/storage/test_user_directory.py | 5 +- 3 files changed, 97 insertions(+), 16 deletions(-) (limited to 'tests/storage') diff --git a/tests/storage/test_background_update.py b/tests/storage/test_background_update.py index a5f5ebad41..216d816d56 100644 --- a/tests/storage/test_background_update.py +++ b/tests/storage/test_background_update.py @@ -1,8 +1,11 @@ -from unittest.mock import Mock +from mock import Mock + +from twisted.internet.defer import Deferred, ensureDeferred from synapse.storage.background_updates import BackgroundUpdater from tests import unittest +from tests.test_utils import make_awaitable class BackgroundUpdateTestCase(unittest.HomeserverTestCase): @@ -20,10 +23,10 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase): def test_do_background_update(self): # the time we claim it takes to update one item when running the update - duration_ms = 4200 + duration_ms = 10 # the target runtime for each bg update - target_background_update_duration_ms = 5000000 + target_background_update_duration_ms = 100 store = self.hs.get_datastore() self.get_success( @@ -48,10 +51,8 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase): self.update_handler.side_effect = update self.update_handler.reset_mock() res = self.get_success( - self.updates.do_next_background_update( - target_background_update_duration_ms - ), - by=0.1, + self.updates.do_next_background_update(False), + by=0.01, ) self.assertFalse(res) @@ -74,16 +75,93 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase): self.update_handler.side_effect = update self.update_handler.reset_mock() - result = self.get_success( - self.updates.do_next_background_update(target_background_update_duration_ms) - ) + result = self.get_success(self.updates.do_next_background_update(False)) self.assertFalse(result) self.update_handler.assert_called_once() # third step: we don't expect to be called any more self.update_handler.reset_mock() - result = self.get_success( - self.updates.do_next_background_update(target_background_update_duration_ms) - ) + result = self.get_success(self.updates.do_next_background_update(False)) self.assertTrue(result) self.assertFalse(self.update_handler.called) + + +class BackgroundUpdateControllerTestCase(unittest.HomeserverTestCase): + def prepare(self, reactor, clock, homeserver): + self.updates: BackgroundUpdater = self.hs.get_datastore().db_pool.updates + # the base test class should have run the real bg updates for us + self.assertTrue( + self.get_success(self.updates.has_completed_background_updates()) + ) + + self.update_deferred = Deferred() + self.update_handler = Mock(return_value=self.update_deferred) + self.updates.register_background_update_handler( + "test_update", self.update_handler + ) + + # Mock out the AsyncContextManager + self._update_ctx_manager = Mock(spec=["__aenter__", "__aexit__"]) + self._update_ctx_manager.__aenter__ = Mock( + return_value=make_awaitable(None), + ) + self._update_ctx_manager.__aexit__ = Mock(return_value=make_awaitable(None)) + + # Mock out the `update_handler` callback + self._on_update = Mock(return_value=self._update_ctx_manager) + + # Define a default batch size value that's not the same as the internal default + # value (100). + self._default_batch_size = 500 + + # Register the callbacks with more mocks + self.hs.get_module_api().register_background_update_controller_callbacks( + on_update=self._on_update, + min_batch_size=Mock(return_value=make_awaitable(self._default_batch_size)), + default_batch_size=Mock( + return_value=make_awaitable(self._default_batch_size), + ), + ) + + def test_controller(self): + store = self.hs.get_datastore() + self.get_success( + store.db_pool.simple_insert( + "background_updates", + values={"update_name": "test_update", "progress_json": "{}"}, + ) + ) + + # Set the return value for the context manager. + enter_defer = Deferred() + self._update_ctx_manager.__aenter__ = Mock(return_value=enter_defer) + + # Start the background update. + do_update_d = ensureDeferred(self.updates.do_next_background_update(True)) + + self.pump() + + # `run_update` should have been called, but the update handler won't be + # called until the `enter_defer` (returned by `__aenter__`) is resolved. + self._on_update.assert_called_once_with( + "test_update", + "master", + False, + ) + self.assertFalse(do_update_d.called) + self.assertFalse(self.update_deferred.called) + + # Resolving the `enter_defer` should call the update handler, which then + # blocks. + enter_defer.callback(100) + self.pump() + self.update_handler.assert_called_once_with({}, self._default_batch_size) + self.assertFalse(self.update_deferred.called) + self._update_ctx_manager.__aexit__.assert_not_called() + + # Resolving the update handler deferred should cause the + # `do_next_background_update` to finish and return + self.update_deferred.callback(100) + self.pump() + self._update_ctx_manager.__aexit__.assert_called() + self.get_success(do_update_d) diff --git a/tests/storage/test_event_chain.py b/tests/storage/test_event_chain.py index b31c5eb5ec..7b7f6c349e 100644 --- a/tests/storage/test_event_chain.py +++ b/tests/storage/test_event_chain.py @@ -664,7 +664,7 @@ class EventChainBackgroundUpdateTestCase(HomeserverTestCase): ): iterations += 1 self.get_success( - self.store.db_pool.updates.do_next_background_update(100), by=0.1 + self.store.db_pool.updates.do_next_background_update(False), by=0.1 ) # Ensure that we did actually take multiple iterations to process the @@ -723,7 +723,7 @@ class EventChainBackgroundUpdateTestCase(HomeserverTestCase): ): iterations += 1 self.get_success( - self.store.db_pool.updates.do_next_background_update(100), by=0.1 + self.store.db_pool.updates.do_next_background_update(False), by=0.1 ) # Ensure that we did actually take multiple iterations to process the diff --git a/tests/storage/test_user_directory.py b/tests/storage/test_user_directory.py index 37cf7bb232..7f5b28aed8 100644 --- a/tests/storage/test_user_directory.py +++ b/tests/storage/test_user_directory.py @@ -23,6 +23,7 @@ from synapse.rest import admin from synapse.rest.client import login, register, room from synapse.server import HomeServer from synapse.storage import DataStore +from synapse.storage.background_updates import _BackgroundUpdateHandler from synapse.storage.roommember import ProfileInfo from synapse.util import Clock @@ -391,7 +392,9 @@ class UserDirectoryInitialPopulationTestcase(HomeserverTestCase): with mock.patch.dict( self.store.db_pool.updates._background_update_handlers, - populate_user_directory_process_users=mocked_process_users, + populate_user_directory_process_users=_BackgroundUpdateHandler( + mocked_process_users, + ), ): self._purge_and_rebuild_user_dir() -- cgit 1.4.1