diff options
| -rw-r--r-- | changelog.d/6499.bugfix | 1 | ||||
| -rw-r--r-- | changelog.d/6506.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/initial_sync.py | 19 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/events.py | 23 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/events_bg_updates.py | 8 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/schema/delta/56/redaction_censor.sql | 1 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/schema/delta/56/redaction_censor2.sql | 4 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/schema/delta/56/redaction_censor4.sql | 16 | ||||
| -rw-r--r-- | synapse/util/caches/snapshot_cache.py | 94 | ||||
| -rw-r--r-- | tests/util/test_snapshot_cache.py | 63 |
10 files changed, 51 insertions, 179 deletions
diff --git a/changelog.d/6499.bugfix b/changelog.d/6499.bugfix new file mode 100644 index 0000000000..299feba0f8 --- /dev/null +++ b/changelog.d/6499.bugfix @@ -0,0 +1 @@ +Fix support for SQLite 3.7. diff --git a/changelog.d/6506.misc b/changelog.d/6506.misc new file mode 100644 index 0000000000..99d7a70bcf --- /dev/null +++ b/changelog.d/6506.misc @@ -0,0 +1 @@ +Remove `SnapshotCache` in favour of `ResponseCache`. diff --git a/synapse/handlers/initial_sync.py b/synapse/handlers/initial_sync.py index 81dce96f4b..73c110a92b 100644 --- a/synapse/handlers/initial_sync.py +++ b/synapse/handlers/initial_sync.py @@ -26,7 +26,7 @@ from synapse.streams.config import PaginationConfig from synapse.types import StreamToken, UserID from synapse.util import unwrapFirstError from synapse.util.async_helpers import concurrently_execute -from synapse.util.caches.snapshot_cache import SnapshotCache +from synapse.util.caches.response_cache import ResponseCache from synapse.visibility import filter_events_for_client from ._base import BaseHandler @@ -41,7 +41,7 @@ class InitialSyncHandler(BaseHandler): self.state = hs.get_state_handler() self.clock = hs.get_clock() self.validator = EventValidator() - self.snapshot_cache = SnapshotCache() + self.snapshot_cache = ResponseCache(hs, "initial_sync_cache") self._event_serializer = hs.get_event_client_serializer() self.storage = hs.get_storage() self.state_store = self.storage.state @@ -79,17 +79,14 @@ class InitialSyncHandler(BaseHandler): as_client_event, include_archived, ) - now_ms = self.clock.time_msec() - result = self.snapshot_cache.get(now_ms, key) - if result is not None: - return result - return self.snapshot_cache.set( - now_ms, + return self.snapshot_cache.wrap( key, - self._snapshot_all_rooms( - user_id, pagin_config, as_client_event, include_archived - ), + self._snapshot_all_rooms, + user_id, + pagin_config, + as_client_event, + include_archived, ) @defer.inlineCallbacks diff --git a/synapse/storage/data_stores/main/events.py b/synapse/storage/data_stores/main/events.py index da1529f6ea..998bba1aad 100644 --- a/synapse/storage/data_stores/main/events.py +++ b/synapse/storage/data_stores/main/events.py @@ -1039,20 +1039,25 @@ class EventsStore( }, ) - @defer.inlineCallbacks - def _censor_redactions(self): + async def _censor_redactions(self): """Censors all redactions older than the configured period that haven't been censored yet. By censor we mean update the event_json table with the redacted event. - - Returns: - Deferred """ if self.hs.config.redaction_retention_period is None: return + if not ( + await self.db.updates.has_completed_background_update( + "redactions_have_censored_ts_idx" + ) + ): + # We don't want to run this until the appropriate index has been + # created. + return + before_ts = self._clock.time_msec() - self.hs.config.redaction_retention_period # We fetch all redactions that: @@ -1074,15 +1079,15 @@ class EventsStore( LIMIT ? """ - rows = yield self.db.execute( + rows = await self.db.execute( "_censor_redactions_fetch", None, sql, before_ts, 100 ) updates = [] for redaction_id, event_id in rows: - redaction_event = yield self.get_event(redaction_id, allow_none=True) - original_event = yield self.get_event( + redaction_event = await self.get_event(redaction_id, allow_none=True) + original_event = await self.get_event( event_id, allow_rejected=True, allow_none=True ) @@ -1115,7 +1120,7 @@ class EventsStore( updatevalues={"have_censored": True}, ) - yield self.db.runInteraction("_update_censor_txn", _update_censor_txn) + await self.db.runInteraction("_update_censor_txn", _update_censor_txn) def _censor_event_txn(self, txn, event_id, pruned_json): """Censor an event by replacing its JSON in the event_json table with the diff --git a/synapse/storage/data_stores/main/events_bg_updates.py b/synapse/storage/data_stores/main/events_bg_updates.py index efee17b929..5177b71016 100644 --- a/synapse/storage/data_stores/main/events_bg_updates.py +++ b/synapse/storage/data_stores/main/events_bg_updates.py @@ -90,6 +90,14 @@ class EventsBackgroundUpdatesStore(SQLBaseStore): "event_store_labels", self._event_store_labels ) + self.db.updates.register_background_index_update( + "redactions_have_censored_ts_idx", + index_name="redactions_have_censored_ts", + table="redactions", + columns=["received_ts"], + where_clause="NOT have_censored", + ) + @defer.inlineCallbacks def _background_reindex_fields_sender(self, progress, batch_size): target_min_stream_id = progress["target_min_stream_id_inclusive"] diff --git a/synapse/storage/data_stores/main/schema/delta/56/redaction_censor.sql b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor.sql index fe51b02309..ea95db0ed7 100644 --- a/synapse/storage/data_stores/main/schema/delta/56/redaction_censor.sql +++ b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor.sql @@ -14,4 +14,3 @@ */ ALTER TABLE redactions ADD COLUMN have_censored BOOL NOT NULL DEFAULT false; -CREATE INDEX redactions_have_censored ON redactions(event_id) WHERE not have_censored; diff --git a/synapse/storage/data_stores/main/schema/delta/56/redaction_censor2.sql b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor2.sql index 77a5eca499..49ce35d794 100644 --- a/synapse/storage/data_stores/main/schema/delta/56/redaction_censor2.sql +++ b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor2.sql @@ -14,7 +14,9 @@ */ ALTER TABLE redactions ADD COLUMN received_ts BIGINT; -CREATE INDEX redactions_have_censored_ts ON redactions(received_ts) WHERE not have_censored; INSERT INTO background_updates (update_name, progress_json) VALUES ('redactions_received_ts', '{}'); + +INSERT INTO background_updates (update_name, progress_json) VALUES + ('redactions_have_censored_ts_idx', '{}'); diff --git a/synapse/storage/data_stores/main/schema/delta/56/redaction_censor4.sql b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor4.sql new file mode 100644 index 0000000000..b7550f6f4e --- /dev/null +++ b/synapse/storage/data_stores/main/schema/delta/56/redaction_censor4.sql @@ -0,0 +1,16 @@ +/* Copyright 2019 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. + */ + +DROP INDEX IF EXISTS redactions_have_censored; diff --git a/synapse/util/caches/snapshot_cache.py b/synapse/util/caches/snapshot_cache.py deleted file mode 100644 index 8318db8d2c..0000000000 --- a/synapse/util/caches/snapshot_cache.py +++ /dev/null @@ -1,94 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2015, 2016 OpenMarket Ltd -# -# 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 synapse.util.async_helpers import ObservableDeferred - - -class SnapshotCache(object): - """Cache for snapshots like the response of /initialSync. - The response of initialSync only has to be a recent snapshot of the - server state. It shouldn't matter to clients if it is a few minutes out - of date. - - This caches a deferred response. Until the deferred completes it will be - returned from the cache. This means that if the client retries the request - while the response is still being computed, that original response will be - used rather than trying to compute a new response. - - Once the deferred completes it will removed from the cache after 5 minutes. - We delay removing it from the cache because a client retrying its request - could race with us finishing computing the response. - - Rather than tracking precisely how long something has been in the cache we - keep two generations of completed responses. Every 5 minutes discard the - old generation, move the new generation to the old generation, and set the - new generation to be empty. This means that a result will be in the cache - somewhere between 5 and 10 minutes. - """ - - DURATION_MS = 5 * 60 * 1000 # Cache results for 5 minutes. - - def __init__(self): - self.pending_result_cache = {} # Request that haven't finished yet. - self.prev_result_cache = {} # The older requests that have finished. - self.next_result_cache = {} # The newer requests that have finished. - self.time_last_rotated_ms = 0 - - def rotate(self, time_now_ms): - # Rotate once if the cache duration has passed since the last rotation. - if time_now_ms - self.time_last_rotated_ms >= self.DURATION_MS: - self.prev_result_cache = self.next_result_cache - self.next_result_cache = {} - self.time_last_rotated_ms += self.DURATION_MS - - # Rotate again if the cache duration has passed twice since the last - # rotation. - if time_now_ms - self.time_last_rotated_ms >= self.DURATION_MS: - self.prev_result_cache = self.next_result_cache - self.next_result_cache = {} - self.time_last_rotated_ms = time_now_ms - - def get(self, time_now_ms, key): - self.rotate(time_now_ms) - # This cache is intended to deduplicate requests, so we expect it to be - # missed most of the time. So we just lookup the key in all of the - # dictionaries rather than trying to short circuit the lookup if the - # key is found. - result = self.prev_result_cache.get(key) - result = self.next_result_cache.get(key, result) - result = self.pending_result_cache.get(key, result) - if result is not None: - return result.observe() - else: - return None - - def set(self, time_now_ms, key, deferred): - self.rotate(time_now_ms) - - result = ObservableDeferred(deferred) - - self.pending_result_cache[key] = result - - def shuffle_along(r): - # When the deferred completes we shuffle it along to the first - # generation of the result cache. So that it will eventually - # expire from the rotation of that cache. - self.next_result_cache[key] = result - self.pending_result_cache.pop(key, None) - return r - - result.addBoth(shuffle_along) - - return result.observe() diff --git a/tests/util/test_snapshot_cache.py b/tests/util/test_snapshot_cache.py deleted file mode 100644 index 1a44f72425..0000000000 --- a/tests/util/test_snapshot_cache.py +++ /dev/null @@ -1,63 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2015, 2016 OpenMarket Ltd -# -# 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 twisted.internet.defer import Deferred - -from synapse.util.caches.snapshot_cache import SnapshotCache - -from .. import unittest - - -class SnapshotCacheTestCase(unittest.TestCase): - def setUp(self): - self.cache = SnapshotCache() - self.cache.DURATION_MS = 1 - - def test_get_set(self): - # Check that getting a missing key returns None - self.assertEquals(self.cache.get(0, "key"), None) - - # Check that setting a key with a deferred returns - # a deferred that resolves when the initial deferred does - d = Deferred() - set_result = self.cache.set(0, "key", d) - self.assertIsNotNone(set_result) - self.assertFalse(set_result.called) - - # Check that getting the key before the deferred has resolved - # returns a deferred that resolves when the initial deferred does. - get_result_at_10 = self.cache.get(10, "key") - self.assertIsNotNone(get_result_at_10) - self.assertFalse(get_result_at_10.called) - - # Check that the returned deferreds resolve when the initial deferred - # does. - d.callback("v") - self.assertTrue(set_result.called) - self.assertTrue(get_result_at_10.called) - - # Check that getting the key after the deferred has resolved - # before the cache expires returns a resolved deferred. - get_result_at_11 = self.cache.get(11, "key") - self.assertIsNotNone(get_result_at_11) - if isinstance(get_result_at_11, Deferred): - # The cache may return the actual result rather than a deferred - self.assertTrue(get_result_at_11.called) - - # Check that getting the key after the deferred has resolved - # after the cache expires returns None - get_result_at_12 = self.cache.get(12, "key") - self.assertIsNone(get_result_at_12) |