diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py index f9445bef1..8e684d91b 100644 --- a/synapse/events/snapshot.py +++ b/synapse/events/snapshot.py @@ -52,7 +52,6 @@ class EventContext(object): "prev_state_ids", "state_group", "rejected", - "push_actions", "prev_group", "delta_ids", "prev_state_events", @@ -67,7 +66,6 @@ class EventContext(object): self.state_group = None self.rejected = False - self.push_actions = [] # A previously persisted state group and a delta between that # and this state. @@ -104,7 +102,6 @@ class EventContext(object): "event_state_key": event.state_key if event.is_state() else None, "state_group": self.state_group, "rejected": self.rejected, - "push_actions": self.push_actions, "prev_group": self.prev_group, "delta_ids": _encode_state_dict(self.delta_ids), "prev_state_events": self.prev_state_events, @@ -127,7 +124,6 @@ class EventContext(object): context = EventContext() context.state_group = input["state_group"] context.rejected = input["rejected"] - context.push_actions = input["push_actions"] context.prev_group = input["prev_group"] context.delta_ids = _decode_state_dict(input["delta_ids"]) context.prev_state_events = input["prev_state_events"] diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 1c3ac03f2..d99d8049b 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -683,9 +683,15 @@ class EventCreationHandler(object): event, context ) - (event_stream_id, max_stream_id) = yield self.store.persist_event( - event, context=context - ) + try: + (event_stream_id, max_stream_id) = yield self.store.persist_event( + event, context=context + ) + except: # noqa: E722, as we reraise the exception this is fine. + # Ensure that we actually remove the entries in the push actions + # staging area + preserve_fn(self.store.remove_push_actions_from_staging)(event.event_id) + raise # this intentionally does not yield: we don't care about the result # and don't need to wait for it. diff --git a/synapse/push/action_generator.py b/synapse/push/action_generator.py index fe09d50d5..8f619a7a1 100644 --- a/synapse/push/action_generator.py +++ b/synapse/push/action_generator.py @@ -40,10 +40,6 @@ class ActionGenerator(object): @defer.inlineCallbacks def handle_push_actions_for_event(self, event, context): with Measure(self.clock, "action_for_event_by_user"): - actions_by_user = yield self.bulk_evaluator.action_for_event_by_user( + yield self.bulk_evaluator.action_for_event_by_user( event, context ) - - context.push_actions = [ - (uid, actions) for uid, actions in actions_by_user.iteritems() - ] diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py index 425a017bd..bf4f1c583 100644 --- a/synapse/push/bulk_push_rule_evaluator.py +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -137,14 +137,13 @@ class BulkPushRuleEvaluator(object): @defer.inlineCallbacks def action_for_event_by_user(self, event, context): - """Given an event and context, evaluate the push rules and return - the results + """Given an event and context, evaluate the push rules and insert the + results into the event_push_actions_staging table. Returns: - dict of user_id -> action + Deferred """ rules_by_user = yield self._get_rules_for_event(event, context) - actions_by_user = {} room_members = yield self.store.get_joined_users_from_context( event, context @@ -190,9 +189,13 @@ class BulkPushRuleEvaluator(object): if matches: actions = [x for x in rule['actions'] if x != 'dont_notify'] if actions and 'notify' in actions: - actions_by_user[uid] = actions + # Push rules say we should notify the user of this event, + # so we mark it in the DB in the staging area. (This + # will then get handled when we persist the event) + yield self.store.add_push_actions_to_staging( + event.event_id, uid, actions, + ) break - defer.returnValue(actions_by_user) def _condition_checker(evaluator, conditions, uid, display_name, cache): diff --git a/synapse/storage/event_push_actions.py b/synapse/storage/event_push_actions.py index 8efe2fd4b..f787431b7 100644 --- a/synapse/storage/event_push_actions.py +++ b/synapse/storage/event_push_actions.py @@ -88,33 +88,50 @@ class EventPushActionsStore(SQLBaseStore): self._rotate_notifs, 30 * 60 * 1000 ) - def _set_push_actions_for_event_and_users_txn(self, txn, event, tuples): + def _set_push_actions_for_event_and_users_txn(self, txn, event): """ Args: event: the event set actions for tuples: list of tuples of (user_id, actions) """ - values = [] - for uid, actions in tuples: - is_highlight = 1 if _action_has_highlight(actions) else 0 - values.append({ - 'room_id': event.room_id, - 'event_id': event.event_id, - 'user_id': uid, - 'actions': _serialize_action(actions, is_highlight), - 'stream_ordering': event.internal_metadata.stream_ordering, - 'topological_ordering': event.depth, - 'notif': 1, - 'highlight': is_highlight, - }) + sql = """ + INSERT INTO event_push_actions ( + room_id, event_id, user_id, actions, stream_ordering, + topological_ordering, notif, highlight + ) + SELECT ?, event_id, user_id, actions, ?, ?, notif, highlight + FROM event_push_actions_staging + WHERE event_id = ? + """ - for uid, __ in tuples: + txn.execute(sql, ( + event.room_id, event.internal_metadata.stream_ordering, + event.depth, event.event_id, + )) + + user_ids = self._simple_select_onecol_txn( + txn, + table="event_push_actions_staging", + keyvalues={ + "event_id": event.event_id, + }, + retcol="user_id", + ) + + self._simple_delete_txn( + txn, + table="event_push_actions_staging", + keyvalues={ + "event_id": event.event_id, + }, + ) + + for uid in user_ids: txn.call_after( self.get_unread_event_push_actions_by_room_for_user.invalidate_many, - (event.room_id, uid) + (event.room_id, uid,) ) - self._simple_insert_many_txn(txn, "event_push_actions", values) @cachedInlineCallbacks(num_args=3, tree=True, max_entries=5000) def get_unread_event_push_actions_by_room_for_user( @@ -738,6 +755,50 @@ class EventPushActionsStore(SQLBaseStore): (rotate_to_stream_ordering,) ) + def add_push_actions_to_staging(self, event_id, user_id, actions): + """Add the push actions for the user and event to the push + action staging area. + + Args: + event_id (str) + user_id (str) + actions (list[dict|str]): An action can either be a string or + dict. + + Returns: + Deferred + """ + + is_highlight = 1 if _action_has_highlight(actions) else 0 + + return self._simple_insert( + table="event_push_actions_staging", + values={ + "event_id": event_id, + "user_id": user_id, + "actions": _serialize_action(actions, is_highlight), + "notif": 1, + "highlight": is_highlight, + }, + desc="add_push_actions_to_staging", + ) + + def remove_push_actions_from_staging(self, event_id): + """Called if we failed to persist the event to ensure that stale push + actions don't build up in the DB + + Args: + event_id (str) + """ + + return self._simple_delete( + table="event_push_actions_staging", + keyvalues={ + "event_id": event_id, + }, + desc="remove_push_actions_from_staging", + ) + def _action_has_highlight(actions): for action in actions: diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 28cce2979..52b7b3474 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -1168,10 +1168,9 @@ class EventsStore(SQLBaseStore): for event, context in events_and_contexts: # Insert all the push actions into the event_push_actions table. - if context.push_actions: - self._set_push_actions_for_event_and_users_txn( - txn, event, context.push_actions - ) + self._set_push_actions_for_event_and_users_txn( + txn, event, + ) if event.type == EventTypes.Redaction and event.redacts is not None: # Remove the entries in the event_push_actions table for the diff --git a/synapse/storage/schema/delta/47/push_actions_staging.sql b/synapse/storage/schema/delta/47/push_actions_staging.sql new file mode 100644 index 000000000..edccf4a96 --- /dev/null +++ b/synapse/storage/schema/delta/47/push_actions_staging.sql @@ -0,0 +1,28 @@ +/* Copyright 2018 New Vector 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. + */ + +-- Temporary staging area for push actions that have been calculated for an +-- event, but the event hasn't yet been persisted. +-- When the event is persisted the rows are moved over to the +-- event_push_actions table. +CREATE TABLE event_push_actions_staging ( + event_id TEXT NOT NULL, + user_id TEXT NOT NULL, + actions TEXT NOT NULL, + notif SMALLINT NOT NULL, + highlight SMALLINT NOT NULL +); + +CREATE INDEX event_push_actions_staging_id ON event_push_actions_staging(event_id); diff --git a/tests/replication/slave/storage/test_events.py b/tests/replication/slave/storage/test_events.py index f430cce93..4780f2ab7 100644 --- a/tests/replication/slave/storage/test_events.py +++ b/tests/replication/slave/storage/test_events.py @@ -230,7 +230,10 @@ class SlavedEventStoreTestCase(BaseSlavedStoreTestCase): state_handler = self.hs.get_state_handler() context = yield state_handler.compute_event_context(event) - context.push_actions = push_actions + for user_id, actions in push_actions: + yield self.master_store.add_push_actions_to_staging( + event.event_id, user_id, actions, + ) ordering = None if backfill: diff --git a/tests/storage/test_event_push_actions.py b/tests/storage/test_event_push_actions.py index 313548835..d483e7cf9 100644 --- a/tests/storage/test_event_push_actions.py +++ b/tests/storage/test_event_push_actions.py @@ -62,6 +62,7 @@ class EventPushActionsStoreTestCase(tests.unittest.TestCase): {"notify_count": noitf_count, "highlight_count": highlight_count} ) + @defer.inlineCallbacks def _inject_actions(stream, action): event = Mock() event.room_id = room_id @@ -69,11 +70,12 @@ class EventPushActionsStoreTestCase(tests.unittest.TestCase): event.internal_metadata.stream_ordering = stream event.depth = stream - tuples = [(user_id, action)] - - return self.store.runInteraction( + yield self.store.add_push_actions_to_staging( + event.event_id, user_id, action, + ) + yield self.store.runInteraction( "", self.store._set_push_actions_for_event_and_users_txn, - event, tuples + event, ) def _rotate(stream):