From f40645e60b9cab69c953094848be61c0989a91cb Mon Sep 17 00:00:00 2001 From: Patrick Cloke Date: Tue, 18 Aug 2020 16:20:49 -0400 Subject: Convert events worker database to async/await. (#8071) --- synapse/event_auth.py | 2 +- synapse/handlers/federation.py | 16 +-- synapse/handlers/message.py | 6 +- synapse/handlers/room_member.py | 2 +- synapse/spam_checker_api/__init__.py | 2 +- synapse/state/__init__.py | 2 +- synapse/storage/databases/main/event_federation.py | 30 +++-- synapse/storage/databases/main/events_worker.py | 132 ++++++++++++--------- synapse/storage/databases/main/stream.py | 1 - 9 files changed, 100 insertions(+), 93 deletions(-) (limited to 'synapse') diff --git a/synapse/event_auth.py b/synapse/event_auth.py index c0981eee62..8c907ad596 100644 --- a/synapse/event_auth.py +++ b/synapse/event_auth.py @@ -47,7 +47,7 @@ def check( Args: room_version_obj: the version of the room event: the event being checked. - auth_events (dict: event-key -> event): the existing room state. + auth_events: the existing room state. Raises: AuthError if the checks fail diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 593932adb7..5b270228e7 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -1777,9 +1777,7 @@ class FederationHandler(BaseHandler): """Returns the state at the event. i.e. not including said event. """ - event = await self.store.get_event( - event_id, allow_none=False, check_room_id=room_id - ) + event = await self.store.get_event(event_id, check_room_id=room_id) state_groups = await self.state_store.get_state_groups(room_id, [event_id]) @@ -1805,9 +1803,7 @@ class FederationHandler(BaseHandler): async def get_state_ids_for_pdu(self, room_id: str, event_id: str) -> List[str]: """Returns the state at the event. i.e. not including said event. """ - event = await self.store.get_event( - event_id, allow_none=False, check_room_id=room_id - ) + event = await self.store.get_event(event_id, check_room_id=room_id) state_groups = await self.state_store.get_state_groups_ids(room_id, [event_id]) @@ -2155,9 +2151,9 @@ class FederationHandler(BaseHandler): auth_types = auth_types_for_event(event) current_state_ids = [e for k, e in current_state_ids.items() if k in auth_types] - current_auth_events = await self.store.get_events(current_state_ids) + auth_events_map = await self.store.get_events(current_state_ids) current_auth_events = { - (e.type, e.state_key): e for e in current_auth_events.values() + (e.type, e.state_key): e for e in auth_events_map.values() } try: @@ -2173,9 +2169,7 @@ class FederationHandler(BaseHandler): if not in_room: raise AuthError(403, "Host not in room.") - event = await self.store.get_event( - event_id, allow_none=False, check_room_id=room_id - ) + event = await self.store.get_event(event_id, check_room_id=room_id) # Just go through and process each event in `remote_auth_chain`. We # don't want to fall into the trap of `missing` being wrong. diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 532fc30681..b999d91d1a 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -960,7 +960,7 @@ class EventCreationHandler(object): allow_none=True, ) - is_admin_redaction = ( + is_admin_redaction = bool( original_event and event.sender != original_event.sender ) @@ -1080,8 +1080,8 @@ class EventCreationHandler(object): auth_events_ids = self.auth.compute_auth_events( event, prev_state_ids, for_verification=True ) - auth_events = await self.store.get_events(auth_events_ids) - auth_events = {(e.type, e.state_key): e for e in auth_events.values()} + auth_events_map = await self.store.get_events(auth_events_ids) + auth_events = {(e.type, e.state_key): e for e in auth_events_map.values()} room_version = await self.store.get_room_version_id(event.room_id) room_version_obj = KNOWN_ROOM_VERSIONS[room_version] diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 31705cdbdb..aa1ccde211 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -716,7 +716,7 @@ class RoomMemberHandler(object): guest_access = await self.store.get_event(guest_access_id) - return ( + return bool( guest_access and guest_access.content and "guest_access" in guest_access.content diff --git a/synapse/spam_checker_api/__init__.py b/synapse/spam_checker_api/__init__.py index 9b78924d96..4d9b13ac04 100644 --- a/synapse/spam_checker_api/__init__.py +++ b/synapse/spam_checker_api/__init__.py @@ -51,5 +51,5 @@ class SpamCheckerApi(object): state_ids = yield self._store.get_filtered_current_state_ids( room_id=room_id, state_filter=StateFilter.from_types(types) ) - state = yield self._store.get_events(state_ids.values()) + state = yield defer.ensureDeferred(self._store.get_events(state_ids.values())) return state.values() diff --git a/synapse/state/__init__.py b/synapse/state/__init__.py index a1d3884667..dba8d91eef 100644 --- a/synapse/state/__init__.py +++ b/synapse/state/__init__.py @@ -641,7 +641,7 @@ class StateResolutionStore(object): allow_rejected (bool): If True return rejected events. Returns: - Deferred[dict[str, FrozenEvent]]: Dict from event_id to event. + Awaitable[dict[str, FrozenEvent]]: Dict from event_id to event. """ return self.store.get_events( diff --git a/synapse/storage/databases/main/event_federation.py b/synapse/storage/databases/main/event_federation.py index 431bd76693..4826be630c 100644 --- a/synapse/storage/databases/main/event_federation.py +++ b/synapse/storage/databases/main/event_federation.py @@ -30,7 +30,7 @@ logger = logging.getLogger(__name__) class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBaseStore): - def get_auth_chain(self, event_ids, include_given=False): + async def get_auth_chain(self, event_ids, include_given=False): """Get auth events for given event_ids. The events *must* be state events. Args: @@ -40,9 +40,10 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas Returns: list of events """ - return self.get_auth_chain_ids( + event_ids = await self.get_auth_chain_ids( event_ids, include_given=include_given - ).addCallback(self.get_events_as_list) + ) + return await self.get_events_as_list(event_ids) def get_auth_chain_ids( self, @@ -459,7 +460,7 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas "get_forward_extremeties_for_room", get_forward_extremeties_for_room_txn ) - def get_backfill_events(self, room_id, event_list, limit): + async def get_backfill_events(self, room_id, event_list, limit): """Get a list of Events for a given topic that occurred before (and including) the events in event_list. Return a list of max size `limit` @@ -469,17 +470,15 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas event_list (list) limit (int) """ - return ( - self.db_pool.runInteraction( - "get_backfill_events", - self._get_backfill_events, - room_id, - event_list, - limit, - ) - .addCallback(self.get_events_as_list) - .addCallback(lambda l: sorted(l, key=lambda e: -e.depth)) + event_ids = await self.db_pool.runInteraction( + "get_backfill_events", + self._get_backfill_events, + room_id, + event_list, + limit, ) + events = await self.get_events_as_list(event_ids) + return sorted(events, key=lambda e: -e.depth) def _get_backfill_events(self, txn, room_id, event_list, limit): logger.debug("_get_backfill_events: %s, %r, %s", room_id, event_list, limit) @@ -540,8 +539,7 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas latest_events, limit, ) - events = await self.get_events_as_list(ids) - return events + return await self.get_events_as_list(ids) def _get_missing_events(self, txn, room_id, earliest_events, latest_events, limit): diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py index 8c63a0dc4d..e3a154a527 100644 --- a/synapse/storage/databases/main/events_worker.py +++ b/synapse/storage/databases/main/events_worker.py @@ -19,9 +19,10 @@ import itertools import logging import threading from collections import namedtuple -from typing import List, Optional, Tuple +from typing import Dict, Iterable, List, Optional, Tuple, overload from constantly import NamedConstant, Names +from typing_extensions import Literal from twisted.internet import defer @@ -32,7 +33,7 @@ from synapse.api.room_versions import ( EventFormatVersions, RoomVersions, ) -from synapse.events import make_event_from_dict +from synapse.events import EventBase, make_event_from_dict from synapse.events.utils import prune_event from synapse.logging.context import PreserveLoggingContext, current_context from synapse.metrics.background_process_metrics import run_as_background_process @@ -42,8 +43,8 @@ from synapse.replication.tcp.streams.events import EventsStream from synapse.storage._base import SQLBaseStore, db_to_json, make_in_list_sql_clause from synapse.storage.database import DatabasePool from synapse.storage.util.id_generators import StreamIdGenerator -from synapse.types import get_domain_from_id -from synapse.util.caches.descriptors import Cache, cachedInlineCallbacks +from synapse.types import Collection, get_domain_from_id +from synapse.util.caches.descriptors import Cache, cached from synapse.util.iterutils import batch_iter from synapse.util.metrics import Measure @@ -137,8 +138,33 @@ class EventsWorkerStore(SQLBaseStore): desc="get_received_ts", ) - @defer.inlineCallbacks - def get_event( + # Inform mypy that if allow_none is False (the default) then get_event + # always returns an EventBase. + @overload + async def get_event( + self, + event_id: str, + redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT, + get_prev_content: bool = False, + allow_rejected: bool = False, + allow_none: Literal[False] = False, + check_room_id: Optional[str] = None, + ) -> EventBase: + ... + + @overload + async def get_event( + self, + event_id: str, + redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT, + get_prev_content: bool = False, + allow_rejected: bool = False, + allow_none: Literal[True] = False, + check_room_id: Optional[str] = None, + ) -> Optional[EventBase]: + ... + + async def get_event( self, event_id: str, redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT, @@ -146,7 +172,7 @@ class EventsWorkerStore(SQLBaseStore): allow_rejected: bool = False, allow_none: bool = False, check_room_id: Optional[str] = None, - ): + ) -> Optional[EventBase]: """Get an event from the database by event_id. Args: @@ -171,12 +197,12 @@ class EventsWorkerStore(SQLBaseStore): If there is a mismatch, behave as per allow_none. Returns: - Deferred[EventBase|None] + The event, or None if the event was not found. """ if not isinstance(event_id, str): raise TypeError("Invalid event event_id %r" % (event_id,)) - events = yield self.get_events_as_list( + events = await self.get_events_as_list( [event_id], redact_behaviour=redact_behaviour, get_prev_content=get_prev_content, @@ -194,14 +220,13 @@ class EventsWorkerStore(SQLBaseStore): return event - @defer.inlineCallbacks - def get_events( + async def get_events( self, - event_ids: List[str], + event_ids: Iterable[str], redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT, get_prev_content: bool = False, allow_rejected: bool = False, - ): + ) -> Dict[str, EventBase]: """Get events from the database Args: @@ -220,9 +245,9 @@ class EventsWorkerStore(SQLBaseStore): omits rejeted events from the response. Returns: - Deferred : Dict from event_id to event. + A mapping from event_id to event. """ - events = yield self.get_events_as_list( + events = await self.get_events_as_list( event_ids, redact_behaviour=redact_behaviour, get_prev_content=get_prev_content, @@ -231,14 +256,13 @@ class EventsWorkerStore(SQLBaseStore): return {e.event_id: e for e in events} - @defer.inlineCallbacks - def get_events_as_list( + async def get_events_as_list( self, - event_ids: List[str], + event_ids: Collection[str], redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT, get_prev_content: bool = False, allow_rejected: bool = False, - ): + ) -> List[EventBase]: """Get events from the database and return in a list in the same order as given by `event_ids` arg. @@ -259,8 +283,8 @@ class EventsWorkerStore(SQLBaseStore): omits rejected events from the response. Returns: - Deferred[list[EventBase]]: List of events fetched from the database. The - events are in the same order as `event_ids` arg. + List of events fetched from the database. The events are in the same + order as `event_ids` arg. Note that the returned list may be smaller than the list of event IDs if not all events could be fetched. @@ -270,7 +294,7 @@ class EventsWorkerStore(SQLBaseStore): return [] # there may be duplicates so we cast the list to a set - event_entry_map = yield self._get_events_from_cache_or_db( + event_entry_map = await self._get_events_from_cache_or_db( set(event_ids), allow_rejected=allow_rejected ) @@ -305,7 +329,7 @@ class EventsWorkerStore(SQLBaseStore): continue redacted_event_id = entry.event.redacts - event_map = yield self._get_events_from_cache_or_db([redacted_event_id]) + event_map = await self._get_events_from_cache_or_db([redacted_event_id]) original_event_entry = event_map.get(redacted_event_id) if not original_event_entry: # we don't have the redacted event (or it was rejected). @@ -371,7 +395,7 @@ class EventsWorkerStore(SQLBaseStore): if get_prev_content: if "replaces_state" in event.unsigned: - prev = yield self.get_event( + prev = await self.get_event( event.unsigned["replaces_state"], get_prev_content=False, allow_none=True, @@ -383,8 +407,7 @@ class EventsWorkerStore(SQLBaseStore): return events - @defer.inlineCallbacks - def _get_events_from_cache_or_db(self, event_ids, allow_rejected=False): + async def _get_events_from_cache_or_db(self, event_ids, allow_rejected=False): """Fetch a bunch of events from the cache or the database. If events are pulled from the database, they will be cached for future lookups. @@ -399,7 +422,7 @@ class EventsWorkerStore(SQLBaseStore): rejected events are omitted from the response. Returns: - Deferred[Dict[str, _EventCacheEntry]]: + Dict[str, _EventCacheEntry]: map from event id to result """ event_entry_map = self._get_events_from_cache( @@ -417,7 +440,7 @@ class EventsWorkerStore(SQLBaseStore): # the events have been redacted, and if so pulling the redaction event out # of the database to check it. # - missing_events = yield self._get_events_from_db( + missing_events = await self._get_events_from_db( missing_events_ids, allow_rejected=allow_rejected ) @@ -525,8 +548,7 @@ class EventsWorkerStore(SQLBaseStore): with PreserveLoggingContext(): self.hs.get_reactor().callFromThread(fire, event_list, e) - @defer.inlineCallbacks - def _get_events_from_db(self, event_ids, allow_rejected=False): + async def _get_events_from_db(self, event_ids, allow_rejected=False): """Fetch a bunch of events from the database. Returned events will be added to the cache for future lookups. @@ -540,7 +562,7 @@ class EventsWorkerStore(SQLBaseStore): rejected events are omitted from the response. Returns: - Deferred[Dict[str, _EventCacheEntry]]: + Dict[str, _EventCacheEntry]: map from event id to result. May return extra events which weren't asked for. """ @@ -548,7 +570,7 @@ class EventsWorkerStore(SQLBaseStore): events_to_fetch = event_ids while events_to_fetch: - row_map = yield self._enqueue_events(events_to_fetch) + row_map = await self._enqueue_events(events_to_fetch) # we need to recursively fetch any redactions of those events redaction_ids = set() @@ -650,8 +672,7 @@ class EventsWorkerStore(SQLBaseStore): return result_map - @defer.inlineCallbacks - def _enqueue_events(self, events): + async def _enqueue_events(self, events): """Fetches events from the database using the _event_fetch_list. This allows batch and bulk fetching of events - it allows us to fetch events without having to create a new transaction for each request for events. @@ -660,7 +681,7 @@ class EventsWorkerStore(SQLBaseStore): events (Iterable[str]): events to be fetched. Returns: - Deferred[Dict[str, Dict]]: map from event id to row data from the database. + Dict[str, Dict]: map from event id to row data from the database. May contain events that weren't requested. """ @@ -683,7 +704,7 @@ class EventsWorkerStore(SQLBaseStore): logger.debug("Loading %d events: %s", len(events), events) with PreserveLoggingContext(): - row_map = yield events_d + row_map = await events_d logger.debug("Loaded %d events (%d rows)", len(events), len(row_map)) return row_map @@ -842,33 +863,29 @@ class EventsWorkerStore(SQLBaseStore): # no valid redaction found for this event return None - @defer.inlineCallbacks - def have_events_in_timeline(self, event_ids): + async def have_events_in_timeline(self, event_ids): """Given a list of event ids, check if we have already processed and stored them as non outliers. """ - rows = yield defer.ensureDeferred( - self.db_pool.simple_select_many_batch( - table="events", - retcols=("event_id",), - column="event_id", - iterable=list(event_ids), - keyvalues={"outlier": False}, - desc="have_events_in_timeline", - ) + rows = await self.db_pool.simple_select_many_batch( + table="events", + retcols=("event_id",), + column="event_id", + iterable=list(event_ids), + keyvalues={"outlier": False}, + desc="have_events_in_timeline", ) return {r["event_id"] for r in rows} - @defer.inlineCallbacks - def have_seen_events(self, event_ids): + async def have_seen_events(self, event_ids): """Given a list of event ids, check if we have already processed them. Args: event_ids (iterable[str]): Returns: - Deferred[set[str]]: The events we have already seen. + set[str]: The events we have already seen. """ results = set() @@ -884,7 +901,7 @@ class EventsWorkerStore(SQLBaseStore): # break the input up into chunks of 100 input_iterator = iter(event_ids) for chunk in iter(lambda: list(itertools.islice(input_iterator, 100)), []): - yield self.db_pool.runInteraction( + await self.db_pool.runInteraction( "have_seen_events", have_seen_events_txn, chunk ) return results @@ -914,8 +931,7 @@ class EventsWorkerStore(SQLBaseStore): room_id, ) - @defer.inlineCallbacks - def get_room_complexity(self, room_id): + async def get_room_complexity(self, room_id): """ Get a rough approximation of the complexity of the room. This is used by remote servers to decide whether they wish to join the room or not. @@ -926,9 +942,9 @@ class EventsWorkerStore(SQLBaseStore): room_id (str) Returns: - Deferred[dict[str:int]] of complexity version to complexity. + dict[str:int] of complexity version to complexity. """ - state_events = yield self.get_current_state_event_counts(room_id) + state_events = await self.get_current_state_event_counts(room_id) # Call this one "v1", so we can introduce new ones as we want to develop # it. @@ -1165,9 +1181,9 @@ class EventsWorkerStore(SQLBaseStore): to_2, so_2 = await self.get_event_ordering(event_id2) return (to_1, so_1) > (to_2, so_2) - @cachedInlineCallbacks(max_entries=5000) - def get_event_ordering(self, event_id): - res = yield self.db_pool.simple_select_one( + @cached(max_entries=5000) + async def get_event_ordering(self, event_id): + res = await self.db_pool.simple_select_one( table="events", retcols=["topological_ordering", "stream_ordering"], keyvalues={"event_id": event_id}, diff --git a/synapse/storage/databases/main/stream.py b/synapse/storage/databases/main/stream.py index 4377bddb8c..497f607703 100644 --- a/synapse/storage/databases/main/stream.py +++ b/synapse/storage/databases/main/stream.py @@ -379,7 +379,6 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): limit: int = 0, order: str = "DESC", ) -> Tuple[List[EventBase], str]: - """Get new room events in stream ordering since `from_key`. Args: -- cgit 1.4.1