Cache room membership lookups in _get_joined_users_from_context

This commit is contained in:
Erik Johnston 2019-10-03 17:11:04 +01:00
parent 6018bec919
commit c8145af8a9

View file

@ -16,6 +16,7 @@
import logging
from collections import namedtuple
from typing import Iterable
from six import iteritems, itervalues
@ -32,7 +33,7 @@ from synapse.storage.events_worker import EventsWorkerStore
from synapse.types import get_domain_from_id
from synapse.util.async_helpers import Linearizer
from synapse.util.caches import intern_string
from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
from synapse.util.caches.descriptors import cached, cachedInlineCallbacks, cachedList
from synapse.util.stringutils import to_ascii
logger = logging.getLogger(__name__)
@ -567,25 +568,10 @@ class RoomMemberWorkerStore(EventsWorkerStore):
missing_member_event_ids.append(event_id)
if missing_member_event_ids:
rows = yield self._simple_select_many_batch(
table="room_memberships",
column="event_id",
iterable=missing_member_event_ids,
retcols=("user_id", "display_name", "avatar_url"),
keyvalues={"membership": Membership.JOIN},
batch_size=500,
desc="_get_joined_users_from_context",
)
users_in_room.update(
{
to_ascii(row["user_id"]): ProfileInfo(
avatar_url=to_ascii(row["avatar_url"]),
display_name=to_ascii(row["display_name"]),
)
for row in rows
}
event_to_memberships = yield self._get_membership_from_event_ids(
missing_member_event_ids
)
users_in_room.update((row for row in event_to_memberships.values() if row))
if event is not None and event.type == EventTypes.Member:
if event.membership == Membership.JOIN:
@ -597,6 +583,46 @@ class RoomMemberWorkerStore(EventsWorkerStore):
return users_in_room
@cached(max_entries=10000)
def _get_membership_from_event_id(self, event_id):
raise NotADirectoryError()
@cachedList(
cached_method_name="_get_membership_from_event_id",
list_name="event_ids",
inlineCallbacks=True,
)
def _get_membership_from_event_ids(self, event_ids: Iterable[str]):
"""Lookup profile info for set of member event IDs.
Args:
event_ids: The member event IDs to lookup
Returns:
Deferred[dict[str, Tuple[str, ProfileInfo]|None]]: Map from event ID
to `user_id` and ProfileInfo (or None if couldn't find event).
"""
rows = yield self._simple_select_many_batch(
table="room_memberships",
column="event_id",
iterable=event_ids,
retcols=("user_id", "display_name", "avatar_url"),
keyvalues={"membership": Membership.JOIN},
batch_size=500,
desc="_get_membership_from_event_ids",
)
return {
row["event_id"]: (
row["user_id"],
ProfileInfo(
avatar_url=row["avatar_url"], display_name=row["display_name"]
),
)
for row in rows
}
@cachedInlineCallbacks(max_entries=10000)
def is_host_joined(self, room_id, host):
if "%" in host or "_" in host: