diff options
| -rw-r--r-- | changelog.d/11878.misc | 1 | ||||
| -rw-r--r-- | synapse/storage/_base.py | 11 | ||||
| -rw-r--r-- | synapse/storage/databases/main/cache.py | 16 |
3 files changed, 20 insertions, 8 deletions
diff --git a/changelog.d/11878.misc b/changelog.d/11878.misc new file mode 100644 index 0000000000..74915a47dd --- /dev/null +++ b/changelog.d/11878.misc @@ -0,0 +1 @@ +Do not needlessly clear the `get_users_in_room` and `get_users_in_room_with_profiles` caches when any room state changes. diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 7967011afd..8df80664a2 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -57,7 +57,7 @@ class SQLBaseStore(metaclass=ABCMeta): pass def _invalidate_state_caches( - self, room_id: str, members_changed: Iterable[str] + self, room_id: str, members_changed: Collection[str] ) -> None: """Invalidates caches that are based on the current state, but does not stream invalidations down replication. @@ -66,11 +66,16 @@ class SQLBaseStore(metaclass=ABCMeta): room_id: Room where state changed members_changed: The user_ids of members that have changed """ + # If there were any membership changes, purge the appropriate caches. for host in {get_domain_from_id(u) for u in members_changed}: self._attempt_to_invalidate_cache("is_host_joined", (room_id, host)) + if members_changed: + self._attempt_to_invalidate_cache("get_users_in_room", (room_id,)) + self._attempt_to_invalidate_cache( + "get_users_in_room_with_profiles", (room_id,) + ) - self._attempt_to_invalidate_cache("get_users_in_room", (room_id,)) - self._attempt_to_invalidate_cache("get_users_in_room_with_profiles", (room_id,)) + # Purge other caches based on room state. self._attempt_to_invalidate_cache("get_room_summary", (room_id,)) self._attempt_to_invalidate_cache("get_current_state_ids", (room_id,)) diff --git a/synapse/storage/databases/main/cache.py b/synapse/storage/databases/main/cache.py index 0024348067..c428dd5596 100644 --- a/synapse/storage/databases/main/cache.py +++ b/synapse/storage/databases/main/cache.py @@ -15,7 +15,7 @@ import itertools import logging -from typing import TYPE_CHECKING, Any, Iterable, List, Optional, Tuple +from typing import TYPE_CHECKING, Any, Collection, Iterable, List, Optional, Tuple from synapse.api.constants import EventTypes from synapse.replication.tcp.streams import BackfillStream, CachesStream @@ -25,7 +25,11 @@ from synapse.replication.tcp.streams.events import ( EventsStreamEventRow, ) from synapse.storage._base import SQLBaseStore -from synapse.storage.database import DatabasePool, LoggingDatabaseConnection +from synapse.storage.database import ( + DatabasePool, + LoggingDatabaseConnection, + LoggingTransaction, +) from synapse.storage.engines import PostgresEngine from synapse.util.iterutils import batch_iter @@ -236,7 +240,9 @@ class CacheInvalidationWorkerStore(SQLBaseStore): txn.call_after(cache_func.invalidate_all) self._send_invalidation_to_replication(txn, cache_func.__name__, None) - def _invalidate_state_caches_and_stream(self, txn, room_id, members_changed): + def _invalidate_state_caches_and_stream( + self, txn: LoggingTransaction, room_id: str, members_changed: Collection[str] + ) -> None: """Special case invalidation of caches based on current state. We special case this so that we can batch the cache invalidations into a @@ -244,8 +250,8 @@ class CacheInvalidationWorkerStore(SQLBaseStore): Args: txn - room_id (str): Room where state changed - members_changed (iterable[str]): The user_ids of members that have changed + room_id: Room where state changed + members_changed: The user_ids of members that have changed """ txn.call_after(self._invalidate_state_caches, room_id, members_changed) |