diff options
| -rw-r--r-- | changelog.d/15693.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/databases/state/bg_updates.py | 31 | ||||
| -rw-r--r-- | synapse/storage/schema/main/delta/77/14bg_indices_event_stream_ordering.sql | 20 |
3 files changed, 52 insertions, 0 deletions
diff --git a/changelog.d/15693.bugfix b/changelog.d/15693.bugfix new file mode 100644 index 0000000000..d0325de007 --- /dev/null +++ b/changelog.d/15693.bugfix @@ -0,0 +1 @@ +Fix a performance issue introduced in Synapse v1.83.0 which meant that purging rooms was very slow and database-intensive. \ No newline at end of file diff --git a/synapse/storage/databases/state/bg_updates.py b/synapse/storage/databases/state/bg_updates.py index 86eb1a8a08..5b8ba436d4 100644 --- a/synapse/storage/databases/state/bg_updates.py +++ b/synapse/storage/databases/state/bg_updates.py @@ -261,6 +261,16 @@ class StateBackgroundUpdateStore(StateGroupBackgroundUpdateStore): STATE_GROUPS_ROOM_INDEX_UPDATE_NAME = "state_groups_room_id_idx" STATE_GROUP_EDGES_UNIQUE_INDEX_UPDATE_NAME = "state_group_edges_unique_idx" + CURRENT_STATE_EVENTS_STREAM_ORDERING_INDEX_UPDATE_NAME = ( + "current_state_events_stream_ordering_idx" + ) + ROOM_MEMBERSHIPS_STREAM_ORDERING_INDEX_UPDATE_NAME = ( + "room_memberships_stream_ordering_idx" + ) + LOCAL_CURRENT_MEMBERSHIP_STREAM_ORDERING_INDEX_UPDATE_NAME = ( + "local_current_membership_stream_ordering_idx" + ) + def __init__( self, database: DatabasePool, @@ -297,6 +307,27 @@ class StateBackgroundUpdateStore(StateGroupBackgroundUpdateStore): replaces_index="state_group_edges_idx", ) + # These indices are needed to validate the foreign key constraint + # when events are deleted. + self.db_pool.updates.register_background_index_update( + self.CURRENT_STATE_EVENTS_STREAM_ORDERING_INDEX_UPDATE_NAME, + index_name="current_state_events_stream_ordering_idx", + table="current_state_events", + columns=["event_stream_ordering"], + ) + self.db_pool.updates.register_background_index_update( + self.ROOM_MEMBERSHIPS_STREAM_ORDERING_INDEX_UPDATE_NAME, + index_name="room_memberships_stream_ordering_idx", + table="room_memberships", + columns=["event_stream_ordering"], + ) + self.db_pool.updates.register_background_index_update( + self.LOCAL_CURRENT_MEMBERSHIP_STREAM_ORDERING_INDEX_UPDATE_NAME, + index_name="local_current_membership_stream_ordering_idx", + table="local_current_membership", + columns=["event_stream_ordering"], + ) + async def _background_deduplicate_state( self, progress: dict, batch_size: int ) -> int: diff --git a/synapse/storage/schema/main/delta/77/14bg_indices_event_stream_ordering.sql b/synapse/storage/schema/main/delta/77/14bg_indices_event_stream_ordering.sql new file mode 100644 index 0000000000..ec8cd522ec --- /dev/null +++ b/synapse/storage/schema/main/delta/77/14bg_indices_event_stream_ordering.sql @@ -0,0 +1,20 @@ +/* Copyright 2023 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. + */ + +INSERT INTO background_updates (ordering, update_name, progress_json) + VALUES + (7714, 'current_state_events_stream_ordering_idx', '{}'), + (7714, 'local_current_membership_stream_ordering_idx', '{}'), + (7714, 'room_memberships_stream_ordering_idx', '{}'); |