diff options
Diffstat (limited to 'synapse/storage')
| -rw-r--r-- | synapse/storage/database.py | 2 | ||||
| -rw-r--r-- | synapse/storage/databases/main/room.py | 43 | ||||
| -rw-r--r-- | synapse/storage/schema/main/delta/73/09partial_joined_via_destination.sql | 18 |
3 files changed, 56 insertions, 7 deletions
diff --git a/synapse/storage/database.py b/synapse/storage/database.py index 7bb21f8f81..4717c9728a 100644 --- a/synapse/storage/database.py +++ b/synapse/storage/database.py @@ -1658,7 +1658,7 @@ class DatabasePool: table: string giving the table name keyvalues: dict of column names and values to select the row with retcol: string giving the name of the column to return - allow_none: If true, return None instead of failing if the SELECT + allow_none: If true, return None instead of raising StoreError if the SELECT statement returns no rows desc: description of the transaction, for logging and metrics """ diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py index e41c99027a..7d97f8f60e 100644 --- a/synapse/storage/databases/main/room.py +++ b/synapse/storage/databases/main/room.py @@ -97,6 +97,12 @@ class RoomSortOrder(Enum): STATE_EVENTS = "state_events" +@attr.s(slots=True, frozen=True, auto_attribs=True) +class PartialStateResyncInfo: + joined_via: Optional[str] + servers_in_room: List[str] = attr.ib(factory=list) + + class RoomWorkerStore(CacheInvalidationWorkerStore): def __init__( self, @@ -1160,17 +1166,29 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): desc="get_partial_state_servers_at_join", ) - async def get_partial_state_rooms_and_servers( + async def get_partial_state_room_resync_info( self, - ) -> Mapping[str, Collection[str]]: - """Get all rooms containing events with partial state, and the servers known - to be in the room. + ) -> Mapping[str, PartialStateResyncInfo]: + """Get all rooms containing events with partial state, and the information + needed to restart a "resync" of those rooms. Returns: A dictionary of rooms with partial state, with room IDs as keys and lists of servers in rooms as values. """ - room_servers: Dict[str, List[str]] = {} + room_servers: Dict[str, PartialStateResyncInfo] = {} + + rows = await self.db_pool.simple_select_list( + table="partial_state_rooms", + keyvalues={}, + retcols=("room_id", "joined_via"), + desc="get_server_which_served_partial_join", + ) + + for row in rows: + room_id = row["room_id"] + joined_via = row["joined_via"] + room_servers[room_id] = PartialStateResyncInfo(joined_via=joined_via) rows = await self.db_pool.simple_select_list( "partial_state_rooms_servers", @@ -1182,7 +1200,15 @@ class RoomWorkerStore(CacheInvalidationWorkerStore): for row in rows: room_id = row["room_id"] server_name = row["server_name"] - room_servers.setdefault(room_id, []).append(server_name) + entry = room_servers.get(room_id) + if entry is None: + # There is a foreign key constraint which enforces that every room_id in + # partial_state_rooms_servers appears in partial_state_rooms. So we + # expect `entry` to be non-null. (This reasoning fails if we've + # partial-joined between the two SELECTs, but this is unlikely to happen + # in practice.) + continue + entry.servers_in_room.append(server_name) return room_servers @@ -1827,6 +1853,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): room_id: str, servers: Collection[str], device_lists_stream_id: int, + joined_via: str, ) -> None: """Mark the given room as containing events with partial state. @@ -1842,6 +1869,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): servers: other servers known to be in the room device_lists_stream_id: the device_lists stream ID at the time when we first joined the room. + joined_via: the server name we requested a partial join from. """ await self.db_pool.runInteraction( "store_partial_state_room", @@ -1849,6 +1877,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): room_id, servers, device_lists_stream_id, + joined_via, ) def _store_partial_state_room_txn( @@ -1857,6 +1886,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): room_id: str, servers: Collection[str], device_lists_stream_id: int, + joined_via: str, ) -> None: DatabasePool.simple_insert_txn( txn, @@ -1866,6 +1896,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): "device_lists_stream_id": device_lists_stream_id, # To be updated later once the join event is persisted. "join_event_id": None, + "joined_via": joined_via, }, ) DatabasePool.simple_insert_many_txn( diff --git a/synapse/storage/schema/main/delta/73/09partial_joined_via_destination.sql b/synapse/storage/schema/main/delta/73/09partial_joined_via_destination.sql new file mode 100644 index 0000000000..066d602b18 --- /dev/null +++ b/synapse/storage/schema/main/delta/73/09partial_joined_via_destination.sql @@ -0,0 +1,18 @@ +/* Copyright 2022 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. + */ + +-- When we resync partial state, we prioritise doing so using the server we +-- partial-joined from. To do this we need to record which server that was! +ALTER TABLE partial_state_rooms ADD COLUMN joined_via TEXT; |