From 1c95ddd09bbc46046a3412e7bb03a87aa3b6f65a Mon Sep 17 00:00:00 2001 From: Shay Date: Fri, 24 Feb 2023 13:15:29 -0800 Subject: Batch up storing state groups when creating new room (#14918) --- synapse/events/snapshot.py | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) (limited to 'synapse/events/snapshot.py') diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py index e0d82ad81c..a91a5d1e3c 100644 --- a/synapse/events/snapshot.py +++ b/synapse/events/snapshot.py @@ -23,6 +23,7 @@ from synapse.types import JsonDict, StateMap if TYPE_CHECKING: from synapse.storage.controllers import StorageControllers + from synapse.storage.databases import StateGroupDataStore from synapse.storage.databases.main import DataStore from synapse.types.state import StateFilter @@ -348,6 +349,54 @@ class UnpersistedEventContext(UnpersistedEventContextBase): partial_state: bool state_map_before_event: Optional[StateMap[str]] = None + @classmethod + async def batch_persist_unpersisted_contexts( + cls, + events_and_context: List[Tuple[EventBase, "UnpersistedEventContextBase"]], + room_id: str, + last_known_state_group: int, + datastore: "StateGroupDataStore", + ) -> List[Tuple[EventBase, EventContext]]: + """ + Takes a list of events and their associated unpersisted contexts and persists + the unpersisted contexts, returning a list of events and persisted contexts. + Note that all the events must be in a linear chain (ie a <- b <- c). + + Args: + events_and_context: A list of events and their unpersisted contexts + room_id: the room_id for the events + last_known_state_group: the last persisted state group + datastore: a state datastore + """ + amended_events_and_context = await datastore.store_state_deltas_for_batched( + events_and_context, room_id, last_known_state_group + ) + + events_and_persisted_context = [] + for event, unpersisted_context in amended_events_and_context: + if event.is_state(): + context = EventContext( + storage=unpersisted_context._storage, + state_group=unpersisted_context.state_group_after_event, + state_group_before_event=unpersisted_context.state_group_before_event, + state_delta_due_to_event=unpersisted_context.state_delta_due_to_event, + partial_state=unpersisted_context.partial_state, + prev_group=unpersisted_context.state_group_before_event, + delta_ids=unpersisted_context.state_delta_due_to_event, + ) + else: + context = EventContext( + storage=unpersisted_context._storage, + state_group=unpersisted_context.state_group_after_event, + state_group_before_event=unpersisted_context.state_group_before_event, + state_delta_due_to_event=unpersisted_context.state_delta_due_to_event, + partial_state=unpersisted_context.partial_state, + prev_group=unpersisted_context.prev_group_for_state_group_before_event, + delta_ids=unpersisted_context.delta_ids_to_state_group_before_event, + ) + events_and_persisted_context.append((event, context)) + return events_and_persisted_context + async def get_prev_state_ids( self, state_filter: Optional["StateFilter"] = None ) -> StateMap[str]: -- cgit 1.4.1