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https://git.anonymousland.org/anonymousland/synapse.git
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1391a76cd2
Bounce recalculation of current state to the correct event persister and move recalculation of current state into the event persistence queue, to avoid concurrent updates to a room's current state. Also give recalculation of a room's current state a real stream ordering. Signed-off-by: Sean Quah <seanq@matrix.org>
76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
# Copyright 2022 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from typing import TYPE_CHECKING, Tuple
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from twisted.web.server import Request
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from synapse.api.errors import SynapseError
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from synapse.http.server import HttpServer
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from synapse.replication.http._base import ReplicationEndpoint
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from synapse.types import JsonDict
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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logger = logging.getLogger(__name__)
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class ReplicationUpdateCurrentStateRestServlet(ReplicationEndpoint):
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"""Recalculates the current state for a room, and persists it.
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The API looks like:
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POST /_synapse/replication/update_current_state/:room_id
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{}
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200 OK
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{}
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"""
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NAME = "update_current_state"
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PATH_ARGS = ("room_id",)
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def __init__(self, hs: "HomeServer"):
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super().__init__(hs)
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self._state_handler = hs.get_state_handler()
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self._events_shard_config = hs.config.worker.events_shard_config
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self._instance_name = hs.get_instance_name()
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@staticmethod
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async def _serialize_payload(room_id: str) -> JsonDict: # type: ignore[override]
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return {}
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async def _handle_request( # type: ignore[override]
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self, request: Request, room_id: str
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) -> Tuple[int, JsonDict]:
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writer_instance = self._events_shard_config.get_instance(room_id)
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if writer_instance != self._instance_name:
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raise SynapseError(
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400, "/update_current_state request was routed to the wrong worker"
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)
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await self._state_handler.update_current_state(room_id)
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return 200, {}
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def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
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if hs.get_instance_name() in hs.config.worker.writers.events:
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ReplicationUpdateCurrentStateRestServlet(hs).register(http_server)
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