mirror of
https://mau.dev/maunium/synapse.git
synced 2024-09-12 20:43:51 +00:00
026503fa3b
Federation catch up mode is very inefficient if the number of events that the remote server has missed is small, since handling gaps can be very expensive, c.f. #9492. Instead of going into catch up mode whenever we see an error, we instead do so only if we've backed off from trying the remote for more than an hour (the assumption being that in such a case it is more than a transient failure).
636 lines
24 KiB
Python
636 lines
24 KiB
Python
# -*- coding: utf-8 -*-
|
||
# Copyright 2014-2016 OpenMarket Ltd
|
||
# Copyright 2019 New Vector Ltd
|
||
#
|
||
# 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.
|
||
import datetime
|
||
import logging
|
||
from typing import TYPE_CHECKING, Dict, Hashable, Iterable, List, Optional, Tuple, cast
|
||
|
||
import attr
|
||
from prometheus_client import Counter
|
||
|
||
from synapse.api.errors import (
|
||
FederationDeniedError,
|
||
HttpResponseException,
|
||
RequestSendFailed,
|
||
)
|
||
from synapse.api.presence import UserPresenceState
|
||
from synapse.events import EventBase
|
||
from synapse.federation.units import Edu
|
||
from synapse.handlers.presence import format_user_presence_state
|
||
from synapse.metrics import sent_transactions_counter
|
||
from synapse.metrics.background_process_metrics import run_as_background_process
|
||
from synapse.types import ReadReceipt
|
||
from synapse.util.retryutils import NotRetryingDestination, get_retry_limiter
|
||
|
||
if TYPE_CHECKING:
|
||
import synapse.server
|
||
|
||
# This is defined in the Matrix spec and enforced by the receiver.
|
||
MAX_EDUS_PER_TRANSACTION = 100
|
||
|
||
logger = logging.getLogger(__name__)
|
||
|
||
|
||
sent_edus_counter = Counter(
|
||
"synapse_federation_client_sent_edus", "Total number of EDUs successfully sent"
|
||
)
|
||
|
||
sent_edus_by_type = Counter(
|
||
"synapse_federation_client_sent_edus_by_type",
|
||
"Number of sent EDUs successfully sent, by event type",
|
||
["type"],
|
||
)
|
||
|
||
|
||
class PerDestinationQueue:
|
||
"""
|
||
Manages the per-destination transmission queues.
|
||
|
||
Args:
|
||
hs
|
||
transaction_sender
|
||
destination: the server_name of the destination that we are managing
|
||
transmission for.
|
||
"""
|
||
|
||
def __init__(
|
||
self,
|
||
hs: "synapse.server.HomeServer",
|
||
transaction_manager: "synapse.federation.sender.TransactionManager",
|
||
destination: str,
|
||
):
|
||
self._server_name = hs.hostname
|
||
self._clock = hs.get_clock()
|
||
self._store = hs.get_datastore()
|
||
self._transaction_manager = transaction_manager
|
||
self._instance_name = hs.get_instance_name()
|
||
self._federation_shard_config = hs.config.worker.federation_shard_config
|
||
|
||
self._should_send_on_this_instance = True
|
||
if not self._federation_shard_config.should_handle(
|
||
self._instance_name, destination
|
||
):
|
||
# We don't raise an exception here to avoid taking out any other
|
||
# processing. We have a guard in `attempt_new_transaction` that
|
||
# ensure we don't start sending stuff.
|
||
logger.error(
|
||
"Create a per destination queue for %s on wrong worker",
|
||
destination,
|
||
)
|
||
self._should_send_on_this_instance = False
|
||
|
||
self._destination = destination
|
||
self.transmission_loop_running = False
|
||
|
||
# Flag to signal to any running transmission loop that there is new data
|
||
# queued up to be sent.
|
||
self._new_data_to_send = False
|
||
|
||
# True whilst we are sending events that the remote homeserver missed
|
||
# because it was unreachable. We start in this state so we can perform
|
||
# catch-up at startup.
|
||
# New events will only be sent once this is finished, at which point
|
||
# _catching_up is flipped to False.
|
||
self._catching_up = True # type: bool
|
||
|
||
# The stream_ordering of the most recent PDU that was discarded due to
|
||
# being in catch-up mode.
|
||
self._catchup_last_skipped = 0 # type: int
|
||
|
||
# Cache of the last successfully-transmitted stream ordering for this
|
||
# destination (we are the only updater so this is safe)
|
||
self._last_successful_stream_ordering = None # type: Optional[int]
|
||
|
||
# a queue of pending PDUs
|
||
self._pending_pdus = [] # type: List[EventBase]
|
||
|
||
# XXX this is never actually used: see
|
||
# https://github.com/matrix-org/synapse/issues/7549
|
||
self._pending_edus = [] # type: List[Edu]
|
||
|
||
# Pending EDUs by their "key". Keyed EDUs are EDUs that get clobbered
|
||
# based on their key (e.g. typing events by room_id)
|
||
# Map of (edu_type, key) -> Edu
|
||
self._pending_edus_keyed = {} # type: Dict[Tuple[str, Hashable], Edu]
|
||
|
||
# Map of user_id -> UserPresenceState of pending presence to be sent to this
|
||
# destination
|
||
self._pending_presence = {} # type: Dict[str, UserPresenceState]
|
||
|
||
# room_id -> receipt_type -> user_id -> receipt_dict
|
||
self._pending_rrs = {} # type: Dict[str, Dict[str, Dict[str, dict]]]
|
||
self._rrs_pending_flush = False
|
||
|
||
# stream_id of last successfully sent to-device message.
|
||
# NB: may be a long or an int.
|
||
self._last_device_stream_id = 0
|
||
|
||
# stream_id of last successfully sent device list update.
|
||
self._last_device_list_stream_id = 0
|
||
|
||
def __str__(self) -> str:
|
||
return "PerDestinationQueue[%s]" % self._destination
|
||
|
||
def pending_pdu_count(self) -> int:
|
||
return len(self._pending_pdus)
|
||
|
||
def pending_edu_count(self) -> int:
|
||
return (
|
||
len(self._pending_edus)
|
||
+ len(self._pending_presence)
|
||
+ len(self._pending_edus_keyed)
|
||
)
|
||
|
||
def send_pdu(self, pdu: EventBase) -> None:
|
||
"""Add a PDU to the queue, and start the transmission loop if necessary
|
||
|
||
Args:
|
||
pdu: pdu to send
|
||
"""
|
||
if not self._catching_up or self._last_successful_stream_ordering is None:
|
||
# only enqueue the PDU if we are not catching up (False) or do not
|
||
# yet know if we have anything to catch up (None)
|
||
self._pending_pdus.append(pdu)
|
||
else:
|
||
assert pdu.internal_metadata.stream_ordering
|
||
self._catchup_last_skipped = pdu.internal_metadata.stream_ordering
|
||
|
||
self.attempt_new_transaction()
|
||
|
||
def send_presence(self, states: Iterable[UserPresenceState]) -> None:
|
||
"""Add presence updates to the queue. Start the transmission loop if necessary.
|
||
|
||
Args:
|
||
states: presence to send
|
||
"""
|
||
self._pending_presence.update({state.user_id: state for state in states})
|
||
self.attempt_new_transaction()
|
||
|
||
def queue_read_receipt(self, receipt: ReadReceipt) -> None:
|
||
"""Add a RR to the list to be sent. Doesn't start the transmission loop yet
|
||
(see flush_read_receipts_for_room)
|
||
|
||
Args:
|
||
receipt: receipt to be queued
|
||
"""
|
||
self._pending_rrs.setdefault(receipt.room_id, {}).setdefault(
|
||
receipt.receipt_type, {}
|
||
)[receipt.user_id] = {"event_ids": receipt.event_ids, "data": receipt.data}
|
||
|
||
def flush_read_receipts_for_room(self, room_id: str) -> None:
|
||
# if we don't have any read-receipts for this room, it may be that we've already
|
||
# sent them out, so we don't need to flush.
|
||
if room_id not in self._pending_rrs:
|
||
return
|
||
self._rrs_pending_flush = True
|
||
self.attempt_new_transaction()
|
||
|
||
def send_keyed_edu(self, edu: Edu, key: Hashable) -> None:
|
||
self._pending_edus_keyed[(edu.edu_type, key)] = edu
|
||
self.attempt_new_transaction()
|
||
|
||
def send_edu(self, edu) -> None:
|
||
self._pending_edus.append(edu)
|
||
self.attempt_new_transaction()
|
||
|
||
def attempt_new_transaction(self) -> None:
|
||
"""Try to start a new transaction to this destination
|
||
|
||
If there is already a transaction in progress to this destination,
|
||
returns immediately. Otherwise kicks off the process of sending a
|
||
transaction in the background.
|
||
"""
|
||
|
||
# Mark that we (may) have new things to send, so that any running
|
||
# transmission loop will recheck whether there is stuff to send.
|
||
self._new_data_to_send = True
|
||
|
||
if self.transmission_loop_running:
|
||
# XXX: this can get stuck on by a never-ending
|
||
# request at which point pending_pdus just keeps growing.
|
||
# we need application-layer timeouts of some flavour of these
|
||
# requests
|
||
logger.debug("TX [%s] Transaction already in progress", self._destination)
|
||
return
|
||
|
||
if not self._should_send_on_this_instance:
|
||
# We don't raise an exception here to avoid taking out any other
|
||
# processing.
|
||
logger.error(
|
||
"Trying to start a transaction to %s on wrong worker", self._destination
|
||
)
|
||
return
|
||
|
||
logger.debug("TX [%s] Starting transaction loop", self._destination)
|
||
|
||
run_as_background_process(
|
||
"federation_transaction_transmission_loop",
|
||
self._transaction_transmission_loop,
|
||
)
|
||
|
||
async def _transaction_transmission_loop(self) -> None:
|
||
pending_pdus = [] # type: List[EventBase]
|
||
try:
|
||
self.transmission_loop_running = True
|
||
|
||
# This will throw if we wouldn't retry. We do this here so we fail
|
||
# quickly, but we will later check this again in the http client,
|
||
# hence why we throw the result away.
|
||
await get_retry_limiter(self._destination, self._clock, self._store)
|
||
|
||
if self._catching_up:
|
||
# we potentially need to catch-up first
|
||
await self._catch_up_transmission_loop()
|
||
if self._catching_up:
|
||
# not caught up yet
|
||
return
|
||
|
||
pending_pdus = []
|
||
while True:
|
||
self._new_data_to_send = False
|
||
|
||
async with _TransactionQueueManager(self) as (
|
||
pending_pdus,
|
||
pending_edus,
|
||
):
|
||
if not pending_pdus and not pending_edus:
|
||
logger.debug("TX [%s] Nothing to send", self._destination)
|
||
|
||
# If we've gotten told about new things to send during
|
||
# checking for things to send, we try looking again.
|
||
# Otherwise new PDUs or EDUs might arrive in the meantime,
|
||
# but not get sent because we hold the
|
||
# `transmission_loop_running` flag.
|
||
if self._new_data_to_send:
|
||
continue
|
||
else:
|
||
return
|
||
|
||
if pending_pdus:
|
||
logger.debug(
|
||
"TX [%s] len(pending_pdus_by_dest[dest]) = %d",
|
||
self._destination,
|
||
len(pending_pdus),
|
||
)
|
||
|
||
await self._transaction_manager.send_new_transaction(
|
||
self._destination, pending_pdus, pending_edus
|
||
)
|
||
|
||
sent_transactions_counter.inc()
|
||
sent_edus_counter.inc(len(pending_edus))
|
||
for edu in pending_edus:
|
||
sent_edus_by_type.labels(edu.edu_type).inc()
|
||
|
||
except NotRetryingDestination as e:
|
||
logger.debug(
|
||
"TX [%s] not ready for retry yet (next retry at %s) - "
|
||
"dropping transaction for now",
|
||
self._destination,
|
||
datetime.datetime.fromtimestamp(
|
||
(e.retry_last_ts + e.retry_interval) / 1000.0
|
||
),
|
||
)
|
||
|
||
if e.retry_interval > 60 * 60 * 1000:
|
||
# we won't retry for another hour!
|
||
# (this suggests a significant outage)
|
||
# We drop pending EDUs because otherwise they will
|
||
# rack up indefinitely.
|
||
# (Dropping PDUs is already performed by `_start_catching_up`.)
|
||
# Note that:
|
||
# - the EDUs that are being dropped here are those that we can
|
||
# afford to drop (specifically, only typing notifications,
|
||
# read receipts and presence updates are being dropped here)
|
||
# - Other EDUs such as to_device messages are queued with a
|
||
# different mechanism
|
||
# - this is all volatile state that would be lost if the
|
||
# federation sender restarted anyway
|
||
|
||
# dropping read receipts is a bit sad but should be solved
|
||
# through another mechanism, because this is all volatile!
|
||
self._pending_edus = []
|
||
self._pending_edus_keyed = {}
|
||
self._pending_presence = {}
|
||
self._pending_rrs = {}
|
||
|
||
self._start_catching_up()
|
||
except FederationDeniedError as e:
|
||
logger.info(e)
|
||
except HttpResponseException as e:
|
||
logger.warning(
|
||
"TX [%s] Received %d response to transaction: %s",
|
||
self._destination,
|
||
e.code,
|
||
e,
|
||
)
|
||
|
||
except RequestSendFailed as e:
|
||
logger.warning(
|
||
"TX [%s] Failed to send transaction: %s", self._destination, e
|
||
)
|
||
|
||
for p in pending_pdus:
|
||
logger.info(
|
||
"Failed to send event %s to %s", p.event_id, self._destination
|
||
)
|
||
except Exception:
|
||
logger.exception("TX [%s] Failed to send transaction", self._destination)
|
||
for p in pending_pdus:
|
||
logger.info(
|
||
"Failed to send event %s to %s", p.event_id, self._destination
|
||
)
|
||
finally:
|
||
# We want to be *very* sure we clear this after we stop processing
|
||
self.transmission_loop_running = False
|
||
|
||
async def _catch_up_transmission_loop(self) -> None:
|
||
first_catch_up_check = self._last_successful_stream_ordering is None
|
||
|
||
if first_catch_up_check:
|
||
# first catchup so get last_successful_stream_ordering from database
|
||
self._last_successful_stream_ordering = (
|
||
await self._store.get_destination_last_successful_stream_ordering(
|
||
self._destination
|
||
)
|
||
)
|
||
|
||
if self._last_successful_stream_ordering is None:
|
||
# if it's still None, then this means we don't have the information
|
||
# in our database we haven't successfully sent a PDU to this server
|
||
# (at least since the introduction of the feature tracking
|
||
# last_successful_stream_ordering).
|
||
# Sadly, this means we can't do anything here as we don't know what
|
||
# needs catching up — so catching up is futile; let's stop.
|
||
self._catching_up = False
|
||
return
|
||
|
||
# get at most 50 catchup room/PDUs
|
||
while True:
|
||
event_ids = await self._store.get_catch_up_room_event_ids(
|
||
self._destination,
|
||
self._last_successful_stream_ordering,
|
||
)
|
||
|
||
if not event_ids:
|
||
# No more events to catch up on, but we can't ignore the chance
|
||
# of a race condition, so we check that no new events have been
|
||
# skipped due to us being in catch-up mode
|
||
|
||
if self._catchup_last_skipped > self._last_successful_stream_ordering:
|
||
# another event has been skipped because we were in catch-up mode
|
||
continue
|
||
|
||
# we are done catching up!
|
||
self._catching_up = False
|
||
break
|
||
|
||
if first_catch_up_check:
|
||
# as this is our check for needing catch-up, we may have PDUs in
|
||
# the queue from before we *knew* we had to do catch-up, so
|
||
# clear those out now.
|
||
self._start_catching_up()
|
||
|
||
# fetch the relevant events from the event store
|
||
# - redacted behaviour of REDACT is fine, since we only send metadata
|
||
# of redacted events to the destination.
|
||
# - don't need to worry about rejected events as we do not actively
|
||
# forward received events over federation.
|
||
catchup_pdus = await self._store.get_events_as_list(event_ids)
|
||
if not catchup_pdus:
|
||
raise AssertionError(
|
||
"No events retrieved when we asked for %r. "
|
||
"This should not happen." % event_ids
|
||
)
|
||
|
||
if logger.isEnabledFor(logging.INFO):
|
||
rooms = [p.room_id for p in catchup_pdus]
|
||
logger.info("Catching up rooms to %s: %r", self._destination, rooms)
|
||
|
||
await self._transaction_manager.send_new_transaction(
|
||
self._destination, catchup_pdus, []
|
||
)
|
||
|
||
sent_transactions_counter.inc()
|
||
final_pdu = catchup_pdus[-1]
|
||
self._last_successful_stream_ordering = cast(
|
||
int, final_pdu.internal_metadata.stream_ordering
|
||
)
|
||
await self._store.set_destination_last_successful_stream_ordering(
|
||
self._destination, self._last_successful_stream_ordering
|
||
)
|
||
|
||
def _get_rr_edus(self, force_flush: bool) -> Iterable[Edu]:
|
||
if not self._pending_rrs:
|
||
return
|
||
if not force_flush and not self._rrs_pending_flush:
|
||
# not yet time for this lot
|
||
return
|
||
|
||
edu = Edu(
|
||
origin=self._server_name,
|
||
destination=self._destination,
|
||
edu_type="m.receipt",
|
||
content=self._pending_rrs,
|
||
)
|
||
self._pending_rrs = {}
|
||
self._rrs_pending_flush = False
|
||
yield edu
|
||
|
||
def _pop_pending_edus(self, limit: int) -> List[Edu]:
|
||
pending_edus = self._pending_edus
|
||
pending_edus, self._pending_edus = pending_edus[:limit], pending_edus[limit:]
|
||
return pending_edus
|
||
|
||
async def _get_device_update_edus(self, limit: int) -> Tuple[List[Edu], int]:
|
||
last_device_list = self._last_device_list_stream_id
|
||
|
||
# Retrieve list of new device updates to send to the destination
|
||
now_stream_id, results = await self._store.get_device_updates_by_remote(
|
||
self._destination, last_device_list, limit=limit
|
||
)
|
||
edus = [
|
||
Edu(
|
||
origin=self._server_name,
|
||
destination=self._destination,
|
||
edu_type=edu_type,
|
||
content=content,
|
||
)
|
||
for (edu_type, content) in results
|
||
]
|
||
|
||
assert len(edus) <= limit, "get_device_updates_by_remote returned too many EDUs"
|
||
|
||
return (edus, now_stream_id)
|
||
|
||
async def _get_to_device_message_edus(self, limit: int) -> Tuple[List[Edu], int]:
|
||
last_device_stream_id = self._last_device_stream_id
|
||
to_device_stream_id = self._store.get_to_device_stream_token()
|
||
contents, stream_id = await self._store.get_new_device_msgs_for_remote(
|
||
self._destination, last_device_stream_id, to_device_stream_id, limit
|
||
)
|
||
edus = [
|
||
Edu(
|
||
origin=self._server_name,
|
||
destination=self._destination,
|
||
edu_type="m.direct_to_device",
|
||
content=content,
|
||
)
|
||
for content in contents
|
||
]
|
||
|
||
return (edus, stream_id)
|
||
|
||
def _start_catching_up(self) -> None:
|
||
"""
|
||
Marks this destination as being in catch-up mode.
|
||
|
||
This throws away the PDU queue.
|
||
"""
|
||
self._catching_up = True
|
||
self._pending_pdus = []
|
||
|
||
|
||
@attr.s(slots=True)
|
||
class _TransactionQueueManager:
|
||
"""A helper async context manager for pulling stuff off the queues and
|
||
tracking what was last successfully sent, etc.
|
||
"""
|
||
|
||
queue = attr.ib(type=PerDestinationQueue)
|
||
|
||
_device_stream_id = attr.ib(type=Optional[int], default=None)
|
||
_device_list_id = attr.ib(type=Optional[int], default=None)
|
||
_last_stream_ordering = attr.ib(type=Optional[int], default=None)
|
||
_pdus = attr.ib(type=List[EventBase], factory=list)
|
||
|
||
async def __aenter__(self) -> Tuple[List[EventBase], List[Edu]]:
|
||
# First we calculate the EDUs we want to send, if any.
|
||
|
||
# We start by fetching device related EDUs, i.e device updates and to
|
||
# device messages. We have to keep 2 free slots for presence and rr_edus.
|
||
limit = MAX_EDUS_PER_TRANSACTION - 2
|
||
|
||
device_update_edus, dev_list_id = await self.queue._get_device_update_edus(
|
||
limit
|
||
)
|
||
|
||
if device_update_edus:
|
||
self._device_list_id = dev_list_id
|
||
else:
|
||
self.queue._last_device_list_stream_id = dev_list_id
|
||
|
||
limit -= len(device_update_edus)
|
||
|
||
(
|
||
to_device_edus,
|
||
device_stream_id,
|
||
) = await self.queue._get_to_device_message_edus(limit)
|
||
|
||
if to_device_edus:
|
||
self._device_stream_id = device_stream_id
|
||
else:
|
||
self.queue._last_device_stream_id = device_stream_id
|
||
|
||
pending_edus = device_update_edus + to_device_edus
|
||
|
||
# Now add the read receipt EDU.
|
||
pending_edus.extend(self.queue._get_rr_edus(force_flush=False))
|
||
|
||
# And presence EDU.
|
||
if self.queue._pending_presence:
|
||
pending_edus.append(
|
||
Edu(
|
||
origin=self.queue._server_name,
|
||
destination=self.queue._destination,
|
||
edu_type="m.presence",
|
||
content={
|
||
"push": [
|
||
format_user_presence_state(
|
||
presence, self.queue._clock.time_msec()
|
||
)
|
||
for presence in self.queue._pending_presence.values()
|
||
]
|
||
},
|
||
)
|
||
)
|
||
self.queue._pending_presence = {}
|
||
|
||
# Finally add any other types of EDUs if there is room.
|
||
pending_edus.extend(
|
||
self.queue._pop_pending_edus(MAX_EDUS_PER_TRANSACTION - len(pending_edus))
|
||
)
|
||
while (
|
||
len(pending_edus) < MAX_EDUS_PER_TRANSACTION
|
||
and self.queue._pending_edus_keyed
|
||
):
|
||
_, val = self.queue._pending_edus_keyed.popitem()
|
||
pending_edus.append(val)
|
||
|
||
# Now we look for any PDUs to send, by getting up to 50 PDUs from the
|
||
# queue
|
||
self._pdus = self.queue._pending_pdus[:50]
|
||
|
||
if not self._pdus and not pending_edus:
|
||
return [], []
|
||
|
||
# if we've decided to send a transaction anyway, and we have room, we
|
||
# may as well send any pending RRs
|
||
if len(pending_edus) < MAX_EDUS_PER_TRANSACTION:
|
||
pending_edus.extend(self.queue._get_rr_edus(force_flush=True))
|
||
|
||
if self._pdus:
|
||
self._last_stream_ordering = self._pdus[
|
||
-1
|
||
].internal_metadata.stream_ordering
|
||
assert self._last_stream_ordering
|
||
|
||
return self._pdus, pending_edus
|
||
|
||
async def __aexit__(self, exc_type, exc, tb):
|
||
if exc_type is not None:
|
||
# Failed to send transaction, so we bail out.
|
||
return
|
||
|
||
# Successfully sent transactions, so we remove pending PDUs from the queue
|
||
if self._pdus:
|
||
self.queue._pending_pdus = self.queue._pending_pdus[len(self._pdus) :]
|
||
|
||
# Succeeded to send the transaction so we record where we have sent up
|
||
# to in the various streams
|
||
|
||
if self._device_stream_id:
|
||
await self.queue._store.delete_device_msgs_for_remote(
|
||
self.queue._destination, self._device_stream_id
|
||
)
|
||
self.queue._last_device_stream_id = self._device_stream_id
|
||
|
||
# also mark the device updates as sent
|
||
if self._device_list_id:
|
||
logger.info(
|
||
"Marking as sent %r %r", self.queue._destination, self._device_list_id
|
||
)
|
||
await self.queue._store.mark_as_sent_devices_by_remote(
|
||
self.queue._destination, self._device_list_id
|
||
)
|
||
self.queue._last_device_list_stream_id = self._device_list_id
|
||
|
||
if self._last_stream_ordering:
|
||
# we sent some PDUs and it was successful, so update our
|
||
# last_successful_stream_ordering in the destinations table.
|
||
await self.queue._store.set_destination_last_successful_stream_ordering(
|
||
self.queue._destination, self._last_stream_ordering
|
||
)
|