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Don't send normal presence updates over federation replication stream (#9828)

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Erik Johnston 2021-04-19 10:50:49 +01:00 • committed by GitHub
parent c571736c6c
commit 2b7dd21655
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5 changed files with 75 additions and 183 deletions
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96
synapse/federation/sender/__init__.py
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@ -24,8 +24,6 @@ from synapse.events import EventBase
from synapse.federation.sender.per_destination_queue import PerDestinationQueue
from synapse.federation.sender.transaction_manager import TransactionManager
from synapse.federation.units import Edu
from synapse.handlers.presence import get_interested_remotes
from synapse.logging.context import preserve_fn
from synapse.metrics import (
LaterGauge,
event_processing_loop_counter,
@ -34,7 +32,7 @@ from synapse.metrics import (
)
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import Collection, JsonDict, ReadReceipt, RoomStreamToken
from synapse.util.metrics import Measure, measure_func
from synapse.util.metrics import Measure
if TYPE_CHECKING:
from synapse.events.presence_router import PresenceRouter
@ -79,15 +77,6 @@ class AbstractFederationSender(metaclass=abc.ABCMeta):
"""
raise NotImplementedError()
@abc.abstractmethod
def send_presence(self, states: List[UserPresenceState]) -> None:
"""Send the new presence states to the appropriate destinations.
This actually queues up the presence states ready for sending and
triggers a background task to process them and send out the transactions.
"""
raise NotImplementedError()
@abc.abstractmethod
def send_presence_to_destinations(
self, states: Iterable[UserPresenceState], destinations: Iterable[str]
@ -176,11 +165,6 @@ class FederationSender(AbstractFederationSender):
),
)
# Map of user_id -> UserPresenceState for all the pending presence
# to be sent out by user_id. Entries here get processed and put in
# pending_presence_by_dest
self.pending_presence = {} # type: Dict[str, UserPresenceState]
LaterGauge(
"synapse_federation_transaction_queue_pending_pdus",
"",
@ -201,8 +185,6 @@ class FederationSender(AbstractFederationSender):
self._is_processing = False
self._last_poked_id = -1
self._processing_pending_presence = False
# map from room_id to a set of PerDestinationQueues which we believe are
# awaiting a call to flush_read_receipts_for_room. The presence of an entry
# here for a given room means that we are rate-limiting RR flushes to that room,
@ -546,48 +528,6 @@ class FederationSender(AbstractFederationSender):
for queue in queues:
queue.flush_read_receipts_for_room(room_id)
@preserve_fn # the caller should not yield on this
async def send_presence(self, states: List[UserPresenceState]) -> None:
"""Send the new presence states to the appropriate destinations.
This actually queues up the presence states ready for sending and
triggers a background task to process them and send out the transactions.
"""
if not self.hs.config.use_presence:
# No-op if presence is disabled.
return
# First we queue up the new presence by user ID, so multiple presence
# updates in quick succession are correctly handled.
# We only want to send presence for our own users, so lets always just
# filter here just in case.
self.pending_presence.update(
{state.user_id: state for state in states if self.is_mine_id(state.user_id)}
)
# We then handle the new pending presence in batches, first figuring
# out the destinations we need to send each state to and then poking it
# to attempt a new transaction. We linearize this so that we don't
# accidentally mess up the ordering and send multiple presence updates
# in the wrong order
if self._processing_pending_presence:
return
self._processing_pending_presence = True
try:
while True:
states_map = self.pending_presence
self.pending_presence = {}
if not states_map:
break
await self._process_presence_inner(list(states_map.values()))
except Exception:
logger.exception("Error sending presence states to servers")
finally:
self._processing_pending_presence = False
def send_presence_to_destinations(
self, states: Iterable[UserPresenceState], destinations: Iterable[str]
) -> None:
@ -608,40 +548,6 @@ class FederationSender(AbstractFederationSender):
continue
self._get_per_destination_queue(destination).send_presence(states)
@measure_func("txnqueue._process_presence")
async def _process_presence_inner(self, states: List[UserPresenceState]) -> None:
"""Given a list of states populate self.pending_presence_by_dest and
poke to send a new transaction to each destination
"""
# We pull the presence router here instead of __init__
# to prevent a dependency cycle:
#
# AuthHandler -> Notifier -> FederationSender
# -> PresenceRouter -> ModuleApi -> AuthHandler
if self._presence_router is None:
self._presence_router = self.hs.get_presence_router()
assert self._presence_router is not None
hosts_and_states = await get_interested_remotes(
self.store,
self._presence_router,
states,
self.state,
)
for destinations, states in hosts_and_states:
for destination in destinations:
if destination == self.server_name:
continue
if not self._federation_shard_config.should_handle(
self._instance_name, destination
):
continue
self._get_per_destination_queue(destination).send_presence(states)
def build_and_send_edu(
self,
destination: str,