Reduce amount of state we pull out when attempting to send catchup PDUs. (#12963)

* Don't pull out state for catchup

* Newsfile

* Merge newsfile
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Erik Johnston 2022-06-07 16:35:56 +03:00 committed by GitHub
parent d2fd7f7b5c
commit a7e506ddee
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2 changed files with 21 additions and 11 deletions

1
changelog.d/12963.misc Normal file
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@ -0,0 +1 @@
Reduce the amount of state we pull from the DB.

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@ -37,6 +37,7 @@ 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
from synapse.visibility import filter_events_for_server
if TYPE_CHECKING:
import synapse.server
@ -77,6 +78,7 @@ class PerDestinationQueue:
):
self._server_name = hs.hostname
self._clock = hs.get_clock()
self._storage_controllers = hs.get_storage_controllers()
self._store = hs.get_datastores().main
self._transaction_manager = transaction_manager
self._instance_name = hs.get_instance_name()
@ -442,6 +444,12 @@ class PerDestinationQueue:
"This should not happen." % event_ids
)
logger.info(
"Catching up destination %s with %d PDUs",
self._destination,
len(catchup_pdus),
)
# We send transactions with events from one room only, as its likely
# that the remote will have to do additional processing, which may
# take some time. It's better to give it small amounts of work
@ -487,19 +495,20 @@ class PerDestinationQueue:
):
continue
# Filter out events where the server is not in the room,
# e.g. it may have left/been kicked. *Ideally* we'd pull
# out the kick and send that, but it's a rare edge case
# so we don't bother for now (the server that sent the
# kick should send it out if its online).
hosts = await self._state.get_hosts_in_room_at_events(
p.room_id, [p.event_id]
)
if self._destination not in hosts:
continue
new_pdus.append(p)
# Filter out events where the server is not in the room,
# e.g. it may have left/been kicked. *Ideally* we'd pull
# out the kick and send that, but it's a rare edge case
# so we don't bother for now (the server that sent the
# kick should send it out if its online).
new_pdus = await filter_events_for_server(
self._storage_controllers,
self._destination,
new_pdus,
redact=False,
)
# If we've filtered out all the extremities, fall back to
# sending the original event. This should ensure that the
# server gets at least some of missed events (especially if