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Faster Room Joins: don't leave a stuck room partial state flag if the join fails. (#13403)

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reivilibre 2022-08-01 16:45:39 +00:00 • committed by GitHub
parent f8e7a9418a
commit e17e5c97e0
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3 changed files with 140 additions and 15 deletions
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32
synapse/handlers/federation.py
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@ -546,9 +546,9 @@ class FederationHandler:
)
if ret.partial_state:
# TODO(faster_joins): roll this back if we don't manage to start the
# background resync (eg process_remote_join fails)
# https://github.com/matrix-org/synapse/issues/12998
# Mark the room as having partial state.
# The background process is responsible for unmarking this flag,
# even if the join fails.
await self.store.store_partial_state_room(room_id, ret.servers_in_room)
try:
@ -574,17 +574,21 @@ class FederationHandler:
room_id,
)
raise LimitExceededError(msg=e.msg, errcode=e.errcode, retry_after_ms=0)
if ret.partial_state:
# Kick off the process of asynchronously fetching the state for this
# room.
run_as_background_process(
desc="sync_partial_state_room",
func=self._sync_partial_state_room,
initial_destination=origin,
other_destinations=ret.servers_in_room,
room_id=room_id,
)
finally:
# Always kick off the background process that asynchronously fetches
# state for the room.
# If the join failed, the background process is responsible for
# cleaning up — including unmarking the room as a partial state room.
if ret.partial_state:
# Kick off the process of asynchronously fetching the state for this
# room.
run_as_background_process(
desc="sync_partial_state_room",
func=self._sync_partial_state_room,
initial_destination=origin,
other_destinations=ret.servers_in_room,
room_id=room_id,
)
# We wait here until this instance has seen the events come down
# replication (if we're using replication) as the below uses caches.