MirrorHub/synapse
0
0
Fork 1
mirror of https://mau.dev/maunium/synapse.git synced 2024-06-08 21:58:53 +02:00
Code Issues Projects Releases Wiki Activity

Merge pull request #5825 from matrix-org/erikj/fix_empty_limited_sync

Browse source 
Handle TimelineBatch being limited and empty.
This commit is contained in:
Erik Johnston 2019-08-06 15:39:44 +01:00 committed by GitHub
parent edeae53221 977fa4a717
commit d1b5b055be
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 38 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
changelog.d/5825.bugfix Normal file
View file

@ -0,0 +1 @@
Fix bug where user `/sync` stream could get wedged in rare circumstances.

43
synapse/handlers/sync.py
View file

@ -781,9 +781,17 @@ class SyncHandler(object):
lazy_load_members=lazy_load_members,
)
elif batch.limited:
state_at_timeline_start = yield self.store.get_state_ids_for_event(
batch.events[0].event_id, state_filter=state_filter
)
if batch:
state_at_timeline_start = yield self.store.get_state_ids_for_event(
batch.events[0].event_id, state_filter=state_filter
)
else:
# Its not clear how we get here, but empirically we do
# (#5407). Logging has been added elsewhere to try and
# figure out where this state comes from.
state_at_timeline_start = yield self.get_state_at(
room_id, stream_position=now_token, state_filter=state_filter
)
# for now, we disable LL for gappy syncs - see
# https://github.com/vector-im/riot-web/issues/7211#issuecomment-419976346
@ -803,9 +811,17 @@ class SyncHandler(object):
room_id, stream_position=since_token, state_filter=state_filter
)
current_state_ids = yield self.store.get_state_ids_for_event(
batch.events[-1].event_id, state_filter=state_filter
)
if batch:
current_state_ids = yield self.store.get_state_ids_for_event(
batch.events[-1].event_id, state_filter=state_filter
)
else:
# Its not clear how we get here, but empirically we do
# (#5407). Logging has been added elsewhere to try and
# figure out where this state comes from.
current_state_ids = yield self.get_state_at(
room_id, stream_position=now_token, state_filter=state_filter
)
state_ids = _calculate_state(
timeline_contains=timeline_state,
@ -1755,6 +1771,21 @@ class SyncHandler(object):
newly_joined_room=newly_joined,
)
if not batch and batch.limited:
# This resulted in #5407, which is weird, so lets log! We do it
# here as we have the maximum amount of information.
user_id = sync_result_builder.sync_config.user.to_string()
logger.info(
"Issue #5407: Found limited batch with no events. user %s, room %s,"
" sync_config %s, newly_joined %s, events %s, batch %s.",
user_id,
room_id,
sync_config,
newly_joined,
events,
batch,
)
if newly_joined:
# debug for https://github.com/matrix-org/synapse/issues/4422
issue4422_logger.debug(