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Merge pull request #2790 from matrix-org/rav/preserve_event_logcontext_leak

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Fix a logcontext leak in persist_events
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Richard van der Hoff 2018-01-16 14:09:13 +00:00 committed by GitHub
commit f5f89fda21
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1 changed files with 8 additions and 1 deletions
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9
synapse/storage/events.py
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@ -146,6 +146,9 @@ class _EventPeristenceQueue(object):
try:
queue = self._get_drainining_queue(room_id)
for item in queue:
# handle_queue_loop runs in the sentinel logcontext, so
# there is no need to preserve_fn when running the
# callbacks on the deferred.
try:
ret = yield per_item_callback(item)
item.deferred.callback(ret)
@ -157,7 +160,11 @@ class _EventPeristenceQueue(object):
self._event_persist_queues[room_id] = queue
self._currently_persisting_rooms.discard(room_id)
preserve_fn(handle_queue_loop)()
# set handle_queue_loop off on the background. We don't want to
# attribute work done in it to the current request, so we drop the
# logcontext altogether.
with PreserveLoggingContext():
handle_queue_loop()
def _get_drainining_queue(self, room_id):
queue = self._event_persist_queues.setdefault(room_id, deque())