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Fix another logcontext leak in _persist_events

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We need to run the errback in the sentinel context to avoid losing our own
context.

Also: add logging to runInteraction to help identify where "Starting db
connection from sentinel context" warnings are coming from
This commit is contained in:
Richard van der Hoff 2018-07-25 10:47:57 +01:00
parent 1e5dbdcbb1
commit 07defd5fe6
3 changed files with 11 additions and 5 deletions
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9
synapse/storage/events.py
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@ -142,15 +142,14 @@ 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)
except Exception:
with PreserveLoggingContext():
item.deferred.errback()
else:
with PreserveLoggingContext():
item.deferred.callback(ret)
except Exception:
item.deferred.errback()
finally:
queue = self._event_persist_queues.pop(room_id, None)
if queue: