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Fix races in room stats (and other) updates. (#6187)

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Hopefully this will fix the occasional failures we were seeing in the room directory.

The problem was that events are not necessarily persisted (and `current_state_delta_stream` updated) in the same order as their stream_id. So for instance current_state_delta 9 might be persisted *before* current_state_delta 8. Then, when the room stats saw stream_id 9, it assumed it had done everything up to 9, and never came back to do stream_id 8.

We can solve this easily by only processing up to the stream_id where we know all events have been persisted.
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Richard van der Hoff 2019-10-10 11:29:01 +01:00 • committed by GitHub
parent 562b4e51dd
commit a139420a3c
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7 changed files with 63 additions and 25 deletions
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tests/handlers/test_typing.py
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@ -139,7 +139,7 @@ class TypingNotificationsTestCase(unittest.HomeserverTestCase):
defer.succeed(1)
)
self.datastore.get_current_state_deltas.return_value = None
self.datastore.get_current_state_deltas.return_value = (0, None)
self.datastore.get_to_device_stream_token = lambda: 0
self.datastore.get_new_device_msgs_for_remote = lambda *args, **kargs: ([], 0)